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/Attr.h" 22 #include "clang/AST/Decl.h" 23 #include "clang/AST/DeclCXX.h" 24 #include "clang/AST/DeclObjC.h" 25 #include "clang/AST/DeclTemplate.h" 26 #include "clang/AST/Expr.h" 27 #include "clang/AST/ExprCXX.h" 28 #include "clang/AST/ExprObjC.h" 29 #include "clang/Frontend/ASTUnit.h" 30 #include "llvm/Support/ErrorHandling.h" 31 32 using namespace clang; 33 using namespace cxcursor; 34 35 CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K, CXTranslationUnit TU) { 36 assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid); 37 CXCursor C = { K, 0, { nullptr, nullptr, TU } }; 38 return C; 39 } 40 41 static CXCursorKind GetCursorKind(const Attr *A) { 42 assert(A && "Invalid arguments!"); 43 switch (A->getKind()) { 44 default: break; 45 case attr::IBAction: return CXCursor_IBActionAttr; 46 case attr::IBOutlet: return CXCursor_IBOutletAttr; 47 case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr; 48 case attr::Final: return CXCursor_CXXFinalAttr; 49 case attr::Override: return CXCursor_CXXOverrideAttr; 50 case attr::Annotate: return CXCursor_AnnotateAttr; 51 case attr::AsmLabel: return CXCursor_AsmLabelAttr; 52 case attr::Packed: return CXCursor_PackedAttr; 53 case attr::Pure: return CXCursor_PureAttr; 54 case attr::Const: return CXCursor_ConstAttr; 55 case attr::NoDuplicate: return CXCursor_NoDuplicateAttr; 56 case attr::CUDAConstant: return CXCursor_CUDAConstantAttr; 57 case attr::CUDADevice: return CXCursor_CUDADeviceAttr; 58 case attr::CUDAGlobal: return CXCursor_CUDAGlobalAttr; 59 case attr::CUDAHost: return CXCursor_CUDAHostAttr; 60 case attr::CUDAShared: return CXCursor_CUDASharedAttr; 61 } 62 63 return CXCursor_UnexposedAttr; 64 } 65 66 CXCursor cxcursor::MakeCXCursor(const Attr *A, const Decl *Parent, 67 CXTranslationUnit TU) { 68 assert(A && Parent && TU && "Invalid arguments!"); 69 CXCursor C = { GetCursorKind(A), 0, { Parent, A, TU } }; 70 return C; 71 } 72 73 CXCursor cxcursor::MakeCXCursor(const Decl *D, CXTranslationUnit TU, 74 SourceRange RegionOfInterest, 75 bool FirstInDeclGroup) { 76 assert(D && TU && "Invalid arguments!"); 77 78 CXCursorKind K = getCursorKindForDecl(D); 79 80 if (K == CXCursor_ObjCClassMethodDecl || 81 K == CXCursor_ObjCInstanceMethodDecl) { 82 int SelectorIdIndex = -1; 83 // Check if cursor points to a selector id. 84 if (RegionOfInterest.isValid() && 85 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) { 86 SmallVector<SourceLocation, 16> SelLocs; 87 cast<ObjCMethodDecl>(D)->getSelectorLocs(SelLocs); 88 SmallVectorImpl<SourceLocation>::iterator 89 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin()); 90 if (I != SelLocs.end()) 91 SelectorIdIndex = I - SelLocs.begin(); 92 } 93 CXCursor C = { K, SelectorIdIndex, 94 { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }}; 95 return C; 96 } 97 98 CXCursor C = { K, 0, { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }}; 99 return C; 100 } 101 102 CXCursor cxcursor::MakeCXCursor(const Stmt *S, const Decl *Parent, 103 CXTranslationUnit TU, 104 SourceRange RegionOfInterest) { 105 assert(S && TU && "Invalid arguments!"); 106 CXCursorKind K = CXCursor_NotImplemented; 107 108 switch (S->getStmtClass()) { 109 case Stmt::NoStmtClass: 110 break; 111 112 case Stmt::CaseStmtClass: 113 K = CXCursor_CaseStmt; 114 break; 115 116 case Stmt::DefaultStmtClass: 117 K = CXCursor_DefaultStmt; 118 break; 119 120 case Stmt::IfStmtClass: 121 K = CXCursor_IfStmt; 122 break; 123 124 case Stmt::SwitchStmtClass: 125 K = CXCursor_SwitchStmt; 126 break; 127 128 case Stmt::WhileStmtClass: 129 K = CXCursor_WhileStmt; 130 break; 131 132 case Stmt::DoStmtClass: 133 K = CXCursor_DoStmt; 134 break; 135 136 case Stmt::ForStmtClass: 137 K = CXCursor_ForStmt; 138 break; 139 140 case Stmt::GotoStmtClass: 141 K = CXCursor_GotoStmt; 142 break; 143 144 case Stmt::IndirectGotoStmtClass: 145 K = CXCursor_IndirectGotoStmt; 146 break; 147 148 case Stmt::ContinueStmtClass: 149 K = CXCursor_ContinueStmt; 150 break; 151 152 case Stmt::BreakStmtClass: 153 K = CXCursor_BreakStmt; 154 break; 155 156 case Stmt::ReturnStmtClass: 157 K = CXCursor_ReturnStmt; 158 break; 159 160 case Stmt::GCCAsmStmtClass: 161 K = CXCursor_GCCAsmStmt; 162 break; 163 164 case Stmt::MSAsmStmtClass: 165 K = CXCursor_MSAsmStmt; 166 break; 167 168 case Stmt::ObjCAtTryStmtClass: 169 K = CXCursor_ObjCAtTryStmt; 170 break; 171 172 case Stmt::ObjCAtCatchStmtClass: 173 K = CXCursor_ObjCAtCatchStmt; 174 break; 175 176 case Stmt::ObjCAtFinallyStmtClass: 177 K = CXCursor_ObjCAtFinallyStmt; 178 break; 179 180 case Stmt::ObjCAtThrowStmtClass: 181 K = CXCursor_ObjCAtThrowStmt; 182 break; 183 184 case Stmt::ObjCAtSynchronizedStmtClass: 185 K = CXCursor_ObjCAtSynchronizedStmt; 186 break; 187 188 case Stmt::ObjCAutoreleasePoolStmtClass: 189 K = CXCursor_ObjCAutoreleasePoolStmt; 190 break; 191 192 case Stmt::ObjCForCollectionStmtClass: 193 K = CXCursor_ObjCForCollectionStmt; 194 break; 195 196 case Stmt::CXXCatchStmtClass: 197 K = CXCursor_CXXCatchStmt; 198 break; 199 200 case Stmt::CXXTryStmtClass: 201 K = CXCursor_CXXTryStmt; 202 break; 203 204 case Stmt::CXXForRangeStmtClass: 205 K = CXCursor_CXXForRangeStmt; 206 break; 207 208 case Stmt::SEHTryStmtClass: 209 K = CXCursor_SEHTryStmt; 210 break; 211 212 case Stmt::SEHExceptStmtClass: 213 K = CXCursor_SEHExceptStmt; 214 break; 215 216 case Stmt::SEHFinallyStmtClass: 217 K = CXCursor_SEHFinallyStmt; 218 break; 219 220 case Stmt::SEHLeaveStmtClass: 221 K = CXCursor_SEHLeaveStmt; 222 break; 223 224 case Stmt::ArrayTypeTraitExprClass: 225 case Stmt::AsTypeExprClass: 226 case Stmt::AtomicExprClass: 227 case Stmt::BinaryConditionalOperatorClass: 228 case Stmt::TypeTraitExprClass: 229 case Stmt::CXXBindTemporaryExprClass: 230 case Stmt::CXXDefaultArgExprClass: 231 case Stmt::CXXDefaultInitExprClass: 232 case Stmt::CXXStdInitializerListExprClass: 233 case Stmt::CXXScalarValueInitExprClass: 234 case Stmt::CXXUuidofExprClass: 235 case Stmt::ChooseExprClass: 236 case Stmt::DesignatedInitExprClass: 237 case Stmt::ExprWithCleanupsClass: 238 case Stmt::ExpressionTraitExprClass: 239 case Stmt::ExtVectorElementExprClass: 240 case Stmt::ImplicitCastExprClass: 241 case Stmt::ImplicitValueInitExprClass: 242 case Stmt::MaterializeTemporaryExprClass: 243 case Stmt::ObjCIndirectCopyRestoreExprClass: 244 case Stmt::OffsetOfExprClass: 245 case Stmt::ParenListExprClass: 246 case Stmt::PredefinedExprClass: 247 case Stmt::ShuffleVectorExprClass: 248 case Stmt::ConvertVectorExprClass: 249 case Stmt::UnaryExprOrTypeTraitExprClass: 250 case Stmt::VAArgExprClass: 251 case Stmt::ObjCArrayLiteralClass: 252 case Stmt::ObjCDictionaryLiteralClass: 253 case Stmt::ObjCBoxedExprClass: 254 case Stmt::ObjCSubscriptRefExprClass: 255 K = CXCursor_UnexposedExpr; 256 break; 257 258 case Stmt::OpaqueValueExprClass: 259 if (Expr *Src = cast<OpaqueValueExpr>(S)->getSourceExpr()) 260 return MakeCXCursor(Src, Parent, TU, RegionOfInterest); 261 K = CXCursor_UnexposedExpr; 262 break; 263 264 case Stmt::PseudoObjectExprClass: 265 return MakeCXCursor(cast<PseudoObjectExpr>(S)->getSyntacticForm(), 266 Parent, TU, RegionOfInterest); 267 268 case Stmt::CompoundStmtClass: 269 K = CXCursor_CompoundStmt; 270 break; 271 272 case Stmt::NullStmtClass: 273 K = CXCursor_NullStmt; 274 break; 275 276 case Stmt::LabelStmtClass: 277 K = CXCursor_LabelStmt; 278 break; 279 280 case Stmt::AttributedStmtClass: 281 K = CXCursor_UnexposedStmt; 282 break; 283 284 case Stmt::DeclStmtClass: 285 K = CXCursor_DeclStmt; 286 break; 287 288 case Stmt::CapturedStmtClass: 289 K = CXCursor_UnexposedStmt; 290 break; 291 292 case Stmt::IntegerLiteralClass: 293 K = CXCursor_IntegerLiteral; 294 break; 295 296 case Stmt::FloatingLiteralClass: 297 K = CXCursor_FloatingLiteral; 298 break; 299 300 case Stmt::ImaginaryLiteralClass: 301 K = CXCursor_ImaginaryLiteral; 302 break; 303 304 case Stmt::StringLiteralClass: 305 K = CXCursor_StringLiteral; 306 break; 307 308 case Stmt::CharacterLiteralClass: 309 K = CXCursor_CharacterLiteral; 310 break; 311 312 case Stmt::ParenExprClass: 313 K = CXCursor_ParenExpr; 314 break; 315 316 case Stmt::UnaryOperatorClass: 317 K = CXCursor_UnaryOperator; 318 break; 319 320 case Stmt::CXXNoexceptExprClass: 321 K = CXCursor_UnaryExpr; 322 break; 323 324 case Stmt::ArraySubscriptExprClass: 325 K = CXCursor_ArraySubscriptExpr; 326 break; 327 328 case Stmt::BinaryOperatorClass: 329 K = CXCursor_BinaryOperator; 330 break; 331 332 case Stmt::CompoundAssignOperatorClass: 333 K = CXCursor_CompoundAssignOperator; 334 break; 335 336 case Stmt::ConditionalOperatorClass: 337 K = CXCursor_ConditionalOperator; 338 break; 339 340 case Stmt::CStyleCastExprClass: 341 K = CXCursor_CStyleCastExpr; 342 break; 343 344 case Stmt::CompoundLiteralExprClass: 345 K = CXCursor_CompoundLiteralExpr; 346 break; 347 348 case Stmt::InitListExprClass: 349 K = CXCursor_InitListExpr; 350 break; 351 352 case Stmt::AddrLabelExprClass: 353 K = CXCursor_AddrLabelExpr; 354 break; 355 356 case Stmt::StmtExprClass: 357 K = CXCursor_StmtExpr; 358 break; 359 360 case Stmt::GenericSelectionExprClass: 361 K = CXCursor_GenericSelectionExpr; 362 break; 363 364 case Stmt::GNUNullExprClass: 365 K = CXCursor_GNUNullExpr; 366 break; 367 368 case Stmt::CXXStaticCastExprClass: 369 K = CXCursor_CXXStaticCastExpr; 370 break; 371 372 case Stmt::CXXDynamicCastExprClass: 373 K = CXCursor_CXXDynamicCastExpr; 374 break; 375 376 case Stmt::CXXReinterpretCastExprClass: 377 K = CXCursor_CXXReinterpretCastExpr; 378 break; 379 380 case Stmt::CXXConstCastExprClass: 381 K = CXCursor_CXXConstCastExpr; 382 break; 383 384 case Stmt::CXXFunctionalCastExprClass: 385 K = CXCursor_CXXFunctionalCastExpr; 386 break; 387 388 case Stmt::CXXTypeidExprClass: 389 K = CXCursor_CXXTypeidExpr; 390 break; 391 392 case Stmt::CXXBoolLiteralExprClass: 393 K = CXCursor_CXXBoolLiteralExpr; 394 break; 395 396 case Stmt::CXXNullPtrLiteralExprClass: 397 K = CXCursor_CXXNullPtrLiteralExpr; 398 break; 399 400 case Stmt::CXXThisExprClass: 401 K = CXCursor_CXXThisExpr; 402 break; 403 404 case Stmt::CXXThrowExprClass: 405 K = CXCursor_CXXThrowExpr; 406 break; 407 408 case Stmt::CXXNewExprClass: 409 K = CXCursor_CXXNewExpr; 410 break; 411 412 case Stmt::CXXDeleteExprClass: 413 K = CXCursor_CXXDeleteExpr; 414 break; 415 416 case Stmt::ObjCStringLiteralClass: 417 K = CXCursor_ObjCStringLiteral; 418 break; 419 420 case Stmt::ObjCEncodeExprClass: 421 K = CXCursor_ObjCEncodeExpr; 422 break; 423 424 case Stmt::ObjCSelectorExprClass: 425 K = CXCursor_ObjCSelectorExpr; 426 break; 427 428 case Stmt::ObjCProtocolExprClass: 429 K = CXCursor_ObjCProtocolExpr; 430 break; 431 432 case Stmt::ObjCBoolLiteralExprClass: 433 K = CXCursor_ObjCBoolLiteralExpr; 434 break; 435 436 case Stmt::ObjCBridgedCastExprClass: 437 K = CXCursor_ObjCBridgedCastExpr; 438 break; 439 440 case Stmt::BlockExprClass: 441 K = CXCursor_BlockExpr; 442 break; 443 444 case Stmt::PackExpansionExprClass: 445 K = CXCursor_PackExpansionExpr; 446 break; 447 448 case Stmt::SizeOfPackExprClass: 449 K = CXCursor_SizeOfPackExpr; 450 break; 451 452 case Stmt::DeclRefExprClass: 453 if (const ImplicitParamDecl *IPD = 454 dyn_cast_or_null<ImplicitParamDecl>(cast<DeclRefExpr>(S)->getDecl())) { 455 if (const ObjCMethodDecl *MD = 456 dyn_cast<ObjCMethodDecl>(IPD->getDeclContext())) { 457 if (MD->getSelfDecl() == IPD) { 458 K = CXCursor_ObjCSelfExpr; 459 break; 460 } 461 } 462 } 463 464 K = CXCursor_DeclRefExpr; 465 break; 466 467 case Stmt::DependentScopeDeclRefExprClass: 468 case Stmt::SubstNonTypeTemplateParmExprClass: 469 case Stmt::SubstNonTypeTemplateParmPackExprClass: 470 case Stmt::FunctionParmPackExprClass: 471 case Stmt::UnresolvedLookupExprClass: 472 K = CXCursor_DeclRefExpr; 473 break; 474 475 case Stmt::CXXDependentScopeMemberExprClass: 476 case Stmt::CXXPseudoDestructorExprClass: 477 case Stmt::MemberExprClass: 478 case Stmt::MSPropertyRefExprClass: 479 case Stmt::ObjCIsaExprClass: 480 case Stmt::ObjCIvarRefExprClass: 481 case Stmt::ObjCPropertyRefExprClass: 482 case Stmt::UnresolvedMemberExprClass: 483 K = CXCursor_MemberRefExpr; 484 break; 485 486 case Stmt::CallExprClass: 487 case Stmt::CXXOperatorCallExprClass: 488 case Stmt::CXXMemberCallExprClass: 489 case Stmt::CUDAKernelCallExprClass: 490 case Stmt::CXXConstructExprClass: 491 case Stmt::CXXTemporaryObjectExprClass: 492 case Stmt::CXXUnresolvedConstructExprClass: 493 case Stmt::UserDefinedLiteralClass: 494 K = CXCursor_CallExpr; 495 break; 496 497 case Stmt::LambdaExprClass: 498 K = CXCursor_LambdaExpr; 499 break; 500 501 case Stmt::ObjCMessageExprClass: { 502 K = CXCursor_ObjCMessageExpr; 503 int SelectorIdIndex = -1; 504 // Check if cursor points to a selector id. 505 if (RegionOfInterest.isValid() && 506 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) { 507 SmallVector<SourceLocation, 16> SelLocs; 508 cast<ObjCMessageExpr>(S)->getSelectorLocs(SelLocs); 509 SmallVectorImpl<SourceLocation>::iterator 510 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin()); 511 if (I != SelLocs.end()) 512 SelectorIdIndex = I - SelLocs.begin(); 513 } 514 CXCursor C = { K, 0, { Parent, S, TU } }; 515 return getSelectorIdentifierCursor(SelectorIdIndex, C); 516 } 517 518 case Stmt::MSDependentExistsStmtClass: 519 K = CXCursor_UnexposedStmt; 520 break; 521 case Stmt::OMPParallelDirectiveClass: 522 K = CXCursor_OMPParallelDirective; 523 break; 524 case Stmt::OMPSimdDirectiveClass: 525 K = CXCursor_OMPSimdDirective; 526 break; 527 case Stmt::OMPForDirectiveClass: 528 K = CXCursor_OMPForDirective; 529 break; 530 case Stmt::OMPForSimdDirectiveClass: 531 K = CXCursor_OMPForSimdDirective; 532 break; 533 case Stmt::OMPSectionsDirectiveClass: 534 K = CXCursor_OMPSectionsDirective; 535 break; 536 case Stmt::OMPSectionDirectiveClass: 537 K = CXCursor_OMPSectionDirective; 538 break; 539 case Stmt::OMPSingleDirectiveClass: 540 K = CXCursor_OMPSingleDirective; 541 break; 542 case Stmt::OMPMasterDirectiveClass: 543 K = CXCursor_OMPMasterDirective; 544 break; 545 case Stmt::OMPCriticalDirectiveClass: 546 K = CXCursor_OMPCriticalDirective; 547 break; 548 case Stmt::OMPParallelForDirectiveClass: 549 K = CXCursor_OMPParallelForDirective; 550 break; 551 case Stmt::OMPParallelSectionsDirectiveClass: 552 K = CXCursor_OMPParallelSectionsDirective; 553 break; 554 case Stmt::OMPTaskDirectiveClass: 555 K = CXCursor_OMPTaskDirective; 556 break; 557 case Stmt::OMPTaskyieldDirectiveClass: 558 K = CXCursor_OMPTaskyieldDirective; 559 break; 560 case Stmt::OMPBarrierDirectiveClass: 561 K = CXCursor_OMPBarrierDirective; 562 break; 563 case Stmt::OMPTaskwaitDirectiveClass: 564 K = CXCursor_OMPTaskwaitDirective; 565 break; 566 case Stmt::OMPFlushDirectiveClass: 567 K = CXCursor_OMPFlushDirective; 568 break; 569 case Stmt::OMPOrderedDirectiveClass: 570 K = CXCursor_OMPOrderedDirective; 571 break; 572 case Stmt::OMPAtomicDirectiveClass: 573 K = CXCursor_OMPAtomicDirective; 574 break; 575 } 576 577 CXCursor C = { K, 0, { Parent, S, TU } }; 578 return C; 579 } 580 581 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super, 582 SourceLocation Loc, 583 CXTranslationUnit TU) { 584 assert(Super && TU && "Invalid arguments!"); 585 void *RawLoc = Loc.getPtrEncoding(); 586 CXCursor C = { CXCursor_ObjCSuperClassRef, 0, { Super, RawLoc, TU } }; 587 return C; 588 } 589 590 std::pair<const ObjCInterfaceDecl *, SourceLocation> 591 cxcursor::getCursorObjCSuperClassRef(CXCursor C) { 592 assert(C.kind == CXCursor_ObjCSuperClassRef); 593 return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]), 594 SourceLocation::getFromPtrEncoding(C.data[1])); 595 } 596 597 CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto, 598 SourceLocation Loc, 599 CXTranslationUnit TU) { 600 assert(Proto && TU && "Invalid arguments!"); 601 void *RawLoc = Loc.getPtrEncoding(); 602 CXCursor C = { CXCursor_ObjCProtocolRef, 0, { Proto, RawLoc, TU } }; 603 return C; 604 } 605 606 std::pair<const ObjCProtocolDecl *, SourceLocation> 607 cxcursor::getCursorObjCProtocolRef(CXCursor C) { 608 assert(C.kind == CXCursor_ObjCProtocolRef); 609 return std::make_pair(static_cast<const ObjCProtocolDecl *>(C.data[0]), 610 SourceLocation::getFromPtrEncoding(C.data[1])); 611 } 612 613 CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class, 614 SourceLocation Loc, 615 CXTranslationUnit TU) { 616 // 'Class' can be null for invalid code. 617 if (!Class) 618 return MakeCXCursorInvalid(CXCursor_InvalidCode); 619 assert(TU && "Invalid arguments!"); 620 void *RawLoc = Loc.getPtrEncoding(); 621 CXCursor C = { CXCursor_ObjCClassRef, 0, { Class, RawLoc, TU } }; 622 return C; 623 } 624 625 std::pair<const ObjCInterfaceDecl *, SourceLocation> 626 cxcursor::getCursorObjCClassRef(CXCursor C) { 627 assert(C.kind == CXCursor_ObjCClassRef); 628 return std::make_pair(static_cast<const ObjCInterfaceDecl *>(C.data[0]), 629 SourceLocation::getFromPtrEncoding(C.data[1])); 630 } 631 632 CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc, 633 CXTranslationUnit TU) { 634 assert(Type && TU && "Invalid arguments!"); 635 void *RawLoc = Loc.getPtrEncoding(); 636 CXCursor C = { CXCursor_TypeRef, 0, { Type, RawLoc, TU } }; 637 return C; 638 } 639 640 std::pair<const TypeDecl *, SourceLocation> 641 cxcursor::getCursorTypeRef(CXCursor C) { 642 assert(C.kind == CXCursor_TypeRef); 643 return std::make_pair(static_cast<const TypeDecl *>(C.data[0]), 644 SourceLocation::getFromPtrEncoding(C.data[1])); 645 } 646 647 CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template, 648 SourceLocation Loc, 649 CXTranslationUnit TU) { 650 assert(Template && TU && "Invalid arguments!"); 651 void *RawLoc = Loc.getPtrEncoding(); 652 CXCursor C = { CXCursor_TemplateRef, 0, { Template, RawLoc, TU } }; 653 return C; 654 } 655 656 std::pair<const TemplateDecl *, SourceLocation> 657 cxcursor::getCursorTemplateRef(CXCursor C) { 658 assert(C.kind == CXCursor_TemplateRef); 659 return std::make_pair(static_cast<const TemplateDecl *>(C.data[0]), 660 SourceLocation::getFromPtrEncoding(C.data[1])); 661 } 662 663 CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS, 664 SourceLocation Loc, 665 CXTranslationUnit TU) { 666 667 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU && 668 "Invalid arguments!"); 669 void *RawLoc = Loc.getPtrEncoding(); 670 CXCursor C = { CXCursor_NamespaceRef, 0, { NS, RawLoc, TU } }; 671 return C; 672 } 673 674 std::pair<const NamedDecl *, SourceLocation> 675 cxcursor::getCursorNamespaceRef(CXCursor C) { 676 assert(C.kind == CXCursor_NamespaceRef); 677 return std::make_pair(static_cast<const NamedDecl *>(C.data[0]), 678 SourceLocation::getFromPtrEncoding(C.data[1])); 679 } 680 681 CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc, 682 CXTranslationUnit TU) { 683 684 assert(Var && TU && "Invalid arguments!"); 685 void *RawLoc = Loc.getPtrEncoding(); 686 CXCursor C = { CXCursor_VariableRef, 0, { Var, RawLoc, TU } }; 687 return C; 688 } 689 690 std::pair<const VarDecl *, SourceLocation> 691 cxcursor::getCursorVariableRef(CXCursor C) { 692 assert(C.kind == CXCursor_VariableRef); 693 return std::make_pair(static_cast<const VarDecl *>(C.data[0]), 694 SourceLocation::getFromPtrEncoding(C.data[1])); 695 } 696 697 CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field, SourceLocation Loc, 698 CXTranslationUnit TU) { 699 700 assert(Field && TU && "Invalid arguments!"); 701 void *RawLoc = Loc.getPtrEncoding(); 702 CXCursor C = { CXCursor_MemberRef, 0, { Field, RawLoc, TU } }; 703 return C; 704 } 705 706 std::pair<const FieldDecl *, SourceLocation> 707 cxcursor::getCursorMemberRef(CXCursor C) { 708 assert(C.kind == CXCursor_MemberRef); 709 return std::make_pair(static_cast<const FieldDecl *>(C.data[0]), 710 SourceLocation::getFromPtrEncoding(C.data[1])); 711 } 712 713 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B, 714 CXTranslationUnit TU){ 715 CXCursor C = { CXCursor_CXXBaseSpecifier, 0, { B, nullptr, TU } }; 716 return C; 717 } 718 719 const CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) { 720 assert(C.kind == CXCursor_CXXBaseSpecifier); 721 return static_cast<const CXXBaseSpecifier*>(C.data[0]); 722 } 723 724 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range, 725 CXTranslationUnit TU) { 726 CXCursor C = { CXCursor_PreprocessingDirective, 0, 727 { Range.getBegin().getPtrEncoding(), 728 Range.getEnd().getPtrEncoding(), 729 TU } 730 }; 731 return C; 732 } 733 734 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) { 735 assert(C.kind == CXCursor_PreprocessingDirective); 736 SourceRange Range(SourceLocation::getFromPtrEncoding(C.data[0]), 737 SourceLocation::getFromPtrEncoding(C.data[1])); 738 ASTUnit *TU = getCursorASTUnit(C); 739 return TU->mapRangeFromPreamble(Range); 740 } 741 742 CXCursor cxcursor::MakeMacroDefinitionCursor(const MacroDefinition *MI, 743 CXTranslationUnit TU) { 744 CXCursor C = { CXCursor_MacroDefinition, 0, { MI, nullptr, TU } }; 745 return C; 746 } 747 748 const MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) { 749 assert(C.kind == CXCursor_MacroDefinition); 750 return static_cast<const MacroDefinition *>(C.data[0]); 751 } 752 753 CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI, 754 CXTranslationUnit TU) { 755 CXCursor C = { CXCursor_MacroExpansion, 0, { MI, nullptr, TU } }; 756 return C; 757 } 758 759 CXCursor cxcursor::MakeMacroExpansionCursor(MacroDefinition *MI, 760 SourceLocation Loc, 761 CXTranslationUnit TU) { 762 assert(Loc.isValid()); 763 CXCursor C = { CXCursor_MacroExpansion, 0, { MI, Loc.getPtrEncoding(), TU } }; 764 return C; 765 } 766 767 const IdentifierInfo *cxcursor::MacroExpansionCursor::getName() const { 768 if (isPseudo()) 769 return getAsMacroDefinition()->getName(); 770 return getAsMacroExpansion()->getName(); 771 } 772 const MacroDefinition *cxcursor::MacroExpansionCursor::getDefinition() const { 773 if (isPseudo()) 774 return getAsMacroDefinition(); 775 return getAsMacroExpansion()->getDefinition(); 776 } 777 SourceRange cxcursor::MacroExpansionCursor::getSourceRange() const { 778 if (isPseudo()) 779 return getPseudoLoc(); 780 return getAsMacroExpansion()->getSourceRange(); 781 } 782 783 CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID, 784 CXTranslationUnit TU) { 785 CXCursor C = { CXCursor_InclusionDirective, 0, { ID, nullptr, TU } }; 786 return C; 787 } 788 789 const InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) { 790 assert(C.kind == CXCursor_InclusionDirective); 791 return static_cast<const InclusionDirective *>(C.data[0]); 792 } 793 794 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc, 795 CXTranslationUnit TU) { 796 797 assert(Label && TU && "Invalid arguments!"); 798 void *RawLoc = Loc.getPtrEncoding(); 799 CXCursor C = { CXCursor_LabelRef, 0, { Label, RawLoc, TU } }; 800 return C; 801 } 802 803 std::pair<const LabelStmt *, SourceLocation> 804 cxcursor::getCursorLabelRef(CXCursor C) { 805 assert(C.kind == CXCursor_LabelRef); 806 return std::make_pair(static_cast<const LabelStmt *>(C.data[0]), 807 SourceLocation::getFromPtrEncoding(C.data[1])); 808 } 809 810 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const OverloadExpr *E, 811 CXTranslationUnit TU) { 812 assert(E && TU && "Invalid arguments!"); 813 OverloadedDeclRefStorage Storage(E); 814 void *RawLoc = E->getNameLoc().getPtrEncoding(); 815 CXCursor C = { 816 CXCursor_OverloadedDeclRef, 0, 817 { Storage.getOpaqueValue(), RawLoc, TU } 818 }; 819 return C; 820 } 821 822 CXCursor cxcursor::MakeCursorOverloadedDeclRef(const Decl *D, 823 SourceLocation Loc, 824 CXTranslationUnit TU) { 825 assert(D && TU && "Invalid arguments!"); 826 void *RawLoc = Loc.getPtrEncoding(); 827 OverloadedDeclRefStorage Storage(D); 828 CXCursor C = { 829 CXCursor_OverloadedDeclRef, 0, 830 { Storage.getOpaqueValue(), RawLoc, TU } 831 }; 832 return C; 833 } 834 835 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name, 836 SourceLocation Loc, 837 CXTranslationUnit TU) { 838 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!"); 839 void *RawLoc = Loc.getPtrEncoding(); 840 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate()); 841 CXCursor C = { 842 CXCursor_OverloadedDeclRef, 0, 843 { Storage.getOpaqueValue(), RawLoc, TU } 844 }; 845 return C; 846 } 847 848 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation> 849 cxcursor::getCursorOverloadedDeclRef(CXCursor C) { 850 assert(C.kind == CXCursor_OverloadedDeclRef); 851 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue( 852 const_cast<void *>(C.data[0])), 853 SourceLocation::getFromPtrEncoding(C.data[1])); 854 } 855 856 const Decl *cxcursor::getCursorDecl(CXCursor Cursor) { 857 return static_cast<const Decl *>(Cursor.data[0]); 858 } 859 860 const Expr *cxcursor::getCursorExpr(CXCursor Cursor) { 861 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor)); 862 } 863 864 const Stmt *cxcursor::getCursorStmt(CXCursor Cursor) { 865 if (Cursor.kind == CXCursor_ObjCSuperClassRef || 866 Cursor.kind == CXCursor_ObjCProtocolRef || 867 Cursor.kind == CXCursor_ObjCClassRef) 868 return nullptr; 869 870 return static_cast<const Stmt *>(Cursor.data[1]); 871 } 872 873 const Attr *cxcursor::getCursorAttr(CXCursor Cursor) { 874 return static_cast<const Attr *>(Cursor.data[1]); 875 } 876 877 const Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) { 878 return static_cast<const Decl *>(Cursor.data[0]); 879 } 880 881 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) { 882 return getCursorASTUnit(Cursor)->getASTContext(); 883 } 884 885 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) { 886 CXTranslationUnit TU = getCursorTU(Cursor); 887 if (!TU) 888 return nullptr; 889 return cxtu::getASTUnit(TU); 890 } 891 892 CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) { 893 return static_cast<CXTranslationUnit>(const_cast<void*>(Cursor.data[2])); 894 } 895 896 void cxcursor::getOverriddenCursors(CXCursor cursor, 897 SmallVectorImpl<CXCursor> &overridden) { 898 assert(clang_isDeclaration(cursor.kind)); 899 const NamedDecl *D = dyn_cast_or_null<NamedDecl>(getCursorDecl(cursor)); 900 if (!D) 901 return; 902 903 CXTranslationUnit TU = getCursorTU(cursor); 904 SmallVector<const NamedDecl *, 8> OverDecls; 905 D->getASTContext().getOverriddenMethods(D, OverDecls); 906 907 for (SmallVectorImpl<const NamedDecl *>::iterator 908 I = OverDecls.begin(), E = OverDecls.end(); I != E; ++I) { 909 overridden.push_back(MakeCXCursor(*I, TU)); 910 } 911 } 912 913 std::pair<int, SourceLocation> 914 cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) { 915 if (cursor.kind == CXCursor_ObjCMessageExpr) { 916 if (cursor.xdata != -1) 917 return std::make_pair(cursor.xdata, 918 cast<ObjCMessageExpr>(getCursorExpr(cursor)) 919 ->getSelectorLoc(cursor.xdata)); 920 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl || 921 cursor.kind == CXCursor_ObjCInstanceMethodDecl) { 922 if (cursor.xdata != -1) 923 return std::make_pair(cursor.xdata, 924 cast<ObjCMethodDecl>(getCursorDecl(cursor)) 925 ->getSelectorLoc(cursor.xdata)); 926 } 927 928 return std::make_pair(-1, SourceLocation()); 929 } 930 931 CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) { 932 CXCursor newCursor = cursor; 933 934 if (cursor.kind == CXCursor_ObjCMessageExpr) { 935 if (SelIdx == -1 || 936 unsigned(SelIdx) >= cast<ObjCMessageExpr>(getCursorExpr(cursor)) 937 ->getNumSelectorLocs()) 938 newCursor.xdata = -1; 939 else 940 newCursor.xdata = SelIdx; 941 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl || 942 cursor.kind == CXCursor_ObjCInstanceMethodDecl) { 943 if (SelIdx == -1 || 944 unsigned(SelIdx) >= cast<ObjCMethodDecl>(getCursorDecl(cursor)) 945 ->getNumSelectorLocs()) 946 newCursor.xdata = -1; 947 else 948 newCursor.xdata = SelIdx; 949 } 950 951 return newCursor; 952 } 953 954 CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) { 955 if (cursor.kind != CXCursor_CallExpr) 956 return cursor; 957 958 if (cursor.xdata == 0) 959 return cursor; 960 961 const Expr *E = getCursorExpr(cursor); 962 TypeSourceInfo *Type = nullptr; 963 if (const CXXUnresolvedConstructExpr * 964 UnCtor = dyn_cast<CXXUnresolvedConstructExpr>(E)) { 965 Type = UnCtor->getTypeSourceInfo(); 966 } else if (const CXXTemporaryObjectExpr *Tmp = 967 dyn_cast<CXXTemporaryObjectExpr>(E)){ 968 Type = Tmp->getTypeSourceInfo(); 969 } 970 971 if (!Type) 972 return cursor; 973 974 CXTranslationUnit TU = getCursorTU(cursor); 975 QualType Ty = Type->getType(); 976 TypeLoc TL = Type->getTypeLoc(); 977 SourceLocation Loc = TL.getBeginLoc(); 978 979 if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) { 980 Ty = ElabT->getNamedType(); 981 ElaboratedTypeLoc ElabTL = TL.castAs<ElaboratedTypeLoc>(); 982 Loc = ElabTL.getNamedTypeLoc().getBeginLoc(); 983 } 984 985 if (const TypedefType *Typedef = Ty->getAs<TypedefType>()) 986 return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU); 987 if (const TagType *Tag = Ty->getAs<TagType>()) 988 return MakeCursorTypeRef(Tag->getDecl(), Loc, TU); 989 if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>()) 990 return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU); 991 992 return cursor; 993 } 994 995 bool cxcursor::operator==(CXCursor X, CXCursor Y) { 996 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] && 997 X.data[2] == Y.data[2]; 998 } 999 1000 // FIXME: Remove once we can model DeclGroups and their appropriate ranges 1001 // properly in the ASTs. 1002 bool cxcursor::isFirstInDeclGroup(CXCursor C) { 1003 assert(clang_isDeclaration(C.kind)); 1004 return ((uintptr_t) (C.data[1])) != 0; 1005 } 1006 1007 //===----------------------------------------------------------------------===// 1008 // libclang CXCursor APIs 1009 //===----------------------------------------------------------------------===// 1010 1011 extern "C" { 1012 1013 int clang_Cursor_isNull(CXCursor cursor) { 1014 return clang_equalCursors(cursor, clang_getNullCursor()); 1015 } 1016 1017 CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) { 1018 return getCursorTU(cursor); 1019 } 1020 1021 int clang_Cursor_getNumArguments(CXCursor C) { 1022 if (clang_isDeclaration(C.kind)) { 1023 const Decl *D = cxcursor::getCursorDecl(C); 1024 if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) 1025 return MD->param_size(); 1026 if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) 1027 return FD->param_size(); 1028 } 1029 1030 if (clang_isExpression(C.kind)) { 1031 const Expr *E = cxcursor::getCursorExpr(C); 1032 if (const CallExpr *CE = dyn_cast<CallExpr>(E)) { 1033 return CE->getNumArgs(); 1034 } 1035 } 1036 1037 return -1; 1038 } 1039 1040 CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i) { 1041 if (clang_isDeclaration(C.kind)) { 1042 const Decl *D = cxcursor::getCursorDecl(C); 1043 if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) { 1044 if (i < MD->param_size()) 1045 return cxcursor::MakeCXCursor(MD->parameters()[i], 1046 cxcursor::getCursorTU(C)); 1047 } else if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { 1048 if (i < FD->param_size()) 1049 return cxcursor::MakeCXCursor(FD->parameters()[i], 1050 cxcursor::getCursorTU(C)); 1051 } 1052 } 1053 1054 if (clang_isExpression(C.kind)) { 1055 const Expr *E = cxcursor::getCursorExpr(C); 1056 if (const CallExpr *CE = dyn_cast<CallExpr>(E)) { 1057 if (i < CE->getNumArgs()) { 1058 return cxcursor::MakeCXCursor(CE->getArg(i), 1059 getCursorDecl(C), 1060 cxcursor::getCursorTU(C)); 1061 } 1062 } 1063 } 1064 1065 return clang_getNullCursor(); 1066 } 1067 1068 } // end: extern "C" 1069 1070 //===----------------------------------------------------------------------===// 1071 // CXCursorSet. 1072 //===----------------------------------------------------------------------===// 1073 1074 typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl; 1075 1076 static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) { 1077 return (CXCursorSet) setImpl; 1078 } 1079 static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) { 1080 return (CXCursorSet_Impl*) set; 1081 } 1082 namespace llvm { 1083 template<> struct DenseMapInfo<CXCursor> { 1084 public: 1085 static inline CXCursor getEmptyKey() { 1086 return MakeCXCursorInvalid(CXCursor_InvalidFile); 1087 } 1088 static inline CXCursor getTombstoneKey() { 1089 return MakeCXCursorInvalid(CXCursor_NoDeclFound); 1090 } 1091 static inline unsigned getHashValue(const CXCursor &cursor) { 1092 return llvm::DenseMapInfo<std::pair<const void *, const void *> > 1093 ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1])); 1094 } 1095 static inline bool isEqual(const CXCursor &x, const CXCursor &y) { 1096 return x.kind == y.kind && 1097 x.data[0] == y.data[0] && 1098 x.data[1] == y.data[1]; 1099 } 1100 }; 1101 } 1102 1103 extern "C" { 1104 CXCursorSet clang_createCXCursorSet() { 1105 return packCXCursorSet(new CXCursorSet_Impl()); 1106 } 1107 1108 void clang_disposeCXCursorSet(CXCursorSet set) { 1109 delete unpackCXCursorSet(set); 1110 } 1111 1112 unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) { 1113 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 1114 if (!setImpl) 1115 return 0; 1116 return setImpl->find(cursor) != setImpl->end(); 1117 } 1118 1119 unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) { 1120 // Do not insert invalid cursors into the set. 1121 if (cursor.kind >= CXCursor_FirstInvalid && 1122 cursor.kind <= CXCursor_LastInvalid) 1123 return 1; 1124 1125 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 1126 if (!setImpl) 1127 return 1; 1128 unsigned &entry = (*setImpl)[cursor]; 1129 unsigned flag = entry == 0 ? 1 : 0; 1130 entry = 1; 1131 return flag; 1132 } 1133 1134 CXCompletionString clang_getCursorCompletionString(CXCursor cursor) { 1135 enum CXCursorKind kind = clang_getCursorKind(cursor); 1136 if (clang_isDeclaration(kind)) { 1137 const Decl *decl = getCursorDecl(cursor); 1138 if (const NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) { 1139 ASTUnit *unit = getCursorASTUnit(cursor); 1140 CodeCompletionResult Result(namedDecl, CCP_Declaration); 1141 CodeCompletionString *String 1142 = Result.CreateCodeCompletionString(unit->getASTContext(), 1143 unit->getPreprocessor(), 1144 unit->getCodeCompletionTUInfo().getAllocator(), 1145 unit->getCodeCompletionTUInfo(), 1146 true); 1147 return String; 1148 } 1149 } 1150 else if (kind == CXCursor_MacroDefinition) { 1151 const MacroDefinition *definition = getCursorMacroDefinition(cursor); 1152 const IdentifierInfo *MacroInfo = definition->getName(); 1153 ASTUnit *unit = getCursorASTUnit(cursor); 1154 CodeCompletionResult Result(MacroInfo); 1155 CodeCompletionString *String 1156 = Result.CreateCodeCompletionString(unit->getASTContext(), 1157 unit->getPreprocessor(), 1158 unit->getCodeCompletionTUInfo().getAllocator(), 1159 unit->getCodeCompletionTUInfo(), 1160 false); 1161 return String; 1162 } 1163 return nullptr; 1164 } 1165 } // end: extern C. 1166 1167 namespace { 1168 struct OverridenCursorsPool { 1169 typedef SmallVector<CXCursor, 2> CursorVec; 1170 std::vector<CursorVec*> AllCursors; 1171 std::vector<CursorVec*> AvailableCursors; 1172 1173 ~OverridenCursorsPool() { 1174 for (std::vector<CursorVec*>::iterator I = AllCursors.begin(), 1175 E = AllCursors.end(); I != E; ++I) { 1176 delete *I; 1177 } 1178 } 1179 }; 1180 } 1181 1182 void *cxcursor::createOverridenCXCursorsPool() { 1183 return new OverridenCursorsPool(); 1184 } 1185 1186 void cxcursor::disposeOverridenCXCursorsPool(void *pool) { 1187 delete static_cast<OverridenCursorsPool*>(pool); 1188 } 1189 1190 extern "C" { 1191 void clang_getOverriddenCursors(CXCursor cursor, 1192 CXCursor **overridden, 1193 unsigned *num_overridden) { 1194 if (overridden) 1195 *overridden = nullptr; 1196 if (num_overridden) 1197 *num_overridden = 0; 1198 1199 CXTranslationUnit TU = cxcursor::getCursorTU(cursor); 1200 1201 if (!overridden || !num_overridden || !TU) 1202 return; 1203 1204 if (!clang_isDeclaration(cursor.kind)) 1205 return; 1206 1207 OverridenCursorsPool &pool = 1208 *static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool); 1209 1210 OverridenCursorsPool::CursorVec *Vec = nullptr; 1211 1212 if (!pool.AvailableCursors.empty()) { 1213 Vec = pool.AvailableCursors.back(); 1214 pool.AvailableCursors.pop_back(); 1215 } 1216 else { 1217 Vec = new OverridenCursorsPool::CursorVec(); 1218 pool.AllCursors.push_back(Vec); 1219 } 1220 1221 // Clear out the vector, but don't free the memory contents. This 1222 // reduces malloc() traffic. 1223 Vec->clear(); 1224 1225 // Use the first entry to contain a back reference to the vector. 1226 // This is a complete hack. 1227 CXCursor backRefCursor = MakeCXCursorInvalid(CXCursor_InvalidFile, TU); 1228 backRefCursor.data[0] = Vec; 1229 assert(cxcursor::getCursorTU(backRefCursor) == TU); 1230 Vec->push_back(backRefCursor); 1231 1232 // Get the overriden cursors. 1233 cxcursor::getOverriddenCursors(cursor, *Vec); 1234 1235 // Did we get any overriden cursors? If not, return Vec to the pool 1236 // of available cursor vectors. 1237 if (Vec->size() == 1) { 1238 pool.AvailableCursors.push_back(Vec); 1239 return; 1240 } 1241 1242 // Now tell the caller about the overriden cursors. 1243 assert(Vec->size() > 1); 1244 *overridden = &((*Vec)[1]); 1245 *num_overridden = Vec->size() - 1; 1246 } 1247 1248 void clang_disposeOverriddenCursors(CXCursor *overridden) { 1249 if (!overridden) 1250 return; 1251 1252 // Use pointer arithmetic to get back the first faux entry 1253 // which has a back-reference to the TU and the vector. 1254 --overridden; 1255 OverridenCursorsPool::CursorVec *Vec = 1256 static_cast<OverridenCursorsPool::CursorVec *>( 1257 const_cast<void *>(overridden->data[0])); 1258 CXTranslationUnit TU = getCursorTU(*overridden); 1259 1260 assert(Vec && TU); 1261 1262 OverridenCursorsPool &pool = 1263 *static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool); 1264 1265 pool.AvailableCursors.push_back(Vec); 1266 } 1267 1268 int clang_Cursor_isDynamicCall(CXCursor C) { 1269 const Expr *E = nullptr; 1270 if (clang_isExpression(C.kind)) 1271 E = getCursorExpr(C); 1272 if (!E) 1273 return 0; 1274 1275 if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E)) 1276 return MsgE->getReceiverKind() == ObjCMessageExpr::Instance; 1277 1278 const MemberExpr *ME = nullptr; 1279 if (isa<MemberExpr>(E)) 1280 ME = cast<MemberExpr>(E); 1281 else if (const CallExpr *CE = dyn_cast<CallExpr>(E)) 1282 ME = dyn_cast_or_null<MemberExpr>(CE->getCallee()); 1283 1284 if (ME) { 1285 if (const CXXMethodDecl * 1286 MD = dyn_cast_or_null<CXXMethodDecl>(ME->getMemberDecl())) 1287 return MD->isVirtual() && !ME->hasQualifier(); 1288 } 1289 1290 return 0; 1291 } 1292 1293 CXType clang_Cursor_getReceiverType(CXCursor C) { 1294 CXTranslationUnit TU = cxcursor::getCursorTU(C); 1295 const Expr *E = nullptr; 1296 if (clang_isExpression(C.kind)) 1297 E = getCursorExpr(C); 1298 1299 if (const ObjCMessageExpr *MsgE = dyn_cast_or_null<ObjCMessageExpr>(E)) 1300 return cxtype::MakeCXType(MsgE->getReceiverType(), TU); 1301 1302 return cxtype::MakeCXType(QualType(), TU); 1303 } 1304 1305 } // end: extern "C" 1306