CIndex.cpp revision 1f60d9ea523fc321d811fe880ba9a1ec74fa8f9b
1//===- CIndex.cpp - Clang-C Source Indexing Library -----------------------===// 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 implements the main API hooks in the Clang-C Source Indexing 11// library. 12// 13//===----------------------------------------------------------------------===// 14 15#include "CIndexer.h" 16#include "CXCursor.h" 17#include "CXType.h" 18#include "CXSourceLocation.h" 19#include "CIndexDiagnostic.h" 20 21#include "clang/Basic/Version.h" 22 23#include "clang/AST/DeclVisitor.h" 24#include "clang/AST/StmtVisitor.h" 25#include "clang/AST/TypeLocVisitor.h" 26#include "clang/Basic/Diagnostic.h" 27#include "clang/Frontend/ASTUnit.h" 28#include "clang/Frontend/CompilerInstance.h" 29#include "clang/Frontend/FrontendDiagnostic.h" 30#include "clang/Lex/Lexer.h" 31#include "clang/Lex/PreprocessingRecord.h" 32#include "clang/Lex/Preprocessor.h" 33#include "llvm/ADT/STLExtras.h" 34#include "llvm/Support/CrashRecoveryContext.h" 35#include "llvm/Support/MemoryBuffer.h" 36#include "llvm/Support/Timer.h" 37#include "llvm/System/Program.h" 38#include "llvm/System/Signals.h" 39 40// Needed to define L_TMPNAM on some systems. 41#include <cstdio> 42 43using namespace clang; 44using namespace clang::cxcursor; 45using namespace clang::cxstring; 46 47//===----------------------------------------------------------------------===// 48// Crash Reporting. 49//===----------------------------------------------------------------------===// 50 51#ifdef USE_CRASHTRACER 52#include "clang/Analysis/Support/SaveAndRestore.h" 53// Integrate with crash reporter. 54static const char *__crashreporter_info__ = 0; 55asm(".desc ___crashreporter_info__, 0x10"); 56#define NUM_CRASH_STRINGS 32 57static unsigned crashtracer_counter = 0; 58static unsigned crashtracer_counter_id[NUM_CRASH_STRINGS] = { 0 }; 59static const char *crashtracer_strings[NUM_CRASH_STRINGS] = { 0 }; 60static const char *agg_crashtracer_strings[NUM_CRASH_STRINGS] = { 0 }; 61 62static unsigned SetCrashTracerInfo(const char *str, 63 llvm::SmallString<1024> &AggStr) { 64 65 unsigned slot = 0; 66 while (crashtracer_strings[slot]) { 67 if (++slot == NUM_CRASH_STRINGS) 68 slot = 0; 69 } 70 crashtracer_strings[slot] = str; 71 crashtracer_counter_id[slot] = ++crashtracer_counter; 72 73 // We need to create an aggregate string because multiple threads 74 // may be in this method at one time. The crash reporter string 75 // will attempt to overapproximate the set of in-flight invocations 76 // of this function. Race conditions can still cause this goal 77 // to not be achieved. 78 { 79 llvm::raw_svector_ostream Out(AggStr); 80 for (unsigned i = 0; i < NUM_CRASH_STRINGS; ++i) 81 if (crashtracer_strings[i]) Out << crashtracer_strings[i] << '\n'; 82 } 83 __crashreporter_info__ = agg_crashtracer_strings[slot] = AggStr.c_str(); 84 return slot; 85} 86 87static void ResetCrashTracerInfo(unsigned slot) { 88 unsigned max_slot = 0; 89 unsigned max_value = 0; 90 91 crashtracer_strings[slot] = agg_crashtracer_strings[slot] = 0; 92 93 for (unsigned i = 0 ; i < NUM_CRASH_STRINGS; ++i) 94 if (agg_crashtracer_strings[i] && 95 crashtracer_counter_id[i] > max_value) { 96 max_slot = i; 97 max_value = crashtracer_counter_id[i]; 98 } 99 100 __crashreporter_info__ = agg_crashtracer_strings[max_slot]; 101} 102 103namespace { 104class ArgsCrashTracerInfo { 105 llvm::SmallString<1024> CrashString; 106 llvm::SmallString<1024> AggregateString; 107 unsigned crashtracerSlot; 108public: 109 ArgsCrashTracerInfo(llvm::SmallVectorImpl<const char*> &Args) 110 : crashtracerSlot(0) 111 { 112 { 113 llvm::raw_svector_ostream Out(CrashString); 114 Out << "ClangCIndex [" << getClangFullVersion() << "]" 115 << "[createTranslationUnitFromSourceFile]: clang"; 116 for (llvm::SmallVectorImpl<const char*>::iterator I=Args.begin(), 117 E=Args.end(); I!=E; ++I) 118 Out << ' ' << *I; 119 } 120 crashtracerSlot = SetCrashTracerInfo(CrashString.c_str(), 121 AggregateString); 122 } 123 124 ~ArgsCrashTracerInfo() { 125 ResetCrashTracerInfo(crashtracerSlot); 126 } 127}; 128} 129#endif 130 131/// \brief The result of comparing two source ranges. 132enum RangeComparisonResult { 133 /// \brief Either the ranges overlap or one of the ranges is invalid. 134 RangeOverlap, 135 136 /// \brief The first range ends before the second range starts. 137 RangeBefore, 138 139 /// \brief The first range starts after the second range ends. 140 RangeAfter 141}; 142 143/// \brief Compare two source ranges to determine their relative position in 144/// the translation unit. 145static RangeComparisonResult RangeCompare(SourceManager &SM, 146 SourceRange R1, 147 SourceRange R2) { 148 assert(R1.isValid() && "First range is invalid?"); 149 assert(R2.isValid() && "Second range is invalid?"); 150 if (R1.getEnd() != R2.getBegin() && 151 SM.isBeforeInTranslationUnit(R1.getEnd(), R2.getBegin())) 152 return RangeBefore; 153 if (R2.getEnd() != R1.getBegin() && 154 SM.isBeforeInTranslationUnit(R2.getEnd(), R1.getBegin())) 155 return RangeAfter; 156 return RangeOverlap; 157} 158 159/// \brief Determine if a source location falls within, before, or after a 160/// a given source range. 161static RangeComparisonResult LocationCompare(SourceManager &SM, 162 SourceLocation L, SourceRange R) { 163 assert(R.isValid() && "First range is invalid?"); 164 assert(L.isValid() && "Second range is invalid?"); 165 if (L == R.getBegin() || L == R.getEnd()) 166 return RangeOverlap; 167 if (SM.isBeforeInTranslationUnit(L, R.getBegin())) 168 return RangeBefore; 169 if (SM.isBeforeInTranslationUnit(R.getEnd(), L)) 170 return RangeAfter; 171 return RangeOverlap; 172} 173 174/// \brief Translate a Clang source range into a CIndex source range. 175/// 176/// Clang internally represents ranges where the end location points to the 177/// start of the token at the end. However, for external clients it is more 178/// useful to have a CXSourceRange be a proper half-open interval. This routine 179/// does the appropriate translation. 180CXSourceRange cxloc::translateSourceRange(const SourceManager &SM, 181 const LangOptions &LangOpts, 182 const CharSourceRange &R) { 183 // We want the last character in this location, so we will adjust the 184 // location accordingly. 185 // FIXME: How do do this with a macro instantiation location? 186 SourceLocation EndLoc = R.getEnd(); 187 if (R.isTokenRange() && !EndLoc.isInvalid() && EndLoc.isFileID()) { 188 unsigned Length = Lexer::MeasureTokenLength(EndLoc, SM, LangOpts); 189 EndLoc = EndLoc.getFileLocWithOffset(Length); 190 } 191 192 CXSourceRange Result = { { (void *)&SM, (void *)&LangOpts }, 193 R.getBegin().getRawEncoding(), 194 EndLoc.getRawEncoding() }; 195 return Result; 196} 197 198//===----------------------------------------------------------------------===// 199// Cursor visitor. 200//===----------------------------------------------------------------------===// 201 202namespace { 203 204// Cursor visitor. 205class CursorVisitor : public DeclVisitor<CursorVisitor, bool>, 206 public TypeLocVisitor<CursorVisitor, bool>, 207 public StmtVisitor<CursorVisitor, bool> 208{ 209 /// \brief The translation unit we are traversing. 210 ASTUnit *TU; 211 212 /// \brief The parent cursor whose children we are traversing. 213 CXCursor Parent; 214 215 /// \brief The declaration that serves at the parent of any statement or 216 /// expression nodes. 217 Decl *StmtParent; 218 219 /// \brief The visitor function. 220 CXCursorVisitor Visitor; 221 222 /// \brief The opaque client data, to be passed along to the visitor. 223 CXClientData ClientData; 224 225 // MaxPCHLevel - the maximum PCH level of declarations that we will pass on 226 // to the visitor. Declarations with a PCH level greater than this value will 227 // be suppressed. 228 unsigned MaxPCHLevel; 229 230 /// \brief When valid, a source range to which the cursor should restrict 231 /// its search. 232 SourceRange RegionOfInterest; 233 234 using DeclVisitor<CursorVisitor, bool>::Visit; 235 using TypeLocVisitor<CursorVisitor, bool>::Visit; 236 using StmtVisitor<CursorVisitor, bool>::Visit; 237 238 /// \brief Determine whether this particular source range comes before, comes 239 /// after, or overlaps the region of interest. 240 /// 241 /// \param R a half-open source range retrieved from the abstract syntax tree. 242 RangeComparisonResult CompareRegionOfInterest(SourceRange R); 243 244 class SetParentRAII { 245 CXCursor &Parent; 246 Decl *&StmtParent; 247 CXCursor OldParent; 248 249 public: 250 SetParentRAII(CXCursor &Parent, Decl *&StmtParent, CXCursor NewParent) 251 : Parent(Parent), StmtParent(StmtParent), OldParent(Parent) 252 { 253 Parent = NewParent; 254 if (clang_isDeclaration(Parent.kind)) 255 StmtParent = getCursorDecl(Parent); 256 } 257 258 ~SetParentRAII() { 259 Parent = OldParent; 260 if (clang_isDeclaration(Parent.kind)) 261 StmtParent = getCursorDecl(Parent); 262 } 263 }; 264 265public: 266 CursorVisitor(ASTUnit *TU, CXCursorVisitor Visitor, CXClientData ClientData, 267 unsigned MaxPCHLevel, 268 SourceRange RegionOfInterest = SourceRange()) 269 : TU(TU), Visitor(Visitor), ClientData(ClientData), 270 MaxPCHLevel(MaxPCHLevel), RegionOfInterest(RegionOfInterest) 271 { 272 Parent.kind = CXCursor_NoDeclFound; 273 Parent.data[0] = 0; 274 Parent.data[1] = 0; 275 Parent.data[2] = 0; 276 StmtParent = 0; 277 } 278 279 bool Visit(CXCursor Cursor, bool CheckedRegionOfInterest = false); 280 281 std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> 282 getPreprocessedEntities(); 283 284 bool VisitChildren(CXCursor Parent); 285 286 // Declaration visitors 287 bool VisitAttributes(Decl *D); 288 bool VisitBlockDecl(BlockDecl *B); 289 bool VisitCXXRecordDecl(CXXRecordDecl *D); 290 bool VisitDeclContext(DeclContext *DC); 291 bool VisitTranslationUnitDecl(TranslationUnitDecl *D); 292 bool VisitTypedefDecl(TypedefDecl *D); 293 bool VisitTagDecl(TagDecl *D); 294 bool VisitClassTemplateSpecializationDecl(ClassTemplateSpecializationDecl *D); 295 bool VisitClassTemplatePartialSpecializationDecl( 296 ClassTemplatePartialSpecializationDecl *D); 297 bool VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D); 298 bool VisitEnumConstantDecl(EnumConstantDecl *D); 299 bool VisitDeclaratorDecl(DeclaratorDecl *DD); 300 bool VisitFunctionDecl(FunctionDecl *ND); 301 bool VisitFieldDecl(FieldDecl *D); 302 bool VisitVarDecl(VarDecl *); 303 bool VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D); 304 bool VisitFunctionTemplateDecl(FunctionTemplateDecl *D); 305 bool VisitClassTemplateDecl(ClassTemplateDecl *D); 306 bool VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D); 307 bool VisitObjCMethodDecl(ObjCMethodDecl *ND); 308 bool VisitObjCContainerDecl(ObjCContainerDecl *D); 309 bool VisitObjCCategoryDecl(ObjCCategoryDecl *ND); 310 bool VisitObjCProtocolDecl(ObjCProtocolDecl *PID); 311 bool VisitObjCPropertyDecl(ObjCPropertyDecl *PD); 312 bool VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); 313 bool VisitObjCImplDecl(ObjCImplDecl *D); 314 bool VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); 315 bool VisitObjCImplementationDecl(ObjCImplementationDecl *D); 316 // FIXME: ObjCCompatibleAliasDecl requires aliased-class locations. 317 bool VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D); 318 bool VisitObjCClassDecl(ObjCClassDecl *D); 319 bool VisitLinkageSpecDecl(LinkageSpecDecl *D); 320 bool VisitNamespaceDecl(NamespaceDecl *D); 321 bool VisitNamespaceAliasDecl(NamespaceAliasDecl *D); 322 bool VisitUsingDirectiveDecl(UsingDirectiveDecl *D); 323 bool VisitUsingDecl(UsingDecl *D); 324 bool VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D); 325 bool VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D); 326 327 // Name visitor 328 bool VisitDeclarationNameInfo(DeclarationNameInfo Name); 329 bool VisitNestedNameSpecifier(NestedNameSpecifier *NNS, SourceRange Range); 330 331 // Template visitors 332 bool VisitTemplateParameters(const TemplateParameterList *Params); 333 bool VisitTemplateName(TemplateName Name, SourceLocation Loc); 334 bool VisitTemplateArgumentLoc(const TemplateArgumentLoc &TAL); 335 336 // Type visitors 337 bool VisitQualifiedTypeLoc(QualifiedTypeLoc TL); 338 bool VisitBuiltinTypeLoc(BuiltinTypeLoc TL); 339 bool VisitTypedefTypeLoc(TypedefTypeLoc TL); 340 bool VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL); 341 bool VisitTagTypeLoc(TagTypeLoc TL); 342 bool VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL); 343 bool VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL); 344 bool VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL); 345 bool VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL); 346 bool VisitPointerTypeLoc(PointerTypeLoc TL); 347 bool VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL); 348 bool VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL); 349 bool VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL); 350 bool VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL); 351 bool VisitFunctionTypeLoc(FunctionTypeLoc TL, bool SkipResultType = false); 352 bool VisitArrayTypeLoc(ArrayTypeLoc TL); 353 bool VisitTemplateSpecializationTypeLoc(TemplateSpecializationTypeLoc TL); 354 // FIXME: Implement visitors here when the unimplemented TypeLocs get 355 // implemented 356 bool VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL); 357 bool VisitTypeOfTypeLoc(TypeOfTypeLoc TL); 358 359 // Statement visitors 360 bool VisitStmt(Stmt *S); 361 bool VisitDeclStmt(DeclStmt *S); 362 bool VisitGotoStmt(GotoStmt *S); 363 bool VisitIfStmt(IfStmt *S); 364 bool VisitSwitchStmt(SwitchStmt *S); 365 bool VisitCaseStmt(CaseStmt *S); 366 bool VisitWhileStmt(WhileStmt *S); 367 bool VisitForStmt(ForStmt *S); 368 369 // Expression visitors 370 bool VisitDeclRefExpr(DeclRefExpr *E); 371 bool VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E); 372 bool VisitBlockExpr(BlockExpr *B); 373 bool VisitCompoundLiteralExpr(CompoundLiteralExpr *E); 374 bool VisitExplicitCastExpr(ExplicitCastExpr *E); 375 bool VisitObjCMessageExpr(ObjCMessageExpr *E); 376 bool VisitObjCEncodeExpr(ObjCEncodeExpr *E); 377 bool VisitOffsetOfExpr(OffsetOfExpr *E); 378 bool VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E); 379 bool VisitMemberExpr(MemberExpr *E); 380 bool VisitAddrLabelExpr(AddrLabelExpr *E); 381 bool VisitTypesCompatibleExpr(TypesCompatibleExpr *E); 382 bool VisitVAArgExpr(VAArgExpr *E); 383 bool VisitInitListExpr(InitListExpr *E); 384 bool VisitDesignatedInitExpr(DesignatedInitExpr *E); 385 bool VisitCXXTypeidExpr(CXXTypeidExpr *E); 386 bool VisitCXXUuidofExpr(CXXUuidofExpr *E); 387 bool VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) { return false; } 388 bool VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E); 389 bool VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E); 390 bool VisitCXXNewExpr(CXXNewExpr *E); 391 bool VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E); 392 bool VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E); 393 bool VisitOverloadExpr(OverloadExpr *E); 394 bool VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E); 395 bool VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E); 396 bool VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E); 397 bool VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E); 398}; 399 400} // end anonymous namespace 401 402static SourceRange getRawCursorExtent(CXCursor C); 403 404RangeComparisonResult CursorVisitor::CompareRegionOfInterest(SourceRange R) { 405 return RangeCompare(TU->getSourceManager(), R, RegionOfInterest); 406} 407 408/// \brief Visit the given cursor and, if requested by the visitor, 409/// its children. 410/// 411/// \param Cursor the cursor to visit. 412/// 413/// \param CheckRegionOfInterest if true, then the caller already checked that 414/// this cursor is within the region of interest. 415/// 416/// \returns true if the visitation should be aborted, false if it 417/// should continue. 418bool CursorVisitor::Visit(CXCursor Cursor, bool CheckedRegionOfInterest) { 419 if (clang_isInvalid(Cursor.kind)) 420 return false; 421 422 if (clang_isDeclaration(Cursor.kind)) { 423 Decl *D = getCursorDecl(Cursor); 424 assert(D && "Invalid declaration cursor"); 425 if (D->getPCHLevel() > MaxPCHLevel) 426 return false; 427 428 if (D->isImplicit()) 429 return false; 430 } 431 432 // If we have a range of interest, and this cursor doesn't intersect with it, 433 // we're done. 434 if (RegionOfInterest.isValid() && !CheckedRegionOfInterest) { 435 SourceRange Range = getRawCursorExtent(Cursor); 436 if (Range.isInvalid() || CompareRegionOfInterest(Range)) 437 return false; 438 } 439 440 switch (Visitor(Cursor, Parent, ClientData)) { 441 case CXChildVisit_Break: 442 return true; 443 444 case CXChildVisit_Continue: 445 return false; 446 447 case CXChildVisit_Recurse: 448 return VisitChildren(Cursor); 449 } 450 451 return false; 452} 453 454std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> 455CursorVisitor::getPreprocessedEntities() { 456 PreprocessingRecord &PPRec 457 = *TU->getPreprocessor().getPreprocessingRecord(); 458 459 bool OnlyLocalDecls 460 = !TU->isMainFileAST() && TU->getOnlyLocalDecls(); 461 462 // There is no region of interest; we have to walk everything. 463 if (RegionOfInterest.isInvalid()) 464 return std::make_pair(PPRec.begin(OnlyLocalDecls), 465 PPRec.end(OnlyLocalDecls)); 466 467 // Find the file in which the region of interest lands. 468 SourceManager &SM = TU->getSourceManager(); 469 std::pair<FileID, unsigned> Begin 470 = SM.getDecomposedInstantiationLoc(RegionOfInterest.getBegin()); 471 std::pair<FileID, unsigned> End 472 = SM.getDecomposedInstantiationLoc(RegionOfInterest.getEnd()); 473 474 // The region of interest spans files; we have to walk everything. 475 if (Begin.first != End.first) 476 return std::make_pair(PPRec.begin(OnlyLocalDecls), 477 PPRec.end(OnlyLocalDecls)); 478 479 ASTUnit::PreprocessedEntitiesByFileMap &ByFileMap 480 = TU->getPreprocessedEntitiesByFile(); 481 if (ByFileMap.empty()) { 482 // Build the mapping from files to sets of preprocessed entities. 483 for (PreprocessingRecord::iterator E = PPRec.begin(OnlyLocalDecls), 484 EEnd = PPRec.end(OnlyLocalDecls); 485 E != EEnd; ++E) { 486 std::pair<FileID, unsigned> P 487 = SM.getDecomposedInstantiationLoc((*E)->getSourceRange().getBegin()); 488 ByFileMap[P.first].push_back(*E); 489 } 490 } 491 492 return std::make_pair(ByFileMap[Begin.first].begin(), 493 ByFileMap[Begin.first].end()); 494} 495 496/// \brief Visit the children of the given cursor. 497/// 498/// \returns true if the visitation should be aborted, false if it 499/// should continue. 500bool CursorVisitor::VisitChildren(CXCursor Cursor) { 501 if (clang_isReference(Cursor.kind)) { 502 // By definition, references have no children. 503 return false; 504 } 505 506 // Set the Parent field to Cursor, then back to its old value once we're 507 // done. 508 SetParentRAII SetParent(Parent, StmtParent, Cursor); 509 510 if (clang_isDeclaration(Cursor.kind)) { 511 Decl *D = getCursorDecl(Cursor); 512 assert(D && "Invalid declaration cursor"); 513 return VisitAttributes(D) || Visit(D); 514 } 515 516 if (clang_isStatement(Cursor.kind)) 517 return Visit(getCursorStmt(Cursor)); 518 if (clang_isExpression(Cursor.kind)) 519 return Visit(getCursorExpr(Cursor)); 520 521 if (clang_isTranslationUnit(Cursor.kind)) { 522 ASTUnit *CXXUnit = getCursorASTUnit(Cursor); 523 if (!CXXUnit->isMainFileAST() && CXXUnit->getOnlyLocalDecls() && 524 RegionOfInterest.isInvalid()) { 525 for (ASTUnit::top_level_iterator TL = CXXUnit->top_level_begin(), 526 TLEnd = CXXUnit->top_level_end(); 527 TL != TLEnd; ++TL) { 528 if (Visit(MakeCXCursor(*TL, CXXUnit), true)) 529 return true; 530 } 531 } else if (VisitDeclContext( 532 CXXUnit->getASTContext().getTranslationUnitDecl())) 533 return true; 534 535 // Walk the preprocessing record. 536 if (CXXUnit->getPreprocessor().getPreprocessingRecord()) { 537 // FIXME: Once we have the ability to deserialize a preprocessing record, 538 // do so. 539 PreprocessingRecord::iterator E, EEnd; 540 for (llvm::tie(E, EEnd) = getPreprocessedEntities(); E != EEnd; ++E) { 541 if (MacroInstantiation *MI = dyn_cast<MacroInstantiation>(*E)) { 542 if (Visit(MakeMacroInstantiationCursor(MI, CXXUnit))) 543 return true; 544 545 continue; 546 } 547 548 if (MacroDefinition *MD = dyn_cast<MacroDefinition>(*E)) { 549 if (Visit(MakeMacroDefinitionCursor(MD, CXXUnit))) 550 return true; 551 552 continue; 553 } 554 } 555 } 556 return false; 557 } 558 559 // Nothing to visit at the moment. 560 return false; 561} 562 563bool CursorVisitor::VisitBlockDecl(BlockDecl *B) { 564 if (Visit(B->getSignatureAsWritten()->getTypeLoc())) 565 return true; 566 567 if (Stmt *Body = B->getBody()) 568 return Visit(MakeCXCursor(Body, StmtParent, TU)); 569 570 return false; 571} 572 573bool CursorVisitor::VisitDeclContext(DeclContext *DC) { 574 for (DeclContext::decl_iterator 575 I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I) { 576 577 Decl *D = *I; 578 if (D->getLexicalDeclContext() != DC) 579 continue; 580 581 CXCursor Cursor = MakeCXCursor(D, TU); 582 583 if (RegionOfInterest.isValid()) { 584 SourceRange Range = getRawCursorExtent(Cursor); 585 if (Range.isInvalid()) 586 continue; 587 588 switch (CompareRegionOfInterest(Range)) { 589 case RangeBefore: 590 // This declaration comes before the region of interest; skip it. 591 continue; 592 593 case RangeAfter: 594 // This declaration comes after the region of interest; we're done. 595 return false; 596 597 case RangeOverlap: 598 // This declaration overlaps the region of interest; visit it. 599 break; 600 } 601 } 602 603 if (Visit(Cursor, true)) 604 return true; 605 } 606 607 return false; 608} 609 610bool CursorVisitor::VisitTranslationUnitDecl(TranslationUnitDecl *D) { 611 llvm_unreachable("Translation units are visited directly by Visit()"); 612 return false; 613} 614 615bool CursorVisitor::VisitTypedefDecl(TypedefDecl *D) { 616 if (TypeSourceInfo *TSInfo = D->getTypeSourceInfo()) 617 return Visit(TSInfo->getTypeLoc()); 618 619 return false; 620} 621 622bool CursorVisitor::VisitTagDecl(TagDecl *D) { 623 return VisitDeclContext(D); 624} 625 626bool CursorVisitor::VisitClassTemplateSpecializationDecl( 627 ClassTemplateSpecializationDecl *D) { 628 bool ShouldVisitBody = false; 629 switch (D->getSpecializationKind()) { 630 case TSK_Undeclared: 631 case TSK_ImplicitInstantiation: 632 // Nothing to visit 633 return false; 634 635 case TSK_ExplicitInstantiationDeclaration: 636 case TSK_ExplicitInstantiationDefinition: 637 break; 638 639 case TSK_ExplicitSpecialization: 640 ShouldVisitBody = true; 641 break; 642 } 643 644 // Visit the template arguments used in the specialization. 645 if (TypeSourceInfo *SpecType = D->getTypeAsWritten()) { 646 TypeLoc TL = SpecType->getTypeLoc(); 647 if (TemplateSpecializationTypeLoc *TSTLoc 648 = dyn_cast<TemplateSpecializationTypeLoc>(&TL)) { 649 for (unsigned I = 0, N = TSTLoc->getNumArgs(); I != N; ++I) 650 if (VisitTemplateArgumentLoc(TSTLoc->getArgLoc(I))) 651 return true; 652 } 653 } 654 655 if (ShouldVisitBody && VisitCXXRecordDecl(D)) 656 return true; 657 658 return false; 659} 660 661bool CursorVisitor::VisitClassTemplatePartialSpecializationDecl( 662 ClassTemplatePartialSpecializationDecl *D) { 663 // FIXME: Visit the "outer" template parameter lists on the TagDecl 664 // before visiting these template parameters. 665 if (VisitTemplateParameters(D->getTemplateParameters())) 666 return true; 667 668 // Visit the partial specialization arguments. 669 const TemplateArgumentLoc *TemplateArgs = D->getTemplateArgsAsWritten(); 670 for (unsigned I = 0, N = D->getNumTemplateArgsAsWritten(); I != N; ++I) 671 if (VisitTemplateArgumentLoc(TemplateArgs[I])) 672 return true; 673 674 return VisitCXXRecordDecl(D); 675} 676 677bool CursorVisitor::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) { 678 // Visit the default argument. 679 if (D->hasDefaultArgument() && !D->defaultArgumentWasInherited()) 680 if (TypeSourceInfo *DefArg = D->getDefaultArgumentInfo()) 681 if (Visit(DefArg->getTypeLoc())) 682 return true; 683 684 return false; 685} 686 687bool CursorVisitor::VisitEnumConstantDecl(EnumConstantDecl *D) { 688 if (Expr *Init = D->getInitExpr()) 689 return Visit(MakeCXCursor(Init, StmtParent, TU)); 690 return false; 691} 692 693bool CursorVisitor::VisitDeclaratorDecl(DeclaratorDecl *DD) { 694 if (TypeSourceInfo *TSInfo = DD->getTypeSourceInfo()) 695 if (Visit(TSInfo->getTypeLoc())) 696 return true; 697 698 return false; 699} 700 701/// \brief Compare two base or member initializers based on their source order. 702static int CompareCXXBaseOrMemberInitializers(const void* Xp, const void *Yp) { 703 CXXBaseOrMemberInitializer const * const *X 704 = static_cast<CXXBaseOrMemberInitializer const * const *>(Xp); 705 CXXBaseOrMemberInitializer const * const *Y 706 = static_cast<CXXBaseOrMemberInitializer const * const *>(Yp); 707 708 if ((*X)->getSourceOrder() < (*Y)->getSourceOrder()) 709 return -1; 710 else if ((*X)->getSourceOrder() > (*Y)->getSourceOrder()) 711 return 1; 712 else 713 return 0; 714} 715 716bool CursorVisitor::VisitFunctionDecl(FunctionDecl *ND) { 717 if (TypeSourceInfo *TSInfo = ND->getTypeSourceInfo()) { 718 // Visit the function declaration's syntactic components in the order 719 // written. This requires a bit of work. 720 TypeLoc TL = TSInfo->getTypeLoc(); 721 FunctionTypeLoc *FTL = dyn_cast<FunctionTypeLoc>(&TL); 722 723 // If we have a function declared directly (without the use of a typedef), 724 // visit just the return type. Otherwise, just visit the function's type 725 // now. 726 if ((FTL && !isa<CXXConversionDecl>(ND) && Visit(FTL->getResultLoc())) || 727 (!FTL && Visit(TL))) 728 return true; 729 730 // Visit the nested-name-specifier, if present. 731 if (NestedNameSpecifier *Qualifier = ND->getQualifier()) 732 if (VisitNestedNameSpecifier(Qualifier, ND->getQualifierRange())) 733 return true; 734 735 // Visit the declaration name. 736 if (VisitDeclarationNameInfo(ND->getNameInfo())) 737 return true; 738 739 // FIXME: Visit explicitly-specified template arguments! 740 741 // Visit the function parameters, if we have a function type. 742 if (FTL && VisitFunctionTypeLoc(*FTL, true)) 743 return true; 744 745 // FIXME: Attributes? 746 } 747 748 if (ND->isThisDeclarationADefinition()) { 749 if (CXXConstructorDecl *Constructor = dyn_cast<CXXConstructorDecl>(ND)) { 750 // Find the initializers that were written in the source. 751 llvm::SmallVector<CXXBaseOrMemberInitializer *, 4> WrittenInits; 752 for (CXXConstructorDecl::init_iterator I = Constructor->init_begin(), 753 IEnd = Constructor->init_end(); 754 I != IEnd; ++I) { 755 if (!(*I)->isWritten()) 756 continue; 757 758 WrittenInits.push_back(*I); 759 } 760 761 // Sort the initializers in source order 762 llvm::array_pod_sort(WrittenInits.begin(), WrittenInits.end(), 763 &CompareCXXBaseOrMemberInitializers); 764 765 // Visit the initializers in source order 766 for (unsigned I = 0, N = WrittenInits.size(); I != N; ++I) { 767 CXXBaseOrMemberInitializer *Init = WrittenInits[I]; 768 if (Init->isMemberInitializer()) { 769 if (Visit(MakeCursorMemberRef(Init->getMember(), 770 Init->getMemberLocation(), TU))) 771 return true; 772 } else if (TypeSourceInfo *BaseInfo = Init->getBaseClassInfo()) { 773 if (Visit(BaseInfo->getTypeLoc())) 774 return true; 775 } 776 777 // Visit the initializer value. 778 if (Expr *Initializer = Init->getInit()) 779 if (Visit(MakeCXCursor(Initializer, ND, TU))) 780 return true; 781 } 782 } 783 784 if (Visit(MakeCXCursor(ND->getBody(), StmtParent, TU))) 785 return true; 786 } 787 788 return false; 789} 790 791bool CursorVisitor::VisitFieldDecl(FieldDecl *D) { 792 if (VisitDeclaratorDecl(D)) 793 return true; 794 795 if (Expr *BitWidth = D->getBitWidth()) 796 return Visit(MakeCXCursor(BitWidth, StmtParent, TU)); 797 798 return false; 799} 800 801bool CursorVisitor::VisitVarDecl(VarDecl *D) { 802 if (VisitDeclaratorDecl(D)) 803 return true; 804 805 if (Expr *Init = D->getInit()) 806 return Visit(MakeCXCursor(Init, StmtParent, TU)); 807 808 return false; 809} 810 811bool CursorVisitor::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) { 812 if (VisitDeclaratorDecl(D)) 813 return true; 814 815 if (D->hasDefaultArgument() && !D->defaultArgumentWasInherited()) 816 if (Expr *DefArg = D->getDefaultArgument()) 817 return Visit(MakeCXCursor(DefArg, StmtParent, TU)); 818 819 return false; 820} 821 822bool CursorVisitor::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) { 823 // FIXME: Visit the "outer" template parameter lists on the FunctionDecl 824 // before visiting these template parameters. 825 if (VisitTemplateParameters(D->getTemplateParameters())) 826 return true; 827 828 return VisitFunctionDecl(D->getTemplatedDecl()); 829} 830 831bool CursorVisitor::VisitClassTemplateDecl(ClassTemplateDecl *D) { 832 // FIXME: Visit the "outer" template parameter lists on the TagDecl 833 // before visiting these template parameters. 834 if (VisitTemplateParameters(D->getTemplateParameters())) 835 return true; 836 837 return VisitCXXRecordDecl(D->getTemplatedDecl()); 838} 839 840bool CursorVisitor::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) { 841 if (VisitTemplateParameters(D->getTemplateParameters())) 842 return true; 843 844 if (D->hasDefaultArgument() && !D->defaultArgumentWasInherited() && 845 VisitTemplateArgumentLoc(D->getDefaultArgument())) 846 return true; 847 848 return false; 849} 850 851bool CursorVisitor::VisitObjCMethodDecl(ObjCMethodDecl *ND) { 852 if (TypeSourceInfo *TSInfo = ND->getResultTypeSourceInfo()) 853 if (Visit(TSInfo->getTypeLoc())) 854 return true; 855 856 for (ObjCMethodDecl::param_iterator P = ND->param_begin(), 857 PEnd = ND->param_end(); 858 P != PEnd; ++P) { 859 if (Visit(MakeCXCursor(*P, TU))) 860 return true; 861 } 862 863 if (ND->isThisDeclarationADefinition() && 864 Visit(MakeCXCursor(ND->getBody(), StmtParent, TU))) 865 return true; 866 867 return false; 868} 869 870bool CursorVisitor::VisitObjCContainerDecl(ObjCContainerDecl *D) { 871 return VisitDeclContext(D); 872} 873 874bool CursorVisitor::VisitObjCCategoryDecl(ObjCCategoryDecl *ND) { 875 if (Visit(MakeCursorObjCClassRef(ND->getClassInterface(), ND->getLocation(), 876 TU))) 877 return true; 878 879 ObjCCategoryDecl::protocol_loc_iterator PL = ND->protocol_loc_begin(); 880 for (ObjCCategoryDecl::protocol_iterator I = ND->protocol_begin(), 881 E = ND->protocol_end(); I != E; ++I, ++PL) 882 if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) 883 return true; 884 885 return VisitObjCContainerDecl(ND); 886} 887 888bool CursorVisitor::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) { 889 ObjCProtocolDecl::protocol_loc_iterator PL = PID->protocol_loc_begin(); 890 for (ObjCProtocolDecl::protocol_iterator I = PID->protocol_begin(), 891 E = PID->protocol_end(); I != E; ++I, ++PL) 892 if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) 893 return true; 894 895 return VisitObjCContainerDecl(PID); 896} 897 898bool CursorVisitor::VisitObjCPropertyDecl(ObjCPropertyDecl *PD) { 899 if (PD->getTypeSourceInfo() && Visit(PD->getTypeSourceInfo()->getTypeLoc())) 900 return true; 901 902 // FIXME: This implements a workaround with @property declarations also being 903 // installed in the DeclContext for the @interface. Eventually this code 904 // should be removed. 905 ObjCCategoryDecl *CDecl = dyn_cast<ObjCCategoryDecl>(PD->getDeclContext()); 906 if (!CDecl || !CDecl->IsClassExtension()) 907 return false; 908 909 ObjCInterfaceDecl *ID = CDecl->getClassInterface(); 910 if (!ID) 911 return false; 912 913 IdentifierInfo *PropertyId = PD->getIdentifier(); 914 ObjCPropertyDecl *prevDecl = 915 ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(ID), PropertyId); 916 917 if (!prevDecl) 918 return false; 919 920 // Visit synthesized methods since they will be skipped when visiting 921 // the @interface. 922 if (ObjCMethodDecl *MD = prevDecl->getGetterMethodDecl()) 923 if (MD->isSynthesized()) 924 if (Visit(MakeCXCursor(MD, TU))) 925 return true; 926 927 if (ObjCMethodDecl *MD = prevDecl->getSetterMethodDecl()) 928 if (MD->isSynthesized()) 929 if (Visit(MakeCXCursor(MD, TU))) 930 return true; 931 932 return false; 933} 934 935bool CursorVisitor::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { 936 // Issue callbacks for super class. 937 if (D->getSuperClass() && 938 Visit(MakeCursorObjCSuperClassRef(D->getSuperClass(), 939 D->getSuperClassLoc(), 940 TU))) 941 return true; 942 943 ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(); 944 for (ObjCInterfaceDecl::protocol_iterator I = D->protocol_begin(), 945 E = D->protocol_end(); I != E; ++I, ++PL) 946 if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) 947 return true; 948 949 return VisitObjCContainerDecl(D); 950} 951 952bool CursorVisitor::VisitObjCImplDecl(ObjCImplDecl *D) { 953 return VisitObjCContainerDecl(D); 954} 955 956bool CursorVisitor::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { 957 // 'ID' could be null when dealing with invalid code. 958 if (ObjCInterfaceDecl *ID = D->getClassInterface()) 959 if (Visit(MakeCursorObjCClassRef(ID, D->getLocation(), TU))) 960 return true; 961 962 return VisitObjCImplDecl(D); 963} 964 965bool CursorVisitor::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { 966#if 0 967 // Issue callbacks for super class. 968 // FIXME: No source location information! 969 if (D->getSuperClass() && 970 Visit(MakeCursorObjCSuperClassRef(D->getSuperClass(), 971 D->getSuperClassLoc(), 972 TU))) 973 return true; 974#endif 975 976 return VisitObjCImplDecl(D); 977} 978 979bool CursorVisitor::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { 980 ObjCForwardProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(); 981 for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(), 982 E = D->protocol_end(); 983 I != E; ++I, ++PL) 984 if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) 985 return true; 986 987 return false; 988} 989 990bool CursorVisitor::VisitObjCClassDecl(ObjCClassDecl *D) { 991 for (ObjCClassDecl::iterator C = D->begin(), CEnd = D->end(); C != CEnd; ++C) 992 if (Visit(MakeCursorObjCClassRef(C->getInterface(), C->getLocation(), TU))) 993 return true; 994 995 return false; 996} 997 998bool CursorVisitor::VisitNamespaceDecl(NamespaceDecl *D) { 999 return VisitDeclContext(D); 1000} 1001 1002bool CursorVisitor::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) { 1003 // Visit nested-name-specifier. 1004 if (NestedNameSpecifier *Qualifier = D->getQualifier()) 1005 if (VisitNestedNameSpecifier(Qualifier, D->getQualifierRange())) 1006 return true; 1007 1008 return Visit(MakeCursorNamespaceRef(D->getAliasedNamespace(), 1009 D->getTargetNameLoc(), TU)); 1010} 1011 1012bool CursorVisitor::VisitUsingDecl(UsingDecl *D) { 1013 // Visit nested-name-specifier. 1014 if (NestedNameSpecifier *Qualifier = D->getTargetNestedNameDecl()) 1015 if (VisitNestedNameSpecifier(Qualifier, D->getNestedNameRange())) 1016 return true; 1017 1018 if (Visit(MakeCursorOverloadedDeclRef(D, D->getLocation(), TU))) 1019 return true; 1020 1021 return VisitDeclarationNameInfo(D->getNameInfo()); 1022} 1023 1024bool CursorVisitor::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) { 1025 // Visit nested-name-specifier. 1026 if (NestedNameSpecifier *Qualifier = D->getQualifier()) 1027 if (VisitNestedNameSpecifier(Qualifier, D->getQualifierRange())) 1028 return true; 1029 1030 return Visit(MakeCursorNamespaceRef(D->getNominatedNamespaceAsWritten(), 1031 D->getIdentLocation(), TU)); 1032} 1033 1034bool CursorVisitor::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) { 1035 // Visit nested-name-specifier. 1036 if (NestedNameSpecifier *Qualifier = D->getTargetNestedNameSpecifier()) 1037 if (VisitNestedNameSpecifier(Qualifier, D->getTargetNestedNameRange())) 1038 return true; 1039 1040 return VisitDeclarationNameInfo(D->getNameInfo()); 1041} 1042 1043bool CursorVisitor::VisitUnresolvedUsingTypenameDecl( 1044 UnresolvedUsingTypenameDecl *D) { 1045 // Visit nested-name-specifier. 1046 if (NestedNameSpecifier *Qualifier = D->getTargetNestedNameSpecifier()) 1047 if (VisitNestedNameSpecifier(Qualifier, D->getTargetNestedNameRange())) 1048 return true; 1049 1050 return false; 1051} 1052 1053bool CursorVisitor::VisitDeclarationNameInfo(DeclarationNameInfo Name) { 1054 switch (Name.getName().getNameKind()) { 1055 case clang::DeclarationName::Identifier: 1056 case clang::DeclarationName::CXXLiteralOperatorName: 1057 case clang::DeclarationName::CXXOperatorName: 1058 case clang::DeclarationName::CXXUsingDirective: 1059 return false; 1060 1061 case clang::DeclarationName::CXXConstructorName: 1062 case clang::DeclarationName::CXXDestructorName: 1063 case clang::DeclarationName::CXXConversionFunctionName: 1064 if (TypeSourceInfo *TSInfo = Name.getNamedTypeInfo()) 1065 return Visit(TSInfo->getTypeLoc()); 1066 return false; 1067 1068 case clang::DeclarationName::ObjCZeroArgSelector: 1069 case clang::DeclarationName::ObjCOneArgSelector: 1070 case clang::DeclarationName::ObjCMultiArgSelector: 1071 // FIXME: Per-identifier location info? 1072 return false; 1073 } 1074 1075 return false; 1076} 1077 1078bool CursorVisitor::VisitNestedNameSpecifier(NestedNameSpecifier *NNS, 1079 SourceRange Range) { 1080 // FIXME: This whole routine is a hack to work around the lack of proper 1081 // source information in nested-name-specifiers (PR5791). Since we do have 1082 // a beginning source location, we can visit the first component of the 1083 // nested-name-specifier, if it's a single-token component. 1084 if (!NNS) 1085 return false; 1086 1087 // Get the first component in the nested-name-specifier. 1088 while (NestedNameSpecifier *Prefix = NNS->getPrefix()) 1089 NNS = Prefix; 1090 1091 switch (NNS->getKind()) { 1092 case NestedNameSpecifier::Namespace: 1093 // FIXME: The token at this source location might actually have been a 1094 // namespace alias, but we don't model that. Lame! 1095 return Visit(MakeCursorNamespaceRef(NNS->getAsNamespace(), Range.getBegin(), 1096 TU)); 1097 1098 case NestedNameSpecifier::TypeSpec: { 1099 // If the type has a form where we know that the beginning of the source 1100 // range matches up with a reference cursor. Visit the appropriate reference 1101 // cursor. 1102 Type *T = NNS->getAsType(); 1103 if (const TypedefType *Typedef = dyn_cast<TypedefType>(T)) 1104 return Visit(MakeCursorTypeRef(Typedef->getDecl(), Range.getBegin(), TU)); 1105 if (const TagType *Tag = dyn_cast<TagType>(T)) 1106 return Visit(MakeCursorTypeRef(Tag->getDecl(), Range.getBegin(), TU)); 1107 if (const TemplateSpecializationType *TST 1108 = dyn_cast<TemplateSpecializationType>(T)) 1109 return VisitTemplateName(TST->getTemplateName(), Range.getBegin()); 1110 break; 1111 } 1112 1113 case NestedNameSpecifier::TypeSpecWithTemplate: 1114 case NestedNameSpecifier::Global: 1115 case NestedNameSpecifier::Identifier: 1116 break; 1117 } 1118 1119 return false; 1120} 1121 1122bool CursorVisitor::VisitTemplateParameters( 1123 const TemplateParameterList *Params) { 1124 if (!Params) 1125 return false; 1126 1127 for (TemplateParameterList::const_iterator P = Params->begin(), 1128 PEnd = Params->end(); 1129 P != PEnd; ++P) { 1130 if (Visit(MakeCXCursor(*P, TU))) 1131 return true; 1132 } 1133 1134 return false; 1135} 1136 1137bool CursorVisitor::VisitTemplateName(TemplateName Name, SourceLocation Loc) { 1138 switch (Name.getKind()) { 1139 case TemplateName::Template: 1140 return Visit(MakeCursorTemplateRef(Name.getAsTemplateDecl(), Loc, TU)); 1141 1142 case TemplateName::OverloadedTemplate: 1143 // Visit the overloaded template set. 1144 if (Visit(MakeCursorOverloadedDeclRef(Name, Loc, TU))) 1145 return true; 1146 1147 return false; 1148 1149 case TemplateName::DependentTemplate: 1150 // FIXME: Visit nested-name-specifier. 1151 return false; 1152 1153 case TemplateName::QualifiedTemplate: 1154 // FIXME: Visit nested-name-specifier. 1155 return Visit(MakeCursorTemplateRef( 1156 Name.getAsQualifiedTemplateName()->getDecl(), 1157 Loc, TU)); 1158 } 1159 1160 return false; 1161} 1162 1163bool CursorVisitor::VisitTemplateArgumentLoc(const TemplateArgumentLoc &TAL) { 1164 switch (TAL.getArgument().getKind()) { 1165 case TemplateArgument::Null: 1166 case TemplateArgument::Integral: 1167 return false; 1168 1169 case TemplateArgument::Pack: 1170 // FIXME: Implement when variadic templates come along. 1171 return false; 1172 1173 case TemplateArgument::Type: 1174 if (TypeSourceInfo *TSInfo = TAL.getTypeSourceInfo()) 1175 return Visit(TSInfo->getTypeLoc()); 1176 return false; 1177 1178 case TemplateArgument::Declaration: 1179 if (Expr *E = TAL.getSourceDeclExpression()) 1180 return Visit(MakeCXCursor(E, StmtParent, TU)); 1181 return false; 1182 1183 case TemplateArgument::Expression: 1184 if (Expr *E = TAL.getSourceExpression()) 1185 return Visit(MakeCXCursor(E, StmtParent, TU)); 1186 return false; 1187 1188 case TemplateArgument::Template: 1189 return VisitTemplateName(TAL.getArgument().getAsTemplate(), 1190 TAL.getTemplateNameLoc()); 1191 } 1192 1193 return false; 1194} 1195 1196bool CursorVisitor::VisitLinkageSpecDecl(LinkageSpecDecl *D) { 1197 return VisitDeclContext(D); 1198} 1199 1200bool CursorVisitor::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) { 1201 return Visit(TL.getUnqualifiedLoc()); 1202} 1203 1204bool CursorVisitor::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { 1205 ASTContext &Context = TU->getASTContext(); 1206 1207 // Some builtin types (such as Objective-C's "id", "sel", and 1208 // "Class") have associated declarations. Create cursors for those. 1209 QualType VisitType; 1210 switch (TL.getType()->getAs<BuiltinType>()->getKind()) { 1211 case BuiltinType::Void: 1212 case BuiltinType::Bool: 1213 case BuiltinType::Char_U: 1214 case BuiltinType::UChar: 1215 case BuiltinType::Char16: 1216 case BuiltinType::Char32: 1217 case BuiltinType::UShort: 1218 case BuiltinType::UInt: 1219 case BuiltinType::ULong: 1220 case BuiltinType::ULongLong: 1221 case BuiltinType::UInt128: 1222 case BuiltinType::Char_S: 1223 case BuiltinType::SChar: 1224 case BuiltinType::WChar: 1225 case BuiltinType::Short: 1226 case BuiltinType::Int: 1227 case BuiltinType::Long: 1228 case BuiltinType::LongLong: 1229 case BuiltinType::Int128: 1230 case BuiltinType::Float: 1231 case BuiltinType::Double: 1232 case BuiltinType::LongDouble: 1233 case BuiltinType::NullPtr: 1234 case BuiltinType::Overload: 1235 case BuiltinType::Dependent: 1236 break; 1237 1238 case BuiltinType::UndeducedAuto: // FIXME: Deserves a cursor? 1239 break; 1240 1241 case BuiltinType::ObjCId: 1242 VisitType = Context.getObjCIdType(); 1243 break; 1244 1245 case BuiltinType::ObjCClass: 1246 VisitType = Context.getObjCClassType(); 1247 break; 1248 1249 case BuiltinType::ObjCSel: 1250 VisitType = Context.getObjCSelType(); 1251 break; 1252 } 1253 1254 if (!VisitType.isNull()) { 1255 if (const TypedefType *Typedef = VisitType->getAs<TypedefType>()) 1256 return Visit(MakeCursorTypeRef(Typedef->getDecl(), TL.getBuiltinLoc(), 1257 TU)); 1258 } 1259 1260 return false; 1261} 1262 1263bool CursorVisitor::VisitTypedefTypeLoc(TypedefTypeLoc TL) { 1264 return Visit(MakeCursorTypeRef(TL.getTypedefDecl(), TL.getNameLoc(), TU)); 1265} 1266 1267bool CursorVisitor::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) { 1268 return Visit(MakeCursorTypeRef(TL.getDecl(), TL.getNameLoc(), TU)); 1269} 1270 1271bool CursorVisitor::VisitTagTypeLoc(TagTypeLoc TL) { 1272 return Visit(MakeCursorTypeRef(TL.getDecl(), TL.getNameLoc(), TU)); 1273} 1274 1275bool CursorVisitor::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) { 1276 // FIXME: We can't visit the template type parameter, because there's 1277 // no context information with which we can match up the depth/index in the 1278 // type to the appropriate 1279 return false; 1280} 1281 1282bool CursorVisitor::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { 1283 if (Visit(MakeCursorObjCClassRef(TL.getIFaceDecl(), TL.getNameLoc(), TU))) 1284 return true; 1285 1286 return false; 1287} 1288 1289bool CursorVisitor::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { 1290 if (TL.hasBaseTypeAsWritten() && Visit(TL.getBaseLoc())) 1291 return true; 1292 1293 for (unsigned I = 0, N = TL.getNumProtocols(); I != N; ++I) { 1294 if (Visit(MakeCursorObjCProtocolRef(TL.getProtocol(I), TL.getProtocolLoc(I), 1295 TU))) 1296 return true; 1297 } 1298 1299 return false; 1300} 1301 1302bool CursorVisitor::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { 1303 return Visit(TL.getPointeeLoc()); 1304} 1305 1306bool CursorVisitor::VisitPointerTypeLoc(PointerTypeLoc TL) { 1307 return Visit(TL.getPointeeLoc()); 1308} 1309 1310bool CursorVisitor::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { 1311 return Visit(TL.getPointeeLoc()); 1312} 1313 1314bool CursorVisitor::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { 1315 return Visit(TL.getPointeeLoc()); 1316} 1317 1318bool CursorVisitor::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { 1319 return Visit(TL.getPointeeLoc()); 1320} 1321 1322bool CursorVisitor::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { 1323 return Visit(TL.getPointeeLoc()); 1324} 1325 1326bool CursorVisitor::VisitFunctionTypeLoc(FunctionTypeLoc TL, 1327 bool SkipResultType) { 1328 if (!SkipResultType && Visit(TL.getResultLoc())) 1329 return true; 1330 1331 for (unsigned I = 0, N = TL.getNumArgs(); I != N; ++I) 1332 if (Decl *D = TL.getArg(I)) 1333 if (Visit(MakeCXCursor(D, TU))) 1334 return true; 1335 1336 return false; 1337} 1338 1339bool CursorVisitor::VisitArrayTypeLoc(ArrayTypeLoc TL) { 1340 if (Visit(TL.getElementLoc())) 1341 return true; 1342 1343 if (Expr *Size = TL.getSizeExpr()) 1344 return Visit(MakeCXCursor(Size, StmtParent, TU)); 1345 1346 return false; 1347} 1348 1349bool CursorVisitor::VisitTemplateSpecializationTypeLoc( 1350 TemplateSpecializationTypeLoc TL) { 1351 // Visit the template name. 1352 if (VisitTemplateName(TL.getTypePtr()->getTemplateName(), 1353 TL.getTemplateNameLoc())) 1354 return true; 1355 1356 // Visit the template arguments. 1357 for (unsigned I = 0, N = TL.getNumArgs(); I != N; ++I) 1358 if (VisitTemplateArgumentLoc(TL.getArgLoc(I))) 1359 return true; 1360 1361 return false; 1362} 1363 1364bool CursorVisitor::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { 1365 return Visit(MakeCXCursor(TL.getUnderlyingExpr(), StmtParent, TU)); 1366} 1367 1368bool CursorVisitor::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { 1369 if (TypeSourceInfo *TSInfo = TL.getUnderlyingTInfo()) 1370 return Visit(TSInfo->getTypeLoc()); 1371 1372 return false; 1373} 1374 1375bool CursorVisitor::VisitStmt(Stmt *S) { 1376 for (Stmt::child_iterator Child = S->child_begin(), ChildEnd = S->child_end(); 1377 Child != ChildEnd; ++Child) { 1378 if (Stmt *C = *Child) 1379 if (Visit(MakeCXCursor(C, StmtParent, TU))) 1380 return true; 1381 } 1382 1383 return false; 1384} 1385 1386bool CursorVisitor::VisitCaseStmt(CaseStmt *S) { 1387 // Specially handle CaseStmts because they can be nested, e.g.: 1388 // 1389 // case 1: 1390 // case 2: 1391 // 1392 // In this case the second CaseStmt is the child of the first. Walking 1393 // these recursively can blow out the stack. 1394 CXCursor Cursor = MakeCXCursor(S, StmtParent, TU); 1395 while (true) { 1396 // Set the Parent field to Cursor, then back to its old value once we're 1397 // done. 1398 SetParentRAII SetParent(Parent, StmtParent, Cursor); 1399 1400 if (Stmt *LHS = S->getLHS()) 1401 if (Visit(MakeCXCursor(LHS, StmtParent, TU))) 1402 return true; 1403 if (Stmt *RHS = S->getRHS()) 1404 if (Visit(MakeCXCursor(RHS, StmtParent, TU))) 1405 return true; 1406 if (Stmt *SubStmt = S->getSubStmt()) { 1407 if (!isa<CaseStmt>(SubStmt)) 1408 return Visit(MakeCXCursor(SubStmt, StmtParent, TU)); 1409 1410 // Specially handle 'CaseStmt' so that we don't blow out the stack. 1411 CaseStmt *CS = cast<CaseStmt>(SubStmt); 1412 Cursor = MakeCXCursor(CS, StmtParent, TU); 1413 if (RegionOfInterest.isValid()) { 1414 SourceRange Range = CS->getSourceRange(); 1415 if (Range.isInvalid() || CompareRegionOfInterest(Range)) 1416 return false; 1417 } 1418 1419 switch (Visitor(Cursor, Parent, ClientData)) { 1420 case CXChildVisit_Break: return true; 1421 case CXChildVisit_Continue: return false; 1422 case CXChildVisit_Recurse: 1423 // Perform tail-recursion manually. 1424 S = CS; 1425 continue; 1426 } 1427 } 1428 return false; 1429 } 1430} 1431 1432bool CursorVisitor::VisitDeclStmt(DeclStmt *S) { 1433 for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end(); 1434 D != DEnd; ++D) { 1435 if (*D && Visit(MakeCXCursor(*D, TU))) 1436 return true; 1437 } 1438 1439 return false; 1440} 1441 1442bool CursorVisitor::VisitGotoStmt(GotoStmt *S) { 1443 return Visit(MakeCursorLabelRef(S->getLabel(), S->getLabelLoc(), TU)); 1444} 1445 1446bool CursorVisitor::VisitIfStmt(IfStmt *S) { 1447 if (VarDecl *Var = S->getConditionVariable()) { 1448 if (Visit(MakeCXCursor(Var, TU))) 1449 return true; 1450 } 1451 1452 if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) 1453 return true; 1454 if (S->getThen() && Visit(MakeCXCursor(S->getThen(), StmtParent, TU))) 1455 return true; 1456 if (S->getElse() && Visit(MakeCXCursor(S->getElse(), StmtParent, TU))) 1457 return true; 1458 1459 return false; 1460} 1461 1462bool CursorVisitor::VisitSwitchStmt(SwitchStmt *S) { 1463 if (VarDecl *Var = S->getConditionVariable()) { 1464 if (Visit(MakeCXCursor(Var, TU))) 1465 return true; 1466 } 1467 1468 if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) 1469 return true; 1470 if (S->getBody() && Visit(MakeCXCursor(S->getBody(), StmtParent, TU))) 1471 return true; 1472 1473 return false; 1474} 1475 1476bool CursorVisitor::VisitWhileStmt(WhileStmt *S) { 1477 if (VarDecl *Var = S->getConditionVariable()) { 1478 if (Visit(MakeCXCursor(Var, TU))) 1479 return true; 1480 } 1481 1482 if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) 1483 return true; 1484 if (S->getBody() && Visit(MakeCXCursor(S->getBody(), StmtParent, TU))) 1485 return true; 1486 1487 return false; 1488} 1489 1490bool CursorVisitor::VisitForStmt(ForStmt *S) { 1491 if (S->getInit() && Visit(MakeCXCursor(S->getInit(), StmtParent, TU))) 1492 return true; 1493 if (VarDecl *Var = S->getConditionVariable()) { 1494 if (Visit(MakeCXCursor(Var, TU))) 1495 return true; 1496 } 1497 1498 if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) 1499 return true; 1500 if (S->getInc() && Visit(MakeCXCursor(S->getInc(), StmtParent, TU))) 1501 return true; 1502 if (S->getBody() && Visit(MakeCXCursor(S->getBody(), StmtParent, TU))) 1503 return true; 1504 1505 return false; 1506} 1507 1508bool CursorVisitor::VisitDeclRefExpr(DeclRefExpr *E) { 1509 // Visit nested-name-specifier, if present. 1510 if (NestedNameSpecifier *Qualifier = E->getQualifier()) 1511 if (VisitNestedNameSpecifier(Qualifier, E->getQualifierRange())) 1512 return true; 1513 1514 // Visit declaration name. 1515 if (VisitDeclarationNameInfo(E->getNameInfo())) 1516 return true; 1517 1518 // Visit explicitly-specified template arguments. 1519 if (E->hasExplicitTemplateArgs()) { 1520 ExplicitTemplateArgumentList &Args = E->getExplicitTemplateArgs(); 1521 for (TemplateArgumentLoc *Arg = Args.getTemplateArgs(), 1522 *ArgEnd = Arg + Args.NumTemplateArgs; 1523 Arg != ArgEnd; ++Arg) 1524 if (VisitTemplateArgumentLoc(*Arg)) 1525 return true; 1526 } 1527 1528 return false; 1529} 1530 1531bool CursorVisitor::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) { 1532 if (Visit(MakeCXCursor(E->getArg(0), StmtParent, TU))) 1533 return true; 1534 1535 if (Visit(MakeCXCursor(E->getCallee(), StmtParent, TU))) 1536 return true; 1537 1538 for (unsigned I = 1, N = E->getNumArgs(); I != N; ++I) 1539 if (Visit(MakeCXCursor(E->getArg(I), StmtParent, TU))) 1540 return true; 1541 1542 return false; 1543} 1544 1545bool CursorVisitor::VisitCXXRecordDecl(CXXRecordDecl *D) { 1546 if (D->isDefinition()) { 1547 for (CXXRecordDecl::base_class_iterator I = D->bases_begin(), 1548 E = D->bases_end(); I != E; ++I) { 1549 if (Visit(cxcursor::MakeCursorCXXBaseSpecifier(I, TU))) 1550 return true; 1551 } 1552 } 1553 1554 return VisitTagDecl(D); 1555} 1556 1557 1558bool CursorVisitor::VisitBlockExpr(BlockExpr *B) { 1559 return Visit(B->getBlockDecl()); 1560} 1561 1562bool CursorVisitor::VisitOffsetOfExpr(OffsetOfExpr *E) { 1563 // Visit the type into which we're computing an offset. 1564 if (Visit(E->getTypeSourceInfo()->getTypeLoc())) 1565 return true; 1566 1567 // Visit the components of the offsetof expression. 1568 for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) { 1569 typedef OffsetOfExpr::OffsetOfNode OffsetOfNode; 1570 const OffsetOfNode &Node = E->getComponent(I); 1571 switch (Node.getKind()) { 1572 case OffsetOfNode::Array: 1573 if (Visit(MakeCXCursor(E->getIndexExpr(Node.getArrayExprIndex()), 1574 StmtParent, TU))) 1575 return true; 1576 break; 1577 1578 case OffsetOfNode::Field: 1579 if (Visit(MakeCursorMemberRef(Node.getField(), Node.getRange().getEnd(), 1580 TU))) 1581 return true; 1582 break; 1583 1584 case OffsetOfNode::Identifier: 1585 case OffsetOfNode::Base: 1586 continue; 1587 } 1588 } 1589 1590 return false; 1591} 1592 1593bool CursorVisitor::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) { 1594 if (E->isArgumentType()) { 1595 if (TypeSourceInfo *TSInfo = E->getArgumentTypeInfo()) 1596 return Visit(TSInfo->getTypeLoc()); 1597 1598 return false; 1599 } 1600 1601 return VisitExpr(E); 1602} 1603 1604bool CursorVisitor::VisitMemberExpr(MemberExpr *E) { 1605 // Visit the base expression. 1606 if (Visit(MakeCXCursor(E->getBase(), StmtParent, TU))) 1607 return true; 1608 1609 // Visit the nested-name-specifier 1610 if (NestedNameSpecifier *Qualifier = E->getQualifier()) 1611 if (VisitNestedNameSpecifier(Qualifier, E->getQualifierRange())) 1612 return true; 1613 1614 // Visit the declaration name. 1615 if (VisitDeclarationNameInfo(E->getMemberNameInfo())) 1616 return true; 1617 1618 // Visit the explicitly-specified template arguments, if any. 1619 if (E->hasExplicitTemplateArgs()) { 1620 for (const TemplateArgumentLoc *Arg = E->getTemplateArgs(), 1621 *ArgEnd = Arg + E->getNumTemplateArgs(); 1622 Arg != ArgEnd; 1623 ++Arg) { 1624 if (VisitTemplateArgumentLoc(*Arg)) 1625 return true; 1626 } 1627 } 1628 1629 return false; 1630} 1631 1632bool CursorVisitor::VisitExplicitCastExpr(ExplicitCastExpr *E) { 1633 if (TypeSourceInfo *TSInfo = E->getTypeInfoAsWritten()) 1634 if (Visit(TSInfo->getTypeLoc())) 1635 return true; 1636 1637 return VisitCastExpr(E); 1638} 1639 1640bool CursorVisitor::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) { 1641 if (TypeSourceInfo *TSInfo = E->getTypeSourceInfo()) 1642 if (Visit(TSInfo->getTypeLoc())) 1643 return true; 1644 1645 return VisitExpr(E); 1646} 1647 1648bool CursorVisitor::VisitAddrLabelExpr(AddrLabelExpr *E) { 1649 return Visit(MakeCursorLabelRef(E->getLabel(), E->getLabelLoc(), TU)); 1650} 1651 1652bool CursorVisitor::VisitTypesCompatibleExpr(TypesCompatibleExpr *E) { 1653 return Visit(E->getArgTInfo1()->getTypeLoc()) || 1654 Visit(E->getArgTInfo2()->getTypeLoc()); 1655} 1656 1657bool CursorVisitor::VisitVAArgExpr(VAArgExpr *E) { 1658 if (Visit(E->getWrittenTypeInfo()->getTypeLoc())) 1659 return true; 1660 1661 return Visit(MakeCXCursor(E->getSubExpr(), StmtParent, TU)); 1662} 1663 1664bool CursorVisitor::VisitInitListExpr(InitListExpr *E) { 1665 // We care about the syntactic form of the initializer list, only. 1666 return VisitExpr(E->getSyntacticForm()); 1667} 1668 1669bool CursorVisitor::VisitDesignatedInitExpr(DesignatedInitExpr *E) { 1670 // Visit the designators. 1671 typedef DesignatedInitExpr::Designator Designator; 1672 for (DesignatedInitExpr::designators_iterator D = E->designators_begin(), 1673 DEnd = E->designators_end(); 1674 D != DEnd; ++D) { 1675 if (D->isFieldDesignator()) { 1676 if (FieldDecl *Field = D->getField()) 1677 if (Visit(MakeCursorMemberRef(Field, D->getFieldLoc(), TU))) 1678 return true; 1679 1680 continue; 1681 } 1682 1683 if (D->isArrayDesignator()) { 1684 if (Visit(MakeCXCursor(E->getArrayIndex(*D), StmtParent, TU))) 1685 return true; 1686 1687 continue; 1688 } 1689 1690 assert(D->isArrayRangeDesignator() && "Unknown designator kind"); 1691 if (Visit(MakeCXCursor(E->getArrayRangeStart(*D), StmtParent, TU)) || 1692 Visit(MakeCXCursor(E->getArrayRangeEnd(*D), StmtParent, TU))) 1693 return true; 1694 } 1695 1696 // Visit the initializer value itself. 1697 return Visit(MakeCXCursor(E->getInit(), StmtParent, TU)); 1698} 1699 1700bool CursorVisitor::VisitCXXTypeidExpr(CXXTypeidExpr *E) { 1701 if (E->isTypeOperand()) { 1702 if (TypeSourceInfo *TSInfo = E->getTypeOperandSourceInfo()) 1703 return Visit(TSInfo->getTypeLoc()); 1704 1705 return false; 1706 } 1707 1708 return VisitExpr(E); 1709} 1710 1711bool CursorVisitor::VisitCXXUuidofExpr(CXXUuidofExpr *E) { 1712 if (E->isTypeOperand()) { 1713 if (TypeSourceInfo *TSInfo = E->getTypeOperandSourceInfo()) 1714 return Visit(TSInfo->getTypeLoc()); 1715 1716 return false; 1717 } 1718 1719 return VisitExpr(E); 1720} 1721 1722bool CursorVisitor::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) { 1723 if (TypeSourceInfo *TSInfo = E->getTypeSourceInfo()) 1724 return Visit(TSInfo->getTypeLoc()); 1725 1726 return VisitExpr(E); 1727} 1728 1729bool CursorVisitor::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) { 1730 if (TypeSourceInfo *TSInfo = E->getTypeSourceInfo()) 1731 return Visit(TSInfo->getTypeLoc()); 1732 1733 return false; 1734} 1735 1736bool CursorVisitor::VisitCXXNewExpr(CXXNewExpr *E) { 1737 // Visit placement arguments. 1738 for (unsigned I = 0, N = E->getNumPlacementArgs(); I != N; ++I) 1739 if (Visit(MakeCXCursor(E->getPlacementArg(I), StmtParent, TU))) 1740 return true; 1741 1742 // Visit the allocated type. 1743 if (TypeSourceInfo *TSInfo = E->getAllocatedTypeSourceInfo()) 1744 if (Visit(TSInfo->getTypeLoc())) 1745 return true; 1746 1747 // Visit the array size, if any. 1748 if (E->isArray() && Visit(MakeCXCursor(E->getArraySize(), StmtParent, TU))) 1749 return true; 1750 1751 // Visit the initializer or constructor arguments. 1752 for (unsigned I = 0, N = E->getNumConstructorArgs(); I != N; ++I) 1753 if (Visit(MakeCXCursor(E->getConstructorArg(I), StmtParent, TU))) 1754 return true; 1755 1756 return false; 1757} 1758 1759bool CursorVisitor::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) { 1760 // Visit base expression. 1761 if (Visit(MakeCXCursor(E->getBase(), StmtParent, TU))) 1762 return true; 1763 1764 // Visit the nested-name-specifier. 1765 if (NestedNameSpecifier *Qualifier = E->getQualifier()) 1766 if (VisitNestedNameSpecifier(Qualifier, E->getQualifierRange())) 1767 return true; 1768 1769 // Visit the scope type that looks disturbingly like the nested-name-specifier 1770 // but isn't. 1771 if (TypeSourceInfo *TSInfo = E->getScopeTypeInfo()) 1772 if (Visit(TSInfo->getTypeLoc())) 1773 return true; 1774 1775 // Visit the name of the type being destroyed. 1776 if (TypeSourceInfo *TSInfo = E->getDestroyedTypeInfo()) 1777 if (Visit(TSInfo->getTypeLoc())) 1778 return true; 1779 1780 return false; 1781} 1782 1783bool CursorVisitor::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *E) { 1784 return Visit(E->getQueriedTypeSourceInfo()->getTypeLoc()); 1785} 1786 1787bool CursorVisitor::VisitOverloadExpr(OverloadExpr *E) { 1788 // Visit the nested-name-specifier. 1789 if (NestedNameSpecifier *Qualifier = E->getQualifier()) 1790 if (VisitNestedNameSpecifier(Qualifier, E->getQualifierRange())) 1791 return true; 1792 1793 // Visit the declaration name. 1794 if (VisitDeclarationNameInfo(E->getNameInfo())) 1795 return true; 1796 1797 // Visit the overloaded declaration reference. 1798 if (Visit(MakeCursorOverloadedDeclRef(E, TU))) 1799 return true; 1800 1801 // Visit the explicitly-specified template arguments. 1802 if (const ExplicitTemplateArgumentList *ArgList 1803 = E->getOptionalExplicitTemplateArgs()) { 1804 for (const TemplateArgumentLoc *Arg = ArgList->getTemplateArgs(), 1805 *ArgEnd = Arg + ArgList->NumTemplateArgs; 1806 Arg != ArgEnd; ++Arg) { 1807 if (VisitTemplateArgumentLoc(*Arg)) 1808 return true; 1809 } 1810 } 1811 1812 return false; 1813} 1814 1815bool CursorVisitor::VisitDependentScopeDeclRefExpr( 1816 DependentScopeDeclRefExpr *E) { 1817 // Visit the nested-name-specifier. 1818 if (NestedNameSpecifier *Qualifier = E->getQualifier()) 1819 if (VisitNestedNameSpecifier(Qualifier, E->getQualifierRange())) 1820 return true; 1821 1822 // Visit the declaration name. 1823 if (VisitDeclarationNameInfo(E->getNameInfo())) 1824 return true; 1825 1826 // Visit the explicitly-specified template arguments. 1827 if (const ExplicitTemplateArgumentList *ArgList 1828 = E->getOptionalExplicitTemplateArgs()) { 1829 for (const TemplateArgumentLoc *Arg = ArgList->getTemplateArgs(), 1830 *ArgEnd = Arg + ArgList->NumTemplateArgs; 1831 Arg != ArgEnd; ++Arg) { 1832 if (VisitTemplateArgumentLoc(*Arg)) 1833 return true; 1834 } 1835 } 1836 1837 return false; 1838} 1839 1840bool CursorVisitor::VisitCXXUnresolvedConstructExpr( 1841 CXXUnresolvedConstructExpr *E) { 1842 if (TypeSourceInfo *TSInfo = E->getTypeSourceInfo()) 1843 if (Visit(TSInfo->getTypeLoc())) 1844 return true; 1845 1846 return VisitExpr(E); 1847} 1848 1849bool CursorVisitor::VisitCXXDependentScopeMemberExpr( 1850 CXXDependentScopeMemberExpr *E) { 1851 // Visit the base expression, if there is one. 1852 if (!E->isImplicitAccess() && 1853 Visit(MakeCXCursor(E->getBase(), StmtParent, TU))) 1854 return true; 1855 1856 // Visit the nested-name-specifier. 1857 if (NestedNameSpecifier *Qualifier = E->getQualifier()) 1858 if (VisitNestedNameSpecifier(Qualifier, E->getQualifierRange())) 1859 return true; 1860 1861 // Visit the declaration name. 1862 if (VisitDeclarationNameInfo(E->getMemberNameInfo())) 1863 return true; 1864 1865 // Visit the explicitly-specified template arguments. 1866 if (const ExplicitTemplateArgumentList *ArgList 1867 = E->getOptionalExplicitTemplateArgs()) { 1868 for (const TemplateArgumentLoc *Arg = ArgList->getTemplateArgs(), 1869 *ArgEnd = Arg + ArgList->NumTemplateArgs; 1870 Arg != ArgEnd; ++Arg) { 1871 if (VisitTemplateArgumentLoc(*Arg)) 1872 return true; 1873 } 1874 } 1875 1876 return false; 1877} 1878 1879bool CursorVisitor::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) { 1880 // Visit the base expression, if there is one. 1881 if (!E->isImplicitAccess() && 1882 Visit(MakeCXCursor(E->getBase(), StmtParent, TU))) 1883 return true; 1884 1885 return VisitOverloadExpr(E); 1886} 1887 1888bool CursorVisitor::VisitObjCMessageExpr(ObjCMessageExpr *E) { 1889 if (TypeSourceInfo *TSInfo = E->getClassReceiverTypeInfo()) 1890 if (Visit(TSInfo->getTypeLoc())) 1891 return true; 1892 1893 return VisitExpr(E); 1894} 1895 1896bool CursorVisitor::VisitObjCEncodeExpr(ObjCEncodeExpr *E) { 1897 return Visit(E->getEncodedTypeSourceInfo()->getTypeLoc()); 1898} 1899 1900 1901bool CursorVisitor::VisitAttributes(Decl *D) { 1902 for (AttrVec::const_iterator i = D->attr_begin(), e = D->attr_end(); 1903 i != e; ++i) 1904 if (Visit(MakeCXCursor(*i, D, TU))) 1905 return true; 1906 1907 return false; 1908} 1909 1910extern "C" { 1911CXIndex clang_createIndex(int excludeDeclarationsFromPCH, 1912 int displayDiagnostics) { 1913 // We use crash recovery to make some of our APIs more reliable, implicitly 1914 // enable it. 1915 llvm::CrashRecoveryContext::Enable(); 1916 1917 CIndexer *CIdxr = new CIndexer(); 1918 if (excludeDeclarationsFromPCH) 1919 CIdxr->setOnlyLocalDecls(); 1920 if (displayDiagnostics) 1921 CIdxr->setDisplayDiagnostics(); 1922 return CIdxr; 1923} 1924 1925void clang_disposeIndex(CXIndex CIdx) { 1926 if (CIdx) 1927 delete static_cast<CIndexer *>(CIdx); 1928 if (getenv("LIBCLANG_TIMING")) 1929 llvm::TimerGroup::printAll(llvm::errs()); 1930} 1931 1932void clang_setUseExternalASTGeneration(CXIndex CIdx, int value) { 1933 if (CIdx) { 1934 CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); 1935 CXXIdx->setUseExternalASTGeneration(value); 1936 } 1937} 1938 1939CXTranslationUnit clang_createTranslationUnit(CXIndex CIdx, 1940 const char *ast_filename) { 1941 if (!CIdx) 1942 return 0; 1943 1944 CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); 1945 1946 llvm::IntrusiveRefCntPtr<Diagnostic> Diags; 1947 return ASTUnit::LoadFromASTFile(ast_filename, Diags, 1948 CXXIdx->getOnlyLocalDecls(), 1949 0, 0, true); 1950} 1951 1952unsigned clang_defaultEditingTranslationUnitOptions() { 1953 return CXTranslationUnit_PrecompiledPreamble; 1954} 1955 1956CXTranslationUnit 1957clang_createTranslationUnitFromSourceFile(CXIndex CIdx, 1958 const char *source_filename, 1959 int num_command_line_args, 1960 const char * const *command_line_args, 1961 unsigned num_unsaved_files, 1962 struct CXUnsavedFile *unsaved_files) { 1963 return clang_parseTranslationUnit(CIdx, source_filename, 1964 command_line_args, num_command_line_args, 1965 unsaved_files, num_unsaved_files, 1966 CXTranslationUnit_DetailedPreprocessingRecord); 1967} 1968 1969struct ParseTranslationUnitInfo { 1970 CXIndex CIdx; 1971 const char *source_filename; 1972 const char *const *command_line_args; 1973 int num_command_line_args; 1974 struct CXUnsavedFile *unsaved_files; 1975 unsigned num_unsaved_files; 1976 unsigned options; 1977 CXTranslationUnit result; 1978}; 1979static void clang_parseTranslationUnit_Impl(void *UserData) { 1980 ParseTranslationUnitInfo *PTUI = 1981 static_cast<ParseTranslationUnitInfo*>(UserData); 1982 CXIndex CIdx = PTUI->CIdx; 1983 const char *source_filename = PTUI->source_filename; 1984 const char * const *command_line_args = PTUI->command_line_args; 1985 int num_command_line_args = PTUI->num_command_line_args; 1986 struct CXUnsavedFile *unsaved_files = PTUI->unsaved_files; 1987 unsigned num_unsaved_files = PTUI->num_unsaved_files; 1988 unsigned options = PTUI->options; 1989 PTUI->result = 0; 1990 1991 if (!CIdx) 1992 return; 1993 1994 CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); 1995 1996 bool PrecompilePreamble = options & CXTranslationUnit_PrecompiledPreamble; 1997 bool CompleteTranslationUnit 1998 = ((options & CXTranslationUnit_Incomplete) == 0); 1999 bool CacheCodeCompetionResults 2000 = options & CXTranslationUnit_CacheCompletionResults; 2001 2002 // Configure the diagnostics. 2003 DiagnosticOptions DiagOpts; 2004 llvm::IntrusiveRefCntPtr<Diagnostic> Diags; 2005 Diags = CompilerInstance::createDiagnostics(DiagOpts, 0, 0); 2006 2007 llvm::SmallVector<ASTUnit::RemappedFile, 4> RemappedFiles; 2008 for (unsigned I = 0; I != num_unsaved_files; ++I) { 2009 llvm::StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length); 2010 const llvm::MemoryBuffer *Buffer 2011 = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename); 2012 RemappedFiles.push_back(std::make_pair(unsaved_files[I].Filename, 2013 Buffer)); 2014 } 2015 2016 if (!CXXIdx->getUseExternalASTGeneration()) { 2017 llvm::SmallVector<const char *, 16> Args; 2018 2019 // The 'source_filename' argument is optional. If the caller does not 2020 // specify it then it is assumed that the source file is specified 2021 // in the actual argument list. 2022 if (source_filename) 2023 Args.push_back(source_filename); 2024 2025 // Since the Clang C library is primarily used by batch tools dealing with 2026 // (often very broken) source code, where spell-checking can have a 2027 // significant negative impact on performance (particularly when 2028 // precompiled headers are involved), we disable it by default. 2029 // Note that we place this argument early in the list, so that it can be 2030 // overridden by the caller with "-fspell-checking". 2031 Args.push_back("-fno-spell-checking"); 2032 2033 Args.insert(Args.end(), command_line_args, 2034 command_line_args + num_command_line_args); 2035 2036 // Do we need the detailed preprocessing record? 2037 if (options & CXTranslationUnit_DetailedPreprocessingRecord) { 2038 Args.push_back("-Xclang"); 2039 Args.push_back("-detailed-preprocessing-record"); 2040 } 2041 2042 unsigned NumErrors = Diags->getNumErrors(); 2043 2044#ifdef USE_CRASHTRACER 2045 ArgsCrashTracerInfo ACTI(Args); 2046#endif 2047 2048 llvm::OwningPtr<ASTUnit> Unit( 2049 ASTUnit::LoadFromCommandLine(Args.data(), Args.data() + Args.size(), 2050 Diags, 2051 CXXIdx->getClangResourcesPath(), 2052 CXXIdx->getOnlyLocalDecls(), 2053 RemappedFiles.data(), 2054 RemappedFiles.size(), 2055 /*CaptureDiagnostics=*/true, 2056 PrecompilePreamble, 2057 CompleteTranslationUnit, 2058 CacheCodeCompetionResults)); 2059 2060 if (NumErrors != Diags->getNumErrors()) { 2061 // Make sure to check that 'Unit' is non-NULL. 2062 if (CXXIdx->getDisplayDiagnostics() && Unit.get()) { 2063 for (ASTUnit::stored_diag_iterator D = Unit->stored_diag_begin(), 2064 DEnd = Unit->stored_diag_end(); 2065 D != DEnd; ++D) { 2066 CXStoredDiagnostic Diag(*D, Unit->getASTContext().getLangOptions()); 2067 CXString Msg = clang_formatDiagnostic(&Diag, 2068 clang_defaultDiagnosticDisplayOptions()); 2069 fprintf(stderr, "%s\n", clang_getCString(Msg)); 2070 clang_disposeString(Msg); 2071 } 2072#ifdef LLVM_ON_WIN32 2073 // On Windows, force a flush, since there may be multiple copies of 2074 // stderr and stdout in the file system, all with different buffers 2075 // but writing to the same device. 2076 fflush(stderr); 2077#endif 2078 } 2079 } 2080 2081 PTUI->result = Unit.take(); 2082 return; 2083 } 2084 2085 // Build up the arguments for invoking 'clang'. 2086 std::vector<const char *> argv; 2087 2088 // First add the complete path to the 'clang' executable. 2089 llvm::sys::Path ClangPath = static_cast<CIndexer *>(CIdx)->getClangPath(); 2090 argv.push_back(ClangPath.c_str()); 2091 2092 // Add the '-emit-ast' option as our execution mode for 'clang'. 2093 argv.push_back("-emit-ast"); 2094 2095 // The 'source_filename' argument is optional. If the caller does not 2096 // specify it then it is assumed that the source file is specified 2097 // in the actual argument list. 2098 if (source_filename) 2099 argv.push_back(source_filename); 2100 2101 // Generate a temporary name for the AST file. 2102 argv.push_back("-o"); 2103 char astTmpFile[L_tmpnam]; 2104 argv.push_back(tmpnam(astTmpFile)); 2105 2106 // Since the Clang C library is primarily used by batch tools dealing with 2107 // (often very broken) source code, where spell-checking can have a 2108 // significant negative impact on performance (particularly when 2109 // precompiled headers are involved), we disable it by default. 2110 // Note that we place this argument early in the list, so that it can be 2111 // overridden by the caller with "-fspell-checking". 2112 argv.push_back("-fno-spell-checking"); 2113 2114 // Remap any unsaved files to temporary files. 2115 std::vector<llvm::sys::Path> TemporaryFiles; 2116 std::vector<std::string> RemapArgs; 2117 if (RemapFiles(num_unsaved_files, unsaved_files, RemapArgs, TemporaryFiles)) 2118 return; 2119 2120 // The pointers into the elements of RemapArgs are stable because we 2121 // won't be adding anything to RemapArgs after this point. 2122 for (unsigned i = 0, e = RemapArgs.size(); i != e; ++i) 2123 argv.push_back(RemapArgs[i].c_str()); 2124 2125 // Process the compiler options, stripping off '-o', '-c', '-fsyntax-only'. 2126 for (int i = 0; i < num_command_line_args; ++i) 2127 if (const char *arg = command_line_args[i]) { 2128 if (strcmp(arg, "-o") == 0) { 2129 ++i; // Also skip the matching argument. 2130 continue; 2131 } 2132 if (strcmp(arg, "-emit-ast") == 0 || 2133 strcmp(arg, "-c") == 0 || 2134 strcmp(arg, "-fsyntax-only") == 0) { 2135 continue; 2136 } 2137 2138 // Keep the argument. 2139 argv.push_back(arg); 2140 } 2141 2142 // Generate a temporary name for the diagnostics file. 2143 char tmpFileResults[L_tmpnam]; 2144 char *tmpResultsFileName = tmpnam(tmpFileResults); 2145 llvm::sys::Path DiagnosticsFile(tmpResultsFileName); 2146 TemporaryFiles.push_back(DiagnosticsFile); 2147 argv.push_back("-fdiagnostics-binary"); 2148 2149 // Do we need the detailed preprocessing record? 2150 if (options & CXTranslationUnit_DetailedPreprocessingRecord) { 2151 argv.push_back("-Xclang"); 2152 argv.push_back("-detailed-preprocessing-record"); 2153 } 2154 2155 // Add the null terminator. 2156 argv.push_back(NULL); 2157 2158 // Invoke 'clang'. 2159 llvm::sys::Path DevNull; // leave empty, causes redirection to /dev/null 2160 // on Unix or NUL (Windows). 2161 std::string ErrMsg; 2162 const llvm::sys::Path *Redirects[] = { &DevNull, &DevNull, &DiagnosticsFile, 2163 NULL }; 2164 llvm::sys::Program::ExecuteAndWait(ClangPath, &argv[0], /* env */ NULL, 2165 /* redirects */ &Redirects[0], 2166 /* secondsToWait */ 0, /* memoryLimits */ 0, &ErrMsg); 2167 2168 if (!ErrMsg.empty()) { 2169 std::string AllArgs; 2170 for (std::vector<const char*>::iterator I = argv.begin(), E = argv.end(); 2171 I != E; ++I) { 2172 AllArgs += ' '; 2173 if (*I) 2174 AllArgs += *I; 2175 } 2176 2177 Diags->Report(diag::err_fe_invoking) << AllArgs << ErrMsg; 2178 } 2179 2180 ASTUnit *ATU = ASTUnit::LoadFromASTFile(astTmpFile, Diags, 2181 CXXIdx->getOnlyLocalDecls(), 2182 RemappedFiles.data(), 2183 RemappedFiles.size(), 2184 /*CaptureDiagnostics=*/true); 2185 if (ATU) { 2186 LoadSerializedDiagnostics(DiagnosticsFile, 2187 num_unsaved_files, unsaved_files, 2188 ATU->getFileManager(), 2189 ATU->getSourceManager(), 2190 ATU->getStoredDiagnostics()); 2191 } else if (CXXIdx->getDisplayDiagnostics()) { 2192 // We failed to load the ASTUnit, but we can still deserialize the 2193 // diagnostics and emit them. 2194 FileManager FileMgr; 2195 Diagnostic Diag; 2196 SourceManager SourceMgr(Diag); 2197 // FIXME: Faked LangOpts! 2198 LangOptions LangOpts; 2199 llvm::SmallVector<StoredDiagnostic, 4> Diags; 2200 LoadSerializedDiagnostics(DiagnosticsFile, 2201 num_unsaved_files, unsaved_files, 2202 FileMgr, SourceMgr, Diags); 2203 for (llvm::SmallVector<StoredDiagnostic, 4>::iterator D = Diags.begin(), 2204 DEnd = Diags.end(); 2205 D != DEnd; ++D) { 2206 CXStoredDiagnostic Diag(*D, LangOpts); 2207 CXString Msg = clang_formatDiagnostic(&Diag, 2208 clang_defaultDiagnosticDisplayOptions()); 2209 fprintf(stderr, "%s\n", clang_getCString(Msg)); 2210 clang_disposeString(Msg); 2211 } 2212 2213#ifdef LLVM_ON_WIN32 2214 // On Windows, force a flush, since there may be multiple copies of 2215 // stderr and stdout in the file system, all with different buffers 2216 // but writing to the same device. 2217 fflush(stderr); 2218#endif 2219 } 2220 2221 if (ATU) { 2222 // Make the translation unit responsible for destroying all temporary files. 2223 for (unsigned i = 0, e = TemporaryFiles.size(); i != e; ++i) 2224 ATU->addTemporaryFile(TemporaryFiles[i]); 2225 ATU->addTemporaryFile(llvm::sys::Path(ATU->getASTFileName())); 2226 } else { 2227 // Destroy all of the temporary files now; they can't be referenced any 2228 // longer. 2229 llvm::sys::Path(astTmpFile).eraseFromDisk(); 2230 for (unsigned i = 0, e = TemporaryFiles.size(); i != e; ++i) 2231 TemporaryFiles[i].eraseFromDisk(); 2232 } 2233 2234 PTUI->result = ATU; 2235} 2236CXTranslationUnit clang_parseTranslationUnit(CXIndex CIdx, 2237 const char *source_filename, 2238 const char * const *command_line_args, 2239 int num_command_line_args, 2240 struct CXUnsavedFile *unsaved_files, 2241 unsigned num_unsaved_files, 2242 unsigned options) { 2243 ParseTranslationUnitInfo PTUI = { CIdx, source_filename, command_line_args, 2244 num_command_line_args, unsaved_files, num_unsaved_files, 2245 options, 0 }; 2246 llvm::CrashRecoveryContext CRC; 2247 2248 if (!CRC.RunSafely(clang_parseTranslationUnit_Impl, &PTUI)) { 2249 fprintf(stderr, "libclang: crash detected during parsing: {\n"); 2250 fprintf(stderr, " 'source_filename' : '%s'\n", source_filename); 2251 fprintf(stderr, " 'command_line_args' : ["); 2252 for (int i = 0; i != num_command_line_args; ++i) { 2253 if (i) 2254 fprintf(stderr, ", "); 2255 fprintf(stderr, "'%s'", command_line_args[i]); 2256 } 2257 fprintf(stderr, "],\n"); 2258 fprintf(stderr, " 'unsaved_files' : ["); 2259 for (unsigned i = 0; i != num_unsaved_files; ++i) { 2260 if (i) 2261 fprintf(stderr, ", "); 2262 fprintf(stderr, "('%s', '...', %ld)", unsaved_files[i].Filename, 2263 unsaved_files[i].Length); 2264 } 2265 fprintf(stderr, "],\n"); 2266 fprintf(stderr, " 'options' : %d,\n", options); 2267 fprintf(stderr, "}\n"); 2268 2269 return 0; 2270 } 2271 2272 return PTUI.result; 2273} 2274 2275unsigned clang_defaultSaveOptions(CXTranslationUnit TU) { 2276 return CXSaveTranslationUnit_None; 2277} 2278 2279int clang_saveTranslationUnit(CXTranslationUnit TU, const char *FileName, 2280 unsigned options) { 2281 if (!TU) 2282 return 1; 2283 2284 return static_cast<ASTUnit *>(TU)->Save(FileName); 2285} 2286 2287void clang_disposeTranslationUnit(CXTranslationUnit CTUnit) { 2288 if (CTUnit) { 2289 // If the translation unit has been marked as unsafe to free, just discard 2290 // it. 2291 if (static_cast<ASTUnit *>(CTUnit)->isUnsafeToFree()) 2292 return; 2293 2294 delete static_cast<ASTUnit *>(CTUnit); 2295 } 2296} 2297 2298unsigned clang_defaultReparseOptions(CXTranslationUnit TU) { 2299 return CXReparse_None; 2300} 2301 2302struct ReparseTranslationUnitInfo { 2303 CXTranslationUnit TU; 2304 unsigned num_unsaved_files; 2305 struct CXUnsavedFile *unsaved_files; 2306 unsigned options; 2307 int result; 2308}; 2309static void clang_reparseTranslationUnit_Impl(void *UserData) { 2310 ReparseTranslationUnitInfo *RTUI = 2311 static_cast<ReparseTranslationUnitInfo*>(UserData); 2312 CXTranslationUnit TU = RTUI->TU; 2313 unsigned num_unsaved_files = RTUI->num_unsaved_files; 2314 struct CXUnsavedFile *unsaved_files = RTUI->unsaved_files; 2315 unsigned options = RTUI->options; 2316 (void) options; 2317 RTUI->result = 1; 2318 2319 if (!TU) 2320 return; 2321 2322 llvm::SmallVector<ASTUnit::RemappedFile, 4> RemappedFiles; 2323 for (unsigned I = 0; I != num_unsaved_files; ++I) { 2324 llvm::StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length); 2325 const llvm::MemoryBuffer *Buffer 2326 = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename); 2327 RemappedFiles.push_back(std::make_pair(unsaved_files[I].Filename, 2328 Buffer)); 2329 } 2330 2331 if (!static_cast<ASTUnit *>(TU)->Reparse(RemappedFiles.data(), 2332 RemappedFiles.size())) 2333 RTUI->result = 0; 2334} 2335int clang_reparseTranslationUnit(CXTranslationUnit TU, 2336 unsigned num_unsaved_files, 2337 struct CXUnsavedFile *unsaved_files, 2338 unsigned options) { 2339 ReparseTranslationUnitInfo RTUI = { TU, num_unsaved_files, unsaved_files, 2340 options, 0 }; 2341 llvm::CrashRecoveryContext CRC; 2342 2343 if (!CRC.RunSafely(clang_reparseTranslationUnit_Impl, &RTUI)) { 2344 fprintf(stderr, "libclang: crash detected during reparsing\n"); 2345 static_cast<ASTUnit *>(TU)->setUnsafeToFree(true); 2346 return 1; 2347 } 2348 2349 return RTUI.result; 2350} 2351 2352 2353CXString clang_getTranslationUnitSpelling(CXTranslationUnit CTUnit) { 2354 if (!CTUnit) 2355 return createCXString(""); 2356 2357 ASTUnit *CXXUnit = static_cast<ASTUnit *>(CTUnit); 2358 return createCXString(CXXUnit->getOriginalSourceFileName(), true); 2359} 2360 2361CXCursor clang_getTranslationUnitCursor(CXTranslationUnit TU) { 2362 CXCursor Result = { CXCursor_TranslationUnit, { 0, 0, TU } }; 2363 return Result; 2364} 2365 2366} // end: extern "C" 2367 2368//===----------------------------------------------------------------------===// 2369// CXSourceLocation and CXSourceRange Operations. 2370//===----------------------------------------------------------------------===// 2371 2372extern "C" { 2373CXSourceLocation clang_getNullLocation() { 2374 CXSourceLocation Result = { { 0, 0 }, 0 }; 2375 return Result; 2376} 2377 2378unsigned clang_equalLocations(CXSourceLocation loc1, CXSourceLocation loc2) { 2379 return (loc1.ptr_data[0] == loc2.ptr_data[0] && 2380 loc1.ptr_data[1] == loc2.ptr_data[1] && 2381 loc1.int_data == loc2.int_data); 2382} 2383 2384CXSourceLocation clang_getLocation(CXTranslationUnit tu, 2385 CXFile file, 2386 unsigned line, 2387 unsigned column) { 2388 if (!tu || !file) 2389 return clang_getNullLocation(); 2390 2391 ASTUnit *CXXUnit = static_cast<ASTUnit *>(tu); 2392 SourceLocation SLoc 2393 = CXXUnit->getSourceManager().getLocation( 2394 static_cast<const FileEntry *>(file), 2395 line, column); 2396 2397 return cxloc::translateSourceLocation(CXXUnit->getASTContext(), SLoc); 2398} 2399 2400CXSourceRange clang_getNullRange() { 2401 CXSourceRange Result = { { 0, 0 }, 0, 0 }; 2402 return Result; 2403} 2404 2405CXSourceRange clang_getRange(CXSourceLocation begin, CXSourceLocation end) { 2406 if (begin.ptr_data[0] != end.ptr_data[0] || 2407 begin.ptr_data[1] != end.ptr_data[1]) 2408 return clang_getNullRange(); 2409 2410 CXSourceRange Result = { { begin.ptr_data[0], begin.ptr_data[1] }, 2411 begin.int_data, end.int_data }; 2412 return Result; 2413} 2414 2415void clang_getInstantiationLocation(CXSourceLocation location, 2416 CXFile *file, 2417 unsigned *line, 2418 unsigned *column, 2419 unsigned *offset) { 2420 SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); 2421 2422 if (!location.ptr_data[0] || Loc.isInvalid()) { 2423 if (file) 2424 *file = 0; 2425 if (line) 2426 *line = 0; 2427 if (column) 2428 *column = 0; 2429 if (offset) 2430 *offset = 0; 2431 return; 2432 } 2433 2434 const SourceManager &SM = 2435 *static_cast<const SourceManager*>(location.ptr_data[0]); 2436 SourceLocation InstLoc = SM.getInstantiationLoc(Loc); 2437 2438 if (file) 2439 *file = (void *)SM.getFileEntryForID(SM.getFileID(InstLoc)); 2440 if (line) 2441 *line = SM.getInstantiationLineNumber(InstLoc); 2442 if (column) 2443 *column = SM.getInstantiationColumnNumber(InstLoc); 2444 if (offset) 2445 *offset = SM.getDecomposedLoc(InstLoc).second; 2446} 2447 2448CXSourceLocation clang_getRangeStart(CXSourceRange range) { 2449 CXSourceLocation Result = { { range.ptr_data[0], range.ptr_data[1] }, 2450 range.begin_int_data }; 2451 return Result; 2452} 2453 2454CXSourceLocation clang_getRangeEnd(CXSourceRange range) { 2455 CXSourceLocation Result = { { range.ptr_data[0], range.ptr_data[1] }, 2456 range.end_int_data }; 2457 return Result; 2458} 2459 2460} // end: extern "C" 2461 2462//===----------------------------------------------------------------------===// 2463// CXFile Operations. 2464//===----------------------------------------------------------------------===// 2465 2466extern "C" { 2467CXString clang_getFileName(CXFile SFile) { 2468 if (!SFile) 2469 return createCXString(NULL); 2470 2471 FileEntry *FEnt = static_cast<FileEntry *>(SFile); 2472 return createCXString(FEnt->getName()); 2473} 2474 2475time_t clang_getFileTime(CXFile SFile) { 2476 if (!SFile) 2477 return 0; 2478 2479 FileEntry *FEnt = static_cast<FileEntry *>(SFile); 2480 return FEnt->getModificationTime(); 2481} 2482 2483CXFile clang_getFile(CXTranslationUnit tu, const char *file_name) { 2484 if (!tu) 2485 return 0; 2486 2487 ASTUnit *CXXUnit = static_cast<ASTUnit *>(tu); 2488 2489 FileManager &FMgr = CXXUnit->getFileManager(); 2490 const FileEntry *File = FMgr.getFile(file_name, file_name+strlen(file_name)); 2491 return const_cast<FileEntry *>(File); 2492} 2493 2494} // end: extern "C" 2495 2496//===----------------------------------------------------------------------===// 2497// CXCursor Operations. 2498//===----------------------------------------------------------------------===// 2499 2500static Decl *getDeclFromExpr(Stmt *E) { 2501 if (DeclRefExpr *RefExpr = dyn_cast<DeclRefExpr>(E)) 2502 return RefExpr->getDecl(); 2503 if (MemberExpr *ME = dyn_cast<MemberExpr>(E)) 2504 return ME->getMemberDecl(); 2505 if (ObjCIvarRefExpr *RE = dyn_cast<ObjCIvarRefExpr>(E)) 2506 return RE->getDecl(); 2507 2508 if (CallExpr *CE = dyn_cast<CallExpr>(E)) 2509 return getDeclFromExpr(CE->getCallee()); 2510 if (CastExpr *CE = dyn_cast<CastExpr>(E)) 2511 return getDeclFromExpr(CE->getSubExpr()); 2512 if (ObjCMessageExpr *OME = dyn_cast<ObjCMessageExpr>(E)) 2513 return OME->getMethodDecl(); 2514 2515 return 0; 2516} 2517 2518static SourceLocation getLocationFromExpr(Expr *E) { 2519 if (ObjCMessageExpr *Msg = dyn_cast<ObjCMessageExpr>(E)) 2520 return /*FIXME:*/Msg->getLeftLoc(); 2521 if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) 2522 return DRE->getLocation(); 2523 if (MemberExpr *Member = dyn_cast<MemberExpr>(E)) 2524 return Member->getMemberLoc(); 2525 if (ObjCIvarRefExpr *Ivar = dyn_cast<ObjCIvarRefExpr>(E)) 2526 return Ivar->getLocation(); 2527 return E->getLocStart(); 2528} 2529 2530extern "C" { 2531 2532unsigned clang_visitChildren(CXCursor parent, 2533 CXCursorVisitor visitor, 2534 CXClientData client_data) { 2535 ASTUnit *CXXUnit = getCursorASTUnit(parent); 2536 2537 CursorVisitor CursorVis(CXXUnit, visitor, client_data, 2538 CXXUnit->getMaxPCHLevel()); 2539 return CursorVis.VisitChildren(parent); 2540} 2541 2542static CXString getDeclSpelling(Decl *D) { 2543 NamedDecl *ND = dyn_cast_or_null<NamedDecl>(D); 2544 if (!ND) 2545 return createCXString(""); 2546 2547 if (ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(ND)) 2548 return createCXString(OMD->getSelector().getAsString()); 2549 2550 if (ObjCCategoryImplDecl *CIMP = dyn_cast<ObjCCategoryImplDecl>(ND)) 2551 // No, this isn't the same as the code below. getIdentifier() is non-virtual 2552 // and returns different names. NamedDecl returns the class name and 2553 // ObjCCategoryImplDecl returns the category name. 2554 return createCXString(CIMP->getIdentifier()->getNameStart()); 2555 2556 if (isa<UsingDirectiveDecl>(D)) 2557 return createCXString(""); 2558 2559 llvm::SmallString<1024> S; 2560 llvm::raw_svector_ostream os(S); 2561 ND->printName(os); 2562 2563 return createCXString(os.str()); 2564} 2565 2566CXString clang_getCursorSpelling(CXCursor C) { 2567 if (clang_isTranslationUnit(C.kind)) 2568 return clang_getTranslationUnitSpelling(C.data[2]); 2569 2570 if (clang_isReference(C.kind)) { 2571 switch (C.kind) { 2572 case CXCursor_ObjCSuperClassRef: { 2573 ObjCInterfaceDecl *Super = getCursorObjCSuperClassRef(C).first; 2574 return createCXString(Super->getIdentifier()->getNameStart()); 2575 } 2576 case CXCursor_ObjCClassRef: { 2577 ObjCInterfaceDecl *Class = getCursorObjCClassRef(C).first; 2578 return createCXString(Class->getIdentifier()->getNameStart()); 2579 } 2580 case CXCursor_ObjCProtocolRef: { 2581 ObjCProtocolDecl *OID = getCursorObjCProtocolRef(C).first; 2582 assert(OID && "getCursorSpelling(): Missing protocol decl"); 2583 return createCXString(OID->getIdentifier()->getNameStart()); 2584 } 2585 case CXCursor_CXXBaseSpecifier: { 2586 CXXBaseSpecifier *B = getCursorCXXBaseSpecifier(C); 2587 return createCXString(B->getType().getAsString()); 2588 } 2589 case CXCursor_TypeRef: { 2590 TypeDecl *Type = getCursorTypeRef(C).first; 2591 assert(Type && "Missing type decl"); 2592 2593 return createCXString(getCursorContext(C).getTypeDeclType(Type). 2594 getAsString()); 2595 } 2596 case CXCursor_TemplateRef: { 2597 TemplateDecl *Template = getCursorTemplateRef(C).first; 2598 assert(Template && "Missing template decl"); 2599 2600 return createCXString(Template->getNameAsString()); 2601 } 2602 2603 case CXCursor_NamespaceRef: { 2604 NamedDecl *NS = getCursorNamespaceRef(C).first; 2605 assert(NS && "Missing namespace decl"); 2606 2607 return createCXString(NS->getNameAsString()); 2608 } 2609 2610 case CXCursor_MemberRef: { 2611 FieldDecl *Field = getCursorMemberRef(C).first; 2612 assert(Field && "Missing member decl"); 2613 2614 return createCXString(Field->getNameAsString()); 2615 } 2616 2617 case CXCursor_LabelRef: { 2618 LabelStmt *Label = getCursorLabelRef(C).first; 2619 assert(Label && "Missing label"); 2620 2621 return createCXString(Label->getID()->getName()); 2622 } 2623 2624 case CXCursor_OverloadedDeclRef: { 2625 OverloadedDeclRefStorage Storage = getCursorOverloadedDeclRef(C).first; 2626 if (Decl *D = Storage.dyn_cast<Decl *>()) { 2627 if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) 2628 return createCXString(ND->getNameAsString()); 2629 return createCXString(""); 2630 } 2631 if (OverloadExpr *E = Storage.dyn_cast<OverloadExpr *>()) 2632 return createCXString(E->getName().getAsString()); 2633 OverloadedTemplateStorage *Ovl 2634 = Storage.get<OverloadedTemplateStorage*>(); 2635 if (Ovl->size() == 0) 2636 return createCXString(""); 2637 return createCXString((*Ovl->begin())->getNameAsString()); 2638 } 2639 2640 default: 2641 return createCXString("<not implemented>"); 2642 } 2643 } 2644 2645 if (clang_isExpression(C.kind)) { 2646 Decl *D = getDeclFromExpr(getCursorExpr(C)); 2647 if (D) 2648 return getDeclSpelling(D); 2649 return createCXString(""); 2650 } 2651 2652 if (clang_isStatement(C.kind)) { 2653 Stmt *S = getCursorStmt(C); 2654 if (LabelStmt *Label = dyn_cast_or_null<LabelStmt>(S)) 2655 return createCXString(Label->getID()->getName()); 2656 2657 return createCXString(""); 2658 } 2659 2660 if (C.kind == CXCursor_MacroInstantiation) 2661 return createCXString(getCursorMacroInstantiation(C)->getName() 2662 ->getNameStart()); 2663 2664 if (C.kind == CXCursor_MacroDefinition) 2665 return createCXString(getCursorMacroDefinition(C)->getName() 2666 ->getNameStart()); 2667 2668 if (clang_isDeclaration(C.kind)) 2669 return getDeclSpelling(getCursorDecl(C)); 2670 2671 return createCXString(""); 2672} 2673 2674CXString clang_getCursorKindSpelling(enum CXCursorKind Kind) { 2675 switch (Kind) { 2676 case CXCursor_FunctionDecl: 2677 return createCXString("FunctionDecl"); 2678 case CXCursor_TypedefDecl: 2679 return createCXString("TypedefDecl"); 2680 case CXCursor_EnumDecl: 2681 return createCXString("EnumDecl"); 2682 case CXCursor_EnumConstantDecl: 2683 return createCXString("EnumConstantDecl"); 2684 case CXCursor_StructDecl: 2685 return createCXString("StructDecl"); 2686 case CXCursor_UnionDecl: 2687 return createCXString("UnionDecl"); 2688 case CXCursor_ClassDecl: 2689 return createCXString("ClassDecl"); 2690 case CXCursor_FieldDecl: 2691 return createCXString("FieldDecl"); 2692 case CXCursor_VarDecl: 2693 return createCXString("VarDecl"); 2694 case CXCursor_ParmDecl: 2695 return createCXString("ParmDecl"); 2696 case CXCursor_ObjCInterfaceDecl: 2697 return createCXString("ObjCInterfaceDecl"); 2698 case CXCursor_ObjCCategoryDecl: 2699 return createCXString("ObjCCategoryDecl"); 2700 case CXCursor_ObjCProtocolDecl: 2701 return createCXString("ObjCProtocolDecl"); 2702 case CXCursor_ObjCPropertyDecl: 2703 return createCXString("ObjCPropertyDecl"); 2704 case CXCursor_ObjCIvarDecl: 2705 return createCXString("ObjCIvarDecl"); 2706 case CXCursor_ObjCInstanceMethodDecl: 2707 return createCXString("ObjCInstanceMethodDecl"); 2708 case CXCursor_ObjCClassMethodDecl: 2709 return createCXString("ObjCClassMethodDecl"); 2710 case CXCursor_ObjCImplementationDecl: 2711 return createCXString("ObjCImplementationDecl"); 2712 case CXCursor_ObjCCategoryImplDecl: 2713 return createCXString("ObjCCategoryImplDecl"); 2714 case CXCursor_CXXMethod: 2715 return createCXString("CXXMethod"); 2716 case CXCursor_UnexposedDecl: 2717 return createCXString("UnexposedDecl"); 2718 case CXCursor_ObjCSuperClassRef: 2719 return createCXString("ObjCSuperClassRef"); 2720 case CXCursor_ObjCProtocolRef: 2721 return createCXString("ObjCProtocolRef"); 2722 case CXCursor_ObjCClassRef: 2723 return createCXString("ObjCClassRef"); 2724 case CXCursor_TypeRef: 2725 return createCXString("TypeRef"); 2726 case CXCursor_TemplateRef: 2727 return createCXString("TemplateRef"); 2728 case CXCursor_NamespaceRef: 2729 return createCXString("NamespaceRef"); 2730 case CXCursor_MemberRef: 2731 return createCXString("MemberRef"); 2732 case CXCursor_LabelRef: 2733 return createCXString("LabelRef"); 2734 case CXCursor_OverloadedDeclRef: 2735 return createCXString("OverloadedDeclRef"); 2736 case CXCursor_UnexposedExpr: 2737 return createCXString("UnexposedExpr"); 2738 case CXCursor_BlockExpr: 2739 return createCXString("BlockExpr"); 2740 case CXCursor_DeclRefExpr: 2741 return createCXString("DeclRefExpr"); 2742 case CXCursor_MemberRefExpr: 2743 return createCXString("MemberRefExpr"); 2744 case CXCursor_CallExpr: 2745 return createCXString("CallExpr"); 2746 case CXCursor_ObjCMessageExpr: 2747 return createCXString("ObjCMessageExpr"); 2748 case CXCursor_UnexposedStmt: 2749 return createCXString("UnexposedStmt"); 2750 case CXCursor_LabelStmt: 2751 return createCXString("LabelStmt"); 2752 case CXCursor_InvalidFile: 2753 return createCXString("InvalidFile"); 2754 case CXCursor_InvalidCode: 2755 return createCXString("InvalidCode"); 2756 case CXCursor_NoDeclFound: 2757 return createCXString("NoDeclFound"); 2758 case CXCursor_NotImplemented: 2759 return createCXString("NotImplemented"); 2760 case CXCursor_TranslationUnit: 2761 return createCXString("TranslationUnit"); 2762 case CXCursor_UnexposedAttr: 2763 return createCXString("UnexposedAttr"); 2764 case CXCursor_IBActionAttr: 2765 return createCXString("attribute(ibaction)"); 2766 case CXCursor_IBOutletAttr: 2767 return createCXString("attribute(iboutlet)"); 2768 case CXCursor_IBOutletCollectionAttr: 2769 return createCXString("attribute(iboutletcollection)"); 2770 case CXCursor_PreprocessingDirective: 2771 return createCXString("preprocessing directive"); 2772 case CXCursor_MacroDefinition: 2773 return createCXString("macro definition"); 2774 case CXCursor_MacroInstantiation: 2775 return createCXString("macro instantiation"); 2776 case CXCursor_Namespace: 2777 return createCXString("Namespace"); 2778 case CXCursor_LinkageSpec: 2779 return createCXString("LinkageSpec"); 2780 case CXCursor_CXXBaseSpecifier: 2781 return createCXString("C++ base class specifier"); 2782 case CXCursor_Constructor: 2783 return createCXString("CXXConstructor"); 2784 case CXCursor_Destructor: 2785 return createCXString("CXXDestructor"); 2786 case CXCursor_ConversionFunction: 2787 return createCXString("CXXConversion"); 2788 case CXCursor_TemplateTypeParameter: 2789 return createCXString("TemplateTypeParameter"); 2790 case CXCursor_NonTypeTemplateParameter: 2791 return createCXString("NonTypeTemplateParameter"); 2792 case CXCursor_TemplateTemplateParameter: 2793 return createCXString("TemplateTemplateParameter"); 2794 case CXCursor_FunctionTemplate: 2795 return createCXString("FunctionTemplate"); 2796 case CXCursor_ClassTemplate: 2797 return createCXString("ClassTemplate"); 2798 case CXCursor_ClassTemplatePartialSpecialization: 2799 return createCXString("ClassTemplatePartialSpecialization"); 2800 case CXCursor_NamespaceAlias: 2801 return createCXString("NamespaceAlias"); 2802 case CXCursor_UsingDirective: 2803 return createCXString("UsingDirective"); 2804 case CXCursor_UsingDeclaration: 2805 return createCXString("UsingDeclaration"); 2806 } 2807 2808 llvm_unreachable("Unhandled CXCursorKind"); 2809 return createCXString(NULL); 2810} 2811 2812enum CXChildVisitResult GetCursorVisitor(CXCursor cursor, 2813 CXCursor parent, 2814 CXClientData client_data) { 2815 CXCursor *BestCursor = static_cast<CXCursor *>(client_data); 2816 *BestCursor = cursor; 2817 return CXChildVisit_Recurse; 2818} 2819 2820CXCursor clang_getCursor(CXTranslationUnit TU, CXSourceLocation Loc) { 2821 if (!TU) 2822 return clang_getNullCursor(); 2823 2824 ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); 2825 ASTUnit::ConcurrencyCheck Check(*CXXUnit); 2826 2827 // Translate the given source location to make it point at the beginning of 2828 // the token under the cursor. 2829 SourceLocation SLoc = cxloc::translateSourceLocation(Loc); 2830 2831 // Guard against an invalid SourceLocation, or we may assert in one 2832 // of the following calls. 2833 if (SLoc.isInvalid()) 2834 return clang_getNullCursor(); 2835 2836 SLoc = Lexer::GetBeginningOfToken(SLoc, CXXUnit->getSourceManager(), 2837 CXXUnit->getASTContext().getLangOptions()); 2838 2839 CXCursor Result = MakeCXCursorInvalid(CXCursor_NoDeclFound); 2840 if (SLoc.isValid()) { 2841 // FIXME: Would be great to have a "hint" cursor, then walk from that 2842 // hint cursor upward until we find a cursor whose source range encloses 2843 // the region of interest, rather than starting from the translation unit. 2844 CXCursor Parent = clang_getTranslationUnitCursor(CXXUnit); 2845 CursorVisitor CursorVis(CXXUnit, GetCursorVisitor, &Result, 2846 Decl::MaxPCHLevel, SourceLocation(SLoc)); 2847 CursorVis.VisitChildren(Parent); 2848 } 2849 return Result; 2850} 2851 2852CXCursor clang_getNullCursor(void) { 2853 return MakeCXCursorInvalid(CXCursor_InvalidFile); 2854} 2855 2856unsigned clang_equalCursors(CXCursor X, CXCursor Y) { 2857 return X == Y; 2858} 2859 2860unsigned clang_isInvalid(enum CXCursorKind K) { 2861 return K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid; 2862} 2863 2864unsigned clang_isDeclaration(enum CXCursorKind K) { 2865 return K >= CXCursor_FirstDecl && K <= CXCursor_LastDecl; 2866} 2867 2868unsigned clang_isReference(enum CXCursorKind K) { 2869 return K >= CXCursor_FirstRef && K <= CXCursor_LastRef; 2870} 2871 2872unsigned clang_isExpression(enum CXCursorKind K) { 2873 return K >= CXCursor_FirstExpr && K <= CXCursor_LastExpr; 2874} 2875 2876unsigned clang_isStatement(enum CXCursorKind K) { 2877 return K >= CXCursor_FirstStmt && K <= CXCursor_LastStmt; 2878} 2879 2880unsigned clang_isTranslationUnit(enum CXCursorKind K) { 2881 return K == CXCursor_TranslationUnit; 2882} 2883 2884unsigned clang_isPreprocessing(enum CXCursorKind K) { 2885 return K >= CXCursor_FirstPreprocessing && K <= CXCursor_LastPreprocessing; 2886} 2887 2888unsigned clang_isUnexposed(enum CXCursorKind K) { 2889 switch (K) { 2890 case CXCursor_UnexposedDecl: 2891 case CXCursor_UnexposedExpr: 2892 case CXCursor_UnexposedStmt: 2893 case CXCursor_UnexposedAttr: 2894 return true; 2895 default: 2896 return false; 2897 } 2898} 2899 2900CXCursorKind clang_getCursorKind(CXCursor C) { 2901 return C.kind; 2902} 2903 2904CXSourceLocation clang_getCursorLocation(CXCursor C) { 2905 if (clang_isReference(C.kind)) { 2906 switch (C.kind) { 2907 case CXCursor_ObjCSuperClassRef: { 2908 std::pair<ObjCInterfaceDecl *, SourceLocation> P 2909 = getCursorObjCSuperClassRef(C); 2910 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2911 } 2912 2913 case CXCursor_ObjCProtocolRef: { 2914 std::pair<ObjCProtocolDecl *, SourceLocation> P 2915 = getCursorObjCProtocolRef(C); 2916 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2917 } 2918 2919 case CXCursor_ObjCClassRef: { 2920 std::pair<ObjCInterfaceDecl *, SourceLocation> P 2921 = getCursorObjCClassRef(C); 2922 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2923 } 2924 2925 case CXCursor_TypeRef: { 2926 std::pair<TypeDecl *, SourceLocation> P = getCursorTypeRef(C); 2927 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2928 } 2929 2930 case CXCursor_TemplateRef: { 2931 std::pair<TemplateDecl *, SourceLocation> P = getCursorTemplateRef(C); 2932 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2933 } 2934 2935 case CXCursor_NamespaceRef: { 2936 std::pair<NamedDecl *, SourceLocation> P = getCursorNamespaceRef(C); 2937 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2938 } 2939 2940 case CXCursor_MemberRef: { 2941 std::pair<FieldDecl *, SourceLocation> P = getCursorMemberRef(C); 2942 return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); 2943 } 2944 2945 case CXCursor_CXXBaseSpecifier: { 2946 // FIXME: Figure out what location to return for a CXXBaseSpecifier. 2947 return clang_getNullLocation(); 2948 } 2949 2950 case CXCursor_LabelRef: { 2951 std::pair<LabelStmt *, SourceLocation> P = getCursorLabelRef(C); 2952 return cxloc::translateSourceLocation(getCursorContext(C), P.second); 2953 } 2954 2955 case CXCursor_OverloadedDeclRef: 2956 return cxloc::translateSourceLocation(getCursorContext(C), 2957 getCursorOverloadedDeclRef(C).second); 2958 2959 default: 2960 // FIXME: Need a way to enumerate all non-reference cases. 2961 llvm_unreachable("Missed a reference kind"); 2962 } 2963 } 2964 2965 if (clang_isExpression(C.kind)) 2966 return cxloc::translateSourceLocation(getCursorContext(C), 2967 getLocationFromExpr(getCursorExpr(C))); 2968 2969 if (clang_isStatement(C.kind)) 2970 return cxloc::translateSourceLocation(getCursorContext(C), 2971 getCursorStmt(C)->getLocStart()); 2972 2973 if (C.kind == CXCursor_PreprocessingDirective) { 2974 SourceLocation L = cxcursor::getCursorPreprocessingDirective(C).getBegin(); 2975 return cxloc::translateSourceLocation(getCursorContext(C), L); 2976 } 2977 2978 if (C.kind == CXCursor_MacroInstantiation) { 2979 SourceLocation L 2980 = cxcursor::getCursorMacroInstantiation(C)->getSourceRange().getBegin(); 2981 return cxloc::translateSourceLocation(getCursorContext(C), L); 2982 } 2983 2984 if (C.kind == CXCursor_MacroDefinition) { 2985 SourceLocation L = cxcursor::getCursorMacroDefinition(C)->getLocation(); 2986 return cxloc::translateSourceLocation(getCursorContext(C), L); 2987 } 2988 2989 if (C.kind < CXCursor_FirstDecl || C.kind > CXCursor_LastDecl) 2990 return clang_getNullLocation(); 2991 2992 Decl *D = getCursorDecl(C); 2993 SourceLocation Loc = D->getLocation(); 2994 if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(D)) 2995 Loc = Class->getClassLoc(); 2996 return cxloc::translateSourceLocation(getCursorContext(C), Loc); 2997} 2998 2999} // end extern "C" 3000 3001static SourceRange getRawCursorExtent(CXCursor C) { 3002 if (clang_isReference(C.kind)) { 3003 switch (C.kind) { 3004 case CXCursor_ObjCSuperClassRef: 3005 return getCursorObjCSuperClassRef(C).second; 3006 3007 case CXCursor_ObjCProtocolRef: 3008 return getCursorObjCProtocolRef(C).second; 3009 3010 case CXCursor_ObjCClassRef: 3011 return getCursorObjCClassRef(C).second; 3012 3013 case CXCursor_TypeRef: 3014 return getCursorTypeRef(C).second; 3015 3016 case CXCursor_TemplateRef: 3017 return getCursorTemplateRef(C).second; 3018 3019 case CXCursor_NamespaceRef: 3020 return getCursorNamespaceRef(C).second; 3021 3022 case CXCursor_MemberRef: 3023 return getCursorMemberRef(C).second; 3024 3025 case CXCursor_CXXBaseSpecifier: 3026 // FIXME: Figure out what source range to use for a CXBaseSpecifier. 3027 return SourceRange(); 3028 3029 case CXCursor_LabelRef: 3030 return getCursorLabelRef(C).second; 3031 3032 case CXCursor_OverloadedDeclRef: 3033 return getCursorOverloadedDeclRef(C).second; 3034 3035 default: 3036 // FIXME: Need a way to enumerate all non-reference cases. 3037 llvm_unreachable("Missed a reference kind"); 3038 } 3039 } 3040 3041 if (clang_isExpression(C.kind)) 3042 return getCursorExpr(C)->getSourceRange(); 3043 3044 if (clang_isStatement(C.kind)) 3045 return getCursorStmt(C)->getSourceRange(); 3046 3047 if (C.kind == CXCursor_PreprocessingDirective) 3048 return cxcursor::getCursorPreprocessingDirective(C); 3049 3050 if (C.kind == CXCursor_MacroInstantiation) 3051 return cxcursor::getCursorMacroInstantiation(C)->getSourceRange(); 3052 3053 if (C.kind == CXCursor_MacroDefinition) 3054 return cxcursor::getCursorMacroDefinition(C)->getSourceRange(); 3055 3056 if (C.kind >= CXCursor_FirstDecl && C.kind <= CXCursor_LastDecl) 3057 return getCursorDecl(C)->getSourceRange(); 3058 3059 return SourceRange(); 3060} 3061 3062extern "C" { 3063 3064CXSourceRange clang_getCursorExtent(CXCursor C) { 3065 SourceRange R = getRawCursorExtent(C); 3066 if (R.isInvalid()) 3067 return clang_getNullRange(); 3068 3069 return cxloc::translateSourceRange(getCursorContext(C), R); 3070} 3071 3072CXCursor clang_getCursorReferenced(CXCursor C) { 3073 if (clang_isInvalid(C.kind)) 3074 return clang_getNullCursor(); 3075 3076 ASTUnit *CXXUnit = getCursorASTUnit(C); 3077 if (clang_isDeclaration(C.kind)) { 3078 Decl *D = getCursorDecl(C); 3079 if (UsingDecl *Using = dyn_cast<UsingDecl>(D)) 3080 return MakeCursorOverloadedDeclRef(Using, D->getLocation(), CXXUnit); 3081 if (ObjCClassDecl *Classes = dyn_cast<ObjCClassDecl>(D)) 3082 return MakeCursorOverloadedDeclRef(Classes, D->getLocation(), CXXUnit); 3083 if (ObjCForwardProtocolDecl *Protocols 3084 = dyn_cast<ObjCForwardProtocolDecl>(D)) 3085 return MakeCursorOverloadedDeclRef(Protocols, D->getLocation(), CXXUnit); 3086 3087 return C; 3088 } 3089 3090 if (clang_isExpression(C.kind)) { 3091 Expr *E = getCursorExpr(C); 3092 Decl *D = getDeclFromExpr(E); 3093 if (D) 3094 return MakeCXCursor(D, CXXUnit); 3095 3096 if (OverloadExpr *Ovl = dyn_cast_or_null<OverloadExpr>(E)) 3097 return MakeCursorOverloadedDeclRef(Ovl, CXXUnit); 3098 3099 return clang_getNullCursor(); 3100 } 3101 3102 if (clang_isStatement(C.kind)) { 3103 Stmt *S = getCursorStmt(C); 3104 if (GotoStmt *Goto = dyn_cast_or_null<GotoStmt>(S)) 3105 return MakeCXCursor(Goto->getLabel(), getCursorDecl(C), 3106 getCursorASTUnit(C)); 3107 3108 return clang_getNullCursor(); 3109 } 3110 3111 if (C.kind == CXCursor_MacroInstantiation) { 3112 if (MacroDefinition *Def = getCursorMacroInstantiation(C)->getDefinition()) 3113 return MakeMacroDefinitionCursor(Def, CXXUnit); 3114 } 3115 3116 if (!clang_isReference(C.kind)) 3117 return clang_getNullCursor(); 3118 3119 switch (C.kind) { 3120 case CXCursor_ObjCSuperClassRef: 3121 return MakeCXCursor(getCursorObjCSuperClassRef(C).first, CXXUnit); 3122 3123 case CXCursor_ObjCProtocolRef: { 3124 return MakeCXCursor(getCursorObjCProtocolRef(C).first, CXXUnit); 3125 3126 case CXCursor_ObjCClassRef: 3127 return MakeCXCursor(getCursorObjCClassRef(C).first, CXXUnit); 3128 3129 case CXCursor_TypeRef: 3130 return MakeCXCursor(getCursorTypeRef(C).first, CXXUnit); 3131 3132 case CXCursor_TemplateRef: 3133 return MakeCXCursor(getCursorTemplateRef(C).first, CXXUnit); 3134 3135 case CXCursor_NamespaceRef: 3136 return MakeCXCursor(getCursorNamespaceRef(C).first, CXXUnit); 3137 3138 case CXCursor_MemberRef: 3139 return MakeCXCursor(getCursorMemberRef(C).first, CXXUnit); 3140 3141 case CXCursor_CXXBaseSpecifier: { 3142 CXXBaseSpecifier *B = cxcursor::getCursorCXXBaseSpecifier(C); 3143 return clang_getTypeDeclaration(cxtype::MakeCXType(B->getType(), 3144 CXXUnit)); 3145 } 3146 3147 case CXCursor_LabelRef: 3148 // FIXME: We end up faking the "parent" declaration here because we 3149 // don't want to make CXCursor larger. 3150 return MakeCXCursor(getCursorLabelRef(C).first, 3151 CXXUnit->getASTContext().getTranslationUnitDecl(), 3152 CXXUnit); 3153 3154 case CXCursor_OverloadedDeclRef: 3155 return C; 3156 3157 default: 3158 // We would prefer to enumerate all non-reference cursor kinds here. 3159 llvm_unreachable("Unhandled reference cursor kind"); 3160 break; 3161 } 3162 } 3163 3164 return clang_getNullCursor(); 3165} 3166 3167CXCursor clang_getCursorDefinition(CXCursor C) { 3168 if (clang_isInvalid(C.kind)) 3169 return clang_getNullCursor(); 3170 3171 ASTUnit *CXXUnit = getCursorASTUnit(C); 3172 3173 bool WasReference = false; 3174 if (clang_isReference(C.kind) || clang_isExpression(C.kind)) { 3175 C = clang_getCursorReferenced(C); 3176 WasReference = true; 3177 } 3178 3179 if (C.kind == CXCursor_MacroInstantiation) 3180 return clang_getCursorReferenced(C); 3181 3182 if (!clang_isDeclaration(C.kind)) 3183 return clang_getNullCursor(); 3184 3185 Decl *D = getCursorDecl(C); 3186 if (!D) 3187 return clang_getNullCursor(); 3188 3189 switch (D->getKind()) { 3190 // Declaration kinds that don't really separate the notions of 3191 // declaration and definition. 3192 case Decl::Namespace: 3193 case Decl::Typedef: 3194 case Decl::TemplateTypeParm: 3195 case Decl::EnumConstant: 3196 case Decl::Field: 3197 case Decl::ObjCIvar: 3198 case Decl::ObjCAtDefsField: 3199 case Decl::ImplicitParam: 3200 case Decl::ParmVar: 3201 case Decl::NonTypeTemplateParm: 3202 case Decl::TemplateTemplateParm: 3203 case Decl::ObjCCategoryImpl: 3204 case Decl::ObjCImplementation: 3205 case Decl::AccessSpec: 3206 case Decl::LinkageSpec: 3207 case Decl::ObjCPropertyImpl: 3208 case Decl::FileScopeAsm: 3209 case Decl::StaticAssert: 3210 case Decl::Block: 3211 return C; 3212 3213 // Declaration kinds that don't make any sense here, but are 3214 // nonetheless harmless. 3215 case Decl::TranslationUnit: 3216 break; 3217 3218 // Declaration kinds for which the definition is not resolvable. 3219 case Decl::UnresolvedUsingTypename: 3220 case Decl::UnresolvedUsingValue: 3221 break; 3222 3223 case Decl::UsingDirective: 3224 return MakeCXCursor(cast<UsingDirectiveDecl>(D)->getNominatedNamespace(), 3225 CXXUnit); 3226 3227 case Decl::NamespaceAlias: 3228 return MakeCXCursor(cast<NamespaceAliasDecl>(D)->getNamespace(), CXXUnit); 3229 3230 case Decl::Enum: 3231 case Decl::Record: 3232 case Decl::CXXRecord: 3233 case Decl::ClassTemplateSpecialization: 3234 case Decl::ClassTemplatePartialSpecialization: 3235 if (TagDecl *Def = cast<TagDecl>(D)->getDefinition()) 3236 return MakeCXCursor(Def, CXXUnit); 3237 return clang_getNullCursor(); 3238 3239 case Decl::Function: 3240 case Decl::CXXMethod: 3241 case Decl::CXXConstructor: 3242 case Decl::CXXDestructor: 3243 case Decl::CXXConversion: { 3244 const FunctionDecl *Def = 0; 3245 if (cast<FunctionDecl>(D)->getBody(Def)) 3246 return MakeCXCursor(const_cast<FunctionDecl *>(Def), CXXUnit); 3247 return clang_getNullCursor(); 3248 } 3249 3250 case Decl::Var: { 3251 // Ask the variable if it has a definition. 3252 if (VarDecl *Def = cast<VarDecl>(D)->getDefinition()) 3253 return MakeCXCursor(Def, CXXUnit); 3254 return clang_getNullCursor(); 3255 } 3256 3257 case Decl::FunctionTemplate: { 3258 const FunctionDecl *Def = 0; 3259 if (cast<FunctionTemplateDecl>(D)->getTemplatedDecl()->getBody(Def)) 3260 return MakeCXCursor(Def->getDescribedFunctionTemplate(), CXXUnit); 3261 return clang_getNullCursor(); 3262 } 3263 3264 case Decl::ClassTemplate: { 3265 if (RecordDecl *Def = cast<ClassTemplateDecl>(D)->getTemplatedDecl() 3266 ->getDefinition()) 3267 return MakeCXCursor(cast<CXXRecordDecl>(Def)->getDescribedClassTemplate(), 3268 CXXUnit); 3269 return clang_getNullCursor(); 3270 } 3271 3272 case Decl::Using: 3273 return MakeCursorOverloadedDeclRef(cast<UsingDecl>(D), 3274 D->getLocation(), CXXUnit); 3275 3276 case Decl::UsingShadow: 3277 return clang_getCursorDefinition( 3278 MakeCXCursor(cast<UsingShadowDecl>(D)->getTargetDecl(), 3279 CXXUnit)); 3280 3281 case Decl::ObjCMethod: { 3282 ObjCMethodDecl *Method = cast<ObjCMethodDecl>(D); 3283 if (Method->isThisDeclarationADefinition()) 3284 return C; 3285 3286 // Dig out the method definition in the associated 3287 // @implementation, if we have it. 3288 // FIXME: The ASTs should make finding the definition easier. 3289 if (ObjCInterfaceDecl *Class 3290 = dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext())) 3291 if (ObjCImplementationDecl *ClassImpl = Class->getImplementation()) 3292 if (ObjCMethodDecl *Def = ClassImpl->getMethod(Method->getSelector(), 3293 Method->isInstanceMethod())) 3294 if (Def->isThisDeclarationADefinition()) 3295 return MakeCXCursor(Def, CXXUnit); 3296 3297 return clang_getNullCursor(); 3298 } 3299 3300 case Decl::ObjCCategory: 3301 if (ObjCCategoryImplDecl *Impl 3302 = cast<ObjCCategoryDecl>(D)->getImplementation()) 3303 return MakeCXCursor(Impl, CXXUnit); 3304 return clang_getNullCursor(); 3305 3306 case Decl::ObjCProtocol: 3307 if (!cast<ObjCProtocolDecl>(D)->isForwardDecl()) 3308 return C; 3309 return clang_getNullCursor(); 3310 3311 case Decl::ObjCInterface: 3312 // There are two notions of a "definition" for an Objective-C 3313 // class: the interface and its implementation. When we resolved a 3314 // reference to an Objective-C class, produce the @interface as 3315 // the definition; when we were provided with the interface, 3316 // produce the @implementation as the definition. 3317 if (WasReference) { 3318 if (!cast<ObjCInterfaceDecl>(D)->isForwardDecl()) 3319 return C; 3320 } else if (ObjCImplementationDecl *Impl 3321 = cast<ObjCInterfaceDecl>(D)->getImplementation()) 3322 return MakeCXCursor(Impl, CXXUnit); 3323 return clang_getNullCursor(); 3324 3325 case Decl::ObjCProperty: 3326 // FIXME: We don't really know where to find the 3327 // ObjCPropertyImplDecls that implement this property. 3328 return clang_getNullCursor(); 3329 3330 case Decl::ObjCCompatibleAlias: 3331 if (ObjCInterfaceDecl *Class 3332 = cast<ObjCCompatibleAliasDecl>(D)->getClassInterface()) 3333 if (!Class->isForwardDecl()) 3334 return MakeCXCursor(Class, CXXUnit); 3335 3336 return clang_getNullCursor(); 3337 3338 case Decl::ObjCForwardProtocol: 3339 return MakeCursorOverloadedDeclRef(cast<ObjCForwardProtocolDecl>(D), 3340 D->getLocation(), CXXUnit); 3341 3342 case Decl::ObjCClass: 3343 return MakeCursorOverloadedDeclRef(cast<ObjCClassDecl>(D), D->getLocation(), 3344 CXXUnit); 3345 3346 case Decl::Friend: 3347 if (NamedDecl *Friend = cast<FriendDecl>(D)->getFriendDecl()) 3348 return clang_getCursorDefinition(MakeCXCursor(Friend, CXXUnit)); 3349 return clang_getNullCursor(); 3350 3351 case Decl::FriendTemplate: 3352 if (NamedDecl *Friend = cast<FriendTemplateDecl>(D)->getFriendDecl()) 3353 return clang_getCursorDefinition(MakeCXCursor(Friend, CXXUnit)); 3354 return clang_getNullCursor(); 3355 } 3356 3357 return clang_getNullCursor(); 3358} 3359 3360unsigned clang_isCursorDefinition(CXCursor C) { 3361 if (!clang_isDeclaration(C.kind)) 3362 return 0; 3363 3364 return clang_getCursorDefinition(C) == C; 3365} 3366 3367unsigned clang_getNumOverloadedDecls(CXCursor C) { 3368 if (!C.kind == CXCursor_OverloadedDeclRef) 3369 return 0; 3370 3371 OverloadedDeclRefStorage Storage = getCursorOverloadedDeclRef(C).first; 3372 if (OverloadExpr *E = Storage.dyn_cast<OverloadExpr *>()) 3373 return E->getNumDecls(); 3374 3375 if (OverloadedTemplateStorage *S 3376 = Storage.dyn_cast<OverloadedTemplateStorage*>()) 3377 return S->size(); 3378 3379 Decl *D = Storage.get<Decl*>(); 3380 if (UsingDecl *Using = dyn_cast<UsingDecl>(D)) 3381 return Using->getNumShadowDecls(); 3382 if (ObjCClassDecl *Classes = dyn_cast<ObjCClassDecl>(D)) 3383 return Classes->size(); 3384 if (ObjCForwardProtocolDecl *Protocols =dyn_cast<ObjCForwardProtocolDecl>(D)) 3385 return Protocols->protocol_size(); 3386 3387 return 0; 3388} 3389 3390CXCursor clang_getOverloadedDecl(CXCursor cursor, unsigned index) { 3391 if (!cursor.kind == CXCursor_OverloadedDeclRef) 3392 return clang_getNullCursor(); 3393 3394 if (index >= clang_getNumOverloadedDecls(cursor)) 3395 return clang_getNullCursor(); 3396 3397 ASTUnit *Unit = getCursorASTUnit(cursor); 3398 OverloadedDeclRefStorage Storage = getCursorOverloadedDeclRef(cursor).first; 3399 if (OverloadExpr *E = Storage.dyn_cast<OverloadExpr *>()) 3400 return MakeCXCursor(E->decls_begin()[index], Unit); 3401 3402 if (OverloadedTemplateStorage *S 3403 = Storage.dyn_cast<OverloadedTemplateStorage*>()) 3404 return MakeCXCursor(S->begin()[index], Unit); 3405 3406 Decl *D = Storage.get<Decl*>(); 3407 if (UsingDecl *Using = dyn_cast<UsingDecl>(D)) { 3408 // FIXME: This is, unfortunately, linear time. 3409 UsingDecl::shadow_iterator Pos = Using->shadow_begin(); 3410 std::advance(Pos, index); 3411 return MakeCXCursor(cast<UsingShadowDecl>(*Pos)->getTargetDecl(), Unit); 3412 } 3413 3414 if (ObjCClassDecl *Classes = dyn_cast<ObjCClassDecl>(D)) 3415 return MakeCXCursor(Classes->begin()[index].getInterface(), Unit); 3416 3417 if (ObjCForwardProtocolDecl *Protocols = dyn_cast<ObjCForwardProtocolDecl>(D)) 3418 return MakeCXCursor(Protocols->protocol_begin()[index], Unit); 3419 3420 return clang_getNullCursor(); 3421} 3422 3423void clang_getDefinitionSpellingAndExtent(CXCursor C, 3424 const char **startBuf, 3425 const char **endBuf, 3426 unsigned *startLine, 3427 unsigned *startColumn, 3428 unsigned *endLine, 3429 unsigned *endColumn) { 3430 assert(getCursorDecl(C) && "CXCursor has null decl"); 3431 NamedDecl *ND = static_cast<NamedDecl *>(getCursorDecl(C)); 3432 FunctionDecl *FD = dyn_cast<FunctionDecl>(ND); 3433 CompoundStmt *Body = dyn_cast<CompoundStmt>(FD->getBody()); 3434 3435 SourceManager &SM = FD->getASTContext().getSourceManager(); 3436 *startBuf = SM.getCharacterData(Body->getLBracLoc()); 3437 *endBuf = SM.getCharacterData(Body->getRBracLoc()); 3438 *startLine = SM.getSpellingLineNumber(Body->getLBracLoc()); 3439 *startColumn = SM.getSpellingColumnNumber(Body->getLBracLoc()); 3440 *endLine = SM.getSpellingLineNumber(Body->getRBracLoc()); 3441 *endColumn = SM.getSpellingColumnNumber(Body->getRBracLoc()); 3442} 3443 3444void clang_enableStackTraces(void) { 3445 llvm::sys::PrintStackTraceOnErrorSignal(); 3446} 3447 3448} // end: extern "C" 3449 3450//===----------------------------------------------------------------------===// 3451// Token-based Operations. 3452//===----------------------------------------------------------------------===// 3453 3454/* CXToken layout: 3455 * int_data[0]: a CXTokenKind 3456 * int_data[1]: starting token location 3457 * int_data[2]: token length 3458 * int_data[3]: reserved 3459 * ptr_data: for identifiers and keywords, an IdentifierInfo*. 3460 * otherwise unused. 3461 */ 3462extern "C" { 3463 3464CXTokenKind clang_getTokenKind(CXToken CXTok) { 3465 return static_cast<CXTokenKind>(CXTok.int_data[0]); 3466} 3467 3468CXString clang_getTokenSpelling(CXTranslationUnit TU, CXToken CXTok) { 3469 switch (clang_getTokenKind(CXTok)) { 3470 case CXToken_Identifier: 3471 case CXToken_Keyword: 3472 // We know we have an IdentifierInfo*, so use that. 3473 return createCXString(static_cast<IdentifierInfo *>(CXTok.ptr_data) 3474 ->getNameStart()); 3475 3476 case CXToken_Literal: { 3477 // We have stashed the starting pointer in the ptr_data field. Use it. 3478 const char *Text = static_cast<const char *>(CXTok.ptr_data); 3479 return createCXString(llvm::StringRef(Text, CXTok.int_data[2])); 3480 } 3481 3482 case CXToken_Punctuation: 3483 case CXToken_Comment: 3484 break; 3485 } 3486 3487 // We have to find the starting buffer pointer the hard way, by 3488 // deconstructing the source location. 3489 ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); 3490 if (!CXXUnit) 3491 return createCXString(""); 3492 3493 SourceLocation Loc = SourceLocation::getFromRawEncoding(CXTok.int_data[1]); 3494 std::pair<FileID, unsigned> LocInfo 3495 = CXXUnit->getSourceManager().getDecomposedLoc(Loc); 3496 bool Invalid = false; 3497 llvm::StringRef Buffer 3498 = CXXUnit->getSourceManager().getBufferData(LocInfo.first, &Invalid); 3499 if (Invalid) 3500 return createCXString(""); 3501 3502 return createCXString(Buffer.substr(LocInfo.second, CXTok.int_data[2])); 3503} 3504 3505CXSourceLocation clang_getTokenLocation(CXTranslationUnit TU, CXToken CXTok) { 3506 ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); 3507 if (!CXXUnit) 3508 return clang_getNullLocation(); 3509 3510 return cxloc::translateSourceLocation(CXXUnit->getASTContext(), 3511 SourceLocation::getFromRawEncoding(CXTok.int_data[1])); 3512} 3513 3514CXSourceRange clang_getTokenExtent(CXTranslationUnit TU, CXToken CXTok) { 3515 ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); 3516 if (!CXXUnit) 3517 return clang_getNullRange(); 3518 3519 return cxloc::translateSourceRange(CXXUnit->getASTContext(), 3520 SourceLocation::getFromRawEncoding(CXTok.int_data[1])); 3521} 3522 3523void clang_tokenize(CXTranslationUnit TU, CXSourceRange Range, 3524 CXToken **Tokens, unsigned *NumTokens) { 3525 if (Tokens) 3526 *Tokens = 0; 3527 if (NumTokens) 3528 *NumTokens = 0; 3529 3530 ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); 3531 if (!CXXUnit || !Tokens || !NumTokens) 3532 return; 3533 3534 ASTUnit::ConcurrencyCheck Check(*CXXUnit); 3535 3536 SourceRange R = cxloc::translateCXSourceRange(Range); 3537 if (R.isInvalid()) 3538 return; 3539 3540 SourceManager &SourceMgr = CXXUnit->getSourceManager(); 3541 std::pair<FileID, unsigned> BeginLocInfo 3542 = SourceMgr.getDecomposedLoc(R.getBegin()); 3543 std::pair<FileID, unsigned> EndLocInfo 3544 = SourceMgr.getDecomposedLoc(R.getEnd()); 3545 3546 // Cannot tokenize across files. 3547 if (BeginLocInfo.first != EndLocInfo.first) 3548 return; 3549 3550 // Create a lexer 3551 bool Invalid = false; 3552 llvm::StringRef Buffer 3553 = SourceMgr.getBufferData(BeginLocInfo.first, &Invalid); 3554 if (Invalid) 3555 return; 3556 3557 Lexer Lex(SourceMgr.getLocForStartOfFile(BeginLocInfo.first), 3558 CXXUnit->getASTContext().getLangOptions(), 3559 Buffer.begin(), Buffer.data() + BeginLocInfo.second, Buffer.end()); 3560 Lex.SetCommentRetentionState(true); 3561 3562 // Lex tokens until we hit the end of the range. 3563 const char *EffectiveBufferEnd = Buffer.data() + EndLocInfo.second; 3564 llvm::SmallVector<CXToken, 32> CXTokens; 3565 Token Tok; 3566 do { 3567 // Lex the next token 3568 Lex.LexFromRawLexer(Tok); 3569 if (Tok.is(tok::eof)) 3570 break; 3571 3572 // Initialize the CXToken. 3573 CXToken CXTok; 3574 3575 // - Common fields 3576 CXTok.int_data[1] = Tok.getLocation().getRawEncoding(); 3577 CXTok.int_data[2] = Tok.getLength(); 3578 CXTok.int_data[3] = 0; 3579 3580 // - Kind-specific fields 3581 if (Tok.isLiteral()) { 3582 CXTok.int_data[0] = CXToken_Literal; 3583 CXTok.ptr_data = (void *)Tok.getLiteralData(); 3584 } else if (Tok.is(tok::identifier)) { 3585 // Lookup the identifier to determine whether we have a keyword. 3586 std::pair<FileID, unsigned> LocInfo 3587 = SourceMgr.getDecomposedLoc(Tok.getLocation()); 3588 bool Invalid = false; 3589 llvm::StringRef Buf 3590 = CXXUnit->getSourceManager().getBufferData(LocInfo.first, &Invalid); 3591 if (Invalid) 3592 return; 3593 3594 const char *StartPos = Buf.data() + LocInfo.second; 3595 IdentifierInfo *II 3596 = CXXUnit->getPreprocessor().LookUpIdentifierInfo(Tok, StartPos); 3597 3598 if (II->getObjCKeywordID() != tok::objc_not_keyword) { 3599 CXTok.int_data[0] = CXToken_Keyword; 3600 } 3601 else { 3602 CXTok.int_data[0] = II->getTokenID() == tok::identifier? 3603 CXToken_Identifier 3604 : CXToken_Keyword; 3605 } 3606 CXTok.ptr_data = II; 3607 } else if (Tok.is(tok::comment)) { 3608 CXTok.int_data[0] = CXToken_Comment; 3609 CXTok.ptr_data = 0; 3610 } else { 3611 CXTok.int_data[0] = CXToken_Punctuation; 3612 CXTok.ptr_data = 0; 3613 } 3614 CXTokens.push_back(CXTok); 3615 } while (Lex.getBufferLocation() <= EffectiveBufferEnd); 3616 3617 if (CXTokens.empty()) 3618 return; 3619 3620 *Tokens = (CXToken *)malloc(sizeof(CXToken) * CXTokens.size()); 3621 memmove(*Tokens, CXTokens.data(), sizeof(CXToken) * CXTokens.size()); 3622 *NumTokens = CXTokens.size(); 3623} 3624 3625void clang_disposeTokens(CXTranslationUnit TU, 3626 CXToken *Tokens, unsigned NumTokens) { 3627 free(Tokens); 3628} 3629 3630} // end: extern "C" 3631 3632//===----------------------------------------------------------------------===// 3633// Token annotation APIs. 3634//===----------------------------------------------------------------------===// 3635 3636typedef llvm::DenseMap<unsigned, CXCursor> AnnotateTokensData; 3637static enum CXChildVisitResult AnnotateTokensVisitor(CXCursor cursor, 3638 CXCursor parent, 3639 CXClientData client_data); 3640namespace { 3641class AnnotateTokensWorker { 3642 AnnotateTokensData &Annotated; 3643 CXToken *Tokens; 3644 CXCursor *Cursors; 3645 unsigned NumTokens; 3646 unsigned TokIdx; 3647 CursorVisitor AnnotateVis; 3648 SourceManager &SrcMgr; 3649 3650 bool MoreTokens() const { return TokIdx < NumTokens; } 3651 unsigned NextToken() const { return TokIdx; } 3652 void AdvanceToken() { ++TokIdx; } 3653 SourceLocation GetTokenLoc(unsigned tokI) { 3654 return SourceLocation::getFromRawEncoding(Tokens[tokI].int_data[1]); 3655 } 3656 3657public: 3658 AnnotateTokensWorker(AnnotateTokensData &annotated, 3659 CXToken *tokens, CXCursor *cursors, unsigned numTokens, 3660 ASTUnit *CXXUnit, SourceRange RegionOfInterest) 3661 : Annotated(annotated), Tokens(tokens), Cursors(cursors), 3662 NumTokens(numTokens), TokIdx(0), 3663 AnnotateVis(CXXUnit, AnnotateTokensVisitor, this, 3664 Decl::MaxPCHLevel, RegionOfInterest), 3665 SrcMgr(CXXUnit->getSourceManager()) {} 3666 3667 void VisitChildren(CXCursor C) { AnnotateVis.VisitChildren(C); } 3668 enum CXChildVisitResult Visit(CXCursor cursor, CXCursor parent); 3669 void AnnotateTokens(CXCursor parent); 3670}; 3671} 3672 3673void AnnotateTokensWorker::AnnotateTokens(CXCursor parent) { 3674 // Walk the AST within the region of interest, annotating tokens 3675 // along the way. 3676 VisitChildren(parent); 3677 3678 for (unsigned I = 0 ; I < TokIdx ; ++I) { 3679 AnnotateTokensData::iterator Pos = Annotated.find(Tokens[I].int_data[1]); 3680 if (Pos != Annotated.end()) 3681 Cursors[I] = Pos->second; 3682 } 3683 3684 // Finish up annotating any tokens left. 3685 if (!MoreTokens()) 3686 return; 3687 3688 const CXCursor &C = clang_getNullCursor(); 3689 for (unsigned I = TokIdx ; I < NumTokens ; ++I) { 3690 AnnotateTokensData::iterator Pos = Annotated.find(Tokens[I].int_data[1]); 3691 Cursors[I] = (Pos == Annotated.end()) ? C : Pos->second; 3692 } 3693} 3694 3695enum CXChildVisitResult 3696AnnotateTokensWorker::Visit(CXCursor cursor, CXCursor parent) { 3697 CXSourceLocation Loc = clang_getCursorLocation(cursor); 3698 // We can always annotate a preprocessing directive/macro instantiation. 3699 if (clang_isPreprocessing(cursor.kind)) { 3700 Annotated[Loc.int_data] = cursor; 3701 return CXChildVisit_Recurse; 3702 } 3703 3704 SourceRange cursorRange = getRawCursorExtent(cursor); 3705 3706 if (cursorRange.isInvalid()) 3707 return CXChildVisit_Continue; 3708 3709 SourceLocation L = SourceLocation::getFromRawEncoding(Loc.int_data); 3710 3711 // Adjust the annotated range based specific declarations. 3712 const enum CXCursorKind cursorK = clang_getCursorKind(cursor); 3713 if (cursorK >= CXCursor_FirstDecl && cursorK <= CXCursor_LastDecl) { 3714 Decl *D = cxcursor::getCursorDecl(cursor); 3715 // Don't visit synthesized ObjC methods, since they have no syntatic 3716 // representation in the source. 3717 if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 3718 if (MD->isSynthesized()) 3719 return CXChildVisit_Continue; 3720 } 3721 if (const DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) { 3722 if (TypeSourceInfo *TI = DD->getTypeSourceInfo()) { 3723 TypeLoc TL = TI->getTypeLoc(); 3724 SourceLocation TLoc = TL.getSourceRange().getBegin(); 3725 if (TLoc.isValid() && 3726 SrcMgr.isBeforeInTranslationUnit(TLoc, L)) 3727 cursorRange.setBegin(TLoc); 3728 } 3729 } 3730 } 3731 3732 // If the location of the cursor occurs within a macro instantiation, record 3733 // the spelling location of the cursor in our annotation map. We can then 3734 // paper over the token labelings during a post-processing step to try and 3735 // get cursor mappings for tokens that are the *arguments* of a macro 3736 // instantiation. 3737 if (L.isMacroID()) { 3738 unsigned rawEncoding = SrcMgr.getSpellingLoc(L).getRawEncoding(); 3739 // Only invalidate the old annotation if it isn't part of a preprocessing 3740 // directive. Here we assume that the default construction of CXCursor 3741 // results in CXCursor.kind being an initialized value (i.e., 0). If 3742 // this isn't the case, we can fix by doing lookup + insertion. 3743 3744 CXCursor &oldC = Annotated[rawEncoding]; 3745 if (!clang_isPreprocessing(oldC.kind)) 3746 oldC = cursor; 3747 } 3748 3749 const enum CXCursorKind K = clang_getCursorKind(parent); 3750 const CXCursor updateC = 3751 (clang_isInvalid(K) || K == CXCursor_TranslationUnit) 3752 ? clang_getNullCursor() : parent; 3753 3754 while (MoreTokens()) { 3755 const unsigned I = NextToken(); 3756 SourceLocation TokLoc = GetTokenLoc(I); 3757 switch (LocationCompare(SrcMgr, TokLoc, cursorRange)) { 3758 case RangeBefore: 3759 Cursors[I] = updateC; 3760 AdvanceToken(); 3761 continue; 3762 case RangeAfter: 3763 case RangeOverlap: 3764 break; 3765 } 3766 break; 3767 } 3768 3769 // Visit children to get their cursor information. 3770 const unsigned BeforeChildren = NextToken(); 3771 VisitChildren(cursor); 3772 const unsigned AfterChildren = NextToken(); 3773 3774 // Adjust 'Last' to the last token within the extent of the cursor. 3775 while (MoreTokens()) { 3776 const unsigned I = NextToken(); 3777 SourceLocation TokLoc = GetTokenLoc(I); 3778 switch (LocationCompare(SrcMgr, TokLoc, cursorRange)) { 3779 case RangeBefore: 3780 assert(0 && "Infeasible"); 3781 case RangeAfter: 3782 break; 3783 case RangeOverlap: 3784 Cursors[I] = updateC; 3785 AdvanceToken(); 3786 continue; 3787 } 3788 break; 3789 } 3790 const unsigned Last = NextToken(); 3791 3792 // Scan the tokens that are at the beginning of the cursor, but are not 3793 // capture by the child cursors. 3794 3795 // For AST elements within macros, rely on a post-annotate pass to 3796 // to correctly annotate the tokens with cursors. Otherwise we can 3797 // get confusing results of having tokens that map to cursors that really 3798 // are expanded by an instantiation. 3799 if (L.isMacroID()) 3800 cursor = clang_getNullCursor(); 3801 3802 for (unsigned I = BeforeChildren; I != AfterChildren; ++I) { 3803 if (!clang_isInvalid(clang_getCursorKind(Cursors[I]))) 3804 break; 3805 Cursors[I] = cursor; 3806 } 3807 // Scan the tokens that are at the end of the cursor, but are not captured 3808 // but the child cursors. 3809 for (unsigned I = AfterChildren; I != Last; ++I) 3810 Cursors[I] = cursor; 3811 3812 TokIdx = Last; 3813 return CXChildVisit_Continue; 3814} 3815 3816static enum CXChildVisitResult AnnotateTokensVisitor(CXCursor cursor, 3817 CXCursor parent, 3818 CXClientData client_data) { 3819 return static_cast<AnnotateTokensWorker*>(client_data)->Visit(cursor, parent); 3820} 3821 3822extern "C" { 3823 3824void clang_annotateTokens(CXTranslationUnit TU, 3825 CXToken *Tokens, unsigned NumTokens, 3826 CXCursor *Cursors) { 3827 3828 if (NumTokens == 0 || !Tokens || !Cursors) 3829 return; 3830 3831 ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); 3832 if (!CXXUnit) { 3833 // Any token we don't specifically annotate will have a NULL cursor. 3834 const CXCursor &C = clang_getNullCursor(); 3835 for (unsigned I = 0; I != NumTokens; ++I) 3836 Cursors[I] = C; 3837 return; 3838 } 3839 3840 ASTUnit::ConcurrencyCheck Check(*CXXUnit); 3841 3842 // Determine the region of interest, which contains all of the tokens. 3843 SourceRange RegionOfInterest; 3844 RegionOfInterest.setBegin(cxloc::translateSourceLocation( 3845 clang_getTokenLocation(TU, Tokens[0]))); 3846 RegionOfInterest.setEnd(cxloc::translateSourceLocation( 3847 clang_getTokenLocation(TU, 3848 Tokens[NumTokens - 1]))); 3849 3850 // A mapping from the source locations found when re-lexing or traversing the 3851 // region of interest to the corresponding cursors. 3852 AnnotateTokensData Annotated; 3853 3854 // Relex the tokens within the source range to look for preprocessing 3855 // directives. 3856 SourceManager &SourceMgr = CXXUnit->getSourceManager(); 3857 std::pair<FileID, unsigned> BeginLocInfo 3858 = SourceMgr.getDecomposedLoc(RegionOfInterest.getBegin()); 3859 std::pair<FileID, unsigned> EndLocInfo 3860 = SourceMgr.getDecomposedLoc(RegionOfInterest.getEnd()); 3861 3862 llvm::StringRef Buffer; 3863 bool Invalid = false; 3864 if (BeginLocInfo.first == EndLocInfo.first && 3865 ((Buffer = SourceMgr.getBufferData(BeginLocInfo.first, &Invalid)),true) && 3866 !Invalid) { 3867 Lexer Lex(SourceMgr.getLocForStartOfFile(BeginLocInfo.first), 3868 CXXUnit->getASTContext().getLangOptions(), 3869 Buffer.begin(), Buffer.data() + BeginLocInfo.second, 3870 Buffer.end()); 3871 Lex.SetCommentRetentionState(true); 3872 3873 // Lex tokens in raw mode until we hit the end of the range, to avoid 3874 // entering #includes or expanding macros. 3875 while (true) { 3876 Token Tok; 3877 Lex.LexFromRawLexer(Tok); 3878 3879 reprocess: 3880 if (Tok.is(tok::hash) && Tok.isAtStartOfLine()) { 3881 // We have found a preprocessing directive. Gobble it up so that we 3882 // don't see it while preprocessing these tokens later, but keep track of 3883 // all of the token locations inside this preprocessing directive so that 3884 // we can annotate them appropriately. 3885 // 3886 // FIXME: Some simple tests here could identify macro definitions and 3887 // #undefs, to provide specific cursor kinds for those. 3888 std::vector<SourceLocation> Locations; 3889 do { 3890 Locations.push_back(Tok.getLocation()); 3891 Lex.LexFromRawLexer(Tok); 3892 } while (!Tok.isAtStartOfLine() && !Tok.is(tok::eof)); 3893 3894 using namespace cxcursor; 3895 CXCursor Cursor 3896 = MakePreprocessingDirectiveCursor(SourceRange(Locations.front(), 3897 Locations.back()), 3898 CXXUnit); 3899 for (unsigned I = 0, N = Locations.size(); I != N; ++I) { 3900 Annotated[Locations[I].getRawEncoding()] = Cursor; 3901 } 3902 3903 if (Tok.isAtStartOfLine()) 3904 goto reprocess; 3905 3906 continue; 3907 } 3908 3909 if (Tok.is(tok::eof)) 3910 break; 3911 } 3912 } 3913 3914 // Annotate all of the source locations in the region of interest that map to 3915 // a specific cursor. 3916 AnnotateTokensWorker W(Annotated, Tokens, Cursors, NumTokens, 3917 CXXUnit, RegionOfInterest); 3918 W.AnnotateTokens(clang_getTranslationUnitCursor(CXXUnit)); 3919} 3920} // end: extern "C" 3921 3922//===----------------------------------------------------------------------===// 3923// Operations for querying linkage of a cursor. 3924//===----------------------------------------------------------------------===// 3925 3926extern "C" { 3927CXLinkageKind clang_getCursorLinkage(CXCursor cursor) { 3928 if (!clang_isDeclaration(cursor.kind)) 3929 return CXLinkage_Invalid; 3930 3931 Decl *D = cxcursor::getCursorDecl(cursor); 3932 if (NamedDecl *ND = dyn_cast_or_null<NamedDecl>(D)) 3933 switch (ND->getLinkage()) { 3934 case NoLinkage: return CXLinkage_NoLinkage; 3935 case InternalLinkage: return CXLinkage_Internal; 3936 case UniqueExternalLinkage: return CXLinkage_UniqueExternal; 3937 case ExternalLinkage: return CXLinkage_External; 3938 }; 3939 3940 return CXLinkage_Invalid; 3941} 3942} // end: extern "C" 3943 3944//===----------------------------------------------------------------------===// 3945// Operations for querying language of a cursor. 3946//===----------------------------------------------------------------------===// 3947 3948static CXLanguageKind getDeclLanguage(const Decl *D) { 3949 switch (D->getKind()) { 3950 default: 3951 break; 3952 case Decl::ImplicitParam: 3953 case Decl::ObjCAtDefsField: 3954 case Decl::ObjCCategory: 3955 case Decl::ObjCCategoryImpl: 3956 case Decl::ObjCClass: 3957 case Decl::ObjCCompatibleAlias: 3958 case Decl::ObjCForwardProtocol: 3959 case Decl::ObjCImplementation: 3960 case Decl::ObjCInterface: 3961 case Decl::ObjCIvar: 3962 case Decl::ObjCMethod: 3963 case Decl::ObjCProperty: 3964 case Decl::ObjCPropertyImpl: 3965 case Decl::ObjCProtocol: 3966 return CXLanguage_ObjC; 3967 case Decl::CXXConstructor: 3968 case Decl::CXXConversion: 3969 case Decl::CXXDestructor: 3970 case Decl::CXXMethod: 3971 case Decl::CXXRecord: 3972 case Decl::ClassTemplate: 3973 case Decl::ClassTemplatePartialSpecialization: 3974 case Decl::ClassTemplateSpecialization: 3975 case Decl::Friend: 3976 case Decl::FriendTemplate: 3977 case Decl::FunctionTemplate: 3978 case Decl::LinkageSpec: 3979 case Decl::Namespace: 3980 case Decl::NamespaceAlias: 3981 case Decl::NonTypeTemplateParm: 3982 case Decl::StaticAssert: 3983 case Decl::TemplateTemplateParm: 3984 case Decl::TemplateTypeParm: 3985 case Decl::UnresolvedUsingTypename: 3986 case Decl::UnresolvedUsingValue: 3987 case Decl::Using: 3988 case Decl::UsingDirective: 3989 case Decl::UsingShadow: 3990 return CXLanguage_CPlusPlus; 3991 } 3992 3993 return CXLanguage_C; 3994} 3995 3996extern "C" { 3997 3998enum CXAvailabilityKind clang_getCursorAvailability(CXCursor cursor) { 3999 if (clang_isDeclaration(cursor.kind)) 4000 if (Decl *D = cxcursor::getCursorDecl(cursor)) { 4001 if (D->hasAttr<UnavailableAttr>() || 4002 (isa<FunctionDecl>(D) && cast<FunctionDecl>(D)->isDeleted())) 4003 return CXAvailability_Available; 4004 4005 if (D->hasAttr<DeprecatedAttr>()) 4006 return CXAvailability_Deprecated; 4007 } 4008 4009 return CXAvailability_Available; 4010} 4011 4012CXLanguageKind clang_getCursorLanguage(CXCursor cursor) { 4013 if (clang_isDeclaration(cursor.kind)) 4014 return getDeclLanguage(cxcursor::getCursorDecl(cursor)); 4015 4016 return CXLanguage_Invalid; 4017} 4018} // end: extern "C" 4019 4020 4021//===----------------------------------------------------------------------===// 4022// C++ AST instrospection. 4023//===----------------------------------------------------------------------===// 4024 4025extern "C" { 4026unsigned clang_CXXMethod_isStatic(CXCursor C) { 4027 if (!clang_isDeclaration(C.kind)) 4028 return 0; 4029 4030 CXXMethodDecl *Method = 0; 4031 Decl *D = cxcursor::getCursorDecl(C); 4032 if (FunctionTemplateDecl *FunTmpl = dyn_cast_or_null<FunctionTemplateDecl>(D)) 4033 Method = dyn_cast<CXXMethodDecl>(FunTmpl->getTemplatedDecl()); 4034 else 4035 Method = dyn_cast_or_null<CXXMethodDecl>(D); 4036 return (Method && Method->isStatic()) ? 1 : 0; 4037} 4038 4039} // end: extern "C" 4040 4041//===----------------------------------------------------------------------===// 4042// Attribute introspection. 4043//===----------------------------------------------------------------------===// 4044 4045extern "C" { 4046CXType clang_getIBOutletCollectionType(CXCursor C) { 4047 if (C.kind != CXCursor_IBOutletCollectionAttr) 4048 return cxtype::MakeCXType(QualType(), cxcursor::getCursorASTUnit(C)); 4049 4050 IBOutletCollectionAttr *A = 4051 cast<IBOutletCollectionAttr>(cxcursor::getCursorAttr(C)); 4052 4053 return cxtype::MakeCXType(A->getInterface(), cxcursor::getCursorASTUnit(C)); 4054} 4055} // end: extern "C" 4056 4057//===----------------------------------------------------------------------===// 4058// CXString Operations. 4059//===----------------------------------------------------------------------===// 4060 4061extern "C" { 4062const char *clang_getCString(CXString string) { 4063 return string.Spelling; 4064} 4065 4066void clang_disposeString(CXString string) { 4067 if (string.MustFreeString && string.Spelling) 4068 free((void*)string.Spelling); 4069} 4070 4071} // end: extern "C" 4072 4073namespace clang { namespace cxstring { 4074CXString createCXString(const char *String, bool DupString){ 4075 CXString Str; 4076 if (DupString) { 4077 Str.Spelling = strdup(String); 4078 Str.MustFreeString = 1; 4079 } else { 4080 Str.Spelling = String; 4081 Str.MustFreeString = 0; 4082 } 4083 return Str; 4084} 4085 4086CXString createCXString(llvm::StringRef String, bool DupString) { 4087 CXString Result; 4088 if (DupString || (!String.empty() && String.data()[String.size()] != 0)) { 4089 char *Spelling = (char *)malloc(String.size() + 1); 4090 memmove(Spelling, String.data(), String.size()); 4091 Spelling[String.size()] = 0; 4092 Result.Spelling = Spelling; 4093 Result.MustFreeString = 1; 4094 } else { 4095 Result.Spelling = String.data(); 4096 Result.MustFreeString = 0; 4097 } 4098 return Result; 4099} 4100}} 4101 4102//===----------------------------------------------------------------------===// 4103// Misc. utility functions. 4104//===----------------------------------------------------------------------===// 4105 4106extern "C" { 4107 4108CXString clang_getClangVersion() { 4109 return createCXString(getClangFullVersion()); 4110} 4111 4112} // end: extern "C" 4113