| //===- CIndex.cpp - Clang-C Source Indexing Library -----------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file implements the main API hooks in the Clang-C Source Indexing |
| // library. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "CIndexer.h" |
| #include "CXCursor.h" |
| #include "CXSourceLocation.h" |
| #include "CIndexDiagnostic.h" |
| |
| #include "clang/Basic/Version.h" |
| |
| #include "clang/AST/DeclVisitor.h" |
| #include "clang/AST/StmtVisitor.h" |
| #include "clang/AST/TypeLocVisitor.h" |
| #include "clang/Basic/Diagnostic.h" |
| #include "clang/Frontend/ASTUnit.h" |
| #include "clang/Frontend/CompilerInstance.h" |
| #include "clang/Frontend/FrontendDiagnostic.h" |
| #include "clang/Lex/Lexer.h" |
| #include "clang/Lex/PreprocessingRecord.h" |
| #include "clang/Lex/Preprocessor.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/System/Program.h" |
| #include "llvm/System/Signals.h" |
| |
| // Needed to define L_TMPNAM on some systems. |
| #include <cstdio> |
| |
| using namespace clang; |
| using namespace clang::cxcursor; |
| using namespace clang::cxstring; |
| |
| //===----------------------------------------------------------------------===// |
| // Crash Reporting. |
| //===----------------------------------------------------------------------===// |
| |
| #ifdef USE_CRASHTRACER |
| #include "clang/Analysis/Support/SaveAndRestore.h" |
| // Integrate with crash reporter. |
| static const char *__crashreporter_info__ = 0; |
| asm(".desc ___crashreporter_info__, 0x10"); |
| #define NUM_CRASH_STRINGS 32 |
| static unsigned crashtracer_counter = 0; |
| static unsigned crashtracer_counter_id[NUM_CRASH_STRINGS] = { 0 }; |
| static const char *crashtracer_strings[NUM_CRASH_STRINGS] = { 0 }; |
| static const char *agg_crashtracer_strings[NUM_CRASH_STRINGS] = { 0 }; |
| |
| static unsigned SetCrashTracerInfo(const char *str, |
| llvm::SmallString<1024> &AggStr) { |
| |
| unsigned slot = 0; |
| while (crashtracer_strings[slot]) { |
| if (++slot == NUM_CRASH_STRINGS) |
| slot = 0; |
| } |
| crashtracer_strings[slot] = str; |
| crashtracer_counter_id[slot] = ++crashtracer_counter; |
| |
| // We need to create an aggregate string because multiple threads |
| // may be in this method at one time. The crash reporter string |
| // will attempt to overapproximate the set of in-flight invocations |
| // of this function. Race conditions can still cause this goal |
| // to not be achieved. |
| { |
| llvm::raw_svector_ostream Out(AggStr); |
| for (unsigned i = 0; i < NUM_CRASH_STRINGS; ++i) |
| if (crashtracer_strings[i]) Out << crashtracer_strings[i] << '\n'; |
| } |
| __crashreporter_info__ = agg_crashtracer_strings[slot] = AggStr.c_str(); |
| return slot; |
| } |
| |
| static void ResetCrashTracerInfo(unsigned slot) { |
| unsigned max_slot = 0; |
| unsigned max_value = 0; |
| |
| crashtracer_strings[slot] = agg_crashtracer_strings[slot] = 0; |
| |
| for (unsigned i = 0 ; i < NUM_CRASH_STRINGS; ++i) |
| if (agg_crashtracer_strings[i] && |
| crashtracer_counter_id[i] > max_value) { |
| max_slot = i; |
| max_value = crashtracer_counter_id[i]; |
| } |
| |
| __crashreporter_info__ = agg_crashtracer_strings[max_slot]; |
| } |
| |
| namespace { |
| class ArgsCrashTracerInfo { |
| llvm::SmallString<1024> CrashString; |
| llvm::SmallString<1024> AggregateString; |
| unsigned crashtracerSlot; |
| public: |
| ArgsCrashTracerInfo(llvm::SmallVectorImpl<const char*> &Args) |
| : crashtracerSlot(0) |
| { |
| { |
| llvm::raw_svector_ostream Out(CrashString); |
| Out << "ClangCIndex [" << getClangFullVersion() << "]" |
| << "[createTranslationUnitFromSourceFile]: clang"; |
| for (llvm::SmallVectorImpl<const char*>::iterator I=Args.begin(), |
| E=Args.end(); I!=E; ++I) |
| Out << ' ' << *I; |
| } |
| crashtracerSlot = SetCrashTracerInfo(CrashString.c_str(), |
| AggregateString); |
| } |
| |
| ~ArgsCrashTracerInfo() { |
| ResetCrashTracerInfo(crashtracerSlot); |
| } |
| }; |
| } |
| #endif |
| |
| /// \brief The result of comparing two source ranges. |
| enum RangeComparisonResult { |
| /// \brief Either the ranges overlap or one of the ranges is invalid. |
| RangeOverlap, |
| |
| /// \brief The first range ends before the second range starts. |
| RangeBefore, |
| |
| /// \brief The first range starts after the second range ends. |
| RangeAfter |
| }; |
| |
| /// \brief Compare two source ranges to determine their relative position in |
| /// the translation unit. |
| static RangeComparisonResult RangeCompare(SourceManager &SM, |
| SourceRange R1, |
| SourceRange R2) { |
| assert(R1.isValid() && "First range is invalid?"); |
| assert(R2.isValid() && "Second range is invalid?"); |
| if (R1.getEnd() == R2.getBegin() || |
| SM.isBeforeInTranslationUnit(R1.getEnd(), R2.getBegin())) |
| return RangeBefore; |
| if (R2.getEnd() == R1.getBegin() || |
| SM.isBeforeInTranslationUnit(R2.getEnd(), R1.getBegin())) |
| return RangeAfter; |
| return RangeOverlap; |
| } |
| |
| /// \brief Determine if a source location falls within, before, or after a |
| /// a given source range. |
| static RangeComparisonResult LocationCompare(SourceManager &SM, |
| SourceLocation L, SourceRange R) { |
| assert(R.isValid() && "First range is invalid?"); |
| assert(L.isValid() && "Second range is invalid?"); |
| if (L == R.getBegin()) |
| return RangeOverlap; |
| if (L == R.getEnd()) |
| return RangeAfter; |
| if (SM.isBeforeInTranslationUnit(L, R.getBegin())) |
| return RangeBefore; |
| if (SM.isBeforeInTranslationUnit(R.getEnd(), L)) |
| return RangeAfter; |
| return RangeOverlap; |
| } |
| |
| /// \brief Translate a Clang source range into a CIndex source range. |
| /// |
| /// Clang internally represents ranges where the end location points to the |
| /// start of the token at the end. However, for external clients it is more |
| /// useful to have a CXSourceRange be a proper half-open interval. This routine |
| /// does the appropriate translation. |
| CXSourceRange cxloc::translateSourceRange(const SourceManager &SM, |
| const LangOptions &LangOpts, |
| SourceRange R) { |
| // We want the last character in this location, so we will adjust the |
| // location accordingly. |
| // FIXME: How do do this with a macro instantiation location? |
| SourceLocation EndLoc = R.getEnd(); |
| if (!EndLoc.isInvalid() && EndLoc.isFileID()) { |
| unsigned Length = Lexer::MeasureTokenLength(EndLoc, SM, LangOpts); |
| EndLoc = EndLoc.getFileLocWithOffset(Length); |
| } |
| |
| CXSourceRange Result = { { (void *)&SM, (void *)&LangOpts }, |
| R.getBegin().getRawEncoding(), |
| EndLoc.getRawEncoding() }; |
| return Result; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Cursor visitor. |
| //===----------------------------------------------------------------------===// |
| |
| namespace { |
| |
| // Cursor visitor. |
| class CursorVisitor : public DeclVisitor<CursorVisitor, bool>, |
| public TypeLocVisitor<CursorVisitor, bool>, |
| public StmtVisitor<CursorVisitor, bool> |
| { |
| /// \brief The translation unit we are traversing. |
| ASTUnit *TU; |
| |
| /// \brief The parent cursor whose children we are traversing. |
| CXCursor Parent; |
| |
| /// \brief The declaration that serves at the parent of any statement or |
| /// expression nodes. |
| Decl *StmtParent; |
| |
| /// \brief The visitor function. |
| CXCursorVisitor Visitor; |
| |
| /// \brief The opaque client data, to be passed along to the visitor. |
| CXClientData ClientData; |
| |
| // MaxPCHLevel - the maximum PCH level of declarations that we will pass on |
| // to the visitor. Declarations with a PCH level greater than this value will |
| // be suppressed. |
| unsigned MaxPCHLevel; |
| |
| /// \brief When valid, a source range to which the cursor should restrict |
| /// its search. |
| SourceRange RegionOfInterest; |
| |
| using DeclVisitor<CursorVisitor, bool>::Visit; |
| using TypeLocVisitor<CursorVisitor, bool>::Visit; |
| using StmtVisitor<CursorVisitor, bool>::Visit; |
| |
| /// \brief Determine whether this particular source range comes before, comes |
| /// after, or overlaps the region of interest. |
| /// |
| /// \param R a half-open source range retrieved from the abstract syntax tree. |
| RangeComparisonResult CompareRegionOfInterest(SourceRange R); |
| |
| class SetParentRAII { |
| CXCursor &Parent; |
| Decl *&StmtParent; |
| CXCursor OldParent; |
| |
| public: |
| SetParentRAII(CXCursor &Parent, Decl *&StmtParent, CXCursor NewParent) |
| : Parent(Parent), StmtParent(StmtParent), OldParent(Parent) |
| { |
| Parent = NewParent; |
| if (clang_isDeclaration(Parent.kind)) |
| StmtParent = getCursorDecl(Parent); |
| } |
| |
| ~SetParentRAII() { |
| Parent = OldParent; |
| if (clang_isDeclaration(Parent.kind)) |
| StmtParent = getCursorDecl(Parent); |
| } |
| }; |
| |
| public: |
| CursorVisitor(ASTUnit *TU, CXCursorVisitor Visitor, CXClientData ClientData, |
| unsigned MaxPCHLevel, |
| SourceRange RegionOfInterest = SourceRange()) |
| : TU(TU), Visitor(Visitor), ClientData(ClientData), |
| MaxPCHLevel(MaxPCHLevel), RegionOfInterest(RegionOfInterest) |
| { |
| Parent.kind = CXCursor_NoDeclFound; |
| Parent.data[0] = 0; |
| Parent.data[1] = 0; |
| Parent.data[2] = 0; |
| StmtParent = 0; |
| } |
| |
| bool Visit(CXCursor Cursor, bool CheckedRegionOfInterest = false); |
| |
| std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> |
| getPreprocessedEntities(); |
| |
| bool VisitChildren(CXCursor Parent); |
| |
| // Declaration visitors |
| bool VisitAttributes(Decl *D); |
| bool VisitBlockDecl(BlockDecl *B); |
| bool VisitDeclContext(DeclContext *DC); |
| bool VisitTranslationUnitDecl(TranslationUnitDecl *D); |
| bool VisitTypedefDecl(TypedefDecl *D); |
| bool VisitTagDecl(TagDecl *D); |
| bool VisitEnumConstantDecl(EnumConstantDecl *D); |
| bool VisitDeclaratorDecl(DeclaratorDecl *DD); |
| bool VisitFunctionDecl(FunctionDecl *ND); |
| bool VisitFieldDecl(FieldDecl *D); |
| bool VisitVarDecl(VarDecl *); |
| bool VisitObjCMethodDecl(ObjCMethodDecl *ND); |
| bool VisitObjCContainerDecl(ObjCContainerDecl *D); |
| bool VisitObjCCategoryDecl(ObjCCategoryDecl *ND); |
| bool VisitObjCProtocolDecl(ObjCProtocolDecl *PID); |
| bool VisitObjCPropertyDecl(ObjCPropertyDecl *PD); |
| bool VisitObjCInterfaceDecl(ObjCInterfaceDecl *D); |
| bool VisitObjCImplDecl(ObjCImplDecl *D); |
| bool VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D); |
| bool VisitObjCImplementationDecl(ObjCImplementationDecl *D); |
| // FIXME: ObjCPropertyDecl requires TypeSourceInfo, getter/setter locations, |
| // etc. |
| // FIXME: ObjCCompatibleAliasDecl requires aliased-class locations. |
| bool VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D); |
| bool VisitObjCClassDecl(ObjCClassDecl *D); |
| bool VisitLinkageSpecDecl(LinkageSpecDecl *D); |
| bool VisitNamespaceDecl(NamespaceDecl *D); |
| |
| // Type visitors |
| // FIXME: QualifiedTypeLoc doesn't provide any location information |
| bool VisitBuiltinTypeLoc(BuiltinTypeLoc TL); |
| bool VisitTypedefTypeLoc(TypedefTypeLoc TL); |
| bool VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL); |
| bool VisitTagTypeLoc(TagTypeLoc TL); |
| // FIXME: TemplateTypeParmTypeLoc doesn't provide any location information |
| bool VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL); |
| bool VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL); |
| bool VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL); |
| bool VisitPointerTypeLoc(PointerTypeLoc TL); |
| bool VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL); |
| bool VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL); |
| bool VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL); |
| bool VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL); |
| bool VisitFunctionTypeLoc(FunctionTypeLoc TL); |
| bool VisitArrayTypeLoc(ArrayTypeLoc TL); |
| // FIXME: Implement for TemplateSpecializationTypeLoc |
| // FIXME: Implement visitors here when the unimplemented TypeLocs get |
| // implemented |
| bool VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL); |
| bool VisitTypeOfTypeLoc(TypeOfTypeLoc TL); |
| |
| // Statement visitors |
| bool VisitStmt(Stmt *S); |
| bool VisitDeclStmt(DeclStmt *S); |
| // FIXME: LabelStmt label? |
| bool VisitIfStmt(IfStmt *S); |
| bool VisitSwitchStmt(SwitchStmt *S); |
| bool VisitCaseStmt(CaseStmt *S); |
| bool VisitWhileStmt(WhileStmt *S); |
| bool VisitForStmt(ForStmt *S); |
| // bool VisitSwitchCase(SwitchCase *S); |
| |
| // Expression visitors |
| bool VisitBlockExpr(BlockExpr *B); |
| bool VisitCompoundLiteralExpr(CompoundLiteralExpr *E); |
| bool VisitExplicitCastExpr(ExplicitCastExpr *E); |
| bool VisitObjCMessageExpr(ObjCMessageExpr *E); |
| bool VisitObjCEncodeExpr(ObjCEncodeExpr *E); |
| bool VisitOffsetOfExpr(OffsetOfExpr *E); |
| bool VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E); |
| }; |
| |
| } // end anonymous namespace |
| |
| RangeComparisonResult CursorVisitor::CompareRegionOfInterest(SourceRange R) { |
| return RangeCompare(TU->getSourceManager(), R, RegionOfInterest); |
| } |
| |
| /// \brief Visit the given cursor and, if requested by the visitor, |
| /// its children. |
| /// |
| /// \param Cursor the cursor to visit. |
| /// |
| /// \param CheckRegionOfInterest if true, then the caller already checked that |
| /// this cursor is within the region of interest. |
| /// |
| /// \returns true if the visitation should be aborted, false if it |
| /// should continue. |
| bool CursorVisitor::Visit(CXCursor Cursor, bool CheckedRegionOfInterest) { |
| if (clang_isInvalid(Cursor.kind)) |
| return false; |
| |
| if (clang_isDeclaration(Cursor.kind)) { |
| Decl *D = getCursorDecl(Cursor); |
| assert(D && "Invalid declaration cursor"); |
| if (D->getPCHLevel() > MaxPCHLevel) |
| return false; |
| |
| if (D->isImplicit()) |
| return false; |
| } |
| |
| // If we have a range of interest, and this cursor doesn't intersect with it, |
| // we're done. |
| if (RegionOfInterest.isValid() && !CheckedRegionOfInterest) { |
| SourceRange Range = |
| cxloc::translateCXSourceRange(clang_getCursorExtent(Cursor)); |
| if (Range.isInvalid() || CompareRegionOfInterest(Range)) |
| return false; |
| } |
| |
| switch (Visitor(Cursor, Parent, ClientData)) { |
| case CXChildVisit_Break: |
| return true; |
| |
| case CXChildVisit_Continue: |
| return false; |
| |
| case CXChildVisit_Recurse: |
| return VisitChildren(Cursor); |
| } |
| |
| return false; |
| } |
| |
| std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator> |
| CursorVisitor::getPreprocessedEntities() { |
| PreprocessingRecord &PPRec |
| = *TU->getPreprocessor().getPreprocessingRecord(); |
| |
| bool OnlyLocalDecls |
| = !TU->isMainFileAST() && TU->getOnlyLocalDecls(); |
| |
| // There is no region of interest; we have to walk everything. |
| if (RegionOfInterest.isInvalid()) |
| return std::make_pair(PPRec.begin(OnlyLocalDecls), |
| PPRec.end(OnlyLocalDecls)); |
| |
| // Find the file in which the region of interest lands. |
| SourceManager &SM = TU->getSourceManager(); |
| std::pair<FileID, unsigned> Begin |
| = SM.getDecomposedInstantiationLoc(RegionOfInterest.getBegin()); |
| std::pair<FileID, unsigned> End |
| = SM.getDecomposedInstantiationLoc(RegionOfInterest.getEnd()); |
| |
| // The region of interest spans files; we have to walk everything. |
| if (Begin.first != End.first) |
| return std::make_pair(PPRec.begin(OnlyLocalDecls), |
| PPRec.end(OnlyLocalDecls)); |
| |
| ASTUnit::PreprocessedEntitiesByFileMap &ByFileMap |
| = TU->getPreprocessedEntitiesByFile(); |
| if (ByFileMap.empty()) { |
| // Build the mapping from files to sets of preprocessed entities. |
| for (PreprocessingRecord::iterator E = PPRec.begin(OnlyLocalDecls), |
| EEnd = PPRec.end(OnlyLocalDecls); |
| E != EEnd; ++E) { |
| std::pair<FileID, unsigned> P |
| = SM.getDecomposedInstantiationLoc((*E)->getSourceRange().getBegin()); |
| ByFileMap[P.first].push_back(*E); |
| } |
| } |
| |
| return std::make_pair(ByFileMap[Begin.first].begin(), |
| ByFileMap[Begin.first].end()); |
| } |
| |
| /// \brief Visit the children of the given cursor. |
| /// |
| /// \returns true if the visitation should be aborted, false if it |
| /// should continue. |
| bool CursorVisitor::VisitChildren(CXCursor Cursor) { |
| if (clang_isReference(Cursor.kind)) { |
| // By definition, references have no children. |
| return false; |
| } |
| |
| // Set the Parent field to Cursor, then back to its old value once we're |
| // done. |
| SetParentRAII SetParent(Parent, StmtParent, Cursor); |
| |
| if (clang_isDeclaration(Cursor.kind)) { |
| Decl *D = getCursorDecl(Cursor); |
| assert(D && "Invalid declaration cursor"); |
| return VisitAttributes(D) || Visit(D); |
| } |
| |
| if (clang_isStatement(Cursor.kind)) |
| return Visit(getCursorStmt(Cursor)); |
| if (clang_isExpression(Cursor.kind)) |
| return Visit(getCursorExpr(Cursor)); |
| |
| if (clang_isTranslationUnit(Cursor.kind)) { |
| ASTUnit *CXXUnit = getCursorASTUnit(Cursor); |
| if (!CXXUnit->isMainFileAST() && CXXUnit->getOnlyLocalDecls() && |
| RegionOfInterest.isInvalid()) { |
| const std::vector<Decl*> &TLDs = CXXUnit->getTopLevelDecls(); |
| for (std::vector<Decl*>::const_iterator it = TLDs.begin(), |
| ie = TLDs.end(); it != ie; ++it) { |
| if (Visit(MakeCXCursor(*it, CXXUnit), true)) |
| return true; |
| } |
| } else if (VisitDeclContext( |
| CXXUnit->getASTContext().getTranslationUnitDecl())) |
| return true; |
| |
| // Walk the preprocessing record. |
| if (CXXUnit->getPreprocessor().getPreprocessingRecord()) { |
| // FIXME: Once we have the ability to deserialize a preprocessing record, |
| // do so. |
| PreprocessingRecord::iterator E, EEnd; |
| for (llvm::tie(E, EEnd) = getPreprocessedEntities(); E != EEnd; ++E) { |
| if (MacroInstantiation *MI = dyn_cast<MacroInstantiation>(*E)) { |
| if (Visit(MakeMacroInstantiationCursor(MI, CXXUnit))) |
| return true; |
| |
| continue; |
| } |
| |
| if (MacroDefinition *MD = dyn_cast<MacroDefinition>(*E)) { |
| if (Visit(MakeMacroDefinitionCursor(MD, CXXUnit))) |
| return true; |
| |
| continue; |
| } |
| } |
| } |
| return false; |
| } |
| |
| // Nothing to visit at the moment. |
| return false; |
| } |
| |
| bool CursorVisitor::VisitBlockDecl(BlockDecl *B) { |
| for (BlockDecl::param_iterator I=B->param_begin(), E=B->param_end(); I!=E;++I) |
| if (Decl *D = *I) |
| if (Visit(D)) |
| return true; |
| |
| return Visit(MakeCXCursor(B->getBody(), StmtParent, TU)); |
| } |
| |
| bool CursorVisitor::VisitDeclContext(DeclContext *DC) { |
| for (DeclContext::decl_iterator |
| I = DC->decls_begin(), E = DC->decls_end(); I != E; ++I) { |
| |
| Decl *D = *I; |
| if (D->getLexicalDeclContext() != DC) |
| continue; |
| |
| CXCursor Cursor = MakeCXCursor(D, TU); |
| |
| if (RegionOfInterest.isValid()) { |
| SourceRange Range = |
| cxloc::translateCXSourceRange(clang_getCursorExtent(Cursor)); |
| if (Range.isInvalid()) |
| continue; |
| |
| switch (CompareRegionOfInterest(Range)) { |
| case RangeBefore: |
| // This declaration comes before the region of interest; skip it. |
| continue; |
| |
| case RangeAfter: |
| // This declaration comes after the region of interest; we're done. |
| return false; |
| |
| case RangeOverlap: |
| // This declaration overlaps the region of interest; visit it. |
| break; |
| } |
| } |
| |
| if (Visit(Cursor, true)) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitTranslationUnitDecl(TranslationUnitDecl *D) { |
| llvm_unreachable("Translation units are visited directly by Visit()"); |
| return false; |
| } |
| |
| bool CursorVisitor::VisitTypedefDecl(TypedefDecl *D) { |
| if (TypeSourceInfo *TSInfo = D->getTypeSourceInfo()) |
| return Visit(TSInfo->getTypeLoc()); |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitTagDecl(TagDecl *D) { |
| return VisitDeclContext(D); |
| } |
| |
| bool CursorVisitor::VisitEnumConstantDecl(EnumConstantDecl *D) { |
| if (Expr *Init = D->getInitExpr()) |
| return Visit(MakeCXCursor(Init, StmtParent, TU)); |
| return false; |
| } |
| |
| bool CursorVisitor::VisitDeclaratorDecl(DeclaratorDecl *DD) { |
| if (TypeSourceInfo *TSInfo = DD->getTypeSourceInfo()) |
| if (Visit(TSInfo->getTypeLoc())) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitFunctionDecl(FunctionDecl *ND) { |
| if (VisitDeclaratorDecl(ND)) |
| return true; |
| |
| if (ND->isThisDeclarationADefinition() && |
| Visit(MakeCXCursor(ND->getBody(), StmtParent, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitFieldDecl(FieldDecl *D) { |
| if (VisitDeclaratorDecl(D)) |
| return true; |
| |
| if (Expr *BitWidth = D->getBitWidth()) |
| return Visit(MakeCXCursor(BitWidth, StmtParent, TU)); |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitVarDecl(VarDecl *D) { |
| if (VisitDeclaratorDecl(D)) |
| return true; |
| |
| if (Expr *Init = D->getInit()) |
| return Visit(MakeCXCursor(Init, StmtParent, TU)); |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitObjCMethodDecl(ObjCMethodDecl *ND) { |
| if (TypeSourceInfo *TSInfo = ND->getResultTypeSourceInfo()) |
| if (Visit(TSInfo->getTypeLoc())) |
| return true; |
| |
| for (ObjCMethodDecl::param_iterator P = ND->param_begin(), |
| PEnd = ND->param_end(); |
| P != PEnd; ++P) { |
| if (Visit(MakeCXCursor(*P, TU))) |
| return true; |
| } |
| |
| if (ND->isThisDeclarationADefinition() && |
| Visit(MakeCXCursor(ND->getBody(), StmtParent, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitObjCContainerDecl(ObjCContainerDecl *D) { |
| return VisitDeclContext(D); |
| } |
| |
| bool CursorVisitor::VisitObjCCategoryDecl(ObjCCategoryDecl *ND) { |
| if (Visit(MakeCursorObjCClassRef(ND->getClassInterface(), ND->getLocation(), |
| TU))) |
| return true; |
| |
| ObjCCategoryDecl::protocol_loc_iterator PL = ND->protocol_loc_begin(); |
| for (ObjCCategoryDecl::protocol_iterator I = ND->protocol_begin(), |
| E = ND->protocol_end(); I != E; ++I, ++PL) |
| if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) |
| return true; |
| |
| return VisitObjCContainerDecl(ND); |
| } |
| |
| bool CursorVisitor::VisitObjCProtocolDecl(ObjCProtocolDecl *PID) { |
| ObjCProtocolDecl::protocol_loc_iterator PL = PID->protocol_loc_begin(); |
| for (ObjCProtocolDecl::protocol_iterator I = PID->protocol_begin(), |
| E = PID->protocol_end(); I != E; ++I, ++PL) |
| if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) |
| return true; |
| |
| return VisitObjCContainerDecl(PID); |
| } |
| |
| bool CursorVisitor::VisitObjCPropertyDecl(ObjCPropertyDecl *PD) { |
| // FIXME: This implements a workaround with @property declarations also being |
| // installed in the DeclContext for the @interface. Eventually this code |
| // should be removed. |
| ObjCCategoryDecl *CDecl = dyn_cast<ObjCCategoryDecl>(PD->getDeclContext()); |
| if (!CDecl || !CDecl->IsClassExtension()) |
| return false; |
| |
| ObjCInterfaceDecl *ID = CDecl->getClassInterface(); |
| if (!ID) |
| return false; |
| |
| IdentifierInfo *PropertyId = PD->getIdentifier(); |
| ObjCPropertyDecl *prevDecl = |
| ObjCPropertyDecl::findPropertyDecl(cast<DeclContext>(ID), PropertyId); |
| |
| if (!prevDecl) |
| return false; |
| |
| // Visit synthesized methods since they will be skipped when visiting |
| // the @interface. |
| if (ObjCMethodDecl *MD = prevDecl->getGetterMethodDecl()) |
| if (MD->isSynthesized()) |
| if (Visit(MakeCXCursor(MD, TU))) |
| return true; |
| |
| if (ObjCMethodDecl *MD = prevDecl->getSetterMethodDecl()) |
| if (MD->isSynthesized()) |
| if (Visit(MakeCXCursor(MD, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitObjCInterfaceDecl(ObjCInterfaceDecl *D) { |
| // Issue callbacks for super class. |
| if (D->getSuperClass() && |
| Visit(MakeCursorObjCSuperClassRef(D->getSuperClass(), |
| D->getSuperClassLoc(), |
| TU))) |
| return true; |
| |
| ObjCInterfaceDecl::protocol_loc_iterator PL = D->protocol_loc_begin(); |
| for (ObjCInterfaceDecl::protocol_iterator I = D->protocol_begin(), |
| E = D->protocol_end(); I != E; ++I, ++PL) |
| if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) |
| return true; |
| |
| return VisitObjCContainerDecl(D); |
| } |
| |
| bool CursorVisitor::VisitObjCImplDecl(ObjCImplDecl *D) { |
| return VisitObjCContainerDecl(D); |
| } |
| |
| bool CursorVisitor::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) { |
| // 'ID' could be null when dealing with invalid code. |
| if (ObjCInterfaceDecl *ID = D->getClassInterface()) |
| if (Visit(MakeCursorObjCClassRef(ID, D->getLocation(), TU))) |
| return true; |
| |
| return VisitObjCImplDecl(D); |
| } |
| |
| bool CursorVisitor::VisitObjCImplementationDecl(ObjCImplementationDecl *D) { |
| #if 0 |
| // Issue callbacks for super class. |
| // FIXME: No source location information! |
| if (D->getSuperClass() && |
| Visit(MakeCursorObjCSuperClassRef(D->getSuperClass(), |
| D->getSuperClassLoc(), |
| TU))) |
| return true; |
| #endif |
| |
| return VisitObjCImplDecl(D); |
| } |
| |
| bool CursorVisitor::VisitObjCForwardProtocolDecl(ObjCForwardProtocolDecl *D) { |
| ObjCForwardProtocolDecl::protocol_loc_iterator PL = D->protocol_loc_begin(); |
| for (ObjCForwardProtocolDecl::protocol_iterator I = D->protocol_begin(), |
| E = D->protocol_end(); |
| I != E; ++I, ++PL) |
| if (Visit(MakeCursorObjCProtocolRef(*I, *PL, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitObjCClassDecl(ObjCClassDecl *D) { |
| for (ObjCClassDecl::iterator C = D->begin(), CEnd = D->end(); C != CEnd; ++C) |
| if (Visit(MakeCursorObjCClassRef(C->getInterface(), C->getLocation(), TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitNamespaceDecl(NamespaceDecl *D) { |
| return VisitDeclContext(D); |
| } |
| |
| bool CursorVisitor::VisitLinkageSpecDecl(LinkageSpecDecl *D) { |
| return VisitDeclContext(D); |
| } |
| |
| bool CursorVisitor::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) { |
| ASTContext &Context = TU->getASTContext(); |
| |
| // Some builtin types (such as Objective-C's "id", "sel", and |
| // "Class") have associated declarations. Create cursors for those. |
| QualType VisitType; |
| switch (TL.getType()->getAs<BuiltinType>()->getKind()) { |
| case BuiltinType::Void: |
| case BuiltinType::Bool: |
| case BuiltinType::Char_U: |
| case BuiltinType::UChar: |
| case BuiltinType::Char16: |
| case BuiltinType::Char32: |
| case BuiltinType::UShort: |
| case BuiltinType::UInt: |
| case BuiltinType::ULong: |
| case BuiltinType::ULongLong: |
| case BuiltinType::UInt128: |
| case BuiltinType::Char_S: |
| case BuiltinType::SChar: |
| case BuiltinType::WChar: |
| case BuiltinType::Short: |
| case BuiltinType::Int: |
| case BuiltinType::Long: |
| case BuiltinType::LongLong: |
| case BuiltinType::Int128: |
| case BuiltinType::Float: |
| case BuiltinType::Double: |
| case BuiltinType::LongDouble: |
| case BuiltinType::NullPtr: |
| case BuiltinType::Overload: |
| case BuiltinType::Dependent: |
| break; |
| |
| case BuiltinType::UndeducedAuto: // FIXME: Deserves a cursor? |
| break; |
| |
| case BuiltinType::ObjCId: |
| VisitType = Context.getObjCIdType(); |
| break; |
| |
| case BuiltinType::ObjCClass: |
| VisitType = Context.getObjCClassType(); |
| break; |
| |
| case BuiltinType::ObjCSel: |
| VisitType = Context.getObjCSelType(); |
| break; |
| } |
| |
| if (!VisitType.isNull()) { |
| if (const TypedefType *Typedef = VisitType->getAs<TypedefType>()) |
| return Visit(MakeCursorTypeRef(Typedef->getDecl(), TL.getBuiltinLoc(), |
| TU)); |
| } |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitTypedefTypeLoc(TypedefTypeLoc TL) { |
| return Visit(MakeCursorTypeRef(TL.getTypedefDecl(), TL.getNameLoc(), TU)); |
| } |
| |
| bool CursorVisitor::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) { |
| return Visit(MakeCursorTypeRef(TL.getDecl(), TL.getNameLoc(), TU)); |
| } |
| |
| bool CursorVisitor::VisitTagTypeLoc(TagTypeLoc TL) { |
| return Visit(MakeCursorTypeRef(TL.getDecl(), TL.getNameLoc(), TU)); |
| } |
| |
| bool CursorVisitor::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) { |
| if (Visit(MakeCursorObjCClassRef(TL.getIFaceDecl(), TL.getNameLoc(), TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) { |
| if (TL.hasBaseTypeAsWritten() && Visit(TL.getBaseLoc())) |
| return true; |
| |
| for (unsigned I = 0, N = TL.getNumProtocols(); I != N; ++I) { |
| if (Visit(MakeCursorObjCProtocolRef(TL.getProtocol(I), TL.getProtocolLoc(I), |
| TU))) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) { |
| return Visit(TL.getPointeeLoc()); |
| } |
| |
| bool CursorVisitor::VisitPointerTypeLoc(PointerTypeLoc TL) { |
| return Visit(TL.getPointeeLoc()); |
| } |
| |
| bool CursorVisitor::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) { |
| return Visit(TL.getPointeeLoc()); |
| } |
| |
| bool CursorVisitor::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) { |
| return Visit(TL.getPointeeLoc()); |
| } |
| |
| bool CursorVisitor::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) { |
| return Visit(TL.getPointeeLoc()); |
| } |
| |
| bool CursorVisitor::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) { |
| return Visit(TL.getPointeeLoc()); |
| } |
| |
| bool CursorVisitor::VisitFunctionTypeLoc(FunctionTypeLoc TL) { |
| if (Visit(TL.getResultLoc())) |
| return true; |
| |
| for (unsigned I = 0, N = TL.getNumArgs(); I != N; ++I) |
| if (Decl *D = TL.getArg(I)) |
| if (Visit(MakeCXCursor(D, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitArrayTypeLoc(ArrayTypeLoc TL) { |
| if (Visit(TL.getElementLoc())) |
| return true; |
| |
| if (Expr *Size = TL.getSizeExpr()) |
| return Visit(MakeCXCursor(Size, StmtParent, TU)); |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) { |
| return Visit(MakeCXCursor(TL.getUnderlyingExpr(), StmtParent, TU)); |
| } |
| |
| bool CursorVisitor::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) { |
| if (TypeSourceInfo *TSInfo = TL.getUnderlyingTInfo()) |
| return Visit(TSInfo->getTypeLoc()); |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitStmt(Stmt *S) { |
| for (Stmt::child_iterator Child = S->child_begin(), ChildEnd = S->child_end(); |
| Child != ChildEnd; ++Child) { |
| if (Stmt *C = *Child) |
| if (Visit(MakeCXCursor(C, StmtParent, TU))) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitCaseStmt(CaseStmt *S) { |
| // Specially handle CaseStmts because they can be nested, e.g.: |
| // |
| // case 1: |
| // case 2: |
| // |
| // In this case the second CaseStmt is the child of the first. Walking |
| // these recursively can blow out the stack. |
| CXCursor Cursor = MakeCXCursor(S, StmtParent, TU); |
| while (true) { |
| // Set the Parent field to Cursor, then back to its old value once we're |
| // done. |
| SetParentRAII SetParent(Parent, StmtParent, Cursor); |
| |
| if (Stmt *LHS = S->getLHS()) |
| if (Visit(MakeCXCursor(LHS, StmtParent, TU))) |
| return true; |
| if (Stmt *RHS = S->getRHS()) |
| if (Visit(MakeCXCursor(RHS, StmtParent, TU))) |
| return true; |
| if (Stmt *SubStmt = S->getSubStmt()) { |
| if (!isa<CaseStmt>(SubStmt)) |
| return Visit(MakeCXCursor(SubStmt, StmtParent, TU)); |
| |
| // Specially handle 'CaseStmt' so that we don't blow out the stack. |
| CaseStmt *CS = cast<CaseStmt>(SubStmt); |
| Cursor = MakeCXCursor(CS, StmtParent, TU); |
| if (RegionOfInterest.isValid()) { |
| SourceRange Range = CS->getSourceRange(); |
| if (Range.isInvalid() || CompareRegionOfInterest(Range)) |
| return false; |
| } |
| |
| switch (Visitor(Cursor, Parent, ClientData)) { |
| case CXChildVisit_Break: return true; |
| case CXChildVisit_Continue: return false; |
| case CXChildVisit_Recurse: |
| // Perform tail-recursion manually. |
| S = CS; |
| continue; |
| } |
| } |
| return false; |
| } |
| } |
| |
| bool CursorVisitor::VisitDeclStmt(DeclStmt *S) { |
| for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end(); |
| D != DEnd; ++D) { |
| if (*D && Visit(MakeCXCursor(*D, TU))) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitIfStmt(IfStmt *S) { |
| if (VarDecl *Var = S->getConditionVariable()) { |
| if (Visit(MakeCXCursor(Var, TU))) |
| return true; |
| } |
| |
| if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) |
| return true; |
| if (S->getThen() && Visit(MakeCXCursor(S->getThen(), StmtParent, TU))) |
| return true; |
| if (S->getElse() && Visit(MakeCXCursor(S->getElse(), StmtParent, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitSwitchStmt(SwitchStmt *S) { |
| if (VarDecl *Var = S->getConditionVariable()) { |
| if (Visit(MakeCXCursor(Var, TU))) |
| return true; |
| } |
| |
| if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) |
| return true; |
| if (S->getBody() && Visit(MakeCXCursor(S->getBody(), StmtParent, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitWhileStmt(WhileStmt *S) { |
| if (VarDecl *Var = S->getConditionVariable()) { |
| if (Visit(MakeCXCursor(Var, TU))) |
| return true; |
| } |
| |
| if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) |
| return true; |
| if (S->getBody() && Visit(MakeCXCursor(S->getBody(), StmtParent, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitForStmt(ForStmt *S) { |
| if (S->getInit() && Visit(MakeCXCursor(S->getInit(), StmtParent, TU))) |
| return true; |
| if (VarDecl *Var = S->getConditionVariable()) { |
| if (Visit(MakeCXCursor(Var, TU))) |
| return true; |
| } |
| |
| if (S->getCond() && Visit(MakeCXCursor(S->getCond(), StmtParent, TU))) |
| return true; |
| if (S->getInc() && Visit(MakeCXCursor(S->getInc(), StmtParent, TU))) |
| return true; |
| if (S->getBody() && Visit(MakeCXCursor(S->getBody(), StmtParent, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| bool CursorVisitor::VisitBlockExpr(BlockExpr *B) { |
| return Visit(B->getBlockDecl()); |
| } |
| |
| bool CursorVisitor::VisitOffsetOfExpr(OffsetOfExpr *E) { |
| // FIXME: Visit fields as well? |
| if (Visit(E->getTypeSourceInfo()->getTypeLoc())) |
| return true; |
| |
| return VisitExpr(E); |
| } |
| |
| bool CursorVisitor::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *E) { |
| if (E->isArgumentType()) { |
| if (TypeSourceInfo *TSInfo = E->getArgumentTypeInfo()) |
| return Visit(TSInfo->getTypeLoc()); |
| |
| return false; |
| } |
| |
| return VisitExpr(E); |
| } |
| |
| bool CursorVisitor::VisitExplicitCastExpr(ExplicitCastExpr *E) { |
| if (TypeSourceInfo *TSInfo = E->getTypeInfoAsWritten()) |
| if (Visit(TSInfo->getTypeLoc())) |
| return true; |
| |
| return VisitCastExpr(E); |
| } |
| |
| bool CursorVisitor::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) { |
| if (TypeSourceInfo *TSInfo = E->getTypeSourceInfo()) |
| if (Visit(TSInfo->getTypeLoc())) |
| return true; |
| |
| return VisitExpr(E); |
| } |
| |
| bool CursorVisitor::VisitObjCMessageExpr(ObjCMessageExpr *E) { |
| if (TypeSourceInfo *TSInfo = E->getClassReceiverTypeInfo()) |
| if (Visit(TSInfo->getTypeLoc())) |
| return true; |
| |
| return VisitExpr(E); |
| } |
| |
| bool CursorVisitor::VisitObjCEncodeExpr(ObjCEncodeExpr *E) { |
| return Visit(E->getEncodedTypeSourceInfo()->getTypeLoc()); |
| } |
| |
| |
| bool CursorVisitor::VisitAttributes(Decl *D) { |
| for (const Attr *A = D->getAttrs(); A; A = A->getNext()) |
| if (Visit(MakeCXCursor(A, D, TU))) |
| return true; |
| |
| return false; |
| } |
| |
| extern "C" { |
| CXIndex clang_createIndex(int excludeDeclarationsFromPCH, |
| int displayDiagnostics) { |
| CIndexer *CIdxr = new CIndexer(); |
| if (excludeDeclarationsFromPCH) |
| CIdxr->setOnlyLocalDecls(); |
| if (displayDiagnostics) |
| CIdxr->setDisplayDiagnostics(); |
| return CIdxr; |
| } |
| |
| void clang_disposeIndex(CXIndex CIdx) { |
| if (CIdx) |
| delete static_cast<CIndexer *>(CIdx); |
| } |
| |
| void clang_setUseExternalASTGeneration(CXIndex CIdx, int value) { |
| if (CIdx) { |
| CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); |
| CXXIdx->setUseExternalASTGeneration(value); |
| } |
| } |
| |
| CXTranslationUnit clang_createTranslationUnit(CXIndex CIdx, |
| const char *ast_filename) { |
| if (!CIdx) |
| return 0; |
| |
| CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); |
| |
| llvm::IntrusiveRefCntPtr<Diagnostic> Diags; |
| return ASTUnit::LoadFromPCHFile(ast_filename, Diags, |
| CXXIdx->getOnlyLocalDecls(), |
| 0, 0, true); |
| } |
| |
| CXTranslationUnit |
| clang_createTranslationUnitFromSourceFile(CXIndex CIdx, |
| const char *source_filename, |
| int num_command_line_args, |
| const char **command_line_args, |
| unsigned num_unsaved_files, |
| struct CXUnsavedFile *unsaved_files) { |
| if (!CIdx) |
| return 0; |
| |
| CIndexer *CXXIdx = static_cast<CIndexer *>(CIdx); |
| |
| // Configure the diagnostics. |
| DiagnosticOptions DiagOpts; |
| llvm::IntrusiveRefCntPtr<Diagnostic> Diags; |
| Diags = CompilerInstance::createDiagnostics(DiagOpts, 0, 0); |
| |
| llvm::SmallVector<ASTUnit::RemappedFile, 4> RemappedFiles; |
| for (unsigned I = 0; I != num_unsaved_files; ++I) { |
| llvm::StringRef Data(unsaved_files[I].Contents, unsaved_files[I].Length); |
| const llvm::MemoryBuffer *Buffer |
| = llvm::MemoryBuffer::getMemBufferCopy(Data, unsaved_files[I].Filename); |
| RemappedFiles.push_back(std::make_pair(unsaved_files[I].Filename, |
| Buffer)); |
| } |
| |
| if (!CXXIdx->getUseExternalASTGeneration()) { |
| llvm::SmallVector<const char *, 16> Args; |
| |
| // The 'source_filename' argument is optional. If the caller does not |
| // specify it then it is assumed that the source file is specified |
| // in the actual argument list. |
| if (source_filename) |
| Args.push_back(source_filename); |
| Args.insert(Args.end(), command_line_args, |
| command_line_args + num_command_line_args); |
| Args.push_back("-Xclang"); |
| Args.push_back("-detailed-preprocessing-record"); |
| unsigned NumErrors = Diags->getNumErrors(); |
| |
| #ifdef USE_CRASHTRACER |
| ArgsCrashTracerInfo ACTI(Args); |
| #endif |
| |
| llvm::OwningPtr<ASTUnit> Unit( |
| ASTUnit::LoadFromCommandLine(Args.data(), Args.data() + Args.size(), |
| Diags, |
| CXXIdx->getClangResourcesPath(), |
| CXXIdx->getOnlyLocalDecls(), |
| RemappedFiles.data(), |
| RemappedFiles.size(), |
| /*CaptureDiagnostics=*/true)); |
| |
| if (NumErrors != Diags->getNumErrors()) { |
| // Make sure to check that 'Unit' is non-NULL. |
| if (CXXIdx->getDisplayDiagnostics() && Unit.get()) { |
| for (ASTUnit::stored_diag_iterator D = Unit->stored_diag_begin(), |
| DEnd = Unit->stored_diag_end(); |
| D != DEnd; ++D) { |
| CXStoredDiagnostic Diag(*D, Unit->getASTContext().getLangOptions()); |
| CXString Msg = clang_formatDiagnostic(&Diag, |
| clang_defaultDiagnosticDisplayOptions()); |
| fprintf(stderr, "%s\n", clang_getCString(Msg)); |
| clang_disposeString(Msg); |
| } |
| #ifdef LLVM_ON_WIN32 |
| // On Windows, force a flush, since there may be multiple copies of |
| // stderr and stdout in the file system, all with different buffers |
| // but writing to the same device. |
| fflush(stderr); |
| #endif |
| } |
| } |
| |
| return Unit.take(); |
| } |
| |
| // Build up the arguments for invoking 'clang'. |
| std::vector<const char *> argv; |
| |
| // First add the complete path to the 'clang' executable. |
| llvm::sys::Path ClangPath = static_cast<CIndexer *>(CIdx)->getClangPath(); |
| argv.push_back(ClangPath.c_str()); |
| |
| // Add the '-emit-ast' option as our execution mode for 'clang'. |
| argv.push_back("-emit-ast"); |
| |
| // The 'source_filename' argument is optional. If the caller does not |
| // specify it then it is assumed that the source file is specified |
| // in the actual argument list. |
| if (source_filename) |
| argv.push_back(source_filename); |
| |
| // Generate a temporary name for the AST file. |
| argv.push_back("-o"); |
| char astTmpFile[L_tmpnam]; |
| argv.push_back(tmpnam(astTmpFile)); |
| |
| // Remap any unsaved files to temporary files. |
| std::vector<llvm::sys::Path> TemporaryFiles; |
| std::vector<std::string> RemapArgs; |
| if (RemapFiles(num_unsaved_files, unsaved_files, RemapArgs, TemporaryFiles)) |
| return 0; |
| |
| // The pointers into the elements of RemapArgs are stable because we |
| // won't be adding anything to RemapArgs after this point. |
| for (unsigned i = 0, e = RemapArgs.size(); i != e; ++i) |
| argv.push_back(RemapArgs[i].c_str()); |
| |
| // Process the compiler options, stripping off '-o', '-c', '-fsyntax-only'. |
| for (int i = 0; i < num_command_line_args; ++i) |
| if (const char *arg = command_line_args[i]) { |
| if (strcmp(arg, "-o") == 0) { |
| ++i; // Also skip the matching argument. |
| continue; |
| } |
| if (strcmp(arg, "-emit-ast") == 0 || |
| strcmp(arg, "-c") == 0 || |
| strcmp(arg, "-fsyntax-only") == 0) { |
| continue; |
| } |
| |
| // Keep the argument. |
| argv.push_back(arg); |
| } |
| |
| // Generate a temporary name for the diagnostics file. |
| char tmpFileResults[L_tmpnam]; |
| char *tmpResultsFileName = tmpnam(tmpFileResults); |
| llvm::sys::Path DiagnosticsFile(tmpResultsFileName); |
| TemporaryFiles.push_back(DiagnosticsFile); |
| argv.push_back("-fdiagnostics-binary"); |
| |
| argv.push_back("-Xclang"); |
| argv.push_back("-detailed-preprocessing-record"); |
| |
| // Add the null terminator. |
| argv.push_back(NULL); |
| |
| // Invoke 'clang'. |
| llvm::sys::Path DevNull; // leave empty, causes redirection to /dev/null |
| // on Unix or NUL (Windows). |
| std::string ErrMsg; |
| const llvm::sys::Path *Redirects[] = { &DevNull, &DevNull, &DiagnosticsFile, |
| NULL }; |
| llvm::sys::Program::ExecuteAndWait(ClangPath, &argv[0], /* env */ NULL, |
| /* redirects */ &Redirects[0], |
| /* secondsToWait */ 0, /* memoryLimits */ 0, &ErrMsg); |
| |
| if (!ErrMsg.empty()) { |
| std::string AllArgs; |
| for (std::vector<const char*>::iterator I = argv.begin(), E = argv.end(); |
| I != E; ++I) { |
| AllArgs += ' '; |
| if (*I) |
| AllArgs += *I; |
| } |
| |
| Diags->Report(diag::err_fe_invoking) << AllArgs << ErrMsg; |
| } |
| |
| ASTUnit *ATU = ASTUnit::LoadFromPCHFile(astTmpFile, Diags, |
| CXXIdx->getOnlyLocalDecls(), |
| RemappedFiles.data(), |
| RemappedFiles.size(), |
| /*CaptureDiagnostics=*/true); |
| if (ATU) { |
| LoadSerializedDiagnostics(DiagnosticsFile, |
| num_unsaved_files, unsaved_files, |
| ATU->getFileManager(), |
| ATU->getSourceManager(), |
| ATU->getStoredDiagnostics()); |
| } else if (CXXIdx->getDisplayDiagnostics()) { |
| // We failed to load the ASTUnit, but we can still deserialize the |
| // diagnostics and emit them. |
| FileManager FileMgr; |
| Diagnostic Diag; |
| SourceManager SourceMgr(Diag); |
| // FIXME: Faked LangOpts! |
| LangOptions LangOpts; |
| llvm::SmallVector<StoredDiagnostic, 4> Diags; |
| LoadSerializedDiagnostics(DiagnosticsFile, |
| num_unsaved_files, unsaved_files, |
| FileMgr, SourceMgr, Diags); |
| for (llvm::SmallVector<StoredDiagnostic, 4>::iterator D = Diags.begin(), |
| DEnd = Diags.end(); |
| D != DEnd; ++D) { |
| CXStoredDiagnostic Diag(*D, LangOpts); |
| CXString Msg = clang_formatDiagnostic(&Diag, |
| clang_defaultDiagnosticDisplayOptions()); |
| fprintf(stderr, "%s\n", clang_getCString(Msg)); |
| clang_disposeString(Msg); |
| } |
| |
| #ifdef LLVM_ON_WIN32 |
| // On Windows, force a flush, since there may be multiple copies of |
| // stderr and stdout in the file system, all with different buffers |
| // but writing to the same device. |
| fflush(stderr); |
| #endif |
| } |
| |
| if (ATU) { |
| // Make the translation unit responsible for destroying all temporary files. |
| for (unsigned i = 0, e = TemporaryFiles.size(); i != e; ++i) |
| ATU->addTemporaryFile(TemporaryFiles[i]); |
| ATU->addTemporaryFile(llvm::sys::Path(ATU->getPCHFileName())); |
| } else { |
| // Destroy all of the temporary files now; they can't be referenced any |
| // longer. |
| llvm::sys::Path(astTmpFile).eraseFromDisk(); |
| for (unsigned i = 0, e = TemporaryFiles.size(); i != e; ++i) |
| TemporaryFiles[i].eraseFromDisk(); |
| } |
| |
| return ATU; |
| } |
| |
| void clang_disposeTranslationUnit(CXTranslationUnit CTUnit) { |
| if (CTUnit) |
| delete static_cast<ASTUnit *>(CTUnit); |
| } |
| |
| CXString clang_getTranslationUnitSpelling(CXTranslationUnit CTUnit) { |
| if (!CTUnit) |
| return createCXString(""); |
| |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(CTUnit); |
| return createCXString(CXXUnit->getOriginalSourceFileName(), true); |
| } |
| |
| CXCursor clang_getTranslationUnitCursor(CXTranslationUnit TU) { |
| CXCursor Result = { CXCursor_TranslationUnit, { 0, 0, TU } }; |
| return Result; |
| } |
| |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // CXSourceLocation and CXSourceRange Operations. |
| //===----------------------------------------------------------------------===// |
| |
| extern "C" { |
| CXSourceLocation clang_getNullLocation() { |
| CXSourceLocation Result = { { 0, 0 }, 0 }; |
| return Result; |
| } |
| |
| unsigned clang_equalLocations(CXSourceLocation loc1, CXSourceLocation loc2) { |
| return (loc1.ptr_data[0] == loc2.ptr_data[0] && |
| loc1.ptr_data[1] == loc2.ptr_data[1] && |
| loc1.int_data == loc2.int_data); |
| } |
| |
| CXSourceLocation clang_getLocation(CXTranslationUnit tu, |
| CXFile file, |
| unsigned line, |
| unsigned column) { |
| if (!tu || !file) |
| return clang_getNullLocation(); |
| |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(tu); |
| SourceLocation SLoc |
| = CXXUnit->getSourceManager().getLocation( |
| static_cast<const FileEntry *>(file), |
| line, column); |
| |
| return cxloc::translateSourceLocation(CXXUnit->getASTContext(), SLoc); |
| } |
| |
| CXSourceRange clang_getNullRange() { |
| CXSourceRange Result = { { 0, 0 }, 0, 0 }; |
| return Result; |
| } |
| |
| CXSourceRange clang_getRange(CXSourceLocation begin, CXSourceLocation end) { |
| if (begin.ptr_data[0] != end.ptr_data[0] || |
| begin.ptr_data[1] != end.ptr_data[1]) |
| return clang_getNullRange(); |
| |
| CXSourceRange Result = { { begin.ptr_data[0], begin.ptr_data[1] }, |
| begin.int_data, end.int_data }; |
| return Result; |
| } |
| |
| void clang_getInstantiationLocation(CXSourceLocation location, |
| CXFile *file, |
| unsigned *line, |
| unsigned *column, |
| unsigned *offset) { |
| SourceLocation Loc = SourceLocation::getFromRawEncoding(location.int_data); |
| |
| if (!location.ptr_data[0] || Loc.isInvalid()) { |
| if (file) |
| *file = 0; |
| if (line) |
| *line = 0; |
| if (column) |
| *column = 0; |
| if (offset) |
| *offset = 0; |
| return; |
| } |
| |
| const SourceManager &SM = |
| *static_cast<const SourceManager*>(location.ptr_data[0]); |
| SourceLocation InstLoc = SM.getInstantiationLoc(Loc); |
| |
| if (file) |
| *file = (void *)SM.getFileEntryForID(SM.getFileID(InstLoc)); |
| if (line) |
| *line = SM.getInstantiationLineNumber(InstLoc); |
| if (column) |
| *column = SM.getInstantiationColumnNumber(InstLoc); |
| if (offset) |
| *offset = SM.getDecomposedLoc(InstLoc).second; |
| } |
| |
| CXSourceLocation clang_getRangeStart(CXSourceRange range) { |
| CXSourceLocation Result = { { range.ptr_data[0], range.ptr_data[1] }, |
| range.begin_int_data }; |
| return Result; |
| } |
| |
| CXSourceLocation clang_getRangeEnd(CXSourceRange range) { |
| CXSourceLocation Result = { { range.ptr_data[0], range.ptr_data[1] }, |
| range.end_int_data }; |
| return Result; |
| } |
| |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // CXFile Operations. |
| //===----------------------------------------------------------------------===// |
| |
| extern "C" { |
| CXString clang_getFileName(CXFile SFile) { |
| if (!SFile) |
| return createCXString(NULL); |
| |
| FileEntry *FEnt = static_cast<FileEntry *>(SFile); |
| return createCXString(FEnt->getName()); |
| } |
| |
| time_t clang_getFileTime(CXFile SFile) { |
| if (!SFile) |
| return 0; |
| |
| FileEntry *FEnt = static_cast<FileEntry *>(SFile); |
| return FEnt->getModificationTime(); |
| } |
| |
| CXFile clang_getFile(CXTranslationUnit tu, const char *file_name) { |
| if (!tu) |
| return 0; |
| |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(tu); |
| |
| FileManager &FMgr = CXXUnit->getFileManager(); |
| const FileEntry *File = FMgr.getFile(file_name, file_name+strlen(file_name)); |
| return const_cast<FileEntry *>(File); |
| } |
| |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // CXCursor Operations. |
| //===----------------------------------------------------------------------===// |
| |
| static Decl *getDeclFromExpr(Stmt *E) { |
| if (DeclRefExpr *RefExpr = dyn_cast<DeclRefExpr>(E)) |
| return RefExpr->getDecl(); |
| if (MemberExpr *ME = dyn_cast<MemberExpr>(E)) |
| return ME->getMemberDecl(); |
| if (ObjCIvarRefExpr *RE = dyn_cast<ObjCIvarRefExpr>(E)) |
| return RE->getDecl(); |
| |
| if (CallExpr *CE = dyn_cast<CallExpr>(E)) |
| return getDeclFromExpr(CE->getCallee()); |
| if (CastExpr *CE = dyn_cast<CastExpr>(E)) |
| return getDeclFromExpr(CE->getSubExpr()); |
| if (ObjCMessageExpr *OME = dyn_cast<ObjCMessageExpr>(E)) |
| return OME->getMethodDecl(); |
| |
| return 0; |
| } |
| |
| static SourceLocation getLocationFromExpr(Expr *E) { |
| if (ObjCMessageExpr *Msg = dyn_cast<ObjCMessageExpr>(E)) |
| return /*FIXME:*/Msg->getLeftLoc(); |
| if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(E)) |
| return DRE->getLocation(); |
| if (MemberExpr *Member = dyn_cast<MemberExpr>(E)) |
| return Member->getMemberLoc(); |
| if (ObjCIvarRefExpr *Ivar = dyn_cast<ObjCIvarRefExpr>(E)) |
| return Ivar->getLocation(); |
| return E->getLocStart(); |
| } |
| |
| extern "C" { |
| |
| unsigned clang_visitChildren(CXCursor parent, |
| CXCursorVisitor visitor, |
| CXClientData client_data) { |
| ASTUnit *CXXUnit = getCursorASTUnit(parent); |
| |
| unsigned PCHLevel = Decl::MaxPCHLevel; |
| |
| // Set the PCHLevel to filter out unwanted decls if requested. |
| if (CXXUnit->getOnlyLocalDecls()) { |
| PCHLevel = 0; |
| |
| // If the main input was an AST, bump the level. |
| if (CXXUnit->isMainFileAST()) |
| ++PCHLevel; |
| } |
| |
| CursorVisitor CursorVis(CXXUnit, visitor, client_data, PCHLevel); |
| return CursorVis.VisitChildren(parent); |
| } |
| |
| static CXString getDeclSpelling(Decl *D) { |
| NamedDecl *ND = dyn_cast_or_null<NamedDecl>(D); |
| if (!ND) |
| return createCXString(""); |
| |
| if (ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(ND)) |
| return createCXString(OMD->getSelector().getAsString()); |
| |
| if (ObjCCategoryImplDecl *CIMP = dyn_cast<ObjCCategoryImplDecl>(ND)) |
| // No, this isn't the same as the code below. getIdentifier() is non-virtual |
| // and returns different names. NamedDecl returns the class name and |
| // ObjCCategoryImplDecl returns the category name. |
| return createCXString(CIMP->getIdentifier()->getNameStart()); |
| |
| llvm::SmallString<1024> S; |
| llvm::raw_svector_ostream os(S); |
| ND->printName(os); |
| |
| return createCXString(os.str()); |
| } |
| |
| CXString clang_getCursorSpelling(CXCursor C) { |
| if (clang_isTranslationUnit(C.kind)) |
| return clang_getTranslationUnitSpelling(C.data[2]); |
| |
| if (clang_isReference(C.kind)) { |
| switch (C.kind) { |
| case CXCursor_ObjCSuperClassRef: { |
| ObjCInterfaceDecl *Super = getCursorObjCSuperClassRef(C).first; |
| return createCXString(Super->getIdentifier()->getNameStart()); |
| } |
| case CXCursor_ObjCClassRef: { |
| ObjCInterfaceDecl *Class = getCursorObjCClassRef(C).first; |
| return createCXString(Class->getIdentifier()->getNameStart()); |
| } |
| case CXCursor_ObjCProtocolRef: { |
| ObjCProtocolDecl *OID = getCursorObjCProtocolRef(C).first; |
| assert(OID && "getCursorSpelling(): Missing protocol decl"); |
| return createCXString(OID->getIdentifier()->getNameStart()); |
| } |
| case CXCursor_TypeRef: { |
| TypeDecl *Type = getCursorTypeRef(C).first; |
| assert(Type && "Missing type decl"); |
| |
| return createCXString(getCursorContext(C).getTypeDeclType(Type). |
| getAsString()); |
| } |
| |
| default: |
| return createCXString("<not implemented>"); |
| } |
| } |
| |
| if (clang_isExpression(C.kind)) { |
| Decl *D = getDeclFromExpr(getCursorExpr(C)); |
| if (D) |
| return getDeclSpelling(D); |
| return createCXString(""); |
| } |
| |
| if (C.kind == CXCursor_MacroInstantiation) |
| return createCXString(getCursorMacroInstantiation(C)->getName() |
| ->getNameStart()); |
| |
| if (C.kind == CXCursor_MacroDefinition) |
| return createCXString(getCursorMacroDefinition(C)->getName() |
| ->getNameStart()); |
| |
| if (clang_isDeclaration(C.kind)) |
| return getDeclSpelling(getCursorDecl(C)); |
| |
| return createCXString(""); |
| } |
| |
| CXString clang_getCursorKindSpelling(enum CXCursorKind Kind) { |
| switch (Kind) { |
| case CXCursor_FunctionDecl: |
| return createCXString("FunctionDecl"); |
| case CXCursor_TypedefDecl: |
| return createCXString("TypedefDecl"); |
| case CXCursor_EnumDecl: |
| return createCXString("EnumDecl"); |
| case CXCursor_EnumConstantDecl: |
| return createCXString("EnumConstantDecl"); |
| case CXCursor_StructDecl: |
| return createCXString("StructDecl"); |
| case CXCursor_UnionDecl: |
| return createCXString("UnionDecl"); |
| case CXCursor_ClassDecl: |
| return createCXString("ClassDecl"); |
| case CXCursor_FieldDecl: |
| return createCXString("FieldDecl"); |
| case CXCursor_VarDecl: |
| return createCXString("VarDecl"); |
| case CXCursor_ParmDecl: |
| return createCXString("ParmDecl"); |
| case CXCursor_ObjCInterfaceDecl: |
| return createCXString("ObjCInterfaceDecl"); |
| case CXCursor_ObjCCategoryDecl: |
| return createCXString("ObjCCategoryDecl"); |
| case CXCursor_ObjCProtocolDecl: |
| return createCXString("ObjCProtocolDecl"); |
| case CXCursor_ObjCPropertyDecl: |
| return createCXString("ObjCPropertyDecl"); |
| case CXCursor_ObjCIvarDecl: |
| return createCXString("ObjCIvarDecl"); |
| case CXCursor_ObjCInstanceMethodDecl: |
| return createCXString("ObjCInstanceMethodDecl"); |
| case CXCursor_ObjCClassMethodDecl: |
| return createCXString("ObjCClassMethodDecl"); |
| case CXCursor_ObjCImplementationDecl: |
| return createCXString("ObjCImplementationDecl"); |
| case CXCursor_ObjCCategoryImplDecl: |
| return createCXString("ObjCCategoryImplDecl"); |
| case CXCursor_CXXMethod: |
| return createCXString("CXXMethod"); |
| case CXCursor_UnexposedDecl: |
| return createCXString("UnexposedDecl"); |
| case CXCursor_ObjCSuperClassRef: |
| return createCXString("ObjCSuperClassRef"); |
| case CXCursor_ObjCProtocolRef: |
| return createCXString("ObjCProtocolRef"); |
| case CXCursor_ObjCClassRef: |
| return createCXString("ObjCClassRef"); |
| case CXCursor_TypeRef: |
| return createCXString("TypeRef"); |
| case CXCursor_UnexposedExpr: |
| return createCXString("UnexposedExpr"); |
| case CXCursor_BlockExpr: |
| return createCXString("BlockExpr"); |
| case CXCursor_DeclRefExpr: |
| return createCXString("DeclRefExpr"); |
| case CXCursor_MemberRefExpr: |
| return createCXString("MemberRefExpr"); |
| case CXCursor_CallExpr: |
| return createCXString("CallExpr"); |
| case CXCursor_ObjCMessageExpr: |
| return createCXString("ObjCMessageExpr"); |
| case CXCursor_UnexposedStmt: |
| return createCXString("UnexposedStmt"); |
| case CXCursor_InvalidFile: |
| return createCXString("InvalidFile"); |
| case CXCursor_InvalidCode: |
| return createCXString("InvalidCode"); |
| case CXCursor_NoDeclFound: |
| return createCXString("NoDeclFound"); |
| case CXCursor_NotImplemented: |
| return createCXString("NotImplemented"); |
| case CXCursor_TranslationUnit: |
| return createCXString("TranslationUnit"); |
| case CXCursor_UnexposedAttr: |
| return createCXString("UnexposedAttr"); |
| case CXCursor_IBActionAttr: |
| return createCXString("attribute(ibaction)"); |
| case CXCursor_IBOutletAttr: |
| return createCXString("attribute(iboutlet)"); |
| case CXCursor_IBOutletCollectionAttr: |
| return createCXString("attribute(iboutletcollection)"); |
| case CXCursor_PreprocessingDirective: |
| return createCXString("preprocessing directive"); |
| case CXCursor_MacroDefinition: |
| return createCXString("macro definition"); |
| case CXCursor_MacroInstantiation: |
| return createCXString("macro instantiation"); |
| case CXCursor_Namespace: |
| return createCXString("Namespace"); |
| case CXCursor_LinkageSpec: |
| return createCXString("LinkageSpec"); |
| } |
| |
| llvm_unreachable("Unhandled CXCursorKind"); |
| return createCXString(NULL); |
| } |
| |
| enum CXChildVisitResult GetCursorVisitor(CXCursor cursor, |
| CXCursor parent, |
| CXClientData client_data) { |
| CXCursor *BestCursor = static_cast<CXCursor *>(client_data); |
| *BestCursor = cursor; |
| return CXChildVisit_Recurse; |
| } |
| |
| CXCursor clang_getCursor(CXTranslationUnit TU, CXSourceLocation Loc) { |
| if (!TU) |
| return clang_getNullCursor(); |
| |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); |
| |
| ASTUnit::ConcurrencyCheck Check(*CXXUnit); |
| |
| SourceLocation SLoc = cxloc::translateSourceLocation(Loc); |
| CXCursor Result = MakeCXCursorInvalid(CXCursor_NoDeclFound); |
| if (SLoc.isValid()) { |
| SourceRange RegionOfInterest(SLoc, SLoc.getFileLocWithOffset(1)); |
| |
| // FIXME: Would be great to have a "hint" cursor, then walk from that |
| // hint cursor upward until we find a cursor whose source range encloses |
| // the region of interest, rather than starting from the translation unit. |
| CXCursor Parent = clang_getTranslationUnitCursor(CXXUnit); |
| CursorVisitor CursorVis(CXXUnit, GetCursorVisitor, &Result, |
| Decl::MaxPCHLevel, RegionOfInterest); |
| CursorVis.VisitChildren(Parent); |
| } |
| return Result; |
| } |
| |
| CXCursor clang_getNullCursor(void) { |
| return MakeCXCursorInvalid(CXCursor_InvalidFile); |
| } |
| |
| unsigned clang_equalCursors(CXCursor X, CXCursor Y) { |
| return X == Y; |
| } |
| |
| unsigned clang_isInvalid(enum CXCursorKind K) { |
| return K >= CXCursor_FirstInvalid && K <= CXCursor_LastInvalid; |
| } |
| |
| unsigned clang_isDeclaration(enum CXCursorKind K) { |
| return K >= CXCursor_FirstDecl && K <= CXCursor_LastDecl; |
| } |
| |
| unsigned clang_isReference(enum CXCursorKind K) { |
| return K >= CXCursor_FirstRef && K <= CXCursor_LastRef; |
| } |
| |
| unsigned clang_isExpression(enum CXCursorKind K) { |
| return K >= CXCursor_FirstExpr && K <= CXCursor_LastExpr; |
| } |
| |
| unsigned clang_isStatement(enum CXCursorKind K) { |
| return K >= CXCursor_FirstStmt && K <= CXCursor_LastStmt; |
| } |
| |
| unsigned clang_isTranslationUnit(enum CXCursorKind K) { |
| return K == CXCursor_TranslationUnit; |
| } |
| |
| unsigned clang_isPreprocessing(enum CXCursorKind K) { |
| return K >= CXCursor_FirstPreprocessing && K <= CXCursor_LastPreprocessing; |
| } |
| |
| unsigned clang_isUnexposed(enum CXCursorKind K) { |
| switch (K) { |
| case CXCursor_UnexposedDecl: |
| case CXCursor_UnexposedExpr: |
| case CXCursor_UnexposedStmt: |
| case CXCursor_UnexposedAttr: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| CXCursorKind clang_getCursorKind(CXCursor C) { |
| return C.kind; |
| } |
| |
| CXSourceLocation clang_getCursorLocation(CXCursor C) { |
| if (clang_isReference(C.kind)) { |
| switch (C.kind) { |
| case CXCursor_ObjCSuperClassRef: { |
| std::pair<ObjCInterfaceDecl *, SourceLocation> P |
| = getCursorObjCSuperClassRef(C); |
| return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); |
| } |
| |
| case CXCursor_ObjCProtocolRef: { |
| std::pair<ObjCProtocolDecl *, SourceLocation> P |
| = getCursorObjCProtocolRef(C); |
| return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); |
| } |
| |
| case CXCursor_ObjCClassRef: { |
| std::pair<ObjCInterfaceDecl *, SourceLocation> P |
| = getCursorObjCClassRef(C); |
| return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); |
| } |
| |
| case CXCursor_TypeRef: { |
| std::pair<TypeDecl *, SourceLocation> P = getCursorTypeRef(C); |
| return cxloc::translateSourceLocation(P.first->getASTContext(), P.second); |
| } |
| |
| default: |
| // FIXME: Need a way to enumerate all non-reference cases. |
| llvm_unreachable("Missed a reference kind"); |
| } |
| } |
| |
| if (clang_isExpression(C.kind)) |
| return cxloc::translateSourceLocation(getCursorContext(C), |
| getLocationFromExpr(getCursorExpr(C))); |
| |
| if (C.kind == CXCursor_PreprocessingDirective) { |
| SourceLocation L = cxcursor::getCursorPreprocessingDirective(C).getBegin(); |
| return cxloc::translateSourceLocation(getCursorContext(C), L); |
| } |
| |
| if (C.kind == CXCursor_MacroInstantiation) { |
| SourceLocation L |
| = cxcursor::getCursorMacroInstantiation(C)->getSourceRange().getBegin(); |
| return cxloc::translateSourceLocation(getCursorContext(C), L); |
| } |
| |
| if (C.kind == CXCursor_MacroDefinition) { |
| SourceLocation L = cxcursor::getCursorMacroDefinition(C)->getLocation(); |
| return cxloc::translateSourceLocation(getCursorContext(C), L); |
| } |
| |
| if (C.kind < CXCursor_FirstDecl || C.kind > CXCursor_LastDecl) |
| return clang_getNullLocation(); |
| |
| Decl *D = getCursorDecl(C); |
| SourceLocation Loc = D->getLocation(); |
| if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(D)) |
| Loc = Class->getClassLoc(); |
| return cxloc::translateSourceLocation(getCursorContext(C), Loc); |
| } |
| |
| CXSourceRange clang_getCursorExtent(CXCursor C) { |
| if (clang_isReference(C.kind)) { |
| switch (C.kind) { |
| case CXCursor_ObjCSuperClassRef: { |
| std::pair<ObjCInterfaceDecl *, SourceLocation> P |
| = getCursorObjCSuperClassRef(C); |
| return cxloc::translateSourceRange(P.first->getASTContext(), P.second); |
| } |
| |
| case CXCursor_ObjCProtocolRef: { |
| std::pair<ObjCProtocolDecl *, SourceLocation> P |
| = getCursorObjCProtocolRef(C); |
| return cxloc::translateSourceRange(P.first->getASTContext(), P.second); |
| } |
| |
| case CXCursor_ObjCClassRef: { |
| std::pair<ObjCInterfaceDecl *, SourceLocation> P |
| = getCursorObjCClassRef(C); |
| |
| return cxloc::translateSourceRange(P.first->getASTContext(), P.second); |
| } |
| |
| case CXCursor_TypeRef: { |
| std::pair<TypeDecl *, SourceLocation> P = getCursorTypeRef(C); |
| return cxloc::translateSourceRange(P.first->getASTContext(), P.second); |
| } |
| |
| default: |
| // FIXME: Need a way to enumerate all non-reference cases. |
| llvm_unreachable("Missed a reference kind"); |
| } |
| } |
| |
| if (clang_isExpression(C.kind)) |
| return cxloc::translateSourceRange(getCursorContext(C), |
| getCursorExpr(C)->getSourceRange()); |
| |
| if (clang_isStatement(C.kind)) |
| return cxloc::translateSourceRange(getCursorContext(C), |
| getCursorStmt(C)->getSourceRange()); |
| |
| if (C.kind == CXCursor_PreprocessingDirective) { |
| SourceRange R = cxcursor::getCursorPreprocessingDirective(C); |
| return cxloc::translateSourceRange(getCursorContext(C), R); |
| } |
| |
| if (C.kind == CXCursor_MacroInstantiation) { |
| SourceRange R = cxcursor::getCursorMacroInstantiation(C)->getSourceRange(); |
| return cxloc::translateSourceRange(getCursorContext(C), R); |
| } |
| |
| if (C.kind == CXCursor_MacroDefinition) { |
| SourceRange R = cxcursor::getCursorMacroDefinition(C)->getSourceRange(); |
| return cxloc::translateSourceRange(getCursorContext(C), R); |
| } |
| |
| if (C.kind < CXCursor_FirstDecl || C.kind > CXCursor_LastDecl) |
| return clang_getNullRange(); |
| |
| Decl *D = getCursorDecl(C); |
| return cxloc::translateSourceRange(getCursorContext(C), D->getSourceRange()); |
| } |
| |
| CXCursor clang_getCursorReferenced(CXCursor C) { |
| if (clang_isInvalid(C.kind)) |
| return clang_getNullCursor(); |
| |
| ASTUnit *CXXUnit = getCursorASTUnit(C); |
| if (clang_isDeclaration(C.kind)) |
| return C; |
| |
| if (clang_isExpression(C.kind)) { |
| Decl *D = getDeclFromExpr(getCursorExpr(C)); |
| if (D) |
| return MakeCXCursor(D, CXXUnit); |
| return clang_getNullCursor(); |
| } |
| |
| if (C.kind == CXCursor_MacroInstantiation) { |
| if (MacroDefinition *Def = getCursorMacroInstantiation(C)->getDefinition()) |
| return MakeMacroDefinitionCursor(Def, CXXUnit); |
| } |
| |
| if (!clang_isReference(C.kind)) |
| return clang_getNullCursor(); |
| |
| switch (C.kind) { |
| case CXCursor_ObjCSuperClassRef: |
| return MakeCXCursor(getCursorObjCSuperClassRef(C).first, CXXUnit); |
| |
| case CXCursor_ObjCProtocolRef: { |
| return MakeCXCursor(getCursorObjCProtocolRef(C).first, CXXUnit); |
| |
| case CXCursor_ObjCClassRef: |
| return MakeCXCursor(getCursorObjCClassRef(C).first, CXXUnit); |
| |
| case CXCursor_TypeRef: |
| return MakeCXCursor(getCursorTypeRef(C).first, CXXUnit); |
| |
| default: |
| // We would prefer to enumerate all non-reference cursor kinds here. |
| llvm_unreachable("Unhandled reference cursor kind"); |
| break; |
| } |
| } |
| |
| return clang_getNullCursor(); |
| } |
| |
| CXCursor clang_getCursorDefinition(CXCursor C) { |
| if (clang_isInvalid(C.kind)) |
| return clang_getNullCursor(); |
| |
| ASTUnit *CXXUnit = getCursorASTUnit(C); |
| |
| bool WasReference = false; |
| if (clang_isReference(C.kind) || clang_isExpression(C.kind)) { |
| C = clang_getCursorReferenced(C); |
| WasReference = true; |
| } |
| |
| if (C.kind == CXCursor_MacroInstantiation) |
| return clang_getCursorReferenced(C); |
| |
| if (!clang_isDeclaration(C.kind)) |
| return clang_getNullCursor(); |
| |
| Decl *D = getCursorDecl(C); |
| if (!D) |
| return clang_getNullCursor(); |
| |
| switch (D->getKind()) { |
| // Declaration kinds that don't really separate the notions of |
| // declaration and definition. |
| case Decl::Namespace: |
| case Decl::Typedef: |
| case Decl::TemplateTypeParm: |
| case Decl::EnumConstant: |
| case Decl::Field: |
| case Decl::ObjCIvar: |
| case Decl::ObjCAtDefsField: |
| case Decl::ImplicitParam: |
| case Decl::ParmVar: |
| case Decl::NonTypeTemplateParm: |
| case Decl::TemplateTemplateParm: |
| case Decl::ObjCCategoryImpl: |
| case Decl::ObjCImplementation: |
| case Decl::LinkageSpec: |
| case Decl::ObjCPropertyImpl: |
| case Decl::FileScopeAsm: |
| case Decl::StaticAssert: |
| case Decl::Block: |
| return C; |
| |
| // Declaration kinds that don't make any sense here, but are |
| // nonetheless harmless. |
| case Decl::TranslationUnit: |
| break; |
| |
| // Declaration kinds for which the definition is not resolvable. |
| case Decl::UnresolvedUsingTypename: |
| case Decl::UnresolvedUsingValue: |
| break; |
| |
| case Decl::UsingDirective: |
| return MakeCXCursor(cast<UsingDirectiveDecl>(D)->getNominatedNamespace(), |
| CXXUnit); |
| |
| case Decl::NamespaceAlias: |
| return MakeCXCursor(cast<NamespaceAliasDecl>(D)->getNamespace(), CXXUnit); |
| |
| case Decl::Enum: |
| case Decl::Record: |
| case Decl::CXXRecord: |
| case Decl::ClassTemplateSpecialization: |
| case Decl::ClassTemplatePartialSpecialization: |
| if (TagDecl *Def = cast<TagDecl>(D)->getDefinition()) |
| return MakeCXCursor(Def, CXXUnit); |
| return clang_getNullCursor(); |
| |
| case Decl::Function: |
| case Decl::CXXMethod: |
| case Decl::CXXConstructor: |
| case Decl::CXXDestructor: |
| case Decl::CXXConversion: { |
| const FunctionDecl *Def = 0; |
| if (cast<FunctionDecl>(D)->getBody(Def)) |
| return MakeCXCursor(const_cast<FunctionDecl *>(Def), CXXUnit); |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::Var: { |
| // Ask the variable if it has a definition. |
| if (VarDecl *Def = cast<VarDecl>(D)->getDefinition()) |
| return MakeCXCursor(Def, CXXUnit); |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::FunctionTemplate: { |
| const FunctionDecl *Def = 0; |
| if (cast<FunctionTemplateDecl>(D)->getTemplatedDecl()->getBody(Def)) |
| return MakeCXCursor(Def->getDescribedFunctionTemplate(), CXXUnit); |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::ClassTemplate: { |
| if (RecordDecl *Def = cast<ClassTemplateDecl>(D)->getTemplatedDecl() |
| ->getDefinition()) |
| return MakeCXCursor( |
| cast<CXXRecordDecl>(Def)->getDescribedClassTemplate(), |
| CXXUnit); |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::Using: { |
| UsingDecl *Using = cast<UsingDecl>(D); |
| CXCursor Def = clang_getNullCursor(); |
| for (UsingDecl::shadow_iterator S = Using->shadow_begin(), |
| SEnd = Using->shadow_end(); |
| S != SEnd; ++S) { |
| if (Def != clang_getNullCursor()) { |
| // FIXME: We have no way to return multiple results. |
| return clang_getNullCursor(); |
| } |
| |
| Def = clang_getCursorDefinition(MakeCXCursor((*S)->getTargetDecl(), |
| CXXUnit)); |
| } |
| |
| return Def; |
| } |
| |
| case Decl::UsingShadow: |
| return clang_getCursorDefinition( |
| MakeCXCursor(cast<UsingShadowDecl>(D)->getTargetDecl(), |
| CXXUnit)); |
| |
| case Decl::ObjCMethod: { |
| ObjCMethodDecl *Method = cast<ObjCMethodDecl>(D); |
| if (Method->isThisDeclarationADefinition()) |
| return C; |
| |
| // Dig out the method definition in the associated |
| // @implementation, if we have it. |
| // FIXME: The ASTs should make finding the definition easier. |
| if (ObjCInterfaceDecl *Class |
| = dyn_cast<ObjCInterfaceDecl>(Method->getDeclContext())) |
| if (ObjCImplementationDecl *ClassImpl = Class->getImplementation()) |
| if (ObjCMethodDecl *Def = ClassImpl->getMethod(Method->getSelector(), |
| Method->isInstanceMethod())) |
| if (Def->isThisDeclarationADefinition()) |
| return MakeCXCursor(Def, CXXUnit); |
| |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::ObjCCategory: |
| if (ObjCCategoryImplDecl *Impl |
| = cast<ObjCCategoryDecl>(D)->getImplementation()) |
| return MakeCXCursor(Impl, CXXUnit); |
| return clang_getNullCursor(); |
| |
| case Decl::ObjCProtocol: |
| if (!cast<ObjCProtocolDecl>(D)->isForwardDecl()) |
| return C; |
| return clang_getNullCursor(); |
| |
| case Decl::ObjCInterface: |
| // There are two notions of a "definition" for an Objective-C |
| // class: the interface and its implementation. When we resolved a |
| // reference to an Objective-C class, produce the @interface as |
| // the definition; when we were provided with the interface, |
| // produce the @implementation as the definition. |
| if (WasReference) { |
| if (!cast<ObjCInterfaceDecl>(D)->isForwardDecl()) |
| return C; |
| } else if (ObjCImplementationDecl *Impl |
| = cast<ObjCInterfaceDecl>(D)->getImplementation()) |
| return MakeCXCursor(Impl, CXXUnit); |
| return clang_getNullCursor(); |
| |
| case Decl::ObjCProperty: |
| // FIXME: We don't really know where to find the |
| // ObjCPropertyImplDecls that implement this property. |
| return clang_getNullCursor(); |
| |
| case Decl::ObjCCompatibleAlias: |
| if (ObjCInterfaceDecl *Class |
| = cast<ObjCCompatibleAliasDecl>(D)->getClassInterface()) |
| if (!Class->isForwardDecl()) |
| return MakeCXCursor(Class, CXXUnit); |
| |
| return clang_getNullCursor(); |
| |
| case Decl::ObjCForwardProtocol: { |
| ObjCForwardProtocolDecl *Forward = cast<ObjCForwardProtocolDecl>(D); |
| if (Forward->protocol_size() == 1) |
| return clang_getCursorDefinition( |
| MakeCXCursor(*Forward->protocol_begin(), |
| CXXUnit)); |
| |
| // FIXME: Cannot return multiple definitions. |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::ObjCClass: { |
| ObjCClassDecl *Class = cast<ObjCClassDecl>(D); |
| if (Class->size() == 1) { |
| ObjCInterfaceDecl *IFace = Class->begin()->getInterface(); |
| if (!IFace->isForwardDecl()) |
| return MakeCXCursor(IFace, CXXUnit); |
| return clang_getNullCursor(); |
| } |
| |
| // FIXME: Cannot return multiple definitions. |
| return clang_getNullCursor(); |
| } |
| |
| case Decl::Friend: |
| if (NamedDecl *Friend = cast<FriendDecl>(D)->getFriendDecl()) |
| return clang_getCursorDefinition(MakeCXCursor(Friend, CXXUnit)); |
| return clang_getNullCursor(); |
| |
| case Decl::FriendTemplate: |
| if (NamedDecl *Friend = cast<FriendTemplateDecl>(D)->getFriendDecl()) |
| return clang_getCursorDefinition(MakeCXCursor(Friend, CXXUnit)); |
| return clang_getNullCursor(); |
| } |
| |
| return clang_getNullCursor(); |
| } |
| |
| unsigned clang_isCursorDefinition(CXCursor C) { |
| if (!clang_isDeclaration(C.kind)) |
| return 0; |
| |
| return clang_getCursorDefinition(C) == C; |
| } |
| |
| void clang_getDefinitionSpellingAndExtent(CXCursor C, |
| const char **startBuf, |
| const char **endBuf, |
| unsigned *startLine, |
| unsigned *startColumn, |
| unsigned *endLine, |
| unsigned *endColumn) { |
| assert(getCursorDecl(C) && "CXCursor has null decl"); |
| NamedDecl *ND = static_cast<NamedDecl *>(getCursorDecl(C)); |
| FunctionDecl *FD = dyn_cast<FunctionDecl>(ND); |
| CompoundStmt *Body = dyn_cast<CompoundStmt>(FD->getBody()); |
| |
| SourceManager &SM = FD->getASTContext().getSourceManager(); |
| *startBuf = SM.getCharacterData(Body->getLBracLoc()); |
| *endBuf = SM.getCharacterData(Body->getRBracLoc()); |
| *startLine = SM.getSpellingLineNumber(Body->getLBracLoc()); |
| *startColumn = SM.getSpellingColumnNumber(Body->getLBracLoc()); |
| *endLine = SM.getSpellingLineNumber(Body->getRBracLoc()); |
| *endColumn = SM.getSpellingColumnNumber(Body->getRBracLoc()); |
| } |
| |
| void clang_enableStackTraces(void) { |
| llvm::sys::PrintStackTraceOnErrorSignal(); |
| } |
| |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // Token-based Operations. |
| //===----------------------------------------------------------------------===// |
| |
| /* CXToken layout: |
| * int_data[0]: a CXTokenKind |
| * int_data[1]: starting token location |
| * int_data[2]: token length |
| * int_data[3]: reserved |
| * ptr_data: for identifiers and keywords, an IdentifierInfo*. |
| * otherwise unused. |
| */ |
| extern "C" { |
| |
| CXTokenKind clang_getTokenKind(CXToken CXTok) { |
| return static_cast<CXTokenKind>(CXTok.int_data[0]); |
| } |
| |
| CXString clang_getTokenSpelling(CXTranslationUnit TU, CXToken CXTok) { |
| switch (clang_getTokenKind(CXTok)) { |
| case CXToken_Identifier: |
| case CXToken_Keyword: |
| // We know we have an IdentifierInfo*, so use that. |
| return createCXString(static_cast<IdentifierInfo *>(CXTok.ptr_data) |
| ->getNameStart()); |
| |
| case CXToken_Literal: { |
| // We have stashed the starting pointer in the ptr_data field. Use it. |
| const char *Text = static_cast<const char *>(CXTok.ptr_data); |
| return createCXString(llvm::StringRef(Text, CXTok.int_data[2])); |
| } |
| |
| case CXToken_Punctuation: |
| case CXToken_Comment: |
| break; |
| } |
| |
| // We have to find the starting buffer pointer the hard way, by |
| // deconstructing the source location. |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); |
| if (!CXXUnit) |
| return createCXString(""); |
| |
| SourceLocation Loc = SourceLocation::getFromRawEncoding(CXTok.int_data[1]); |
| std::pair<FileID, unsigned> LocInfo |
| = CXXUnit->getSourceManager().getDecomposedLoc(Loc); |
| bool Invalid = false; |
| llvm::StringRef Buffer |
| = CXXUnit->getSourceManager().getBufferData(LocInfo.first, &Invalid); |
| if (Invalid) |
| return createCXString(""); |
| |
| return createCXString(Buffer.substr(LocInfo.second, CXTok.int_data[2])); |
| } |
| |
| CXSourceLocation clang_getTokenLocation(CXTranslationUnit TU, CXToken CXTok) { |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); |
| if (!CXXUnit) |
| return clang_getNullLocation(); |
| |
| return cxloc::translateSourceLocation(CXXUnit->getASTContext(), |
| SourceLocation::getFromRawEncoding(CXTok.int_data[1])); |
| } |
| |
| CXSourceRange clang_getTokenExtent(CXTranslationUnit TU, CXToken CXTok) { |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); |
| if (!CXXUnit) |
| return clang_getNullRange(); |
| |
| return cxloc::translateSourceRange(CXXUnit->getASTContext(), |
| SourceLocation::getFromRawEncoding(CXTok.int_data[1])); |
| } |
| |
| void clang_tokenize(CXTranslationUnit TU, CXSourceRange Range, |
| CXToken **Tokens, unsigned *NumTokens) { |
| if (Tokens) |
| *Tokens = 0; |
| if (NumTokens) |
| *NumTokens = 0; |
| |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); |
| if (!CXXUnit || !Tokens || !NumTokens) |
| return; |
| |
| ASTUnit::ConcurrencyCheck Check(*CXXUnit); |
| |
| SourceRange R = cxloc::translateCXSourceRange(Range); |
| if (R.isInvalid()) |
| return; |
| |
| SourceManager &SourceMgr = CXXUnit->getSourceManager(); |
| std::pair<FileID, unsigned> BeginLocInfo |
| = SourceMgr.getDecomposedLoc(R.getBegin()); |
| std::pair<FileID, unsigned> EndLocInfo |
| = SourceMgr.getDecomposedLoc(R.getEnd()); |
| |
| // Cannot tokenize across files. |
| if (BeginLocInfo.first != EndLocInfo.first) |
| return; |
| |
| // Create a lexer |
| bool Invalid = false; |
| llvm::StringRef Buffer |
| = SourceMgr.getBufferData(BeginLocInfo.first, &Invalid); |
| if (Invalid) |
| return; |
| |
| Lexer Lex(SourceMgr.getLocForStartOfFile(BeginLocInfo.first), |
| CXXUnit->getASTContext().getLangOptions(), |
| Buffer.begin(), Buffer.data() + BeginLocInfo.second, Buffer.end()); |
| Lex.SetCommentRetentionState(true); |
| |
| // Lex tokens until we hit the end of the range. |
| const char *EffectiveBufferEnd = Buffer.data() + EndLocInfo.second; |
| llvm::SmallVector<CXToken, 32> CXTokens; |
| Token Tok; |
| do { |
| // Lex the next token |
| Lex.LexFromRawLexer(Tok); |
| if (Tok.is(tok::eof)) |
| break; |
| |
| // Initialize the CXToken. |
| CXToken CXTok; |
| |
| // - Common fields |
| CXTok.int_data[1] = Tok.getLocation().getRawEncoding(); |
| CXTok.int_data[2] = Tok.getLength(); |
| CXTok.int_data[3] = 0; |
| |
| // - Kind-specific fields |
| if (Tok.isLiteral()) { |
| CXTok.int_data[0] = CXToken_Literal; |
| CXTok.ptr_data = (void *)Tok.getLiteralData(); |
| } else if (Tok.is(tok::identifier)) { |
| // Lookup the identifier to determine whether we have a keyword. |
| std::pair<FileID, unsigned> LocInfo |
| = SourceMgr.getDecomposedLoc(Tok.getLocation()); |
| bool Invalid = false; |
| llvm::StringRef Buf |
| = CXXUnit->getSourceManager().getBufferData(LocInfo.first, &Invalid); |
| if (Invalid) |
| return; |
| |
| const char *StartPos = Buf.data() + LocInfo.second; |
| IdentifierInfo *II |
| = CXXUnit->getPreprocessor().LookUpIdentifierInfo(Tok, StartPos); |
| |
| if (II->getObjCKeywordID() != tok::objc_not_keyword) { |
| CXTok.int_data[0] = CXToken_Keyword; |
| } |
| else { |
| CXTok.int_data[0] = II->getTokenID() == tok::identifier? |
| CXToken_Identifier |
| : CXToken_Keyword; |
| } |
| CXTok.ptr_data = II; |
| } else if (Tok.is(tok::comment)) { |
| CXTok.int_data[0] = CXToken_Comment; |
| CXTok.ptr_data = 0; |
| } else { |
| CXTok.int_data[0] = CXToken_Punctuation; |
| CXTok.ptr_data = 0; |
| } |
| CXTokens.push_back(CXTok); |
| } while (Lex.getBufferLocation() <= EffectiveBufferEnd); |
| |
| if (CXTokens.empty()) |
| return; |
| |
| *Tokens = (CXToken *)malloc(sizeof(CXToken) * CXTokens.size()); |
| memmove(*Tokens, CXTokens.data(), sizeof(CXToken) * CXTokens.size()); |
| *NumTokens = CXTokens.size(); |
| } |
| |
| void clang_disposeTokens(CXTranslationUnit TU, |
| CXToken *Tokens, unsigned NumTokens) { |
| free(Tokens); |
| } |
| |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // Token annotation APIs. |
| //===----------------------------------------------------------------------===// |
| |
| typedef llvm::DenseMap<unsigned, CXCursor> AnnotateTokensData; |
| static enum CXChildVisitResult AnnotateTokensVisitor(CXCursor cursor, |
| CXCursor parent, |
| CXClientData client_data); |
| namespace { |
| class AnnotateTokensWorker { |
| AnnotateTokensData &Annotated; |
| CXToken *Tokens; |
| CXCursor *Cursors; |
| unsigned NumTokens; |
| unsigned TokIdx; |
| CursorVisitor AnnotateVis; |
| SourceManager &SrcMgr; |
| |
| bool MoreTokens() const { return TokIdx < NumTokens; } |
| unsigned NextToken() const { return TokIdx; } |
| void AdvanceToken() { ++TokIdx; } |
| SourceLocation GetTokenLoc(unsigned tokI) { |
| return SourceLocation::getFromRawEncoding(Tokens[tokI].int_data[1]); |
| } |
| |
| public: |
| AnnotateTokensWorker(AnnotateTokensData &annotated, |
| CXToken *tokens, CXCursor *cursors, unsigned numTokens, |
| ASTUnit *CXXUnit, SourceRange RegionOfInterest) |
| : Annotated(annotated), Tokens(tokens), Cursors(cursors), |
| NumTokens(numTokens), TokIdx(0), |
| AnnotateVis(CXXUnit, AnnotateTokensVisitor, this, |
| Decl::MaxPCHLevel, RegionOfInterest), |
| SrcMgr(CXXUnit->getSourceManager()) {} |
| |
| void VisitChildren(CXCursor C) { AnnotateVis.VisitChildren(C); } |
| enum CXChildVisitResult Visit(CXCursor cursor, CXCursor parent); |
| void AnnotateTokens(CXCursor parent); |
| }; |
| } |
| |
| void AnnotateTokensWorker::AnnotateTokens(CXCursor parent) { |
| // Walk the AST within the region of interest, annotating tokens |
| // along the way. |
| VisitChildren(parent); |
| |
| for (unsigned I = 0 ; I < TokIdx ; ++I) { |
| AnnotateTokensData::iterator Pos = Annotated.find(Tokens[I].int_data[1]); |
| if (Pos != Annotated.end()) |
| Cursors[I] = Pos->second; |
| } |
| |
| // Finish up annotating any tokens left. |
| if (!MoreTokens()) |
| return; |
| |
| const CXCursor &C = clang_getNullCursor(); |
| for (unsigned I = TokIdx ; I < NumTokens ; ++I) { |
| AnnotateTokensData::iterator Pos = Annotated.find(Tokens[I].int_data[1]); |
| Cursors[I] = (Pos == Annotated.end()) ? C : Pos->second; |
| } |
| } |
| |
| enum CXChildVisitResult |
| AnnotateTokensWorker::Visit(CXCursor cursor, CXCursor parent) { |
| CXSourceLocation Loc = clang_getCursorLocation(cursor); |
| // We can always annotate a preprocessing directive/macro instantiation. |
| if (clang_isPreprocessing(cursor.kind)) { |
| Annotated[Loc.int_data] = cursor; |
| return CXChildVisit_Recurse; |
| } |
| |
| CXSourceRange cursorExtent = clang_getCursorExtent(cursor); |
| SourceRange cursorRange = cxloc::translateCXSourceRange(cursorExtent); |
| |
| if (cursorRange.isInvalid()) |
| return CXChildVisit_Continue; |
| |
| SourceLocation L = SourceLocation::getFromRawEncoding(Loc.int_data); |
| |
| // Adjust the annotated range based specific declarations. |
| const enum CXCursorKind cursorK = clang_getCursorKind(cursor); |
| if (cursorK >= CXCursor_FirstDecl && cursorK <= CXCursor_LastDecl) { |
| Decl *D = cxcursor::getCursorDecl(cursor); |
| // Don't visit synthesized ObjC methods, since they have no syntatic |
| // representation in the source. |
| if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { |
| if (MD->isSynthesized()) |
| return CXChildVisit_Continue; |
| } |
| if (const DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) { |
| if (TypeSourceInfo *TI = DD->getTypeSourceInfo()) { |
| TypeLoc TL = TI->getTypeLoc(); |
| SourceLocation TLoc = TL.getSourceRange().getBegin(); |
| if (TLoc.isValid() && |
| SrcMgr.isBeforeInTranslationUnit(TLoc, L)) |
| cursorRange.setBegin(TLoc); |
| } |
| } |
| } |
| |
| const enum CXCursorKind K = clang_getCursorKind(parent); |
| const CXCursor updateC = |
| (clang_isInvalid(K) || K == CXCursor_TranslationUnit || |
| L.isMacroID()) |
| ? clang_getNullCursor() : parent; |
| |
| while (MoreTokens()) { |
| const unsigned I = NextToken(); |
| SourceLocation TokLoc = GetTokenLoc(I); |
| switch (LocationCompare(SrcMgr, TokLoc, cursorRange)) { |
| case RangeBefore: |
| Cursors[I] = updateC; |
| AdvanceToken(); |
| continue; |
| case RangeAfter: |
| return CXChildVisit_Continue; |
| case RangeOverlap: |
| break; |
| } |
| break; |
| } |
| |
| // Visit children to get their cursor information. |
| const unsigned BeforeChildren = NextToken(); |
| VisitChildren(cursor); |
| const unsigned AfterChildren = NextToken(); |
| |
| // Adjust 'Last' to the last token within the extent of the cursor. |
| while (MoreTokens()) { |
| const unsigned I = NextToken(); |
| SourceLocation TokLoc = GetTokenLoc(I); |
| switch (LocationCompare(SrcMgr, TokLoc, cursorRange)) { |
| case RangeBefore: |
| assert(0 && "Infeasible"); |
| case RangeAfter: |
| break; |
| case RangeOverlap: |
| Cursors[I] = updateC; |
| AdvanceToken(); |
| continue; |
| } |
| break; |
| } |
| const unsigned Last = NextToken(); |
| |
| // Scan the tokens that are at the beginning of the cursor, but are not |
| // capture by the child cursors. |
| |
| // For AST elements within macros, rely on a post-annotate pass to |
| // to correctly annotate the tokens with cursors. Otherwise we can |
| // get confusing results of having tokens that map to cursors that really |
| // are expanded by an instantiation. |
| if (L.isMacroID()) |
| cursor = clang_getNullCursor(); |
| |
| for (unsigned I = BeforeChildren; I != AfterChildren; ++I) { |
| if (!clang_isInvalid(clang_getCursorKind(Cursors[I]))) |
| break; |
| Cursors[I] = cursor; |
| } |
| // Scan the tokens that are at the end of the cursor, but are not captured |
| // but the child cursors. |
| for (unsigned I = AfterChildren; I != Last; ++I) |
| Cursors[I] = cursor; |
| |
| TokIdx = Last; |
| return CXChildVisit_Continue; |
| } |
| |
| static enum CXChildVisitResult AnnotateTokensVisitor(CXCursor cursor, |
| CXCursor parent, |
| CXClientData client_data) { |
| return static_cast<AnnotateTokensWorker*>(client_data)->Visit(cursor, parent); |
| } |
| |
| extern "C" { |
| |
| void clang_annotateTokens(CXTranslationUnit TU, |
| CXToken *Tokens, unsigned NumTokens, |
| CXCursor *Cursors) { |
| |
| if (NumTokens == 0 || !Tokens || !Cursors) |
| return; |
| |
| ASTUnit *CXXUnit = static_cast<ASTUnit *>(TU); |
| if (!CXXUnit) { |
| // Any token we don't specifically annotate will have a NULL cursor. |
| const CXCursor &C = clang_getNullCursor(); |
| for (unsigned I = 0; I != NumTokens; ++I) |
| Cursors[I] = C; |
| return; |
| } |
| |
| ASTUnit::ConcurrencyCheck Check(*CXXUnit); |
| |
| // Determine the region of interest, which contains all of the tokens. |
| SourceRange RegionOfInterest; |
| RegionOfInterest.setBegin(cxloc::translateSourceLocation( |
| clang_getTokenLocation(TU, Tokens[0]))); |
| |
| SourceLocation End |
| = cxloc::translateSourceLocation(clang_getTokenLocation(TU, |
| Tokens[NumTokens - 1])); |
| RegionOfInterest.setEnd(CXXUnit->getPreprocessor().getLocForEndOfToken(End)); |
| |
| // A mapping from the source locations found when re-lexing or traversing the |
| // region of interest to the corresponding cursors. |
| AnnotateTokensData Annotated; |
| |
| // Relex the tokens within the source range to look for preprocessing |
| // directives. |
| SourceManager &SourceMgr = CXXUnit->getSourceManager(); |
| std::pair<FileID, unsigned> BeginLocInfo |
| = SourceMgr.getDecomposedLoc(RegionOfInterest.getBegin()); |
| std::pair<FileID, unsigned> EndLocInfo |
| = SourceMgr.getDecomposedLoc(RegionOfInterest.getEnd()); |
| |
| llvm::StringRef Buffer; |
| bool Invalid = false; |
| if (BeginLocInfo.first == EndLocInfo.first && |
| ((Buffer = SourceMgr.getBufferData(BeginLocInfo.first, &Invalid)),true) && |
| !Invalid) { |
| Lexer Lex(SourceMgr.getLocForStartOfFile(BeginLocInfo.first), |
| CXXUnit->getASTContext().getLangOptions(), |
| Buffer.begin(), Buffer.data() + BeginLocInfo.second, |
| Buffer.end()); |
| Lex.SetCommentRetentionState(true); |
| |
| // Lex tokens in raw mode until we hit the end of the range, to avoid |
| // entering #includes or expanding macros. |
| while (true) { |
| Token Tok; |
| Lex.LexFromRawLexer(Tok); |
| |
| reprocess: |
| if (Tok.is(tok::hash) && Tok.isAtStartOfLine()) { |
| // We have found a preprocessing directive. Gobble it up so that we |
| // don't see it while preprocessing these tokens later, but keep track of |
| // all of the token locations inside this preprocessing directive so that |
| // we can annotate them appropriately. |
| // |
| // FIXME: Some simple tests here could identify macro definitions and |
| // #undefs, to provide specific cursor kinds for those. |
| std::vector<SourceLocation> Locations; |
| do { |
| Locations.push_back(Tok.getLocation()); |
| Lex.LexFromRawLexer(Tok); |
| } while (!Tok.isAtStartOfLine() && !Tok.is(tok::eof)); |
| |
| using namespace cxcursor; |
| CXCursor Cursor |
| = MakePreprocessingDirectiveCursor(SourceRange(Locations.front(), |
| Locations.back()), |
| CXXUnit); |
| for (unsigned I = 0, N = Locations.size(); I != N; ++I) { |
| Annotated[Locations[I].getRawEncoding()] = Cursor; |
| } |
| |
| if (Tok.isAtStartOfLine()) |
| goto reprocess; |
| |
| continue; |
| } |
| |
| if (Tok.is(tok::eof)) |
| break; |
| } |
| } |
| |
| // Annotate all of the source locations in the region of interest that map to |
| // a specific cursor. |
| AnnotateTokensWorker W(Annotated, Tokens, Cursors, NumTokens, |
| CXXUnit, RegionOfInterest); |
| W.AnnotateTokens(clang_getTranslationUnitCursor(CXXUnit)); |
| } |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // Operations for querying linkage of a cursor. |
| //===----------------------------------------------------------------------===// |
| |
| extern "C" { |
| CXLinkageKind clang_getCursorLinkage(CXCursor cursor) { |
| if (!clang_isDeclaration(cursor.kind)) |
| return CXLinkage_Invalid; |
| |
| Decl *D = cxcursor::getCursorDecl(cursor); |
| if (NamedDecl *ND = dyn_cast_or_null<NamedDecl>(D)) |
| switch (ND->getLinkage()) { |
| case NoLinkage: return CXLinkage_NoLinkage; |
| case InternalLinkage: return CXLinkage_Internal; |
| case UniqueExternalLinkage: return CXLinkage_UniqueExternal; |
| case ExternalLinkage: return CXLinkage_External; |
| }; |
| |
| return CXLinkage_Invalid; |
| } |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // Operations for querying language of a cursor. |
| //===----------------------------------------------------------------------===// |
| |
| static CXLanguageKind getDeclLanguage(const Decl *D) { |
| switch (D->getKind()) { |
| default: |
| break; |
| case Decl::ImplicitParam: |
| case Decl::ObjCAtDefsField: |
| case Decl::ObjCCategory: |
| case Decl::ObjCCategoryImpl: |
| case Decl::ObjCClass: |
| case Decl::ObjCCompatibleAlias: |
| case Decl::ObjCForwardProtocol: |
| case Decl::ObjCImplementation: |
| case Decl::ObjCInterface: |
| case Decl::ObjCIvar: |
| case Decl::ObjCMethod: |
| case Decl::ObjCProperty: |
| case Decl::ObjCPropertyImpl: |
| case Decl::ObjCProtocol: |
| return CXLanguage_ObjC; |
| case Decl::CXXConstructor: |
| case Decl::CXXConversion: |
| case Decl::CXXDestructor: |
| case Decl::CXXMethod: |
| case Decl::CXXRecord: |
| case Decl::ClassTemplate: |
| case Decl::ClassTemplatePartialSpecialization: |
| case Decl::ClassTemplateSpecialization: |
| case Decl::Friend: |
| case Decl::FriendTemplate: |
| case Decl::FunctionTemplate: |
| case Decl::LinkageSpec: |
| case Decl::Namespace: |
| case Decl::NamespaceAlias: |
| case Decl::NonTypeTemplateParm: |
| case Decl::StaticAssert: |
| case Decl::TemplateTemplateParm: |
| case Decl::TemplateTypeParm: |
| case Decl::UnresolvedUsingTypename: |
| case Decl::UnresolvedUsingValue: |
| case Decl::Using: |
| case Decl::UsingDirective: |
| case Decl::UsingShadow: |
| return CXLanguage_CPlusPlus; |
| } |
| |
| return CXLanguage_C; |
| } |
| |
| extern "C" { |
| CXLanguageKind clang_getCursorLanguage(CXCursor cursor) { |
| if (clang_isDeclaration(cursor.kind)) |
| return getDeclLanguage(cxcursor::getCursorDecl(cursor)); |
| |
| return CXLanguage_Invalid; |
| } |
| } // end: extern "C" |
| |
| |
| //===----------------------------------------------------------------------===// |
| // C++ AST instrospection. |
| //===----------------------------------------------------------------------===// |
| |
| extern "C" { |
| unsigned clang_CXXMethod_isStatic(CXCursor C) { |
| if (!clang_isDeclaration(C.kind)) |
| return 0; |
| CXXMethodDecl *D = dyn_cast<CXXMethodDecl>(cxcursor::getCursorDecl(C)); |
| return (D && D->isStatic()) ? 1 : 0; |
| } |
| |
| } // end: extern "C" |
| |
| //===----------------------------------------------------------------------===// |
| // CXString Operations. |
| //===----------------------------------------------------------------------===// |
| |
| extern "C" { |
| const char *clang_getCString(CXString string) { |
| return string.Spelling; |
| } |
| |
| void clang_disposeString(CXString string) { |
| if (string.MustFreeString && string.Spelling) |
| free((void*)string.Spelling); |
| } |
| |
| } // end: extern "C" |
| |
| namespace clang { namespace cxstring { |
| CXString createCXString(const char *String, bool DupString){ |
| CXString Str; |
| if (DupString) { |
| Str.Spelling = strdup(String); |
| Str.MustFreeString = 1; |
| } else { |
| Str.Spelling = String; |
| Str.MustFreeString = 0; |
| } |
| return Str; |
| } |
| |
| CXString createCXString(llvm::StringRef String, bool DupString) { |
| CXString Result; |
| if (DupString || (!String.empty() && String.data()[String.size()] != 0)) { |
| char *Spelling = (char *)malloc(String.size() + 1); |
| memmove(Spelling, String.data(), String.size()); |
| Spelling[String.size()] = 0; |
| Result.Spelling = Spelling; |
| Result.MustFreeString = 1; |
| } else { |
| Result.Spelling = String.data(); |
| Result.MustFreeString = 0; |
| } |
| return Result; |
| } |
| }} |
| |
| //===----------------------------------------------------------------------===// |
| // Misc. utility functions. |
| //===----------------------------------------------------------------------===// |
| |
| extern "C" { |
| |
| CXString clang_getClangVersion() { |
| return createCXString(getClangFullVersion()); |
| } |
| |
| } // end: extern "C" |