632 lines
16 KiB
C++
632 lines
16 KiB
C++
//===- CXTypes.cpp - Implements 'CXTypes' aspect of libclang ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===--------------------------------------------------------------------===//
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//
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// This file implements the 'CXTypes' API hooks in the Clang-C library.
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//
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//===--------------------------------------------------------------------===//
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#include "CIndexer.h"
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#include "CXTranslationUnit.h"
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#include "CXCursor.h"
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#include "CXString.h"
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#include "CXType.h"
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#include "clang/AST/Expr.h"
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#include "clang/AST/Type.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/DeclObjC.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/Frontend/ASTUnit.h"
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using namespace clang;
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static CXTypeKind GetBuiltinTypeKind(const BuiltinType *BT) {
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#define BTCASE(K) case BuiltinType::K: return CXType_##K
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switch (BT->getKind()) {
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BTCASE(Void);
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BTCASE(Bool);
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BTCASE(Char_U);
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BTCASE(UChar);
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BTCASE(Char16);
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BTCASE(Char32);
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BTCASE(UShort);
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BTCASE(UInt);
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BTCASE(ULong);
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BTCASE(ULongLong);
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BTCASE(UInt128);
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BTCASE(Char_S);
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BTCASE(SChar);
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case BuiltinType::WChar_S: return CXType_WChar;
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case BuiltinType::WChar_U: return CXType_WChar;
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BTCASE(Short);
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BTCASE(Int);
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BTCASE(Long);
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BTCASE(LongLong);
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BTCASE(Int128);
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BTCASE(Float);
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BTCASE(Double);
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BTCASE(LongDouble);
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BTCASE(NullPtr);
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BTCASE(Overload);
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BTCASE(Dependent);
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BTCASE(ObjCId);
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BTCASE(ObjCClass);
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BTCASE(ObjCSel);
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default:
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return CXType_Unexposed;
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}
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#undef BTCASE
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}
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static CXTypeKind GetTypeKind(QualType T) {
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const Type *TP = T.getTypePtrOrNull();
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if (!TP)
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return CXType_Invalid;
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#define TKCASE(K) case Type::K: return CXType_##K
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switch (TP->getTypeClass()) {
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case Type::Builtin:
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return GetBuiltinTypeKind(cast<BuiltinType>(TP));
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TKCASE(Complex);
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TKCASE(Pointer);
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TKCASE(BlockPointer);
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TKCASE(LValueReference);
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TKCASE(RValueReference);
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TKCASE(Record);
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TKCASE(Enum);
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TKCASE(Typedef);
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TKCASE(ObjCInterface);
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TKCASE(ObjCObjectPointer);
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TKCASE(FunctionNoProto);
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TKCASE(FunctionProto);
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TKCASE(ConstantArray);
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TKCASE(Vector);
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default:
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return CXType_Unexposed;
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}
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#undef TKCASE
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}
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CXType cxtype::MakeCXType(QualType T, CXTranslationUnit TU) {
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CXTypeKind TK = GetTypeKind(T);
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CXType CT = { TK, { TK == CXType_Invalid ? 0 : T.getAsOpaquePtr(), TU }};
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return CT;
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}
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using cxtype::MakeCXType;
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static inline QualType GetQualType(CXType CT) {
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return QualType::getFromOpaquePtr(CT.data[0]);
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}
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static inline CXTranslationUnit GetTU(CXType CT) {
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return static_cast<CXTranslationUnit>(CT.data[1]);
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}
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extern "C" {
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CXType clang_getCursorType(CXCursor C) {
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using namespace cxcursor;
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CXTranslationUnit TU = cxcursor::getCursorTU(C);
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ASTContext &Context = static_cast<ASTUnit *>(TU->TUData)->getASTContext();
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if (clang_isExpression(C.kind)) {
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QualType T = cxcursor::getCursorExpr(C)->getType();
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return MakeCXType(T, TU);
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}
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if (clang_isDeclaration(C.kind)) {
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Decl *D = cxcursor::getCursorDecl(C);
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if (!D)
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return MakeCXType(QualType(), TU);
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if (TypeDecl *TD = dyn_cast<TypeDecl>(D))
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return MakeCXType(Context.getTypeDeclType(TD), TU);
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if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D))
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return MakeCXType(Context.getObjCInterfaceType(ID), TU);
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if (ValueDecl *VD = dyn_cast<ValueDecl>(D))
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return MakeCXType(VD->getType(), TU);
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if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D))
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return MakeCXType(PD->getType(), TU);
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if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
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return MakeCXType(FD->getType(), TU);
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return MakeCXType(QualType(), TU);
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}
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if (clang_isReference(C.kind)) {
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switch (C.kind) {
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case CXCursor_ObjCSuperClassRef: {
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QualType T
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= Context.getObjCInterfaceType(getCursorObjCSuperClassRef(C).first);
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return MakeCXType(T, TU);
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}
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case CXCursor_ObjCClassRef: {
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QualType T = Context.getObjCInterfaceType(getCursorObjCClassRef(C).first);
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return MakeCXType(T, TU);
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}
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case CXCursor_TypeRef: {
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QualType T = Context.getTypeDeclType(getCursorTypeRef(C).first);
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return MakeCXType(T, TU);
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}
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case CXCursor_CXXBaseSpecifier:
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return cxtype::MakeCXType(getCursorCXXBaseSpecifier(C)->getType(), TU);
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case CXCursor_MemberRef:
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return cxtype::MakeCXType(getCursorMemberRef(C).first->getType(), TU);
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case CXCursor_VariableRef:
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return cxtype::MakeCXType(getCursorVariableRef(C).first->getType(), TU);
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case CXCursor_ObjCProtocolRef:
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case CXCursor_TemplateRef:
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case CXCursor_NamespaceRef:
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case CXCursor_OverloadedDeclRef:
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default:
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break;
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}
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return MakeCXType(QualType(), TU);
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}
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return MakeCXType(QualType(), TU);
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}
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CXType clang_getTypedefDeclUnderlyingType(CXCursor C) {
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using namespace cxcursor;
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CXTranslationUnit TU = cxcursor::getCursorTU(C);
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if (clang_isDeclaration(C.kind)) {
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Decl *D = cxcursor::getCursorDecl(C);
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if (TypedefNameDecl *TD = dyn_cast_or_null<TypedefNameDecl>(D)) {
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QualType T = TD->getUnderlyingType();
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return MakeCXType(T, TU);
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}
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return MakeCXType(QualType(), TU);
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}
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return MakeCXType(QualType(), TU);
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}
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CXType clang_getEnumDeclIntegerType(CXCursor C) {
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using namespace cxcursor;
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CXTranslationUnit TU = cxcursor::getCursorTU(C);
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if (clang_isDeclaration(C.kind)) {
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Decl *D = cxcursor::getCursorDecl(C);
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if (EnumDecl *TD = dyn_cast_or_null<EnumDecl>(D)) {
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QualType T = TD->getIntegerType();
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return MakeCXType(T, TU);
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}
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return MakeCXType(QualType(), TU);
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}
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return MakeCXType(QualType(), TU);
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}
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long long clang_getEnumConstantDeclValue(CXCursor C) {
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using namespace cxcursor;
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if (clang_isDeclaration(C.kind)) {
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Decl *D = cxcursor::getCursorDecl(C);
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if (EnumConstantDecl *TD = dyn_cast_or_null<EnumConstantDecl>(D)) {
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return TD->getInitVal().getSExtValue();
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}
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return LLONG_MIN;
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}
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return LLONG_MIN;
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}
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unsigned long long clang_getEnumConstantDeclUnsignedValue(CXCursor C) {
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using namespace cxcursor;
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if (clang_isDeclaration(C.kind)) {
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Decl *D = cxcursor::getCursorDecl(C);
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if (EnumConstantDecl *TD = dyn_cast_or_null<EnumConstantDecl>(D)) {
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return TD->getInitVal().getZExtValue();
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}
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return ULLONG_MAX;
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}
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return ULLONG_MAX;
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}
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CXType clang_getCanonicalType(CXType CT) {
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if (CT.kind == CXType_Invalid)
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return CT;
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QualType T = GetQualType(CT);
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CXTranslationUnit TU = GetTU(CT);
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if (T.isNull())
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return MakeCXType(QualType(), GetTU(CT));
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ASTUnit *AU = static_cast<ASTUnit*>(TU->TUData);
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return MakeCXType(AU->getASTContext().getCanonicalType(T), TU);
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}
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unsigned clang_isConstQualifiedType(CXType CT) {
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QualType T = GetQualType(CT);
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return T.isLocalConstQualified();
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}
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unsigned clang_isVolatileQualifiedType(CXType CT) {
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QualType T = GetQualType(CT);
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return T.isLocalVolatileQualified();
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}
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unsigned clang_isRestrictQualifiedType(CXType CT) {
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QualType T = GetQualType(CT);
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return T.isLocalRestrictQualified();
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}
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CXType clang_getPointeeType(CXType CT) {
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QualType T = GetQualType(CT);
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const Type *TP = T.getTypePtrOrNull();
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if (!TP)
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return MakeCXType(QualType(), GetTU(CT));
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switch (TP->getTypeClass()) {
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case Type::Pointer:
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T = cast<PointerType>(TP)->getPointeeType();
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break;
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case Type::BlockPointer:
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T = cast<BlockPointerType>(TP)->getPointeeType();
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break;
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case Type::LValueReference:
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case Type::RValueReference:
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T = cast<ReferenceType>(TP)->getPointeeType();
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break;
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case Type::ObjCObjectPointer:
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T = cast<ObjCObjectPointerType>(TP)->getPointeeType();
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break;
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default:
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T = QualType();
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break;
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}
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return MakeCXType(T, GetTU(CT));
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}
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CXCursor clang_getTypeDeclaration(CXType CT) {
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if (CT.kind == CXType_Invalid)
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return cxcursor::MakeCXCursorInvalid(CXCursor_NoDeclFound);
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QualType T = GetQualType(CT);
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const Type *TP = T.getTypePtrOrNull();
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if (!TP)
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return cxcursor::MakeCXCursorInvalid(CXCursor_NoDeclFound);
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Decl *D = 0;
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try_again:
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switch (TP->getTypeClass()) {
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case Type::Typedef:
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D = cast<TypedefType>(TP)->getDecl();
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break;
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case Type::ObjCObject:
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D = cast<ObjCObjectType>(TP)->getInterface();
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break;
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case Type::ObjCInterface:
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D = cast<ObjCInterfaceType>(TP)->getDecl();
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break;
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case Type::Record:
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case Type::Enum:
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D = cast<TagType>(TP)->getDecl();
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break;
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case Type::TemplateSpecialization:
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if (const RecordType *Record = TP->getAs<RecordType>())
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D = Record->getDecl();
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else
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D = cast<TemplateSpecializationType>(TP)->getTemplateName()
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.getAsTemplateDecl();
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break;
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case Type::InjectedClassName:
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D = cast<InjectedClassNameType>(TP)->getDecl();
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break;
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// FIXME: Template type parameters!
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case Type::Elaborated:
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TP = cast<ElaboratedType>(TP)->getNamedType().getTypePtrOrNull();
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goto try_again;
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default:
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break;
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}
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if (!D)
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return cxcursor::MakeCXCursorInvalid(CXCursor_NoDeclFound);
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return cxcursor::MakeCXCursor(D, GetTU(CT));
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}
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CXString clang_getTypeKindSpelling(enum CXTypeKind K) {
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const char *s = 0;
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#define TKIND(X) case CXType_##X: s = "" #X ""; break
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switch (K) {
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TKIND(Invalid);
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TKIND(Unexposed);
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TKIND(Void);
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TKIND(Bool);
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TKIND(Char_U);
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TKIND(UChar);
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TKIND(Char16);
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TKIND(Char32);
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TKIND(UShort);
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TKIND(UInt);
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TKIND(ULong);
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TKIND(ULongLong);
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TKIND(UInt128);
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TKIND(Char_S);
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TKIND(SChar);
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case CXType_WChar: s = "WChar"; break;
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TKIND(Short);
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TKIND(Int);
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TKIND(Long);
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TKIND(LongLong);
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TKIND(Int128);
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TKIND(Float);
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TKIND(Double);
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TKIND(LongDouble);
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TKIND(NullPtr);
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TKIND(Overload);
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TKIND(Dependent);
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TKIND(ObjCId);
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TKIND(ObjCClass);
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TKIND(ObjCSel);
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TKIND(Complex);
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TKIND(Pointer);
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TKIND(BlockPointer);
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TKIND(LValueReference);
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TKIND(RValueReference);
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TKIND(Record);
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TKIND(Enum);
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TKIND(Typedef);
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TKIND(ObjCInterface);
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TKIND(ObjCObjectPointer);
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TKIND(FunctionNoProto);
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TKIND(FunctionProto);
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TKIND(ConstantArray);
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TKIND(Vector);
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}
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#undef TKIND
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return cxstring::createCXString(s);
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}
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unsigned clang_equalTypes(CXType A, CXType B) {
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return A.data[0] == B.data[0] && A.data[1] == B.data[1];;
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}
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unsigned clang_isFunctionTypeVariadic(CXType X) {
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QualType T = GetQualType(X);
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if (T.isNull())
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return 0;
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if (const FunctionProtoType *FD = T->getAs<FunctionProtoType>())
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return (unsigned)FD->isVariadic();
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if (T->getAs<FunctionNoProtoType>())
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return 1;
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return 0;
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}
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CXCallingConv clang_getFunctionTypeCallingConv(CXType X) {
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QualType T = GetQualType(X);
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if (T.isNull())
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return CXCallingConv_Invalid;
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if (const FunctionType *FD = T->getAs<FunctionType>()) {
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#define TCALLINGCONV(X) case CC_##X: return CXCallingConv_##X
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switch (FD->getCallConv()) {
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TCALLINGCONV(Default);
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TCALLINGCONV(C);
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TCALLINGCONV(X86StdCall);
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TCALLINGCONV(X86FastCall);
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TCALLINGCONV(X86ThisCall);
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TCALLINGCONV(X86Pascal);
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TCALLINGCONV(AAPCS);
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TCALLINGCONV(AAPCS_VFP);
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}
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#undef TCALLINGCONV
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}
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return CXCallingConv_Invalid;
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}
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int clang_getNumArgTypes(CXType X) {
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QualType T = GetQualType(X);
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if (T.isNull())
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return -1;
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if (const FunctionProtoType *FD = T->getAs<FunctionProtoType>()) {
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return FD->getNumArgs();
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}
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if (T->getAs<FunctionNoProtoType>()) {
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return 0;
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}
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return -1;
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}
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CXType clang_getArgType(CXType X, unsigned i) {
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QualType T = GetQualType(X);
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if (T.isNull())
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return MakeCXType(QualType(), GetTU(X));
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if (const FunctionProtoType *FD = T->getAs<FunctionProtoType>()) {
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unsigned numArgs = FD->getNumArgs();
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if (i >= numArgs)
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return MakeCXType(QualType(), GetTU(X));
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return MakeCXType(FD->getArgType(i), GetTU(X));
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}
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return MakeCXType(QualType(), GetTU(X));
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}
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CXType clang_getResultType(CXType X) {
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QualType T = GetQualType(X);
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if (T.isNull())
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return MakeCXType(QualType(), GetTU(X));
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if (const FunctionType *FD = T->getAs<FunctionType>())
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return MakeCXType(FD->getResultType(), GetTU(X));
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return MakeCXType(QualType(), GetTU(X));
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}
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CXType clang_getCursorResultType(CXCursor C) {
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if (clang_isDeclaration(C.kind)) {
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Decl *D = cxcursor::getCursorDecl(C);
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if (const ObjCMethodDecl *MD = dyn_cast_or_null<ObjCMethodDecl>(D))
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return MakeCXType(MD->getResultType(), cxcursor::getCursorTU(C));
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return clang_getResultType(clang_getCursorType(C));
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}
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return MakeCXType(QualType(), cxcursor::getCursorTU(C));
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}
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unsigned clang_isPODType(CXType X) {
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QualType T = GetQualType(X);
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if (T.isNull())
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return 0;
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CXTranslationUnit TU = GetTU(X);
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ASTUnit *AU = static_cast<ASTUnit*>(TU->TUData);
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return T.isPODType(AU->getASTContext()) ? 1 : 0;
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}
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CXType clang_getElementType(CXType CT) {
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QualType ET = QualType();
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QualType T = GetQualType(CT);
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const Type *TP = T.getTypePtrOrNull();
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if (TP) {
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switch (TP->getTypeClass()) {
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case Type::ConstantArray:
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ET = cast<ConstantArrayType> (TP)->getElementType();
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break;
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case Type::Vector:
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ET = cast<VectorType> (TP)->getElementType();
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break;
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case Type::Complex:
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ET = cast<ComplexType> (TP)->getElementType();
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break;
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default:
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break;
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}
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}
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return MakeCXType(ET, GetTU(CT));
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}
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|
|
long long clang_getNumElements(CXType CT) {
|
|
long long result = -1;
|
|
QualType T = GetQualType(CT);
|
|
const Type *TP = T.getTypePtrOrNull();
|
|
|
|
if (TP) {
|
|
switch (TP->getTypeClass()) {
|
|
case Type::ConstantArray:
|
|
result = cast<ConstantArrayType> (TP)->getSize().getSExtValue();
|
|
break;
|
|
case Type::Vector:
|
|
result = cast<VectorType> (TP)->getNumElements();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
CXType clang_getArrayElementType(CXType CT) {
|
|
QualType ET = QualType();
|
|
QualType T = GetQualType(CT);
|
|
const Type *TP = T.getTypePtrOrNull();
|
|
|
|
if (TP) {
|
|
switch (TP->getTypeClass()) {
|
|
case Type::ConstantArray:
|
|
ET = cast<ConstantArrayType> (TP)->getElementType();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return MakeCXType(ET, GetTU(CT));
|
|
}
|
|
|
|
long long clang_getArraySize(CXType CT) {
|
|
long long result = -1;
|
|
QualType T = GetQualType(CT);
|
|
const Type *TP = T.getTypePtrOrNull();
|
|
|
|
if (TP) {
|
|
switch (TP->getTypeClass()) {
|
|
case Type::ConstantArray:
|
|
result = cast<ConstantArrayType> (TP)->getSize().getSExtValue();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
CXString clang_getDeclObjCTypeEncoding(CXCursor C) {
|
|
if ((C.kind < CXCursor_FirstDecl) || (C.kind > CXCursor_LastDecl))
|
|
return cxstring::createCXString("");
|
|
|
|
Decl *D = static_cast<Decl*>(C.data[0]);
|
|
CXTranslationUnit TU = static_cast<CXTranslationUnit>(C.data[2]);
|
|
ASTUnit *AU = static_cast<ASTUnit*>(TU->TUData);
|
|
ASTContext &Ctx = AU->getASTContext();
|
|
std::string encoding;
|
|
|
|
if (ObjCMethodDecl *OMD = dyn_cast<ObjCMethodDecl>(D)) {
|
|
if (Ctx.getObjCEncodingForMethodDecl(OMD, encoding))
|
|
return cxstring::createCXString("?");
|
|
} else if (ObjCPropertyDecl *OPD = dyn_cast<ObjCPropertyDecl>(D))
|
|
Ctx.getObjCEncodingForPropertyDecl(OPD, NULL, encoding);
|
|
else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D))
|
|
Ctx.getObjCEncodingForFunctionDecl(FD, encoding);
|
|
else {
|
|
QualType Ty;
|
|
if (TypeDecl *TD = dyn_cast<TypeDecl>(D))
|
|
Ty = Ctx.getTypeDeclType(TD);
|
|
if (ValueDecl *VD = dyn_cast<ValueDecl>(D))
|
|
Ty = VD->getType();
|
|
else return cxstring::createCXString("?");
|
|
Ctx.getObjCEncodingForType(Ty, encoding);
|
|
}
|
|
|
|
return cxstring::createCXString(encoding);
|
|
}
|
|
|
|
} // end: extern "C"
|