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 "clang/Frontend/ASTUnit.h" 20 #include "clang/AST/Decl.h" 21 #include "clang/AST/DeclCXX.h" 22 #include "clang/AST/DeclObjC.h" 23 #include "clang/AST/DeclTemplate.h" 24 #include "clang/AST/Expr.h" 25 #include "clang/AST/ExprCXX.h" 26 #include "clang/AST/ExprObjC.h" 27 #include "clang-c/Index.h" 28 #include "llvm/Support/ErrorHandling.h" 29 30 using namespace clang; 31 using namespace cxcursor; 32 33 CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K) { 34 assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid); 35 CXCursor C = { K, 0, { 0, 0, 0 } }; 36 return C; 37 } 38 39 static CXCursorKind GetCursorKind(const Attr *A) { 40 assert(A && "Invalid arguments!"); 41 switch (A->getKind()) { 42 default: break; 43 case attr::IBAction: return CXCursor_IBActionAttr; 44 case attr::IBOutlet: return CXCursor_IBOutletAttr; 45 case attr::IBOutletCollection: return CXCursor_IBOutletCollectionAttr; 46 case attr::Final: return CXCursor_CXXFinalAttr; 47 case attr::Override: return CXCursor_CXXOverrideAttr; 48 case attr::Annotate: return CXCursor_AnnotateAttr; 49 case attr::AsmLabel: return CXCursor_AsmLabelAttr; 50 } 51 52 return CXCursor_UnexposedAttr; 53 } 54 55 CXCursor cxcursor::MakeCXCursor(const Attr *A, Decl *Parent, 56 CXTranslationUnit TU) { 57 assert(A && Parent && TU && "Invalid arguments!"); 58 CXCursor C = { GetCursorKind(A), 0, { Parent, (void*)A, TU } }; 59 return C; 60 } 61 62 CXCursor cxcursor::MakeCXCursor(Decl *D, CXTranslationUnit TU, 63 SourceRange RegionOfInterest, 64 bool FirstInDeclGroup) { 65 assert(D && TU && "Invalid arguments!"); 66 67 CXCursorKind K = getCursorKindForDecl(D); 68 69 if (K == CXCursor_ObjCClassMethodDecl || 70 K == CXCursor_ObjCInstanceMethodDecl) { 71 int SelectorIdIndex = -1; 72 // Check if cursor points to a selector id. 73 if (RegionOfInterest.isValid() && 74 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) { 75 SmallVector<SourceLocation, 16> SelLocs; 76 cast<ObjCMethodDecl>(D)->getSelectorLocs(SelLocs); 77 SmallVector<SourceLocation, 16>::iterator 78 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin()); 79 if (I != SelLocs.end()) 80 SelectorIdIndex = I - SelLocs.begin(); 81 } 82 CXCursor C = { K, SelectorIdIndex, 83 { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }}; 84 return C; 85 } 86 87 CXCursor C = { K, 0, { D, (void*)(intptr_t) (FirstInDeclGroup ? 1 : 0), TU }}; 88 return C; 89 } 90 91 CXCursor cxcursor::MakeCXCursor(Stmt *S, Decl *Parent, CXTranslationUnit TU, 92 SourceRange RegionOfInterest) { 93 assert(S && TU && "Invalid arguments!"); 94 CXCursorKind K = CXCursor_NotImplemented; 95 96 switch (S->getStmtClass()) { 97 case Stmt::NoStmtClass: 98 break; 99 100 case Stmt::CaseStmtClass: 101 K = CXCursor_CaseStmt; 102 break; 103 104 case Stmt::DefaultStmtClass: 105 K = CXCursor_DefaultStmt; 106 break; 107 108 case Stmt::IfStmtClass: 109 K = CXCursor_IfStmt; 110 break; 111 112 case Stmt::SwitchStmtClass: 113 K = CXCursor_SwitchStmt; 114 break; 115 116 case Stmt::WhileStmtClass: 117 K = CXCursor_WhileStmt; 118 break; 119 120 case Stmt::DoStmtClass: 121 K = CXCursor_DoStmt; 122 break; 123 124 case Stmt::ForStmtClass: 125 K = CXCursor_ForStmt; 126 break; 127 128 case Stmt::GotoStmtClass: 129 K = CXCursor_GotoStmt; 130 break; 131 132 case Stmt::IndirectGotoStmtClass: 133 K = CXCursor_IndirectGotoStmt; 134 break; 135 136 case Stmt::ContinueStmtClass: 137 K = CXCursor_ContinueStmt; 138 break; 139 140 case Stmt::BreakStmtClass: 141 K = CXCursor_BreakStmt; 142 break; 143 144 case Stmt::ReturnStmtClass: 145 K = CXCursor_ReturnStmt; 146 break; 147 148 case Stmt::AsmStmtClass: 149 K = CXCursor_AsmStmt; 150 break; 151 152 case Stmt::ObjCAtTryStmtClass: 153 K = CXCursor_ObjCAtTryStmt; 154 break; 155 156 case Stmt::ObjCAtCatchStmtClass: 157 K = CXCursor_ObjCAtCatchStmt; 158 break; 159 160 case Stmt::ObjCAtFinallyStmtClass: 161 K = CXCursor_ObjCAtFinallyStmt; 162 break; 163 164 case Stmt::ObjCAtThrowStmtClass: 165 K = CXCursor_ObjCAtThrowStmt; 166 break; 167 168 case Stmt::ObjCAtSynchronizedStmtClass: 169 K = CXCursor_ObjCAtSynchronizedStmt; 170 break; 171 172 case Stmt::ObjCAutoreleasePoolStmtClass: 173 K = CXCursor_ObjCAutoreleasePoolStmt; 174 break; 175 176 case Stmt::ObjCForCollectionStmtClass: 177 K = CXCursor_ObjCForCollectionStmt; 178 break; 179 180 case Stmt::CXXCatchStmtClass: 181 K = CXCursor_CXXCatchStmt; 182 break; 183 184 case Stmt::CXXTryStmtClass: 185 K = CXCursor_CXXTryStmt; 186 break; 187 188 case Stmt::CXXForRangeStmtClass: 189 K = CXCursor_CXXForRangeStmt; 190 break; 191 192 case Stmt::SEHTryStmtClass: 193 K = CXCursor_SEHTryStmt; 194 break; 195 196 case Stmt::SEHExceptStmtClass: 197 K = CXCursor_SEHExceptStmt; 198 break; 199 200 case Stmt::SEHFinallyStmtClass: 201 K = CXCursor_SEHFinallyStmt; 202 break; 203 204 case Stmt::ArrayTypeTraitExprClass: 205 case Stmt::AsTypeExprClass: 206 case Stmt::AtomicExprClass: 207 case Stmt::BinaryConditionalOperatorClass: 208 case Stmt::BinaryTypeTraitExprClass: 209 case Stmt::TypeTraitExprClass: 210 case Stmt::CXXBindTemporaryExprClass: 211 case Stmt::CXXDefaultArgExprClass: 212 case Stmt::CXXScalarValueInitExprClass: 213 case Stmt::CXXUuidofExprClass: 214 case Stmt::ChooseExprClass: 215 case Stmt::DesignatedInitExprClass: 216 case Stmt::ExprWithCleanupsClass: 217 case Stmt::ExpressionTraitExprClass: 218 case Stmt::ExtVectorElementExprClass: 219 case Stmt::ImplicitCastExprClass: 220 case Stmt::ImplicitValueInitExprClass: 221 case Stmt::MaterializeTemporaryExprClass: 222 case Stmt::ObjCIndirectCopyRestoreExprClass: 223 case Stmt::OffsetOfExprClass: 224 case Stmt::ParenListExprClass: 225 case Stmt::PredefinedExprClass: 226 case Stmt::ShuffleVectorExprClass: 227 case Stmt::UnaryExprOrTypeTraitExprClass: 228 case Stmt::UnaryTypeTraitExprClass: 229 case Stmt::VAArgExprClass: 230 case Stmt::ObjCArrayLiteralClass: 231 case Stmt::ObjCDictionaryLiteralClass: 232 case Stmt::ObjCNumericLiteralClass: 233 case Stmt::ObjCSubscriptRefExprClass: 234 K = CXCursor_UnexposedExpr; 235 break; 236 237 case Stmt::OpaqueValueExprClass: 238 if (Expr *Src = cast<OpaqueValueExpr>(S)->getSourceExpr()) 239 return MakeCXCursor(Src, Parent, TU, RegionOfInterest); 240 K = CXCursor_UnexposedExpr; 241 break; 242 243 case Stmt::PseudoObjectExprClass: 244 return MakeCXCursor(cast<PseudoObjectExpr>(S)->getSyntacticForm(), 245 Parent, TU, RegionOfInterest); 246 247 case Stmt::CompoundStmtClass: 248 K = CXCursor_CompoundStmt; 249 break; 250 251 case Stmt::NullStmtClass: 252 K = CXCursor_NullStmt; 253 break; 254 255 case Stmt::LabelStmtClass: 256 K = CXCursor_LabelStmt; 257 break; 258 259 case Stmt::DeclStmtClass: 260 K = CXCursor_DeclStmt; 261 break; 262 263 case Stmt::IntegerLiteralClass: 264 K = CXCursor_IntegerLiteral; 265 break; 266 267 case Stmt::FloatingLiteralClass: 268 K = CXCursor_FloatingLiteral; 269 break; 270 271 case Stmt::ImaginaryLiteralClass: 272 K = CXCursor_ImaginaryLiteral; 273 break; 274 275 case Stmt::StringLiteralClass: 276 K = CXCursor_StringLiteral; 277 break; 278 279 case Stmt::CharacterLiteralClass: 280 K = CXCursor_CharacterLiteral; 281 break; 282 283 case Stmt::ParenExprClass: 284 K = CXCursor_ParenExpr; 285 break; 286 287 case Stmt::UnaryOperatorClass: 288 K = CXCursor_UnaryOperator; 289 break; 290 291 case Stmt::CXXNoexceptExprClass: 292 K = CXCursor_UnaryExpr; 293 break; 294 295 case Stmt::ArraySubscriptExprClass: 296 K = CXCursor_ArraySubscriptExpr; 297 break; 298 299 case Stmt::BinaryOperatorClass: 300 K = CXCursor_BinaryOperator; 301 break; 302 303 case Stmt::CompoundAssignOperatorClass: 304 K = CXCursor_CompoundAssignOperator; 305 break; 306 307 case Stmt::ConditionalOperatorClass: 308 K = CXCursor_ConditionalOperator; 309 break; 310 311 case Stmt::CStyleCastExprClass: 312 K = CXCursor_CStyleCastExpr; 313 break; 314 315 case Stmt::CompoundLiteralExprClass: 316 K = CXCursor_CompoundLiteralExpr; 317 break; 318 319 case Stmt::InitListExprClass: 320 K = CXCursor_InitListExpr; 321 break; 322 323 case Stmt::AddrLabelExprClass: 324 K = CXCursor_AddrLabelExpr; 325 break; 326 327 case Stmt::StmtExprClass: 328 K = CXCursor_StmtExpr; 329 break; 330 331 case Stmt::GenericSelectionExprClass: 332 K = CXCursor_GenericSelectionExpr; 333 break; 334 335 case Stmt::GNUNullExprClass: 336 K = CXCursor_GNUNullExpr; 337 break; 338 339 case Stmt::CXXStaticCastExprClass: 340 K = CXCursor_CXXStaticCastExpr; 341 break; 342 343 case Stmt::CXXDynamicCastExprClass: 344 K = CXCursor_CXXDynamicCastExpr; 345 break; 346 347 case Stmt::CXXReinterpretCastExprClass: 348 K = CXCursor_CXXReinterpretCastExpr; 349 break; 350 351 case Stmt::CXXConstCastExprClass: 352 K = CXCursor_CXXConstCastExpr; 353 break; 354 355 case Stmt::CXXFunctionalCastExprClass: 356 K = CXCursor_CXXFunctionalCastExpr; 357 break; 358 359 case Stmt::CXXTypeidExprClass: 360 K = CXCursor_CXXTypeidExpr; 361 break; 362 363 case Stmt::CXXBoolLiteralExprClass: 364 K = CXCursor_CXXBoolLiteralExpr; 365 break; 366 367 case Stmt::CXXNullPtrLiteralExprClass: 368 K = CXCursor_CXXNullPtrLiteralExpr; 369 break; 370 371 case Stmt::CXXThisExprClass: 372 K = CXCursor_CXXThisExpr; 373 break; 374 375 case Stmt::CXXThrowExprClass: 376 K = CXCursor_CXXThrowExpr; 377 break; 378 379 case Stmt::CXXNewExprClass: 380 K = CXCursor_CXXNewExpr; 381 break; 382 383 case Stmt::CXXDeleteExprClass: 384 K = CXCursor_CXXDeleteExpr; 385 break; 386 387 case Stmt::ObjCStringLiteralClass: 388 K = CXCursor_ObjCStringLiteral; 389 break; 390 391 case Stmt::ObjCEncodeExprClass: 392 K = CXCursor_ObjCEncodeExpr; 393 break; 394 395 case Stmt::ObjCSelectorExprClass: 396 K = CXCursor_ObjCSelectorExpr; 397 break; 398 399 case Stmt::ObjCProtocolExprClass: 400 K = CXCursor_ObjCProtocolExpr; 401 break; 402 403 case Stmt::ObjCBoolLiteralExprClass: 404 K = CXCursor_ObjCBoolLiteralExpr; 405 break; 406 407 case Stmt::ObjCBridgedCastExprClass: 408 K = CXCursor_ObjCBridgedCastExpr; 409 break; 410 411 case Stmt::BlockExprClass: 412 K = CXCursor_BlockExpr; 413 break; 414 415 case Stmt::PackExpansionExprClass: 416 K = CXCursor_PackExpansionExpr; 417 break; 418 419 case Stmt::SizeOfPackExprClass: 420 K = CXCursor_SizeOfPackExpr; 421 break; 422 423 case Stmt::DeclRefExprClass: 424 case Stmt::DependentScopeDeclRefExprClass: 425 case Stmt::SubstNonTypeTemplateParmExprClass: 426 case Stmt::SubstNonTypeTemplateParmPackExprClass: 427 case Stmt::UnresolvedLookupExprClass: 428 K = CXCursor_DeclRefExpr; 429 break; 430 431 case Stmt::CXXDependentScopeMemberExprClass: 432 case Stmt::CXXPseudoDestructorExprClass: 433 case Stmt::MemberExprClass: 434 case Stmt::ObjCIsaExprClass: 435 case Stmt::ObjCIvarRefExprClass: 436 case Stmt::ObjCPropertyRefExprClass: 437 case Stmt::UnresolvedMemberExprClass: 438 K = CXCursor_MemberRefExpr; 439 break; 440 441 case Stmt::CallExprClass: 442 case Stmt::CXXOperatorCallExprClass: 443 case Stmt::CXXMemberCallExprClass: 444 case Stmt::CUDAKernelCallExprClass: 445 case Stmt::CXXConstructExprClass: 446 case Stmt::CXXTemporaryObjectExprClass: 447 case Stmt::CXXUnresolvedConstructExprClass: 448 case Stmt::UserDefinedLiteralClass: 449 K = CXCursor_CallExpr; 450 break; 451 452 case Stmt::LambdaExprClass: 453 K = CXCursor_LambdaExpr; 454 break; 455 456 case Stmt::ObjCMessageExprClass: { 457 K = CXCursor_ObjCMessageExpr; 458 int SelectorIdIndex = -1; 459 // Check if cursor points to a selector id. 460 if (RegionOfInterest.isValid() && 461 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) { 462 SmallVector<SourceLocation, 16> SelLocs; 463 cast<ObjCMessageExpr>(S)->getSelectorLocs(SelLocs); 464 SmallVector<SourceLocation, 16>::iterator 465 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin()); 466 if (I != SelLocs.end()) 467 SelectorIdIndex = I - SelLocs.begin(); 468 } 469 CXCursor C = { K, 0, { Parent, S, TU } }; 470 return getSelectorIdentifierCursor(SelectorIdIndex, C); 471 } 472 473 case Stmt::MSDependentExistsStmtClass: 474 K = CXCursor_UnexposedStmt; 475 break; 476 } 477 478 CXCursor C = { K, 0, { Parent, S, TU } }; 479 return C; 480 } 481 482 CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super, 483 SourceLocation Loc, 484 CXTranslationUnit TU) { 485 assert(Super && TU && "Invalid arguments!"); 486 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 487 CXCursor C = { CXCursor_ObjCSuperClassRef, 0, { Super, RawLoc, TU } }; 488 return C; 489 } 490 491 std::pair<ObjCInterfaceDecl *, SourceLocation> 492 cxcursor::getCursorObjCSuperClassRef(CXCursor C) { 493 assert(C.kind == CXCursor_ObjCSuperClassRef); 494 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 495 SourceLocation::getFromRawEncoding( 496 reinterpret_cast<uintptr_t>(C.data[1]))); 497 } 498 499 CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto, 500 SourceLocation Loc, 501 CXTranslationUnit TU) { 502 assert(Proto && TU && "Invalid arguments!"); 503 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 504 CXCursor C = { CXCursor_ObjCProtocolRef, 0, { (void*)Proto, RawLoc, TU } }; 505 return C; 506 } 507 508 std::pair<ObjCProtocolDecl *, SourceLocation> 509 cxcursor::getCursorObjCProtocolRef(CXCursor C) { 510 assert(C.kind == CXCursor_ObjCProtocolRef); 511 return std::make_pair(static_cast<ObjCProtocolDecl *>(C.data[0]), 512 SourceLocation::getFromRawEncoding( 513 reinterpret_cast<uintptr_t>(C.data[1]))); 514 } 515 516 CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class, 517 SourceLocation Loc, 518 CXTranslationUnit TU) { 519 // 'Class' can be null for invalid code. 520 if (!Class) 521 return MakeCXCursorInvalid(CXCursor_InvalidCode); 522 assert(TU && "Invalid arguments!"); 523 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 524 CXCursor C = { CXCursor_ObjCClassRef, 0, { (void*)Class, RawLoc, TU } }; 525 return C; 526 } 527 528 std::pair<ObjCInterfaceDecl *, SourceLocation> 529 cxcursor::getCursorObjCClassRef(CXCursor C) { 530 assert(C.kind == CXCursor_ObjCClassRef); 531 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 532 SourceLocation::getFromRawEncoding( 533 reinterpret_cast<uintptr_t>(C.data[1]))); 534 } 535 536 CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc, 537 CXTranslationUnit TU) { 538 assert(Type && TU && "Invalid arguments!"); 539 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 540 CXCursor C = { CXCursor_TypeRef, 0, { (void*)Type, RawLoc, TU } }; 541 return C; 542 } 543 544 std::pair<TypeDecl *, SourceLocation> 545 cxcursor::getCursorTypeRef(CXCursor C) { 546 assert(C.kind == CXCursor_TypeRef); 547 return std::make_pair(static_cast<TypeDecl *>(C.data[0]), 548 SourceLocation::getFromRawEncoding( 549 reinterpret_cast<uintptr_t>(C.data[1]))); 550 } 551 552 CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template, 553 SourceLocation Loc, 554 CXTranslationUnit TU) { 555 assert(Template && TU && "Invalid arguments!"); 556 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 557 CXCursor C = { CXCursor_TemplateRef, 0, { (void*)Template, RawLoc, TU } }; 558 return C; 559 } 560 561 std::pair<TemplateDecl *, SourceLocation> 562 cxcursor::getCursorTemplateRef(CXCursor C) { 563 assert(C.kind == CXCursor_TemplateRef); 564 return std::make_pair(static_cast<TemplateDecl *>(C.data[0]), 565 SourceLocation::getFromRawEncoding( 566 reinterpret_cast<uintptr_t>(C.data[1]))); 567 } 568 569 CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS, 570 SourceLocation Loc, 571 CXTranslationUnit TU) { 572 573 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU && 574 "Invalid arguments!"); 575 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 576 CXCursor C = { CXCursor_NamespaceRef, 0, { (void*)NS, RawLoc, TU } }; 577 return C; 578 } 579 580 std::pair<NamedDecl *, SourceLocation> 581 cxcursor::getCursorNamespaceRef(CXCursor C) { 582 assert(C.kind == CXCursor_NamespaceRef); 583 return std::make_pair(static_cast<NamedDecl *>(C.data[0]), 584 SourceLocation::getFromRawEncoding( 585 reinterpret_cast<uintptr_t>(C.data[1]))); 586 } 587 588 CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc, 589 CXTranslationUnit TU) { 590 591 assert(Var && TU && "Invalid arguments!"); 592 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 593 CXCursor C = { CXCursor_VariableRef, 0, { (void*)Var, RawLoc, TU } }; 594 return C; 595 } 596 597 std::pair<VarDecl *, SourceLocation> 598 cxcursor::getCursorVariableRef(CXCursor C) { 599 assert(C.kind == CXCursor_VariableRef); 600 return std::make_pair(static_cast<VarDecl *>(C.data[0]), 601 SourceLocation::getFromRawEncoding( 602 reinterpret_cast<uintptr_t>(C.data[1]))); 603 } 604 605 CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field, SourceLocation Loc, 606 CXTranslationUnit TU) { 607 608 assert(Field && TU && "Invalid arguments!"); 609 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 610 CXCursor C = { CXCursor_MemberRef, 0, { (void*)Field, RawLoc, TU } }; 611 return C; 612 } 613 614 std::pair<FieldDecl *, SourceLocation> 615 cxcursor::getCursorMemberRef(CXCursor C) { 616 assert(C.kind == CXCursor_MemberRef); 617 return std::make_pair(static_cast<FieldDecl *>(C.data[0]), 618 SourceLocation::getFromRawEncoding( 619 reinterpret_cast<uintptr_t>(C.data[1]))); 620 } 621 622 CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B, 623 CXTranslationUnit TU){ 624 CXCursor C = { CXCursor_CXXBaseSpecifier, 0, { (void*)B, 0, TU } }; 625 return C; 626 } 627 628 CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) { 629 assert(C.kind == CXCursor_CXXBaseSpecifier); 630 return static_cast<CXXBaseSpecifier*>(C.data[0]); 631 } 632 633 CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range, 634 CXTranslationUnit TU) { 635 CXCursor C = { CXCursor_PreprocessingDirective, 0, 636 { reinterpret_cast<void *>(Range.getBegin().getRawEncoding()), 637 reinterpret_cast<void *>(Range.getEnd().getRawEncoding()), 638 TU } 639 }; 640 return C; 641 } 642 643 SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) { 644 assert(C.kind == CXCursor_PreprocessingDirective); 645 SourceRange Range = SourceRange(SourceLocation::getFromRawEncoding( 646 reinterpret_cast<uintptr_t> (C.data[0])), 647 SourceLocation::getFromRawEncoding( 648 reinterpret_cast<uintptr_t> (C.data[1]))); 649 ASTUnit *TU = getCursorASTUnit(C); 650 return TU->mapRangeFromPreamble(Range); 651 } 652 653 CXCursor cxcursor::MakeMacroDefinitionCursor(MacroDefinition *MI, 654 CXTranslationUnit TU) { 655 CXCursor C = { CXCursor_MacroDefinition, 0, { MI, 0, TU } }; 656 return C; 657 } 658 659 MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) { 660 assert(C.kind == CXCursor_MacroDefinition); 661 return static_cast<MacroDefinition *>(C.data[0]); 662 } 663 664 CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI, 665 CXTranslationUnit TU) { 666 CXCursor C = { CXCursor_MacroExpansion, 0, { MI, 0, TU } }; 667 return C; 668 } 669 670 MacroExpansion *cxcursor::getCursorMacroExpansion(CXCursor C) { 671 assert(C.kind == CXCursor_MacroExpansion); 672 return static_cast<MacroExpansion *>(C.data[0]); 673 } 674 675 CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID, 676 CXTranslationUnit TU) { 677 CXCursor C = { CXCursor_InclusionDirective, 0, { ID, 0, TU } }; 678 return C; 679 } 680 681 InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) { 682 assert(C.kind == CXCursor_InclusionDirective); 683 return static_cast<InclusionDirective *>(C.data[0]); 684 } 685 686 CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc, 687 CXTranslationUnit TU) { 688 689 assert(Label && TU && "Invalid arguments!"); 690 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 691 CXCursor C = { CXCursor_LabelRef, 0, { Label, RawLoc, TU } }; 692 return C; 693 } 694 695 std::pair<LabelStmt*, SourceLocation> 696 cxcursor::getCursorLabelRef(CXCursor C) { 697 assert(C.kind == CXCursor_LabelRef); 698 return std::make_pair(static_cast<LabelStmt *>(C.data[0]), 699 SourceLocation::getFromRawEncoding( 700 reinterpret_cast<uintptr_t>(C.data[1]))); 701 } 702 703 CXCursor cxcursor::MakeCursorOverloadedDeclRef(OverloadExpr *E, 704 CXTranslationUnit TU) { 705 assert(E && TU && "Invalid arguments!"); 706 OverloadedDeclRefStorage Storage(E); 707 void *RawLoc = reinterpret_cast<void *>(E->getNameLoc().getRawEncoding()); 708 CXCursor C = { 709 CXCursor_OverloadedDeclRef, 0, 710 { Storage.getOpaqueValue(), RawLoc, TU } 711 }; 712 return C; 713 } 714 715 CXCursor cxcursor::MakeCursorOverloadedDeclRef(Decl *D, 716 SourceLocation Loc, 717 CXTranslationUnit TU) { 718 assert(D && TU && "Invalid arguments!"); 719 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 720 OverloadedDeclRefStorage Storage(D); 721 CXCursor C = { 722 CXCursor_OverloadedDeclRef, 0, 723 { Storage.getOpaqueValue(), RawLoc, TU } 724 }; 725 return C; 726 } 727 728 CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name, 729 SourceLocation Loc, 730 CXTranslationUnit TU) { 731 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!"); 732 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 733 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate()); 734 CXCursor C = { 735 CXCursor_OverloadedDeclRef, 0, 736 { Storage.getOpaqueValue(), RawLoc, TU } 737 }; 738 return C; 739 } 740 741 std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation> 742 cxcursor::getCursorOverloadedDeclRef(CXCursor C) { 743 assert(C.kind == CXCursor_OverloadedDeclRef); 744 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(C.data[0]), 745 SourceLocation::getFromRawEncoding( 746 reinterpret_cast<uintptr_t>(C.data[1]))); 747 } 748 749 Decl *cxcursor::getCursorDecl(CXCursor Cursor) { 750 return (Decl *)Cursor.data[0]; 751 } 752 753 Expr *cxcursor::getCursorExpr(CXCursor Cursor) { 754 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor)); 755 } 756 757 Stmt *cxcursor::getCursorStmt(CXCursor Cursor) { 758 if (Cursor.kind == CXCursor_ObjCSuperClassRef || 759 Cursor.kind == CXCursor_ObjCProtocolRef || 760 Cursor.kind == CXCursor_ObjCClassRef) 761 return 0; 762 763 return (Stmt *)Cursor.data[1]; 764 } 765 766 Attr *cxcursor::getCursorAttr(CXCursor Cursor) { 767 return (Attr *)Cursor.data[1]; 768 } 769 770 Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) { 771 return (Decl *)Cursor.data[0]; 772 } 773 774 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) { 775 return getCursorASTUnit(Cursor)->getASTContext(); 776 } 777 778 ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) { 779 CXTranslationUnit TU = static_cast<CXTranslationUnit>(Cursor.data[2]); 780 if (!TU) 781 return 0; 782 return static_cast<ASTUnit *>(TU->TUData); 783 } 784 785 CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) { 786 return static_cast<CXTranslationUnit>(Cursor.data[2]); 787 } 788 789 static void CollectOverriddenMethods(CXTranslationUnit TU, 790 DeclContext *Ctx, 791 ObjCMethodDecl *Method, 792 SmallVectorImpl<CXCursor> &Methods) { 793 if (!Ctx) 794 return; 795 796 ObjCContainerDecl *Container = dyn_cast<ObjCContainerDecl>(Ctx); 797 if (!Container) 798 return; 799 800 // In categories look for overriden methods from protocols. A method from 801 // category is not "overriden" since it is considered as the "same" method 802 // (same USR) as the one from the interface. 803 if (ObjCCategoryDecl *Category = dyn_cast<ObjCCategoryDecl>(Container)) { 804 for (ObjCCategoryDecl::protocol_iterator P = Category->protocol_begin(), 805 PEnd = Category->protocol_end(); 806 P != PEnd; ++P) 807 CollectOverriddenMethods(TU, *P, Method, Methods); 808 return; 809 } 810 811 // Check whether we have a matching method at this level. 812 if (ObjCMethodDecl *Overridden = Container->getMethod(Method->getSelector(), 813 Method->isInstanceMethod())) 814 if (Method != Overridden) { 815 // We found an override at this level; there is no need to look 816 // into other protocols or categories. 817 Methods.push_back(MakeCXCursor(Overridden, TU)); 818 return; 819 } 820 821 if (ObjCProtocolDecl *Protocol = dyn_cast<ObjCProtocolDecl>(Container)) { 822 for (ObjCProtocolDecl::protocol_iterator P = Protocol->protocol_begin(), 823 PEnd = Protocol->protocol_end(); 824 P != PEnd; ++P) 825 CollectOverriddenMethods(TU, *P, Method, Methods); 826 } 827 828 if (ObjCInterfaceDecl *Interface = dyn_cast<ObjCInterfaceDecl>(Container)) { 829 for (ObjCInterfaceDecl::protocol_iterator P = Interface->protocol_begin(), 830 PEnd = Interface->protocol_end(); 831 P != PEnd; ++P) 832 CollectOverriddenMethods(TU, *P, Method, Methods); 833 834 for (ObjCCategoryDecl *Category = Interface->getCategoryList(); 835 Category; Category = Category->getNextClassCategory()) 836 CollectOverriddenMethods(TU, Category, Method, Methods); 837 838 if (ObjCInterfaceDecl *Super = Interface->getSuperClass()) 839 return CollectOverriddenMethods(TU, Super, Method, Methods); 840 } 841 } 842 843 void cxcursor::getOverriddenCursors(CXCursor cursor, 844 SmallVectorImpl<CXCursor> &overridden) { 845 if (!clang_isDeclaration(cursor.kind)) 846 return; 847 848 Decl *D = getCursorDecl(cursor); 849 if (!D) 850 return; 851 852 // Handle C++ member functions. 853 CXTranslationUnit TU = getCursorTU(cursor); 854 if (CXXMethodDecl *CXXMethod = dyn_cast<CXXMethodDecl>(D)) { 855 for (CXXMethodDecl::method_iterator 856 M = CXXMethod->begin_overridden_methods(), 857 MEnd = CXXMethod->end_overridden_methods(); 858 M != MEnd; ++M) 859 overridden.push_back(MakeCXCursor(const_cast<CXXMethodDecl*>(*M), TU)); 860 return; 861 } 862 863 ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(D); 864 if (!Method) 865 return; 866 867 if (ObjCProtocolDecl * 868 ProtD = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext())) { 869 CollectOverriddenMethods(TU, ProtD, Method, overridden); 870 871 } else if (ObjCImplDecl * 872 IMD = dyn_cast<ObjCImplDecl>(Method->getDeclContext())) { 873 ObjCInterfaceDecl *ID = IMD->getClassInterface(); 874 if (!ID) 875 return; 876 // Start searching for overridden methods using the method from the 877 // interface as starting point. 878 if (ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), 879 Method->isInstanceMethod())) 880 Method = IFaceMeth; 881 CollectOverriddenMethods(TU, ID, Method, overridden); 882 883 } else if (ObjCCategoryDecl * 884 CatD = dyn_cast<ObjCCategoryDecl>(Method->getDeclContext())) { 885 ObjCInterfaceDecl *ID = CatD->getClassInterface(); 886 if (!ID) 887 return; 888 // Start searching for overridden methods using the method from the 889 // interface as starting point. 890 if (ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), 891 Method->isInstanceMethod())) 892 Method = IFaceMeth; 893 CollectOverriddenMethods(TU, ID, Method, overridden); 894 895 } else { 896 CollectOverriddenMethods(TU, Method->getDeclContext(), Method, overridden); 897 } 898 } 899 900 std::pair<int, SourceLocation> 901 cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) { 902 if (cursor.kind == CXCursor_ObjCMessageExpr) { 903 if (cursor.xdata != -1) 904 return std::make_pair(cursor.xdata, 905 cast<ObjCMessageExpr>(getCursorExpr(cursor)) 906 ->getSelectorLoc(cursor.xdata)); 907 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl || 908 cursor.kind == CXCursor_ObjCInstanceMethodDecl) { 909 if (cursor.xdata != -1) 910 return std::make_pair(cursor.xdata, 911 cast<ObjCMethodDecl>(getCursorDecl(cursor)) 912 ->getSelectorLoc(cursor.xdata)); 913 } 914 915 return std::make_pair(-1, SourceLocation()); 916 } 917 918 CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) { 919 CXCursor newCursor = cursor; 920 921 if (cursor.kind == CXCursor_ObjCMessageExpr) { 922 if (SelIdx == -1 || 923 unsigned(SelIdx) >= cast<ObjCMessageExpr>(getCursorExpr(cursor)) 924 ->getNumSelectorLocs()) 925 newCursor.xdata = -1; 926 else 927 newCursor.xdata = SelIdx; 928 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl || 929 cursor.kind == CXCursor_ObjCInstanceMethodDecl) { 930 if (SelIdx == -1 || 931 unsigned(SelIdx) >= cast<ObjCMethodDecl>(getCursorDecl(cursor)) 932 ->getNumSelectorLocs()) 933 newCursor.xdata = -1; 934 else 935 newCursor.xdata = SelIdx; 936 } 937 938 return newCursor; 939 } 940 941 CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) { 942 if (cursor.kind != CXCursor_CallExpr) 943 return cursor; 944 945 if (cursor.xdata == 0) 946 return cursor; 947 948 Expr *E = getCursorExpr(cursor); 949 TypeSourceInfo *Type = 0; 950 if (CXXUnresolvedConstructExpr * 951 UnCtor = dyn_cast<CXXUnresolvedConstructExpr>(E)) { 952 Type = UnCtor->getTypeSourceInfo(); 953 } else if (CXXTemporaryObjectExpr *Tmp = dyn_cast<CXXTemporaryObjectExpr>(E)){ 954 Type = Tmp->getTypeSourceInfo(); 955 } 956 957 if (!Type) 958 return cursor; 959 960 CXTranslationUnit TU = getCursorTU(cursor); 961 QualType Ty = Type->getType(); 962 TypeLoc TL = Type->getTypeLoc(); 963 SourceLocation Loc = TL.getBeginLoc(); 964 965 if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) { 966 Ty = ElabT->getNamedType(); 967 ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(TL); 968 Loc = ElabTL.getNamedTypeLoc().getBeginLoc(); 969 } 970 971 if (const TypedefType *Typedef = Ty->getAs<TypedefType>()) 972 return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU); 973 if (const TagType *Tag = Ty->getAs<TagType>()) 974 return MakeCursorTypeRef(Tag->getDecl(), Loc, TU); 975 if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>()) 976 return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU); 977 978 return cursor; 979 } 980 981 bool cxcursor::operator==(CXCursor X, CXCursor Y) { 982 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] && 983 X.data[2] == Y.data[2]; 984 } 985 986 // FIXME: Remove once we can model DeclGroups and their appropriate ranges 987 // properly in the ASTs. 988 bool cxcursor::isFirstInDeclGroup(CXCursor C) { 989 assert(clang_isDeclaration(C.kind)); 990 return ((uintptr_t) (C.data[1])) != 0; 991 } 992 993 //===----------------------------------------------------------------------===// 994 // libclang CXCursor APIs 995 //===----------------------------------------------------------------------===// 996 997 extern "C" { 998 999 int clang_Cursor_isNull(CXCursor cursor) { 1000 return clang_equalCursors(cursor, clang_getNullCursor()); 1001 } 1002 1003 CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) { 1004 return getCursorTU(cursor); 1005 } 1006 1007 } // end: extern "C" 1008 1009 //===----------------------------------------------------------------------===// 1010 // CXCursorSet. 1011 //===----------------------------------------------------------------------===// 1012 1013 typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl; 1014 1015 static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) { 1016 return (CXCursorSet) setImpl; 1017 } 1018 static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) { 1019 return (CXCursorSet_Impl*) set; 1020 } 1021 namespace llvm { 1022 template<> struct DenseMapInfo<CXCursor> { 1023 public: 1024 static inline CXCursor getEmptyKey() { 1025 return MakeCXCursorInvalid(CXCursor_InvalidFile); 1026 } 1027 static inline CXCursor getTombstoneKey() { 1028 return MakeCXCursorInvalid(CXCursor_NoDeclFound); 1029 } 1030 static inline unsigned getHashValue(const CXCursor &cursor) { 1031 return llvm::DenseMapInfo<std::pair<void*,void*> > 1032 ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1])); 1033 } 1034 static inline bool isEqual(const CXCursor &x, const CXCursor &y) { 1035 return x.kind == y.kind && 1036 x.data[0] == y.data[0] && 1037 x.data[1] == y.data[1]; 1038 } 1039 }; 1040 } 1041 1042 extern "C" { 1043 CXCursorSet clang_createCXCursorSet() { 1044 return packCXCursorSet(new CXCursorSet_Impl()); 1045 } 1046 1047 void clang_disposeCXCursorSet(CXCursorSet set) { 1048 delete unpackCXCursorSet(set); 1049 } 1050 1051 unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) { 1052 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 1053 if (!setImpl) 1054 return 0; 1055 return setImpl->find(cursor) == setImpl->end(); 1056 } 1057 1058 unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) { 1059 // Do not insert invalid cursors into the set. 1060 if (cursor.kind >= CXCursor_FirstInvalid && 1061 cursor.kind <= CXCursor_LastInvalid) 1062 return 1; 1063 1064 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 1065 if (!setImpl) 1066 return 1; 1067 unsigned &entry = (*setImpl)[cursor]; 1068 unsigned flag = entry == 0 ? 1 : 0; 1069 entry = 1; 1070 return flag; 1071 } 1072 1073 CXCompletionString clang_getCursorCompletionString(CXCursor cursor) { 1074 enum CXCursorKind kind = clang_getCursorKind(cursor); 1075 if (clang_isDeclaration(kind)) { 1076 Decl *decl = getCursorDecl(cursor); 1077 if (NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) { 1078 ASTUnit *unit = getCursorASTUnit(cursor); 1079 CodeCompletionAllocator *Allocator 1080 = unit->getCursorCompletionAllocator().getPtr(); 1081 CodeCompletionResult Result(namedDecl); 1082 CodeCompletionString *String 1083 = Result.CreateCodeCompletionString(unit->getASTContext(), 1084 unit->getPreprocessor(), 1085 *Allocator); 1086 return String; 1087 } 1088 } 1089 else if (kind == CXCursor_MacroDefinition) { 1090 MacroDefinition *definition = getCursorMacroDefinition(cursor); 1091 const IdentifierInfo *MacroInfo = definition->getName(); 1092 ASTUnit *unit = getCursorASTUnit(cursor); 1093 CodeCompletionAllocator *Allocator 1094 = unit->getCursorCompletionAllocator().getPtr(); 1095 CodeCompletionResult Result(const_cast<IdentifierInfo *>(MacroInfo)); 1096 CodeCompletionString *String 1097 = Result.CreateCodeCompletionString(unit->getASTContext(), 1098 unit->getPreprocessor(), 1099 *Allocator); 1100 return String; 1101 } 1102 return NULL; 1103 } 1104 1105 } // end: extern "C" 1106