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