clang/tools/libclang/CXCursor.cpp

   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
  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
  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
 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
 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
 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::CXXParenListInitExprClass:
 647     K = CXCursor_CXXParenListInitExpr;
 648     break;
 649
 650   case Stmt::MSDependentExistsStmtClass:
 651     K = CXCursor_UnexposedStmt;
 652     break;
 653   case Stmt::OMPCanonicalLoopClass:
 654     K = CXCursor_OMPCanonicalLoop;
 655     break;
 656   case Stmt::OMPMetaDirectiveClass:
 657     K = CXCursor_OMPMetaDirective;
 658     break;
 659   case Stmt::OMPParallelDirectiveClass:
 660     K = CXCursor_OMPParallelDirective;
 661     break;
 662   case Stmt::OMPSimdDirectiveClass:
 663     K = CXCursor_OMPSimdDirective;
 664     break;
 665   case Stmt::OMPTileDirectiveClass:
 666     K = CXCursor_OMPTileDirective;
 667     break;
 668   case Stmt::OMPUnrollDirectiveClass:
 669     K = CXCursor_OMPUnrollDirective;
 670     break;
 671   case Stmt::OMPForDirectiveClass:
 672     K = CXCursor_OMPForDirective;
 673     break;
 674   case Stmt::OMPForSimdDirectiveClass:
 675     K = CXCursor_OMPForSimdDirective;
 676     break;
 677   case Stmt::OMPSectionsDirectiveClass:
 678     K = CXCursor_OMPSectionsDirective;
 679     break;
 680   case Stmt::OMPSectionDirectiveClass:
 681     K = CXCursor_OMPSectionDirective;
 682     break;
 683   case Stmt::OMPScopeDirectiveClass:
 684     K = CXCursor_OMPScopeDirective;
 685     break;
 686   case Stmt::OMPSingleDirectiveClass:
 687     K = CXCursor_OMPSingleDirective;
 688     break;
 689   case Stmt::OMPMasterDirectiveClass:
 690     K = CXCursor_OMPMasterDirective;
 691     break;
 692   case Stmt::OMPCriticalDirectiveClass:
 693     K = CXCursor_OMPCriticalDirective;
 694     break;
 695   case Stmt::OMPParallelForDirectiveClass:
 696     K = CXCursor_OMPParallelForDirective;
 697     break;
 698   case Stmt::OMPParallelForSimdDirectiveClass:
 699     K = CXCursor_OMPParallelForSimdDirective;
 700     break;
 701   case Stmt::OMPParallelMasterDirectiveClass:
 702     K = CXCursor_OMPParallelMasterDirective;
 703     break;
 704   case Stmt::OMPParallelMaskedDirectiveClass:
 705     K = CXCursor_OMPParallelMaskedDirective;
 706     break;
 707   case Stmt::OMPParallelSectionsDirectiveClass:
 708     K = CXCursor_OMPParallelSectionsDirective;
 709     break;
 710   case Stmt::OMPTaskDirectiveClass:
 711     K = CXCursor_OMPTaskDirective;
 712     break;
 713   case Stmt::OMPTaskyieldDirectiveClass:
 714     K = CXCursor_OMPTaskyieldDirective;
 715     break;
 716   case Stmt::OMPBarrierDirectiveClass:
 717     K = CXCursor_OMPBarrierDirective;
 718     break;
 719   case Stmt::OMPTaskwaitDirectiveClass:
 720     K = CXCursor_OMPTaskwaitDirective;
 721     break;
 722   case Stmt::OMPErrorDirectiveClass:
 723     K = CXCursor_OMPErrorDirective;
 724     break;
 725   case Stmt::OMPTaskgroupDirectiveClass:
 726     K = CXCursor_OMPTaskgroupDirective;
 727     break;
 728   case Stmt::OMPFlushDirectiveClass:
 729     K = CXCursor_OMPFlushDirective;
 730     break;
 731   case Stmt::OMPDepobjDirectiveClass:
 732     K = CXCursor_OMPDepobjDirective;
 733     break;
 734   case Stmt::OMPScanDirectiveClass:
 735     K = CXCursor_OMPScanDirective;
 736     break;
 737   case Stmt::OMPOrderedDirectiveClass:
 738     K = CXCursor_OMPOrderedDirective;
 739     break;
 740   case Stmt::OMPAtomicDirectiveClass:
 741     K = CXCursor_OMPAtomicDirective;
 742     break;
 743   case Stmt::OMPTargetDirectiveClass:
 744     K = CXCursor_OMPTargetDirective;
 745     break;
 746   case Stmt::OMPTargetDataDirectiveClass:
 747     K = CXCursor_OMPTargetDataDirective;
 748     break;
 749   case Stmt::OMPTargetEnterDataDirectiveClass:
 750     K = CXCursor_OMPTargetEnterDataDirective;
 751     break;
 752   case Stmt::OMPTargetExitDataDirectiveClass:
 753     K = CXCursor_OMPTargetExitDataDirective;
 754     break;
 755   case Stmt::OMPTargetParallelDirectiveClass:
 756     K = CXCursor_OMPTargetParallelDirective;
 757     break;
 758   case Stmt::OMPTargetParallelForDirectiveClass:
 759     K = CXCursor_OMPTargetParallelForDirective;
 760     break;
 761   case Stmt::OMPTargetUpdateDirectiveClass:
 762     K = CXCursor_OMPTargetUpdateDirective;
 763     break;
 764   case Stmt::OMPTeamsDirectiveClass:
 765     K = CXCursor_OMPTeamsDirective;
 766     break;
 767   case Stmt::OMPCancellationPointDirectiveClass:
 768     K = CXCursor_OMPCancellationPointDirective;
 769     break;
 770   case Stmt::OMPCancelDirectiveClass:
 771     K = CXCursor_OMPCancelDirective;
 772     break;
 773   case Stmt::OMPTaskLoopDirectiveClass:
 774     K = CXCursor_OMPTaskLoopDirective;
 775     break;
 776   case Stmt::OMPTaskLoopSimdDirectiveClass:
 777     K = CXCursor_OMPTaskLoopSimdDirective;
 778     break;
 779   case Stmt::OMPMasterTaskLoopDirectiveClass:
 780     K = CXCursor_OMPMasterTaskLoopDirective;
 781     break;
 782   case Stmt::OMPMaskedTaskLoopDirectiveClass:
 783     K = CXCursor_OMPMaskedTaskLoopDirective;
 784     break;
 785   case Stmt::OMPMasterTaskLoopSimdDirectiveClass:
 786     K = CXCursor_OMPMasterTaskLoopSimdDirective;
 787     break;
 788   case Stmt::OMPMaskedTaskLoopSimdDirectiveClass:
 789     K = CXCursor_OMPMaskedTaskLoopSimdDirective;
 790     break;
 791   case Stmt::OMPParallelMasterTaskLoopDirectiveClass:
 792     K = CXCursor_OMPParallelMasterTaskLoopDirective;
 793     break;
 794   case Stmt::OMPParallelMaskedTaskLoopDirectiveClass:
 795     K = CXCursor_OMPParallelMaskedTaskLoopDirective;
 796     break;
 797   case Stmt::OMPParallelMasterTaskLoopSimdDirectiveClass:
 798     K = CXCursor_OMPParallelMasterTaskLoopSimdDirective;
 799     break;
 800   case Stmt::OMPParallelMaskedTaskLoopSimdDirectiveClass:
 801     K = CXCursor_OMPParallelMaskedTaskLoopSimdDirective;
 802     break;
 803   case Stmt::OMPDistributeDirectiveClass:
 804     K = CXCursor_OMPDistributeDirective;
 805     break;
 806   case Stmt::OMPDistributeParallelForDirectiveClass:
 807     K = CXCursor_OMPDistributeParallelForDirective;
 808     break;
 809   case Stmt::OMPDistributeParallelForSimdDirectiveClass:
 810     K = CXCursor_OMPDistributeParallelForSimdDirective;
 811     break;
 812   case Stmt::OMPDistributeSimdDirectiveClass:
 813     K = CXCursor_OMPDistributeSimdDirective;
 814     break;
 815   case Stmt::OMPTargetParallelForSimdDirectiveClass:
 816     K = CXCursor_OMPTargetParallelForSimdDirective;
 817     break;
 818   case Stmt::OMPTargetSimdDirectiveClass:
 819     K = CXCursor_OMPTargetSimdDirective;
 820     break;
 821   case Stmt::OMPTeamsDistributeDirectiveClass:
 822     K = CXCursor_OMPTeamsDistributeDirective;
 823     break;
 824   case Stmt::OMPTeamsDistributeSimdDirectiveClass:
 825     K = CXCursor_OMPTeamsDistributeSimdDirective;
 826     break;
 827   case Stmt::OMPTeamsDistributeParallelForSimdDirectiveClass:
 828     K = CXCursor_OMPTeamsDistributeParallelForSimdDirective;
 829     break;
 830   case Stmt::OMPTeamsDistributeParallelForDirectiveClass:
 831     K = CXCursor_OMPTeamsDistributeParallelForDirective;
 832     break;
 833   case Stmt::OMPTargetTeamsDirectiveClass:
 834     K = CXCursor_OMPTargetTeamsDirective;
 835     break;
 836   case Stmt::OMPTargetTeamsDistributeDirectiveClass:
 837     K = CXCursor_OMPTargetTeamsDistributeDirective;
 838     break;
 839   case Stmt::OMPTargetTeamsDistributeParallelForDirectiveClass:
 840     K = CXCursor_OMPTargetTeamsDistributeParallelForDirective;
 841     break;
 842   case Stmt::OMPTargetTeamsDistributeParallelForSimdDirectiveClass:
 843     K = CXCursor_OMPTargetTeamsDistributeParallelForSimdDirective;
 844     break;
 845   case Stmt::OMPTargetTeamsDistributeSimdDirectiveClass:
 846     K = CXCursor_OMPTargetTeamsDistributeSimdDirective;
 847     break;
 848   case Stmt::OMPInteropDirectiveClass:
 849     K = CXCursor_OMPInteropDirective;
 850     break;
 851   case Stmt::OMPDispatchDirectiveClass:
 852     K = CXCursor_OMPDispatchDirective;
 853     break;
 854   case Stmt::OMPMaskedDirectiveClass:
 855     K = CXCursor_OMPMaskedDirective;
 856     break;
 857   case Stmt::OMPGenericLoopDirectiveClass:
 858     K = CXCursor_OMPGenericLoopDirective;
 859     break;
 860   case Stmt::OMPTeamsGenericLoopDirectiveClass:
 861     K = CXCursor_OMPTeamsGenericLoopDirective;
 862     break;
 863   case Stmt::OMPTargetTeamsGenericLoopDirectiveClass:
 864     K = CXCursor_OMPTargetTeamsGenericLoopDirective;
 865     break;
 866   case Stmt::OMPParallelGenericLoopDirectiveClass:
 867     K = CXCursor_OMPParallelGenericLoopDirective;
 868     break;
 869   case Stmt::OMPTargetParallelGenericLoopDirectiveClass:
 870     K = CXCursor_OMPTargetParallelGenericLoopDirective;
 871     break;
 872   case Stmt::BuiltinBitCastExprClass:
 873     K = CXCursor_BuiltinBitCastExpr;
 874   }
 875
 876   CXCursor C = {K, 0, {Parent, S, TU}};
 877   return C;
 878 }
 879
 880 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super,
 881                                                SourceLocation Loc,
 882                                                CXTranslationUnit TU) {
 883   assert(Super && TU && "Invalid arguments!");
 884   void *RawLoc = Loc.getPtrEncoding();
 885   CXCursor C = {CXCursor_ObjCSuperClassRef, 0, {Super, RawLoc, TU}};
 886   return C;
 887 }
 888
 889 std::pair<const ObjCInterfaceDecl *, SourceLocation>
 890 cxcursor::getCursorObjCSuperClassRef(CXCursor C) {
 891   assert(C.kind == CXCursor_ObjCSuperClassRef);
 892   return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
 893                         SourceLocation::getFromPtrEncoding(C.data[1]));
 894 }
 895
 896 CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto,
 897                                              SourceLocation Loc,
 898                                              CXTranslationUnit TU) {
 899   assert(Proto && TU && "Invalid arguments!");
 900   void *RawLoc = Loc.getPtrEncoding();
 901   CXCursor C = {CXCursor_ObjCProtocolRef, 0, {Proto, RawLoc, TU}};
 902   return C;
 903 }
 904
 905 std::pair<const ObjCProtocolDecl *, SourceLocation>
 906 cxcursor::getCursorObjCProtocolRef(CXCursor C) {
 907   assert(C.kind == CXCursor_ObjCProtocolRef);
 908   return std::make_pair(static_cast<const ObjCProtocolDecl *>(C.data[0]),
 909                         SourceLocation::getFromPtrEncoding(C.data[1]));
 910 }
 911
 912 CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class,
 913                                           SourceLocation Loc,
 914                                           CXTranslationUnit TU) {
 915   // 'Class' can be null for invalid code.
 916   if (!Class)
 917     return MakeCXCursorInvalid(CXCursor_InvalidCode);
 918   assert(TU && "Invalid arguments!");
 919   void *RawLoc = Loc.getPtrEncoding();
 920   CXCursor C = {CXCursor_ObjCClassRef, 0, {Class, RawLoc, TU}};
 921   return C;
 922 }
 923
 924 std::pair<const ObjCInterfaceDecl *, SourceLocation>
 925 cxcursor::getCursorObjCClassRef(CXCursor C) {
 926   assert(C.kind == CXCursor_ObjCClassRef);
 927   return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]),
 928                         SourceLocation::getFromPtrEncoding(C.data[1]));
 929 }
 930
 931 CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc,
 932                                      CXTranslationUnit TU) {
 933   assert(Type && TU && "Invalid arguments!");
 934   void *RawLoc = Loc.getPtrEncoding();
 935   CXCursor C = {CXCursor_TypeRef, 0, {Type, RawLoc, TU}};
 936   return C;
 937 }
 938
 939 std::pair<const TypeDecl *, SourceLocation>
 940 cxcursor::getCursorTypeRef(CXCursor C) {
 941   assert(C.kind == CXCursor_TypeRef);
 942   return std::make_pair(static_cast<const TypeDecl *>(C.data[0]),
 943                         SourceLocation::getFromPtrEncoding(C.data[1]));
 944 }
 945
 946 CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template,
 947                                          SourceLocation Loc,
 948                                          CXTranslationUnit TU) {
 949   assert(Template && TU && "Invalid arguments!");
 950   void *RawLoc = Loc.getPtrEncoding();
 951   CXCursor C = {CXCursor_TemplateRef, 0, {Template, RawLoc, TU}};
 952   return C;
 953 }
 954
 955 std::pair<const TemplateDecl *, SourceLocation>
 956 cxcursor::getCursorTemplateRef(CXCursor C) {
 957   assert(C.kind == CXCursor_TemplateRef);
 958   return std::make_pair(static_cast<const TemplateDecl *>(C.data[0]),
 959                         SourceLocation::getFromPtrEncoding(C.data[1]));
 960 }
 961
 962 CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS,
 963                                           SourceLocation Loc,
 964                                           CXTranslationUnit TU) {
 965
 966   assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU &&
 967          "Invalid arguments!");
 968   void *RawLoc = Loc.getPtrEncoding();
 969   CXCursor C = {CXCursor_NamespaceRef, 0, {NS, RawLoc, TU}};
 970   return C;
 971 }
 972
 973 std::pair<const NamedDecl *, SourceLocation>
 974 cxcursor::getCursorNamespaceRef(CXCursor C) {
 975   assert(C.kind == CXCursor_NamespaceRef);
 976   return std::make_pair(static_cast<const NamedDecl *>(C.data[0]),
 977                         SourceLocation::getFromPtrEncoding(C.data[1]));
 978 }
 979
 980 CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc,
 981                                          CXTranslationUnit TU) {
 982
 983   assert(Var && TU && "Invalid arguments!");
 984   void *RawLoc = Loc.getPtrEncoding();
 985   CXCursor C = {CXCursor_VariableRef, 0, {Var, RawLoc, TU}};
 986   return C;
 987 }
 988
 989 std::pair<const VarDecl *, SourceLocation>
 990 cxcursor::getCursorVariableRef(CXCursor C) {
 991   assert(C.kind == CXCursor_VariableRef);
 992   return std::make_pair(static_cast<const VarDecl *>(C.data[0]),
 993                         SourceLocation::getFromPtrEncoding(C.data[1]));
 994 }
 995
 996 CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field,
 997                                        SourceLocation Loc,
 998                                        CXTranslationUnit TU) {
 999
1000   assert(Field && TU && "Invalid arguments!");
1001   void *RawLoc = Loc.getPtrEncoding();
1002   CXCursor C = {CXCursor_MemberRef, 0, {Field, RawLoc, TU}};
1003   return C;
1004 }
1005
1006 std::pair<const FieldDecl *, SourceLocation>
1007 cxcursor::getCursorMemberRef(CXCursor C) {
1008   assert(C.kind == CXCursor_MemberRef);
1009   return std::make_pair(static_cast<const FieldDecl *>(C.data[0]),
1010                         SourceLocation::getFromPtrEncoding(C.data[1]));
1011 }
1012
1013 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B,
1014                                               CXTranslationUnit TU) {
1015   CXCursor C = {CXCursor_CXXBaseSpecifier, 0, {B, nullptr, TU}};
1016   return C;
1017 }
1018
1019 const CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) {
1020   assert(C.kind == CXCursor_CXXBaseSpecifier);
1021   return static_cast<const CXXBaseSpecifier *>(C.data[0]);
1022 }
1023
1024 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range,
1025                                                     CXTranslationUnit TU) {
1026   CXCursor C = {
1027       CXCursor_PreprocessingDirective,
1028       0,
1029       {Range.getBegin().getPtrEncoding(), Range.getEnd().getPtrEncoding(), TU}};
1030   return C;
1031 }
1032
1033 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) {
1034   assert(C.kind == CXCursor_PreprocessingDirective);
1035   SourceRange Range(SourceLocation::getFromPtrEncoding(C.data[0]),
1036                     SourceLocation::getFromPtrEncoding(C.data[1]));
1037   ASTUnit *TU = getCursorASTUnit(C);
1038   return TU->mapRangeFromPreamble(Range);
1039 }
1040
1041 CXCursor cxcursor::MakeMacroDefinitionCursor(const MacroDefinitionRecord *MI,
1042                                              CXTranslationUnit TU) {
1043   CXCursor C = {CXCursor_MacroDefinition, 0, {MI, nullptr, TU}};
1044   return C;
1045 }
1046
1047 const MacroDefinitionRecord *cxcursor::getCursorMacroDefinition(CXCursor C) {
1048   assert(C.kind == CXCursor_MacroDefinition);
1049   return static_cast<const MacroDefinitionRecord *>(C.data[0]);
1050 }
1051
1052 CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI,
1053                                             CXTranslationUnit TU) {
1054   CXCursor C = {CXCursor_MacroExpansion, 0, {MI, nullptr, TU}};
1055   return C;
1056 }
1057
1058 CXCursor cxcursor::MakeMacroExpansionCursor(MacroDefinitionRecord *MI,
1059                                             SourceLocation Loc,
1060                                             CXTranslationUnit TU) {
1061   assert(Loc.isValid());
1062   CXCursor C = {CXCursor_MacroExpansion, 0, {MI, Loc.getPtrEncoding(), TU}};
1063   return C;
1064 }
1065
1066 const IdentifierInfo *cxcursor::MacroExpansionCursor::getName() const {
1067   if (isPseudo())
1068     return getAsMacroDefinition()->getName();
1069   return getAsMacroExpansion()->getName();
1070 }
1071 const MacroDefinitionRecord *
1072 cxcursor::MacroExpansionCursor::getDefinition() const {
1073   if (isPseudo())
1074     return getAsMacroDefinition();
1075   return getAsMacroExpansion()->getDefinition();
1076 }
1077 SourceRange cxcursor::MacroExpansionCursor::getSourceRange() const {
1078   if (isPseudo())
1079     return getPseudoLoc();
1080   return getAsMacroExpansion()->getSourceRange();
1081 }
1082
1083 CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID,
1084                                                 CXTranslationUnit TU) {
1085   CXCursor C = {CXCursor_InclusionDirective, 0, {ID, nullptr, TU}};
1086   return C;
1087 }
1088
1089 const InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) {
1090   assert(C.kind == CXCursor_InclusionDirective);
1091   return static_cast<const InclusionDirective *>(C.data[0]);
1092 }
1093
1094 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc,
1095                                       CXTranslationUnit TU) {
1096
1097   assert(Label && TU && "Invalid arguments!");
1098   void *RawLoc = Loc.getPtrEncoding();
1099   CXCursor C = {CXCursor_LabelRef, 0, {Label, RawLoc, TU}};
1100   return C;
1101 }
1102
1103 std::pair<const LabelStmt *, SourceLocation>
1104 cxcursor::getCursorLabelRef(CXCursor C) {
1105   assert(C.kind == CXCursor_LabelRef);
1106   return std::make_pair(static_cast<const LabelStmt *>(C.data[0]),
1107                         SourceLocation::getFromPtrEncoding(C.data[1]));
1108 }
1109
1110 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const OverloadExpr *E,
1111                                                CXTranslationUnit TU) {
1112   assert(E && TU && "Invalid arguments!");
1113   OverloadedDeclRefStorage Storage(E);
1114   void *RawLoc = E->getNameLoc().getPtrEncoding();
1115   CXCursor C = {
1116       CXCursor_OverloadedDeclRef, 0, {Storage.getOpaqueValue(), RawLoc, TU}};
1117   return C;
1118 }
1119
1120 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const Decl *D,
1121                                                SourceLocation Loc,
1122                                                CXTranslationUnit TU) {
1123   assert(D && TU && "Invalid arguments!");
1124   void *RawLoc = Loc.getPtrEncoding();
1125   OverloadedDeclRefStorage Storage(D);
1126   CXCursor C = {
1127       CXCursor_OverloadedDeclRef, 0, {Storage.getOpaqueValue(), RawLoc, TU}};
1128   return C;
1129 }
1130
1131 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name,
1132                                                SourceLocation Loc,
1133                                                CXTranslationUnit TU) {
1134   assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!");
1135   void *RawLoc = Loc.getPtrEncoding();
1136   OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate());
1137   CXCursor C = {
1138       CXCursor_OverloadedDeclRef, 0, {Storage.getOpaqueValue(), RawLoc, TU}};
1139   return C;
1140 }
1141
1142 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation>
1143 cxcursor::getCursorOverloadedDeclRef(CXCursor C) {
1144   assert(C.kind == CXCursor_OverloadedDeclRef);
1145   return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(
1146                             const_cast<void *>(C.data[0])),
1147                         SourceLocation::getFromPtrEncoding(C.data[1]));
1148 }
1149
1150 const Decl *cxcursor::getCursorDecl(CXCursor Cursor) {
1151   return static_cast<const Decl *>(Cursor.data[0]);
1152 }
1153
1154 const Expr *cxcursor::getCursorExpr(CXCursor Cursor) {
1155   return dyn_cast_or_null<Expr>(getCursorStmt(Cursor));
1156 }
1157
1158 const Stmt *cxcursor::getCursorStmt(CXCursor Cursor) {
1159   if (Cursor.kind == CXCursor_ObjCSuperClassRef ||
1160       Cursor.kind == CXCursor_ObjCProtocolRef ||
1161       Cursor.kind == CXCursor_ObjCClassRef)
1162     return nullptr;
1163
1164   return static_cast<const Stmt *>(Cursor.data[1]);
1165 }
1166
1167 const Attr *cxcursor::getCursorAttr(CXCursor Cursor) {
1168   return static_cast<const Attr *>(Cursor.data[1]);
1169 }
1170
1171 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) {
1172   return getCursorASTUnit(Cursor)->getASTContext();
1173 }
1174
1175 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) {
1176   CXTranslationUnit TU = getCursorTU(Cursor);
1177   if (!TU)
1178     return nullptr;
1179   return cxtu::getASTUnit(TU);
1180 }
1181
1182 CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) {
1183   return static_cast<CXTranslationUnit>(const_cast<void *>(Cursor.data[2]));
1184 }
1185
1186 void cxcursor::getOverriddenCursors(CXCursor cursor,
1187                                     SmallVectorImpl<CXCursor> &overridden) {
1188   assert(clang_isDeclaration(cursor.kind));
1189   const NamedDecl *D = dyn_cast_or_null<NamedDecl>(getCursorDecl(cursor));
1190   if (!D)
1191     return;
1192
1193   CXTranslationUnit TU = getCursorTU(cursor);
1194   SmallVector<const NamedDecl *, 8> OverDecls;
1195   D->getASTContext().getOverriddenMethods(D, OverDecls);
1196
1197   for (SmallVectorImpl<const NamedDecl *>::iterator I = OverDecls.begin(),
1198                                                     E = OverDecls.end();
1199        I != E; ++I) {
1200     overridden.push_back(MakeCXCursor(*I, TU));
1201   }
1202 }
1203
1204 std::pair<int, SourceLocation>
1205 cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) {
1206   if (cursor.kind == CXCursor_ObjCMessageExpr) {
1207     if (cursor.xdata != -1)
1208       return std::make_pair(cursor.xdata,
1209                             cast<ObjCMessageExpr>(getCursorExpr(cursor))
1210                                 ->getSelectorLoc(cursor.xdata));
1211   } else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
1212              cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
1213     if (cursor.xdata != -1)
1214       return std::make_pair(cursor.xdata,
1215                             cast<ObjCMethodDecl>(getCursorDecl(cursor))
1216                                 ->getSelectorLoc(cursor.xdata));
1217   }
1218
1219   return std::make_pair(-1, SourceLocation());
1220 }
1221
1222 CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) {
1223   CXCursor newCursor = cursor;
1224
1225   if (cursor.kind == CXCursor_ObjCMessageExpr) {
1226     if (SelIdx == -1 ||
1227         unsigned(SelIdx) >=
1228             cast<ObjCMessageExpr>(getCursorExpr(cursor))->getNumSelectorLocs())
1229       newCursor.xdata = -1;
1230     else
1231       newCursor.xdata = SelIdx;
1232   } else if (cursor.kind == CXCursor_ObjCClassMethodDecl ||
1233              cursor.kind == CXCursor_ObjCInstanceMethodDecl) {
1234     if (SelIdx == -1 ||
1235         unsigned(SelIdx) >=
1236             cast<ObjCMethodDecl>(getCursorDecl(cursor))->getNumSelectorLocs())
1237       newCursor.xdata = -1;
1238     else
1239       newCursor.xdata = SelIdx;
1240   }
1241
1242   return newCursor;
1243 }
1244
1245 CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) {
1246   if (cursor.kind != CXCursor_CallExpr)
1247     return cursor;
1248
1249   if (cursor.xdata == 0)
1250     return cursor;
1251
1252   const Expr *E = getCursorExpr(cursor);
1253   TypeSourceInfo *Type = nullptr;
1254   if (const CXXUnresolvedConstructExpr *UnCtor =
1255           dyn_cast<CXXUnresolvedConstructExpr>(E)) {
1256     Type = UnCtor->getTypeSourceInfo();
1257   } else if (const CXXTemporaryObjectExpr *Tmp =
1258                  dyn_cast<CXXTemporaryObjectExpr>(E)) {
1259     Type = Tmp->getTypeSourceInfo();
1260   }
1261
1262   if (!Type)
1263     return cursor;
1264
1265   CXTranslationUnit TU = getCursorTU(cursor);
1266   QualType Ty = Type->getType();
1267   TypeLoc TL = Type->getTypeLoc();
1268   SourceLocation Loc = TL.getBeginLoc();
1269
1270   if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) {
1271     Ty = ElabT->getNamedType();
1272     ElaboratedTypeLoc ElabTL = TL.castAs<ElaboratedTypeLoc>();
1273     Loc = ElabTL.getNamedTypeLoc().getBeginLoc();
1274   }
1275
1276   if (const TypedefType *Typedef = Ty->getAs<TypedefType>())
1277     return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU);
1278   if (const TagType *Tag = Ty->getAs<TagType>())
1279     return MakeCursorTypeRef(Tag->getDecl(), Loc, TU);
1280   if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>())
1281     return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU);
1282
1283   return cursor;
1284 }
1285
1286 bool cxcursor::operator==(CXCursor X, CXCursor Y) {
1287   return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] &&
1288          X.data[2] == Y.data[2];
1289 }
1290
1291 // FIXME: Remove once we can model DeclGroups and their appropriate ranges
1292 // properly in the ASTs.
1293 bool cxcursor::isFirstInDeclGroup(CXCursor C) {
1294   assert(clang_isDeclaration(C.kind));
1295   return ((uintptr_t)(C.data[1])) != 0;
1296 }
1297
1298 //===----------------------------------------------------------------------===//
1299 // libclang CXCursor APIs
1300 //===----------------------------------------------------------------------===//
1301
1302 int clang_Cursor_isNull(CXCursor cursor) {
1303   return clang_equalCursors(cursor, clang_getNullCursor());
1304 }
1305
1306 CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) {
1307   return getCursorTU(cursor);
1308 }
1309
1310 int clang_Cursor_getNumArguments(CXCursor C) {
1311   if (clang_isDeclaration(C.kind)) {
1312     const Decl *D = cxcursor::getCursorDecl(C);
1313     if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D))
1314       return MD->param_size();
1315     if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D))
1316       return FD->param_size();
1317   }
1318
1319   if (clang_isExpression(C.kind)) {
1320     const Expr *E = cxcursor::getCursorExpr(C);
1321     if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
1322       return CE->getNumArgs();
1323     }
1324     if (const CXXConstructExpr *CE = dyn_cast<CXXConstructExpr>(E)) {
1325       return CE->getNumArgs();
1326     }
1327   }
1328
1329   return -1;
1330 }
1331
1332 CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i) {
1333   if (clang_isDeclaration(C.kind)) {
1334     const Decl *D = cxcursor::getCursorDecl(C);
1335     if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) {
1336       if (i < MD->param_size())
1337         return cxcursor::MakeCXCursor(MD->parameters()[i],
1338                                       cxcursor::getCursorTU(C));
1339     } else if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) {
1340       if (i < FD->param_size())
1341         return cxcursor::MakeCXCursor(FD->parameters()[i],
1342                                       cxcursor::getCursorTU(C));
1343     }
1344   }
1345
1346   if (clang_isExpression(C.kind)) {
1347     const Expr *E = cxcursor::getCursorExpr(C);
1348     if (const CallExpr *CE = dyn_cast<CallExpr>(E)) {
1349       if (i < CE->getNumArgs()) {
1350         return cxcursor::MakeCXCursor(CE->getArg(i), getCursorDecl(C),
1351                                       cxcursor::getCursorTU(C));
1352       }
1353     }
1354     if (const CXXConstructExpr *CE = dyn_cast<CXXConstructExpr>(E)) {
1355       if (i < CE->getNumArgs()) {
1356         return cxcursor::MakeCXCursor(CE->getArg(i), getCursorDecl(C),
1357                                       cxcursor::getCursorTU(C));
1358       }
1359     }
1360   }
1361
1362   return clang_getNullCursor();
1363 }
1364
1365 int clang_Cursor_getNumTemplateArguments(CXCursor C) {
1366   CXCursorKind kind = clang_getCursorKind(C);
1367   if (kind != CXCursor_FunctionDecl && kind != CXCursor_StructDecl &&
1368       kind != CXCursor_ClassDecl &&
1369       kind != CXCursor_ClassTemplatePartialSpecialization) {
1370     return -1;
1371   }
1372
1373   if (const auto *FD =
1374           llvm::dyn_cast_if_present<clang::FunctionDecl>(getCursorDecl(C))) {
1375     const FunctionTemplateSpecializationInfo *SpecInfo =
1376         FD->getTemplateSpecializationInfo();
1377     if (!SpecInfo) {
1378       return -1;
1379     }
1380     return SpecInfo->TemplateArguments->size();
1381   }
1382
1383   if (const auto *SD =
1384           llvm::dyn_cast_if_present<clang::ClassTemplateSpecializationDecl>(
1385               getCursorDecl(C))) {
1386     return SD->getTemplateArgs().size();
1387   }
1388
1389   return -1;
1390 }
1391
1392 enum CXGetTemplateArgumentStatus {
1393   /** The operation completed successfully */
1394   CXGetTemplateArgumentStatus_Success = 0,
1395
1396   /** The specified cursor did not represent a FunctionDecl or
1397       ClassTemplateSpecializationDecl.                         */
1398   CXGetTemplateArgumentStatus_CursorNotCompatibleDecl = -1,
1399
1400   /** The specified cursor was not castable to a FunctionDecl or
1401       ClassTemplateSpecializationDecl.                         */
1402   CXGetTemplateArgumentStatus_BadDeclCast = -2,
1403
1404   /** A NULL FunctionTemplateSpecializationInfo was retrieved. */
1405   CXGetTemplateArgumentStatus_NullTemplSpecInfo = -3,
1406
1407   /** An invalid (OOB) argument index was specified */
1408   CXGetTemplateArgumentStatus_InvalidIndex = -4
1409 };
1410
1411 static int clang_Cursor_getTemplateArgument(CXCursor C, unsigned I,
1412                                             TemplateArgument *TA) {
1413   CXCursorKind kind = clang_getCursorKind(C);
1414   if (kind != CXCursor_FunctionDecl && kind != CXCursor_StructDecl &&
1415       kind != CXCursor_ClassDecl &&
1416       kind != CXCursor_ClassTemplatePartialSpecialization) {
1417     return -1;
1418   }
1419
1420   if (const auto *FD =
1421           llvm::dyn_cast_if_present<clang::FunctionDecl>(getCursorDecl(C))) {
1422
1423     const FunctionTemplateSpecializationInfo *SpecInfo =
1424         FD->getTemplateSpecializationInfo();
1425     if (!SpecInfo) {
1426       return CXGetTemplateArgumentStatus_NullTemplSpecInfo;
1427     }
1428
1429     if (I >= SpecInfo->TemplateArguments->size()) {
1430       return CXGetTemplateArgumentStatus_InvalidIndex;
1431     }
1432
1433     *TA = SpecInfo->TemplateArguments->get(I);
1434     return 0;
1435   }
1436
1437   if (const auto *SD =
1438           llvm::dyn_cast_if_present<clang::ClassTemplateSpecializationDecl>(
1439               getCursorDecl(C))) {
1440     if (I >= SD->getTemplateArgs().size()) {
1441       return CXGetTemplateArgumentStatus_InvalidIndex;
1442     }
1443
1444     *TA = SD->getTemplateArgs()[I];
1445     return 0;
1446   }
1447
1448   return CXGetTemplateArgumentStatus_BadDeclCast;
1449 }
1450
1451 enum CXTemplateArgumentKind clang_Cursor_getTemplateArgumentKind(CXCursor C,
1452                                                                  unsigned I) {
1453   TemplateArgument TA;
1454   if (clang_Cursor_getTemplateArgument(C, I, &TA)) {
1455     return CXTemplateArgumentKind_Invalid;
1456   }
1457
1458   switch (TA.getKind()) {
1459   case TemplateArgument::Null:
1460     return CXTemplateArgumentKind_Null;
1461   case TemplateArgument::Type:
1462     return CXTemplateArgumentKind_Type;
1463   case TemplateArgument::Declaration:
1464     return CXTemplateArgumentKind_Declaration;
1465   case TemplateArgument::NullPtr:
1466     return CXTemplateArgumentKind_NullPtr;
1467   case TemplateArgument::Integral:
1468     return CXTemplateArgumentKind_Integral;
1469   case TemplateArgument::Template:
1470     return CXTemplateArgumentKind_Template;
1471   case TemplateArgument::TemplateExpansion:
1472     return CXTemplateArgumentKind_TemplateExpansion;
1473   case TemplateArgument::Expression:
1474     return CXTemplateArgumentKind_Expression;
1475   case TemplateArgument::Pack:
1476     return CXTemplateArgumentKind_Pack;
1477   }
1478
1479   return CXTemplateArgumentKind_Invalid;
1480 }
1481
1482 CXType clang_Cursor_getTemplateArgumentType(CXCursor C, unsigned I) {
1483   TemplateArgument TA;
1484   if (clang_Cursor_getTemplateArgument(C, I, &TA) !=
1485       CXGetTemplateArgumentStatus_Success) {
1486     return cxtype::MakeCXType(QualType(), getCursorTU(C));
1487   }
1488
1489   if (TA.getKind() != TemplateArgument::Type) {
1490     return cxtype::MakeCXType(QualType(), getCursorTU(C));
1491   }
1492
1493   return cxtype::MakeCXType(TA.getAsType(), getCursorTU(C));
1494 }
1495
1496 long long clang_Cursor_getTemplateArgumentValue(CXCursor C, unsigned I) {
1497   TemplateArgument TA;
1498   if (clang_Cursor_getTemplateArgument(C, I, &TA) !=
1499       CXGetTemplateArgumentStatus_Success) {
1500     assert(0 && "Unable to retrieve TemplateArgument");
1501     return 0;
1502   }
1503
1504   if (TA.getKind() != TemplateArgument::Integral) {
1505     assert(0 && "Passed template argument is not Integral");
1506     return 0;
1507   }
1508
1509   return TA.getAsIntegral().getSExtValue();
1510 }
1511
1512 unsigned long long clang_Cursor_getTemplateArgumentUnsignedValue(CXCursor C,
1513                                                                  unsigned I) {
1514   TemplateArgument TA;
1515   if (clang_Cursor_getTemplateArgument(C, I, &TA) !=
1516       CXGetTemplateArgumentStatus_Success) {
1517     assert(0 && "Unable to retrieve TemplateArgument");
1518     return 0;
1519   }
1520
1521   if (TA.getKind() != TemplateArgument::Integral) {
1522     assert(0 && "Passed template argument is not Integral");
1523     return 0;
1524   }
1525
1526   return TA.getAsIntegral().getZExtValue();
1527 }
1528
1529 //===----------------------------------------------------------------------===//
1530 // CXCursorSet.
1531 //===----------------------------------------------------------------------===//
1532
1533 typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl;
1534
1535 static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) {
1536   return (CXCursorSet)setImpl;
1537 }
1538 static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) {
1539   return (CXCursorSet_Impl *)set;
1540 }
1541 namespace llvm {
1542 template <> struct DenseMapInfo<CXCursor> {
1543 public:
1544   static inline CXCursor getEmptyKey() {
1545     return MakeCXCursorInvalid(CXCursor_InvalidFile);
1546   }
1547   static inline CXCursor getTombstoneKey() {
1548     return MakeCXCursorInvalid(CXCursor_NoDeclFound);
1549   }
1550   static inline unsigned getHashValue(const CXCursor &cursor) {
1551     return llvm::DenseMapInfo<std::pair<const void *, const void *>>::
1552         getHashValue(std::make_pair(cursor.data[0], cursor.data[1]));
1553   }
1554   static inline bool isEqual(const CXCursor &x, const CXCursor &y) {
1555     return x.kind == y.kind && x.data[0] == y.data[0] && x.data[1] == y.data[1];
1556   }
1557 };
1558 } // namespace llvm
1559
1560 CXCursorSet clang_createCXCursorSet() {
1561   return packCXCursorSet(new CXCursorSet_Impl());
1562 }
1563
1564 void clang_disposeCXCursorSet(CXCursorSet set) {
1565   delete unpackCXCursorSet(set);
1566 }
1567
1568 unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) {
1569   CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
1570   if (!setImpl)
1571     return 0;
1572   return setImpl->find(cursor) != setImpl->end();
1573 }
1574
1575 unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) {
1576   // Do not insert invalid cursors into the set.
1577   if (cursor.kind >= CXCursor_FirstInvalid &&
1578       cursor.kind <= CXCursor_LastInvalid)
1579     return 1;
1580
1581   CXCursorSet_Impl *setImpl = unpackCXCursorSet(set);
1582   if (!setImpl)
1583     return 1;
1584   unsigned &entry = (*setImpl)[cursor];
1585   unsigned flag = entry == 0 ? 1 : 0;
1586   entry = 1;
1587   return flag;
1588 }
1589
1590 CXCompletionString clang_getCursorCompletionString(CXCursor cursor) {
1591   enum CXCursorKind kind = clang_getCursorKind(cursor);
1592   if (clang_isDeclaration(kind)) {
1593     const Decl *decl = getCursorDecl(cursor);
1594     if (const NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) {
1595       ASTUnit *unit = getCursorASTUnit(cursor);
1596       CodeCompletionResult Result(namedDecl, CCP_Declaration);
1597       CodeCompletionString *String = Result.CreateCodeCompletionString(
1598           unit->getASTContext(), unit->getPreprocessor(),
1599           CodeCompletionContext::CCC_Other,
1600           unit->getCodeCompletionTUInfo().getAllocator(),
1601           unit->getCodeCompletionTUInfo(), true);
1602       return String;
1603     }
1604   } else if (kind == CXCursor_MacroDefinition) {
1605     const MacroDefinitionRecord *definition = getCursorMacroDefinition(cursor);
1606     const IdentifierInfo *Macro = definition->getName();
1607     ASTUnit *unit = getCursorASTUnit(cursor);
1608     CodeCompletionResult Result(
1609         Macro,
1610         unit->getPreprocessor().getMacroDefinition(Macro).getMacroInfo());
1611     CodeCompletionString *String = Result.CreateCodeCompletionString(
1612         unit->getASTContext(), unit->getPreprocessor(),
1613         CodeCompletionContext::CCC_Other,
1614         unit->getCodeCompletionTUInfo().getAllocator(),
1615         unit->getCodeCompletionTUInfo(), false);
1616     return String;
1617   }
1618   return nullptr;
1619 }
1620
1621 namespace {
1622 struct OverridenCursorsPool {
1623   typedef SmallVector<CXCursor, 2> CursorVec;
1624   std::vector<CursorVec *> AllCursors;
1625   std::vector<CursorVec *> AvailableCursors;
1626
1627   ~OverridenCursorsPool() {
1628     for (std::vector<CursorVec *>::iterator I = AllCursors.begin(),
1629                                             E = AllCursors.end();
1630          I != E; ++I) {
1631       delete *I;
1632     }
1633   }
1634 };
1635 } // namespace
1636
1637 void *cxcursor::createOverridenCXCursorsPool() {
1638   return new OverridenCursorsPool();
1639 }
1640
1641 void cxcursor::disposeOverridenCXCursorsPool(void *pool) {
1642   delete static_cast<OverridenCursorsPool *>(pool);
1643 }
1644
1645 void clang_getOverriddenCursors(CXCursor cursor, CXCursor **overridden,
1646                                 unsigned *num_overridden) {
1647   if (overridden)
1648     *overridden = nullptr;
1649   if (num_overridden)
1650     *num_overridden = 0;
1651
1652   CXTranslationUnit TU = cxcursor::getCursorTU(cursor);
1653
1654   if (!overridden || !num_overridden || !TU)
1655     return;
1656
1657   if (!clang_isDeclaration(cursor.kind))
1658     return;
1659
1660   OverridenCursorsPool &pool =
1661       *static_cast<OverridenCursorsPool *>(TU->OverridenCursorsPool);
1662
1663   OverridenCursorsPool::CursorVec *Vec = nullptr;
1664
1665   if (!pool.AvailableCursors.empty()) {
1666     Vec = pool.AvailableCursors.back();
1667     pool.AvailableCursors.pop_back();
1668   } else {
1669     Vec = new OverridenCursorsPool::CursorVec();
1670     pool.AllCursors.push_back(Vec);
1671   }
1672
1673   // Clear out the vector, but don't free the memory contents.  This
1674   // reduces malloc() traffic.
1675   Vec->clear();
1676
1677   // Use the first entry to contain a back reference to the vector.
1678   // This is a complete hack.
1679   CXCursor backRefCursor = MakeCXCursorInvalid(CXCursor_InvalidFile, TU);
1680   backRefCursor.data[0] = Vec;
1681   assert(cxcursor::getCursorTU(backRefCursor) == TU);
1682   Vec->push_back(backRefCursor);
1683
1684   // Get the overridden cursors.
1685   cxcursor::getOverriddenCursors(cursor, *Vec);
1686
1687   // Did we get any overridden cursors?  If not, return Vec to the pool
1688   // of available cursor vectors.
1689   if (Vec->size() == 1) {
1690     pool.AvailableCursors.push_back(Vec);
1691     return;
1692   }
1693
1694   // Now tell the caller about the overridden cursors.
1695   assert(Vec->size() > 1);
1696   *overridden = &((*Vec)[1]);
1697   *num_overridden = Vec->size() - 1;
1698 }
1699
1700 void clang_disposeOverriddenCursors(CXCursor *overridden) {
1701   if (!overridden)
1702     return;
1703
1704   // Use pointer arithmetic to get back the first faux entry
1705   // which has a back-reference to the TU and the vector.
1706   --overridden;
1707   OverridenCursorsPool::CursorVec *Vec =
1708       static_cast<OverridenCursorsPool::CursorVec *>(
1709           const_cast<void *>(overridden->data[0]));
1710   CXTranslationUnit TU = getCursorTU(*overridden);
1711
1712   assert(Vec && TU);
1713
1714   OverridenCursorsPool &pool =
1715       *static_cast<OverridenCursorsPool *>(TU->OverridenCursorsPool);
1716
1717   pool.AvailableCursors.push_back(Vec);
1718 }
1719
1720 int clang_Cursor_isDynamicCall(CXCursor C) {
1721   const Expr *E = nullptr;
1722   if (clang_isExpression(C.kind))
1723     E = getCursorExpr(C);
1724   if (!E)
1725     return 0;
1726
1727   if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E)) {
1728     if (MsgE->getReceiverKind() != ObjCMessageExpr::Instance)
1729       return false;
1730     if (auto *RecE = dyn_cast<ObjCMessageExpr>(
1731             MsgE->getInstanceReceiver()->IgnoreParenCasts())) {
1732       if (RecE->getMethodFamily() == OMF_alloc)
1733         return false;
1734     }
1735     return true;
1736   }
1737
1738   if (auto *PropRefE = dyn_cast<ObjCPropertyRefExpr>(E)) {
1739     return !PropRefE->isSuperReceiver();
1740   }
1741
1742   const MemberExpr *ME = nullptr;
1743   if (isa<MemberExpr>(E))
1744     ME = cast<MemberExpr>(E);
1745   else if (const CallExpr *CE = dyn_cast<CallExpr>(E))
1746     ME = dyn_cast_or_null<MemberExpr>(CE->getCallee());
1747
1748   if (ME) {
1749     if (const CXXMethodDecl *MD =
1750             dyn_cast_or_null<CXXMethodDecl>(ME->getMemberDecl()))
1751       return MD->isVirtual() &&
1752              ME->performsVirtualDispatch(
1753                  cxcursor::getCursorContext(C).getLangOpts());
1754   }
1755
1756   return 0;
1757 }
1758
1759 CXType clang_Cursor_getReceiverType(CXCursor C) {
1760   CXTranslationUnit TU = cxcursor::getCursorTU(C);
1761   const Expr *E = nullptr;
1762   if (clang_isExpression(C.kind))
1763     E = getCursorExpr(C);
1764
1765   if (const ObjCMessageExpr *MsgE = dyn_cast_or_null<ObjCMessageExpr>(E))
1766     return cxtype::MakeCXType(MsgE->getReceiverType(), TU);
1767
1768   if (auto *PropRefE = dyn_cast<ObjCPropertyRefExpr>(E)) {
1769     return cxtype::MakeCXType(
1770         PropRefE->getReceiverType(cxcursor::getCursorContext(C)), TU);
1771   }
1772
1773   const MemberExpr *ME = nullptr;
1774   if (isa<MemberExpr>(E))
1775     ME = cast<MemberExpr>(E);
1776   else if (const CallExpr *CE = dyn_cast<CallExpr>(E))
1777     ME = dyn_cast_or_null<MemberExpr>(CE->getCallee());
1778
1779   if (ME) {
1780     if (isa_and_nonnull<CXXMethodDecl>(ME->getMemberDecl())) {
1781       auto receiverTy = ME->getBase()->IgnoreImpCasts()->getType();
1782       return cxtype::MakeCXType(receiverTy, TU);
1783     }
1784   }
1785
1786   return cxtype::MakeCXType(QualType(), TU);
1787 }