CXCursor.cpp revision 9a4db032ecd991626d236a502e770126db32bd31
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 30using namespace clang; 31using namespace cxcursor; 32 33CXCursor cxcursor::MakeCXCursorInvalid(CXCursorKind K, CXTranslationUnit TU) { 34 assert(K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid); 35 CXCursor C = { K, 0, { 0, 0, TU } }; 36 return C; 37} 38 39static 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 55CXCursor 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 62CXCursor 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 91CXCursor 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::GCCAsmStmtClass: 149 K = CXCursor_GCCAsmStmt; 150 break; 151 152 case Stmt::MSAsmStmtClass: 153 K = CXCursor_MSAsmStmt; 154 break; 155 156 case Stmt::ObjCAtTryStmtClass: 157 K = CXCursor_ObjCAtTryStmt; 158 break; 159 160 case Stmt::ObjCAtCatchStmtClass: 161 K = CXCursor_ObjCAtCatchStmt; 162 break; 163 164 case Stmt::ObjCAtFinallyStmtClass: 165 K = CXCursor_ObjCAtFinallyStmt; 166 break; 167 168 case Stmt::ObjCAtThrowStmtClass: 169 K = CXCursor_ObjCAtThrowStmt; 170 break; 171 172 case Stmt::ObjCAtSynchronizedStmtClass: 173 K = CXCursor_ObjCAtSynchronizedStmt; 174 break; 175 176 case Stmt::ObjCAutoreleasePoolStmtClass: 177 K = CXCursor_ObjCAutoreleasePoolStmt; 178 break; 179 180 case Stmt::ObjCForCollectionStmtClass: 181 K = CXCursor_ObjCForCollectionStmt; 182 break; 183 184 case Stmt::CXXCatchStmtClass: 185 K = CXCursor_CXXCatchStmt; 186 break; 187 188 case Stmt::CXXTryStmtClass: 189 K = CXCursor_CXXTryStmt; 190 break; 191 192 case Stmt::CXXForRangeStmtClass: 193 K = CXCursor_CXXForRangeStmt; 194 break; 195 196 case Stmt::SEHTryStmtClass: 197 K = CXCursor_SEHTryStmt; 198 break; 199 200 case Stmt::SEHExceptStmtClass: 201 K = CXCursor_SEHExceptStmt; 202 break; 203 204 case Stmt::SEHFinallyStmtClass: 205 K = CXCursor_SEHFinallyStmt; 206 break; 207 208 case Stmt::ArrayTypeTraitExprClass: 209 case Stmt::AsTypeExprClass: 210 case Stmt::AtomicExprClass: 211 case Stmt::BinaryConditionalOperatorClass: 212 case Stmt::BinaryTypeTraitExprClass: 213 case Stmt::TypeTraitExprClass: 214 case Stmt::CXXBindTemporaryExprClass: 215 case Stmt::CXXDefaultArgExprClass: 216 case Stmt::CXXScalarValueInitExprClass: 217 case Stmt::CXXUuidofExprClass: 218 case Stmt::ChooseExprClass: 219 case Stmt::DesignatedInitExprClass: 220 case Stmt::ExprWithCleanupsClass: 221 case Stmt::ExpressionTraitExprClass: 222 case Stmt::ExtVectorElementExprClass: 223 case Stmt::ImplicitCastExprClass: 224 case Stmt::ImplicitValueInitExprClass: 225 case Stmt::MaterializeTemporaryExprClass: 226 case Stmt::ObjCIndirectCopyRestoreExprClass: 227 case Stmt::OffsetOfExprClass: 228 case Stmt::ParenListExprClass: 229 case Stmt::PredefinedExprClass: 230 case Stmt::ShuffleVectorExprClass: 231 case Stmt::UnaryExprOrTypeTraitExprClass: 232 case Stmt::UnaryTypeTraitExprClass: 233 case Stmt::VAArgExprClass: 234 case Stmt::ObjCArrayLiteralClass: 235 case Stmt::ObjCDictionaryLiteralClass: 236 case Stmt::ObjCBoxedExprClass: 237 case Stmt::ObjCSubscriptRefExprClass: 238 K = CXCursor_UnexposedExpr; 239 break; 240 241 case Stmt::OpaqueValueExprClass: 242 if (Expr *Src = cast<OpaqueValueExpr>(S)->getSourceExpr()) 243 return MakeCXCursor(Src, Parent, TU, RegionOfInterest); 244 K = CXCursor_UnexposedExpr; 245 break; 246 247 case Stmt::PseudoObjectExprClass: 248 return MakeCXCursor(cast<PseudoObjectExpr>(S)->getSyntacticForm(), 249 Parent, TU, RegionOfInterest); 250 251 case Stmt::CompoundStmtClass: 252 K = CXCursor_CompoundStmt; 253 break; 254 255 case Stmt::NullStmtClass: 256 K = CXCursor_NullStmt; 257 break; 258 259 case Stmt::LabelStmtClass: 260 K = CXCursor_LabelStmt; 261 break; 262 263 case Stmt::AttributedStmtClass: 264 K = CXCursor_UnexposedStmt; 265 break; 266 267 case Stmt::DeclStmtClass: 268 K = CXCursor_DeclStmt; 269 break; 270 271 case Stmt::IntegerLiteralClass: 272 K = CXCursor_IntegerLiteral; 273 break; 274 275 case Stmt::FloatingLiteralClass: 276 K = CXCursor_FloatingLiteral; 277 break; 278 279 case Stmt::ImaginaryLiteralClass: 280 K = CXCursor_ImaginaryLiteral; 281 break; 282 283 case Stmt::StringLiteralClass: 284 K = CXCursor_StringLiteral; 285 break; 286 287 case Stmt::CharacterLiteralClass: 288 K = CXCursor_CharacterLiteral; 289 break; 290 291 case Stmt::ParenExprClass: 292 K = CXCursor_ParenExpr; 293 break; 294 295 case Stmt::UnaryOperatorClass: 296 K = CXCursor_UnaryOperator; 297 break; 298 299 case Stmt::CXXNoexceptExprClass: 300 K = CXCursor_UnaryExpr; 301 break; 302 303 case Stmt::ArraySubscriptExprClass: 304 K = CXCursor_ArraySubscriptExpr; 305 break; 306 307 case Stmt::BinaryOperatorClass: 308 K = CXCursor_BinaryOperator; 309 break; 310 311 case Stmt::CompoundAssignOperatorClass: 312 K = CXCursor_CompoundAssignOperator; 313 break; 314 315 case Stmt::ConditionalOperatorClass: 316 K = CXCursor_ConditionalOperator; 317 break; 318 319 case Stmt::CStyleCastExprClass: 320 K = CXCursor_CStyleCastExpr; 321 break; 322 323 case Stmt::CompoundLiteralExprClass: 324 K = CXCursor_CompoundLiteralExpr; 325 break; 326 327 case Stmt::InitListExprClass: 328 K = CXCursor_InitListExpr; 329 break; 330 331 case Stmt::AddrLabelExprClass: 332 K = CXCursor_AddrLabelExpr; 333 break; 334 335 case Stmt::StmtExprClass: 336 K = CXCursor_StmtExpr; 337 break; 338 339 case Stmt::GenericSelectionExprClass: 340 K = CXCursor_GenericSelectionExpr; 341 break; 342 343 case Stmt::GNUNullExprClass: 344 K = CXCursor_GNUNullExpr; 345 break; 346 347 case Stmt::CXXStaticCastExprClass: 348 K = CXCursor_CXXStaticCastExpr; 349 break; 350 351 case Stmt::CXXDynamicCastExprClass: 352 K = CXCursor_CXXDynamicCastExpr; 353 break; 354 355 case Stmt::CXXReinterpretCastExprClass: 356 K = CXCursor_CXXReinterpretCastExpr; 357 break; 358 359 case Stmt::CXXConstCastExprClass: 360 K = CXCursor_CXXConstCastExpr; 361 break; 362 363 case Stmt::CXXFunctionalCastExprClass: 364 K = CXCursor_CXXFunctionalCastExpr; 365 break; 366 367 case Stmt::CXXTypeidExprClass: 368 K = CXCursor_CXXTypeidExpr; 369 break; 370 371 case Stmt::CXXBoolLiteralExprClass: 372 K = CXCursor_CXXBoolLiteralExpr; 373 break; 374 375 case Stmt::CXXNullPtrLiteralExprClass: 376 K = CXCursor_CXXNullPtrLiteralExpr; 377 break; 378 379 case Stmt::CXXThisExprClass: 380 K = CXCursor_CXXThisExpr; 381 break; 382 383 case Stmt::CXXThrowExprClass: 384 K = CXCursor_CXXThrowExpr; 385 break; 386 387 case Stmt::CXXNewExprClass: 388 K = CXCursor_CXXNewExpr; 389 break; 390 391 case Stmt::CXXDeleteExprClass: 392 K = CXCursor_CXXDeleteExpr; 393 break; 394 395 case Stmt::ObjCStringLiteralClass: 396 K = CXCursor_ObjCStringLiteral; 397 break; 398 399 case Stmt::ObjCEncodeExprClass: 400 K = CXCursor_ObjCEncodeExpr; 401 break; 402 403 case Stmt::ObjCSelectorExprClass: 404 K = CXCursor_ObjCSelectorExpr; 405 break; 406 407 case Stmt::ObjCProtocolExprClass: 408 K = CXCursor_ObjCProtocolExpr; 409 break; 410 411 case Stmt::ObjCBoolLiteralExprClass: 412 K = CXCursor_ObjCBoolLiteralExpr; 413 break; 414 415 case Stmt::ObjCBridgedCastExprClass: 416 K = CXCursor_ObjCBridgedCastExpr; 417 break; 418 419 case Stmt::BlockExprClass: 420 K = CXCursor_BlockExpr; 421 break; 422 423 case Stmt::PackExpansionExprClass: 424 K = CXCursor_PackExpansionExpr; 425 break; 426 427 case Stmt::SizeOfPackExprClass: 428 K = CXCursor_SizeOfPackExpr; 429 break; 430 431 case Stmt::DeclRefExprClass: 432 case Stmt::DependentScopeDeclRefExprClass: 433 case Stmt::SubstNonTypeTemplateParmExprClass: 434 case Stmt::SubstNonTypeTemplateParmPackExprClass: 435 case Stmt::FunctionParmPackExprClass: 436 case Stmt::UnresolvedLookupExprClass: 437 K = CXCursor_DeclRefExpr; 438 break; 439 440 case Stmt::CXXDependentScopeMemberExprClass: 441 case Stmt::CXXPseudoDestructorExprClass: 442 case Stmt::MemberExprClass: 443 case Stmt::ObjCIsaExprClass: 444 case Stmt::ObjCIvarRefExprClass: 445 case Stmt::ObjCPropertyRefExprClass: 446 case Stmt::UnresolvedMemberExprClass: 447 K = CXCursor_MemberRefExpr; 448 break; 449 450 case Stmt::CallExprClass: 451 case Stmt::CXXOperatorCallExprClass: 452 case Stmt::CXXMemberCallExprClass: 453 case Stmt::CUDAKernelCallExprClass: 454 case Stmt::CXXConstructExprClass: 455 case Stmt::CXXTemporaryObjectExprClass: 456 case Stmt::CXXUnresolvedConstructExprClass: 457 case Stmt::UserDefinedLiteralClass: 458 K = CXCursor_CallExpr; 459 break; 460 461 case Stmt::LambdaExprClass: 462 K = CXCursor_LambdaExpr; 463 break; 464 465 case Stmt::ObjCMessageExprClass: { 466 K = CXCursor_ObjCMessageExpr; 467 int SelectorIdIndex = -1; 468 // Check if cursor points to a selector id. 469 if (RegionOfInterest.isValid() && 470 RegionOfInterest.getBegin() == RegionOfInterest.getEnd()) { 471 SmallVector<SourceLocation, 16> SelLocs; 472 cast<ObjCMessageExpr>(S)->getSelectorLocs(SelLocs); 473 SmallVector<SourceLocation, 16>::iterator 474 I=std::find(SelLocs.begin(), SelLocs.end(),RegionOfInterest.getBegin()); 475 if (I != SelLocs.end()) 476 SelectorIdIndex = I - SelLocs.begin(); 477 } 478 CXCursor C = { K, 0, { Parent, S, TU } }; 479 return getSelectorIdentifierCursor(SelectorIdIndex, C); 480 } 481 482 case Stmt::MSDependentExistsStmtClass: 483 K = CXCursor_UnexposedStmt; 484 break; 485 } 486 487 CXCursor C = { K, 0, { Parent, S, TU } }; 488 return C; 489} 490 491CXCursor cxcursor::MakeCursorObjCSuperClassRef(ObjCInterfaceDecl *Super, 492 SourceLocation Loc, 493 CXTranslationUnit TU) { 494 assert(Super && TU && "Invalid arguments!"); 495 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 496 CXCursor C = { CXCursor_ObjCSuperClassRef, 0, { Super, RawLoc, TU } }; 497 return C; 498} 499 500std::pair<ObjCInterfaceDecl *, SourceLocation> 501cxcursor::getCursorObjCSuperClassRef(CXCursor C) { 502 assert(C.kind == CXCursor_ObjCSuperClassRef); 503 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 504 SourceLocation::getFromRawEncoding( 505 reinterpret_cast<uintptr_t>(C.data[1]))); 506} 507 508CXCursor cxcursor::MakeCursorObjCProtocolRef(const ObjCProtocolDecl *Proto, 509 SourceLocation Loc, 510 CXTranslationUnit TU) { 511 assert(Proto && TU && "Invalid arguments!"); 512 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 513 CXCursor C = { CXCursor_ObjCProtocolRef, 0, { (void*)Proto, RawLoc, TU } }; 514 return C; 515} 516 517std::pair<ObjCProtocolDecl *, SourceLocation> 518cxcursor::getCursorObjCProtocolRef(CXCursor C) { 519 assert(C.kind == CXCursor_ObjCProtocolRef); 520 return std::make_pair(static_cast<ObjCProtocolDecl *>(C.data[0]), 521 SourceLocation::getFromRawEncoding( 522 reinterpret_cast<uintptr_t>(C.data[1]))); 523} 524 525CXCursor cxcursor::MakeCursorObjCClassRef(const ObjCInterfaceDecl *Class, 526 SourceLocation Loc, 527 CXTranslationUnit TU) { 528 // 'Class' can be null for invalid code. 529 if (!Class) 530 return MakeCXCursorInvalid(CXCursor_InvalidCode); 531 assert(TU && "Invalid arguments!"); 532 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 533 CXCursor C = { CXCursor_ObjCClassRef, 0, { (void*)Class, RawLoc, TU } }; 534 return C; 535} 536 537std::pair<ObjCInterfaceDecl *, SourceLocation> 538cxcursor::getCursorObjCClassRef(CXCursor C) { 539 assert(C.kind == CXCursor_ObjCClassRef); 540 return std::make_pair(static_cast<ObjCInterfaceDecl *>(C.data[0]), 541 SourceLocation::getFromRawEncoding( 542 reinterpret_cast<uintptr_t>(C.data[1]))); 543} 544 545CXCursor cxcursor::MakeCursorTypeRef(const TypeDecl *Type, SourceLocation Loc, 546 CXTranslationUnit TU) { 547 assert(Type && TU && "Invalid arguments!"); 548 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 549 CXCursor C = { CXCursor_TypeRef, 0, { (void*)Type, RawLoc, TU } }; 550 return C; 551} 552 553std::pair<TypeDecl *, SourceLocation> 554cxcursor::getCursorTypeRef(CXCursor C) { 555 assert(C.kind == CXCursor_TypeRef); 556 return std::make_pair(static_cast<TypeDecl *>(C.data[0]), 557 SourceLocation::getFromRawEncoding( 558 reinterpret_cast<uintptr_t>(C.data[1]))); 559} 560 561CXCursor cxcursor::MakeCursorTemplateRef(const TemplateDecl *Template, 562 SourceLocation Loc, 563 CXTranslationUnit TU) { 564 assert(Template && TU && "Invalid arguments!"); 565 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 566 CXCursor C = { CXCursor_TemplateRef, 0, { (void*)Template, RawLoc, TU } }; 567 return C; 568} 569 570std::pair<TemplateDecl *, SourceLocation> 571cxcursor::getCursorTemplateRef(CXCursor C) { 572 assert(C.kind == CXCursor_TemplateRef); 573 return std::make_pair(static_cast<TemplateDecl *>(C.data[0]), 574 SourceLocation::getFromRawEncoding( 575 reinterpret_cast<uintptr_t>(C.data[1]))); 576} 577 578CXCursor cxcursor::MakeCursorNamespaceRef(const NamedDecl *NS, 579 SourceLocation Loc, 580 CXTranslationUnit TU) { 581 582 assert(NS && (isa<NamespaceDecl>(NS) || isa<NamespaceAliasDecl>(NS)) && TU && 583 "Invalid arguments!"); 584 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 585 CXCursor C = { CXCursor_NamespaceRef, 0, { (void*)NS, RawLoc, TU } }; 586 return C; 587} 588 589std::pair<NamedDecl *, SourceLocation> 590cxcursor::getCursorNamespaceRef(CXCursor C) { 591 assert(C.kind == CXCursor_NamespaceRef); 592 return std::make_pair(static_cast<NamedDecl *>(C.data[0]), 593 SourceLocation::getFromRawEncoding( 594 reinterpret_cast<uintptr_t>(C.data[1]))); 595} 596 597CXCursor cxcursor::MakeCursorVariableRef(const VarDecl *Var, SourceLocation Loc, 598 CXTranslationUnit TU) { 599 600 assert(Var && TU && "Invalid arguments!"); 601 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 602 CXCursor C = { CXCursor_VariableRef, 0, { (void*)Var, RawLoc, TU } }; 603 return C; 604} 605 606std::pair<VarDecl *, SourceLocation> 607cxcursor::getCursorVariableRef(CXCursor C) { 608 assert(C.kind == CXCursor_VariableRef); 609 return std::make_pair(static_cast<VarDecl *>(C.data[0]), 610 SourceLocation::getFromRawEncoding( 611 reinterpret_cast<uintptr_t>(C.data[1]))); 612} 613 614CXCursor cxcursor::MakeCursorMemberRef(const FieldDecl *Field, SourceLocation Loc, 615 CXTranslationUnit TU) { 616 617 assert(Field && TU && "Invalid arguments!"); 618 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 619 CXCursor C = { CXCursor_MemberRef, 0, { (void*)Field, RawLoc, TU } }; 620 return C; 621} 622 623std::pair<FieldDecl *, SourceLocation> 624cxcursor::getCursorMemberRef(CXCursor C) { 625 assert(C.kind == CXCursor_MemberRef); 626 return std::make_pair(static_cast<FieldDecl *>(C.data[0]), 627 SourceLocation::getFromRawEncoding( 628 reinterpret_cast<uintptr_t>(C.data[1]))); 629} 630 631CXCursor cxcursor::MakeCursorCXXBaseSpecifier(const CXXBaseSpecifier *B, 632 CXTranslationUnit TU){ 633 CXCursor C = { CXCursor_CXXBaseSpecifier, 0, { (void*)B, 0, TU } }; 634 return C; 635} 636 637CXXBaseSpecifier *cxcursor::getCursorCXXBaseSpecifier(CXCursor C) { 638 assert(C.kind == CXCursor_CXXBaseSpecifier); 639 return static_cast<CXXBaseSpecifier*>(C.data[0]); 640} 641 642CXCursor cxcursor::MakePreprocessingDirectiveCursor(SourceRange Range, 643 CXTranslationUnit TU) { 644 CXCursor C = { CXCursor_PreprocessingDirective, 0, 645 { reinterpret_cast<void *>(Range.getBegin().getRawEncoding()), 646 reinterpret_cast<void *>(Range.getEnd().getRawEncoding()), 647 TU } 648 }; 649 return C; 650} 651 652SourceRange cxcursor::getCursorPreprocessingDirective(CXCursor C) { 653 assert(C.kind == CXCursor_PreprocessingDirective); 654 SourceRange Range = SourceRange(SourceLocation::getFromRawEncoding( 655 reinterpret_cast<uintptr_t> (C.data[0])), 656 SourceLocation::getFromRawEncoding( 657 reinterpret_cast<uintptr_t> (C.data[1]))); 658 ASTUnit *TU = getCursorASTUnit(C); 659 return TU->mapRangeFromPreamble(Range); 660} 661 662CXCursor cxcursor::MakeMacroDefinitionCursor(MacroDefinition *MI, 663 CXTranslationUnit TU) { 664 CXCursor C = { CXCursor_MacroDefinition, 0, { MI, 0, TU } }; 665 return C; 666} 667 668MacroDefinition *cxcursor::getCursorMacroDefinition(CXCursor C) { 669 assert(C.kind == CXCursor_MacroDefinition); 670 return static_cast<MacroDefinition *>(C.data[0]); 671} 672 673CXCursor cxcursor::MakeMacroExpansionCursor(MacroExpansion *MI, 674 CXTranslationUnit TU) { 675 CXCursor C = { CXCursor_MacroExpansion, 0, { MI, 0, TU } }; 676 return C; 677} 678 679MacroExpansion *cxcursor::getCursorMacroExpansion(CXCursor C) { 680 assert(C.kind == CXCursor_MacroExpansion); 681 return static_cast<MacroExpansion *>(C.data[0]); 682} 683 684CXCursor cxcursor::MakeInclusionDirectiveCursor(InclusionDirective *ID, 685 CXTranslationUnit TU) { 686 CXCursor C = { CXCursor_InclusionDirective, 0, { ID, 0, TU } }; 687 return C; 688} 689 690InclusionDirective *cxcursor::getCursorInclusionDirective(CXCursor C) { 691 assert(C.kind == CXCursor_InclusionDirective); 692 return static_cast<InclusionDirective *>(C.data[0]); 693} 694 695CXCursor cxcursor::MakeCursorLabelRef(LabelStmt *Label, SourceLocation Loc, 696 CXTranslationUnit TU) { 697 698 assert(Label && TU && "Invalid arguments!"); 699 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 700 CXCursor C = { CXCursor_LabelRef, 0, { Label, RawLoc, TU } }; 701 return C; 702} 703 704std::pair<LabelStmt*, SourceLocation> 705cxcursor::getCursorLabelRef(CXCursor C) { 706 assert(C.kind == CXCursor_LabelRef); 707 return std::make_pair(static_cast<LabelStmt *>(C.data[0]), 708 SourceLocation::getFromRawEncoding( 709 reinterpret_cast<uintptr_t>(C.data[1]))); 710} 711 712CXCursor cxcursor::MakeCursorOverloadedDeclRef(OverloadExpr *E, 713 CXTranslationUnit TU) { 714 assert(E && TU && "Invalid arguments!"); 715 OverloadedDeclRefStorage Storage(E); 716 void *RawLoc = reinterpret_cast<void *>(E->getNameLoc().getRawEncoding()); 717 CXCursor C = { 718 CXCursor_OverloadedDeclRef, 0, 719 { Storage.getOpaqueValue(), RawLoc, TU } 720 }; 721 return C; 722} 723 724CXCursor cxcursor::MakeCursorOverloadedDeclRef(Decl *D, 725 SourceLocation Loc, 726 CXTranslationUnit TU) { 727 assert(D && TU && "Invalid arguments!"); 728 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 729 OverloadedDeclRefStorage Storage(D); 730 CXCursor C = { 731 CXCursor_OverloadedDeclRef, 0, 732 { Storage.getOpaqueValue(), RawLoc, TU } 733 }; 734 return C; 735} 736 737CXCursor cxcursor::MakeCursorOverloadedDeclRef(TemplateName Name, 738 SourceLocation Loc, 739 CXTranslationUnit TU) { 740 assert(Name.getAsOverloadedTemplate() && TU && "Invalid arguments!"); 741 void *RawLoc = reinterpret_cast<void *>(Loc.getRawEncoding()); 742 OverloadedDeclRefStorage Storage(Name.getAsOverloadedTemplate()); 743 CXCursor C = { 744 CXCursor_OverloadedDeclRef, 0, 745 { Storage.getOpaqueValue(), RawLoc, TU } 746 }; 747 return C; 748} 749 750std::pair<cxcursor::OverloadedDeclRefStorage, SourceLocation> 751cxcursor::getCursorOverloadedDeclRef(CXCursor C) { 752 assert(C.kind == CXCursor_OverloadedDeclRef); 753 return std::make_pair(OverloadedDeclRefStorage::getFromOpaqueValue(C.data[0]), 754 SourceLocation::getFromRawEncoding( 755 reinterpret_cast<uintptr_t>(C.data[1]))); 756} 757 758Decl *cxcursor::getCursorDecl(CXCursor Cursor) { 759 return (Decl *)Cursor.data[0]; 760} 761 762Expr *cxcursor::getCursorExpr(CXCursor Cursor) { 763 return dyn_cast_or_null<Expr>(getCursorStmt(Cursor)); 764} 765 766Stmt *cxcursor::getCursorStmt(CXCursor Cursor) { 767 if (Cursor.kind == CXCursor_ObjCSuperClassRef || 768 Cursor.kind == CXCursor_ObjCProtocolRef || 769 Cursor.kind == CXCursor_ObjCClassRef) 770 return 0; 771 772 return (Stmt *)Cursor.data[1]; 773} 774 775Attr *cxcursor::getCursorAttr(CXCursor Cursor) { 776 return (Attr *)Cursor.data[1]; 777} 778 779Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) { 780 return (Decl *)Cursor.data[0]; 781} 782 783ASTContext &cxcursor::getCursorContext(CXCursor Cursor) { 784 return getCursorASTUnit(Cursor)->getASTContext(); 785} 786 787ASTUnit *cxcursor::getCursorASTUnit(CXCursor Cursor) { 788 CXTranslationUnit TU = static_cast<CXTranslationUnit>(Cursor.data[2]); 789 if (!TU) 790 return 0; 791 return static_cast<ASTUnit *>(TU->TUData); 792} 793 794CXTranslationUnit cxcursor::getCursorTU(CXCursor Cursor) { 795 return static_cast<CXTranslationUnit>(Cursor.data[2]); 796} 797 798static void CollectOverriddenMethodsRecurse(CXTranslationUnit TU, 799 ObjCContainerDecl *Container, 800 ObjCMethodDecl *Method, 801 SmallVectorImpl<CXCursor> &Methods, 802 bool MovedToSuper) { 803 if (!Container) 804 return; 805 806 // In categories look for overriden methods from protocols. A method from 807 // category is not "overriden" since it is considered as the "same" method 808 // (same USR) as the one from the interface. 809 if (ObjCCategoryDecl *Category = dyn_cast<ObjCCategoryDecl>(Container)) { 810 // Check whether we have a matching method at this category but only if we 811 // are at the super class level. 812 if (MovedToSuper) 813 if (ObjCMethodDecl * 814 Overridden = Container->getMethod(Method->getSelector(), 815 Method->isInstanceMethod())) 816 if (Method != Overridden) { 817 // We found an override at this category; there is no need to look 818 // into its protocols. 819 Methods.push_back(MakeCXCursor(Overridden, TU)); 820 return; 821 } 822 823 for (ObjCCategoryDecl::protocol_iterator P = Category->protocol_begin(), 824 PEnd = Category->protocol_end(); 825 P != PEnd; ++P) 826 CollectOverriddenMethodsRecurse(TU, *P, Method, Methods, MovedToSuper); 827 return; 828 } 829 830 // Check whether we have a matching method at this level. 831 if (ObjCMethodDecl *Overridden = Container->getMethod(Method->getSelector(), 832 Method->isInstanceMethod())) 833 if (Method != Overridden) { 834 // We found an override at this level; there is no need to look 835 // into other protocols or categories. 836 Methods.push_back(MakeCXCursor(Overridden, TU)); 837 return; 838 } 839 840 if (ObjCProtocolDecl *Protocol = dyn_cast<ObjCProtocolDecl>(Container)) { 841 for (ObjCProtocolDecl::protocol_iterator P = Protocol->protocol_begin(), 842 PEnd = Protocol->protocol_end(); 843 P != PEnd; ++P) 844 CollectOverriddenMethodsRecurse(TU, *P, Method, Methods, MovedToSuper); 845 } 846 847 if (ObjCInterfaceDecl *Interface = dyn_cast<ObjCInterfaceDecl>(Container)) { 848 for (ObjCInterfaceDecl::protocol_iterator P = Interface->protocol_begin(), 849 PEnd = Interface->protocol_end(); 850 P != PEnd; ++P) 851 CollectOverriddenMethodsRecurse(TU, *P, Method, Methods, MovedToSuper); 852 853 for (ObjCCategoryDecl *Category = Interface->getCategoryList(); 854 Category; Category = Category->getNextClassCategory()) 855 CollectOverriddenMethodsRecurse(TU, Category, Method, Methods, 856 MovedToSuper); 857 858 if (ObjCInterfaceDecl *Super = Interface->getSuperClass()) 859 return CollectOverriddenMethodsRecurse(TU, Super, Method, Methods, 860 /*MovedToSuper=*/true); 861 } 862} 863 864static inline void CollectOverriddenMethods(CXTranslationUnit TU, 865 ObjCContainerDecl *Container, 866 ObjCMethodDecl *Method, 867 SmallVectorImpl<CXCursor> &Methods) { 868 CollectOverriddenMethodsRecurse(TU, Container, Method, Methods, 869 /*MovedToSuper=*/false); 870} 871 872static void collectOverriddenMethodsSlow(CXTranslationUnit TU, 873 ObjCMethodDecl *Method, 874 SmallVectorImpl<CXCursor> &overridden) { 875 assert(Method->isOverriding()); 876 877 if (ObjCProtocolDecl * 878 ProtD = dyn_cast<ObjCProtocolDecl>(Method->getDeclContext())) { 879 CollectOverriddenMethods(TU, ProtD, Method, overridden); 880 881 } else if (ObjCImplDecl * 882 IMD = dyn_cast<ObjCImplDecl>(Method->getDeclContext())) { 883 ObjCInterfaceDecl *ID = IMD->getClassInterface(); 884 if (!ID) 885 return; 886 // Start searching for overridden methods using the method from the 887 // interface as starting point. 888 if (ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), 889 Method->isInstanceMethod())) 890 Method = IFaceMeth; 891 CollectOverriddenMethods(TU, ID, Method, overridden); 892 893 } else if (ObjCCategoryDecl * 894 CatD = dyn_cast<ObjCCategoryDecl>(Method->getDeclContext())) { 895 ObjCInterfaceDecl *ID = CatD->getClassInterface(); 896 if (!ID) 897 return; 898 // Start searching for overridden methods using the method from the 899 // interface as starting point. 900 if (ObjCMethodDecl *IFaceMeth = ID->getMethod(Method->getSelector(), 901 Method->isInstanceMethod())) 902 Method = IFaceMeth; 903 CollectOverriddenMethods(TU, ID, Method, overridden); 904 905 } else { 906 CollectOverriddenMethods(TU, 907 dyn_cast_or_null<ObjCContainerDecl>(Method->getDeclContext()), 908 Method, overridden); 909 } 910} 911 912static void collectOnCategoriesAfterLocation(SourceLocation Loc, 913 ObjCInterfaceDecl *Class, 914 CXTranslationUnit TU, 915 ObjCMethodDecl *Method, 916 SmallVectorImpl<CXCursor> &Methods) { 917 if (!Class) 918 return; 919 920 SourceManager &SM = static_cast<ASTUnit *>(TU->TUData)->getSourceManager(); 921 for (ObjCCategoryDecl *Category = Class->getCategoryList(); 922 Category; Category = Category->getNextClassCategory()) 923 if (SM.isBeforeInTranslationUnit(Loc, Category->getLocation())) 924 CollectOverriddenMethodsRecurse(TU, Category, Method, Methods, true); 925 926 collectOnCategoriesAfterLocation(Loc, Class->getSuperClass(), TU, 927 Method, Methods); 928} 929 930/// \brief Faster collection that is enabled when ObjCMethodDecl::isOverriding() 931/// returns false. 932/// You'd think that in that case there are no overrides but categories can 933/// "introduce" new overridden methods that are missed by Sema because the 934/// overrides lookup that it does for methods, inside implementations, will 935/// stop at the interface level (if there is a method there) and not look 936/// further in super classes. 937static void collectOverriddenMethodsFast(CXTranslationUnit TU, 938 ObjCMethodDecl *Method, 939 SmallVectorImpl<CXCursor> &Methods) { 940 assert(!Method->isOverriding()); 941 942 ObjCContainerDecl *ContD = cast<ObjCContainerDecl>(Method->getDeclContext()); 943 if (isa<ObjCInterfaceDecl>(ContD) || isa<ObjCProtocolDecl>(ContD)) 944 return; 945 ObjCInterfaceDecl *Class = Method->getClassInterface(); 946 if (!Class) 947 return; 948 949 collectOnCategoriesAfterLocation(Class->getLocation(), Class->getSuperClass(), 950 TU, Method, Methods); 951} 952 953void cxcursor::getOverriddenCursors(CXCursor cursor, 954 SmallVectorImpl<CXCursor> &overridden) { 955 assert(clang_isDeclaration(cursor.kind)); 956 Decl *D = getCursorDecl(cursor); 957 if (!D) 958 return; 959 960 // Handle C++ member functions. 961 CXTranslationUnit TU = getCursorTU(cursor); 962 if (CXXMethodDecl *CXXMethod = dyn_cast<CXXMethodDecl>(D)) { 963 for (CXXMethodDecl::method_iterator 964 M = CXXMethod->begin_overridden_methods(), 965 MEnd = CXXMethod->end_overridden_methods(); 966 M != MEnd; ++M) 967 overridden.push_back(MakeCXCursor(const_cast<CXXMethodDecl*>(*M), TU)); 968 return; 969 } 970 971 ObjCMethodDecl *Method = dyn_cast<ObjCMethodDecl>(D); 972 if (!Method) 973 return; 974 975 if (Method->isRedeclaration()) { 976 Method = cast<ObjCContainerDecl>(Method->getDeclContext())-> 977 getMethod(Method->getSelector(), Method->isInstanceMethod()); 978 } 979 980 if (!Method->isOverriding()) { 981 collectOverriddenMethodsFast(TU, Method, overridden); 982 } else { 983 collectOverriddenMethodsSlow(TU, Method, overridden); 984 assert(!overridden.empty() && 985 "ObjCMethodDecl's overriding bit is not as expected"); 986 } 987} 988 989std::pair<int, SourceLocation> 990cxcursor::getSelectorIdentifierIndexAndLoc(CXCursor cursor) { 991 if (cursor.kind == CXCursor_ObjCMessageExpr) { 992 if (cursor.xdata != -1) 993 return std::make_pair(cursor.xdata, 994 cast<ObjCMessageExpr>(getCursorExpr(cursor)) 995 ->getSelectorLoc(cursor.xdata)); 996 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl || 997 cursor.kind == CXCursor_ObjCInstanceMethodDecl) { 998 if (cursor.xdata != -1) 999 return std::make_pair(cursor.xdata, 1000 cast<ObjCMethodDecl>(getCursorDecl(cursor)) 1001 ->getSelectorLoc(cursor.xdata)); 1002 } 1003 1004 return std::make_pair(-1, SourceLocation()); 1005} 1006 1007CXCursor cxcursor::getSelectorIdentifierCursor(int SelIdx, CXCursor cursor) { 1008 CXCursor newCursor = cursor; 1009 1010 if (cursor.kind == CXCursor_ObjCMessageExpr) { 1011 if (SelIdx == -1 || 1012 unsigned(SelIdx) >= cast<ObjCMessageExpr>(getCursorExpr(cursor)) 1013 ->getNumSelectorLocs()) 1014 newCursor.xdata = -1; 1015 else 1016 newCursor.xdata = SelIdx; 1017 } else if (cursor.kind == CXCursor_ObjCClassMethodDecl || 1018 cursor.kind == CXCursor_ObjCInstanceMethodDecl) { 1019 if (SelIdx == -1 || 1020 unsigned(SelIdx) >= cast<ObjCMethodDecl>(getCursorDecl(cursor)) 1021 ->getNumSelectorLocs()) 1022 newCursor.xdata = -1; 1023 else 1024 newCursor.xdata = SelIdx; 1025 } 1026 1027 return newCursor; 1028} 1029 1030CXCursor cxcursor::getTypeRefCursor(CXCursor cursor) { 1031 if (cursor.kind != CXCursor_CallExpr) 1032 return cursor; 1033 1034 if (cursor.xdata == 0) 1035 return cursor; 1036 1037 Expr *E = getCursorExpr(cursor); 1038 TypeSourceInfo *Type = 0; 1039 if (CXXUnresolvedConstructExpr * 1040 UnCtor = dyn_cast<CXXUnresolvedConstructExpr>(E)) { 1041 Type = UnCtor->getTypeSourceInfo(); 1042 } else if (CXXTemporaryObjectExpr *Tmp = dyn_cast<CXXTemporaryObjectExpr>(E)){ 1043 Type = Tmp->getTypeSourceInfo(); 1044 } 1045 1046 if (!Type) 1047 return cursor; 1048 1049 CXTranslationUnit TU = getCursorTU(cursor); 1050 QualType Ty = Type->getType(); 1051 TypeLoc TL = Type->getTypeLoc(); 1052 SourceLocation Loc = TL.getBeginLoc(); 1053 1054 if (const ElaboratedType *ElabT = Ty->getAs<ElaboratedType>()) { 1055 Ty = ElabT->getNamedType(); 1056 ElaboratedTypeLoc ElabTL = cast<ElaboratedTypeLoc>(TL); 1057 Loc = ElabTL.getNamedTypeLoc().getBeginLoc(); 1058 } 1059 1060 if (const TypedefType *Typedef = Ty->getAs<TypedefType>()) 1061 return MakeCursorTypeRef(Typedef->getDecl(), Loc, TU); 1062 if (const TagType *Tag = Ty->getAs<TagType>()) 1063 return MakeCursorTypeRef(Tag->getDecl(), Loc, TU); 1064 if (const TemplateTypeParmType *TemplP = Ty->getAs<TemplateTypeParmType>()) 1065 return MakeCursorTypeRef(TemplP->getDecl(), Loc, TU); 1066 1067 return cursor; 1068} 1069 1070bool cxcursor::operator==(CXCursor X, CXCursor Y) { 1071 return X.kind == Y.kind && X.data[0] == Y.data[0] && X.data[1] == Y.data[1] && 1072 X.data[2] == Y.data[2]; 1073} 1074 1075// FIXME: Remove once we can model DeclGroups and their appropriate ranges 1076// properly in the ASTs. 1077bool cxcursor::isFirstInDeclGroup(CXCursor C) { 1078 assert(clang_isDeclaration(C.kind)); 1079 return ((uintptr_t) (C.data[1])) != 0; 1080} 1081 1082//===----------------------------------------------------------------------===// 1083// libclang CXCursor APIs 1084//===----------------------------------------------------------------------===// 1085 1086extern "C" { 1087 1088int clang_Cursor_isNull(CXCursor cursor) { 1089 return clang_equalCursors(cursor, clang_getNullCursor()); 1090} 1091 1092CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) { 1093 return getCursorTU(cursor); 1094} 1095 1096int clang_Cursor_getNumArguments(CXCursor C) { 1097 if (clang_isDeclaration(C.kind)) { 1098 Decl *D = cxcursor::getCursorDecl(C); 1099 if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) 1100 return MD->param_size(); 1101 if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) 1102 return FD->param_size(); 1103 } 1104 1105 return -1; 1106} 1107 1108CXCursor clang_Cursor_getArgument(CXCursor C, unsigned i) { 1109 if (clang_isDeclaration(C.kind)) { 1110 Decl *D = cxcursor::getCursorDecl(C); 1111 if (ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D)) { 1112 if (i < MD->param_size()) 1113 return cxcursor::MakeCXCursor(MD->param_begin()[i], 1114 cxcursor::getCursorTU(C)); 1115 } else if (FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) { 1116 if (i < FD->param_size()) 1117 return cxcursor::MakeCXCursor(FD->param_begin()[i], 1118 cxcursor::getCursorTU(C)); 1119 } 1120 } 1121 1122 return clang_getNullCursor(); 1123} 1124 1125} // end: extern "C" 1126 1127//===----------------------------------------------------------------------===// 1128// CXCursorSet. 1129//===----------------------------------------------------------------------===// 1130 1131typedef llvm::DenseMap<CXCursor, unsigned> CXCursorSet_Impl; 1132 1133static inline CXCursorSet packCXCursorSet(CXCursorSet_Impl *setImpl) { 1134 return (CXCursorSet) setImpl; 1135} 1136static inline CXCursorSet_Impl *unpackCXCursorSet(CXCursorSet set) { 1137 return (CXCursorSet_Impl*) set; 1138} 1139namespace llvm { 1140template<> struct DenseMapInfo<CXCursor> { 1141public: 1142 static inline CXCursor getEmptyKey() { 1143 return MakeCXCursorInvalid(CXCursor_InvalidFile); 1144 } 1145 static inline CXCursor getTombstoneKey() { 1146 return MakeCXCursorInvalid(CXCursor_NoDeclFound); 1147 } 1148 static inline unsigned getHashValue(const CXCursor &cursor) { 1149 return llvm::DenseMapInfo<std::pair<void*,void*> > 1150 ::getHashValue(std::make_pair(cursor.data[0], cursor.data[1])); 1151 } 1152 static inline bool isEqual(const CXCursor &x, const CXCursor &y) { 1153 return x.kind == y.kind && 1154 x.data[0] == y.data[0] && 1155 x.data[1] == y.data[1]; 1156 } 1157}; 1158} 1159 1160extern "C" { 1161CXCursorSet clang_createCXCursorSet() { 1162 return packCXCursorSet(new CXCursorSet_Impl()); 1163} 1164 1165void clang_disposeCXCursorSet(CXCursorSet set) { 1166 delete unpackCXCursorSet(set); 1167} 1168 1169unsigned clang_CXCursorSet_contains(CXCursorSet set, CXCursor cursor) { 1170 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 1171 if (!setImpl) 1172 return 0; 1173 return setImpl->find(cursor) == setImpl->end(); 1174} 1175 1176unsigned clang_CXCursorSet_insert(CXCursorSet set, CXCursor cursor) { 1177 // Do not insert invalid cursors into the set. 1178 if (cursor.kind >= CXCursor_FirstInvalid && 1179 cursor.kind <= CXCursor_LastInvalid) 1180 return 1; 1181 1182 CXCursorSet_Impl *setImpl = unpackCXCursorSet(set); 1183 if (!setImpl) 1184 return 1; 1185 unsigned &entry = (*setImpl)[cursor]; 1186 unsigned flag = entry == 0 ? 1 : 0; 1187 entry = 1; 1188 return flag; 1189} 1190 1191CXCompletionString clang_getCursorCompletionString(CXCursor cursor) { 1192 enum CXCursorKind kind = clang_getCursorKind(cursor); 1193 if (clang_isDeclaration(kind)) { 1194 Decl *decl = getCursorDecl(cursor); 1195 if (NamedDecl *namedDecl = dyn_cast_or_null<NamedDecl>(decl)) { 1196 ASTUnit *unit = getCursorASTUnit(cursor); 1197 CodeCompletionResult Result(namedDecl); 1198 CodeCompletionString *String 1199 = Result.CreateCodeCompletionString(unit->getASTContext(), 1200 unit->getPreprocessor(), 1201 unit->getCodeCompletionTUInfo().getAllocator(), 1202 unit->getCodeCompletionTUInfo(), 1203 true); 1204 return String; 1205 } 1206 } 1207 else if (kind == CXCursor_MacroDefinition) { 1208 MacroDefinition *definition = getCursorMacroDefinition(cursor); 1209 const IdentifierInfo *MacroInfo = definition->getName(); 1210 ASTUnit *unit = getCursorASTUnit(cursor); 1211 CodeCompletionResult Result(const_cast<IdentifierInfo *>(MacroInfo)); 1212 CodeCompletionString *String 1213 = Result.CreateCodeCompletionString(unit->getASTContext(), 1214 unit->getPreprocessor(), 1215 unit->getCodeCompletionTUInfo().getAllocator(), 1216 unit->getCodeCompletionTUInfo(), 1217 false); 1218 return String; 1219 } 1220 return NULL; 1221} 1222} // end: extern C. 1223 1224namespace { 1225 struct OverridenCursorsPool { 1226 typedef llvm::SmallVector<CXCursor, 2> CursorVec; 1227 std::vector<CursorVec*> AllCursors; 1228 std::vector<CursorVec*> AvailableCursors; 1229 1230 ~OverridenCursorsPool() { 1231 for (std::vector<CursorVec*>::iterator I = AllCursors.begin(), 1232 E = AllCursors.end(); I != E; ++I) { 1233 delete *I; 1234 } 1235 } 1236 }; 1237} 1238 1239void *cxcursor::createOverridenCXCursorsPool() { 1240 return new OverridenCursorsPool(); 1241} 1242 1243void cxcursor::disposeOverridenCXCursorsPool(void *pool) { 1244 delete static_cast<OverridenCursorsPool*>(pool); 1245} 1246 1247extern "C" { 1248void clang_getOverriddenCursors(CXCursor cursor, 1249 CXCursor **overridden, 1250 unsigned *num_overridden) { 1251 if (overridden) 1252 *overridden = 0; 1253 if (num_overridden) 1254 *num_overridden = 0; 1255 1256 CXTranslationUnit TU = cxcursor::getCursorTU(cursor); 1257 1258 if (!overridden || !num_overridden || !TU) 1259 return; 1260 1261 if (!clang_isDeclaration(cursor.kind)) 1262 return; 1263 1264 OverridenCursorsPool &pool = 1265 *static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool); 1266 1267 OverridenCursorsPool::CursorVec *Vec = 0; 1268 1269 if (!pool.AvailableCursors.empty()) { 1270 Vec = pool.AvailableCursors.back(); 1271 pool.AvailableCursors.pop_back(); 1272 } 1273 else { 1274 Vec = new OverridenCursorsPool::CursorVec(); 1275 pool.AllCursors.push_back(Vec); 1276 } 1277 1278 // Clear out the vector, but don't free the memory contents. This 1279 // reduces malloc() traffic. 1280 Vec->clear(); 1281 1282 // Use the first entry to contain a back reference to the vector. 1283 // This is a complete hack. 1284 CXCursor backRefCursor = MakeCXCursorInvalid(CXCursor_InvalidFile, TU); 1285 backRefCursor.data[0] = Vec; 1286 assert(cxcursor::getCursorTU(backRefCursor) == TU); 1287 Vec->push_back(backRefCursor); 1288 1289 // Get the overriden cursors. 1290 cxcursor::getOverriddenCursors(cursor, *Vec); 1291 1292 // Did we get any overriden cursors? If not, return Vec to the pool 1293 // of available cursor vectors. 1294 if (Vec->size() == 1) { 1295 pool.AvailableCursors.push_back(Vec); 1296 return; 1297 } 1298 1299 // Now tell the caller about the overriden cursors. 1300 assert(Vec->size() > 1); 1301 *overridden = &((*Vec)[1]); 1302 *num_overridden = Vec->size() - 1; 1303} 1304 1305void clang_disposeOverriddenCursors(CXCursor *overridden) { 1306 if (!overridden) 1307 return; 1308 1309 // Use pointer arithmetic to get back the first faux entry 1310 // which has a back-reference to the TU and the vector. 1311 --overridden; 1312 OverridenCursorsPool::CursorVec *Vec = 1313 static_cast<OverridenCursorsPool::CursorVec*>(overridden->data[0]); 1314 CXTranslationUnit TU = getCursorTU(*overridden); 1315 1316 assert(Vec && TU); 1317 1318 OverridenCursorsPool &pool = 1319 *static_cast<OverridenCursorsPool*>(TU->OverridenCursorsPool); 1320 1321 pool.AvailableCursors.push_back(Vec); 1322} 1323 1324int clang_Cursor_isDynamicCall(CXCursor C) { 1325 const Expr *E = 0; 1326 if (clang_isExpression(C.kind)) 1327 E = getCursorExpr(C); 1328 if (!E) 1329 return 0; 1330 1331 if (const ObjCMessageExpr *MsgE = dyn_cast<ObjCMessageExpr>(E)) 1332 return MsgE->getReceiverKind() == ObjCMessageExpr::Instance; 1333 1334 const MemberExpr *ME = 0; 1335 if (isa<MemberExpr>(E)) 1336 ME = cast<MemberExpr>(E); 1337 else if (const CallExpr *CE = dyn_cast<CallExpr>(E)) 1338 ME = dyn_cast_or_null<MemberExpr>(CE->getCallee()); 1339 1340 if (ME) { 1341 if (const CXXMethodDecl * 1342 MD = dyn_cast_or_null<CXXMethodDecl>(ME->getMemberDecl())) 1343 return MD->isVirtual() && !ME->hasQualifier(); 1344 } 1345 1346 return 0; 1347} 1348 1349} // end: extern "C" 1350