public bool DoVisit(CXCursor cursor, CXCursor parent)
{
CXType cxType = clang.getCursorType(cursor);
TypeVisitContext context = new TypeVisitContext(cursor);
NativeType type = TypeVisitorHelper.GetNativeType(AST_, cxType, context);
return(true);
}
public static NativeType GetNativeType(AST ast, CXType cxType, TypeVisitContext context = null)
{
CXType type = cxType;
if (ClangTraits.IsElaboratedType(type) || ClangTraits.IsUnexposedType(type))
{
type = clang.getCursorType(clang.getTypeDeclaration(type));
}
Debug.Assert(!ClangTraits.IsInvalid(type));
string typeName = clang.getTypeSpelling(type).ToString();
Debug.Assert(typeName.Length > 0);
NativeType nativeType = ast.GetType(typeName);
if (!nativeType.Parsed)
{
nativeType.Parsed = true;
// get cursor spelling as unscoped name
CXCursor declaration = clang.getTypeDeclaration(type);
nativeType.UnscopedName = clang.getCursorSpelling(declaration).ToString();
// not a type reference nor a type with qualifiers
if (ClangTraits.IsTypeEntity(type) || typeName == "std::nullptr_t")
{
ProcessTypeEntity(ast, nativeType, type, context);
}
// using or typedef
else if (ClangTraits.IsTypedef(type))
{
ProcessTypedef(ast, nativeType, type, context);
}
else if (ClangTraits.IsArray(type))
{
ProcessArray(ast, nativeType, type, context);
}
// reference and pointer
else if (ClangTraits.IsReference(type) || ClangTraits.IsPointer(type))
{
ProcessReferencePointer(ast, nativeType, type, context);
}
else if (ClangTraits.IsMemberPointer(type))
{
ProcessMemberPointer(ast, nativeType, cxType, context);
}
else
{
Debug.Assert(false);
}
}
return(nativeType);
}
private static void ProcessArray(AST ast, NativeType type, CXType cxType, TypeVisitContext context)
{
// set as array
CXType elementType = clang.getArrayElementType(cxType);
NativeArrayType arr = new NativeArrayType
{
Count = (int)clang.getArraySize(cxType),
Type = GetNativeType(ast, elementType, context)
};
type.SetArray(arr);
}
private static void ProcessTypedef(AST ast, NativeType type, CXType cxType, TypeVisitContext context)
{
// get type redirection
CXCursor typedefedCursor = clang.getTypeDeclaration(cxType);
CXCursor refCursor = clang.getCursorReferenced(typedefedCursor);
CXType typedefedType = clang.getTypedefDeclUnderlyingType(typedefedCursor);
NativeType typedefedNativeType = GetNativeType(ast, typedefedType, context);
type.SetTypedef(typedefedNativeType);
}
private static FunctionProto GetFunctionProto(AST ast, CXType funcType, TypeVisitContext context)
{
Debug.Assert(ClangTraits.IsFunction(funcType));
FunctionProto proto = new FunctionProto();
proto.ResultType = GetNativeType(ast, clang.getResultType(funcType), context);
uint arity = (uint)clang.getNumArgTypes(funcType);
for (uint loop = 0; loop < arity; ++loop)
{
CXType argType = clang.getArgType(funcType, loop);
FunctionParameter param = new FunctionParameter();
param.Type = GetNativeType(ast, argType, context);
proto.AddParameter(param);
}
return(proto);
}
private static void ProcessTypeEntity(
AST ast,
NativeType type,
CXType cxType,
TypeVisitContext context)
{
type.IsConst = ClangTraits.IsConst(cxType);
if (ClangTraits.IsBuiltInType(cxType))
{
type.SetBuiltin(ClangTraits.ToBasicType(cxType));
}
else
{
CXCursor cursor = clang.getTypeDeclaration(cxType);
CXType theType = clang.getCursorType(cursor);
string removeQualifierName = clang.getTypeSpelling(theType).ToString();
if (ClangTraits.IsEnum(cxType))
{
type.SetEnum(ast.GetEnum(removeQualifierName));
}
else if (ClangTraits.IsFunction(cxType))
{
type.SetFunction(GetFunctionProto(ast, cxType, context));
}
else if (ClangTraits.IsUserDefiendType(cxType))
{
NativeClass nativeClass = ast.GetClass(removeQualifierName);
// if native class is parsed already, the native class is a full specialization
// or the native class is a instantiation of a template or partial specialization
if (!nativeClass.IsClassEntity && !nativeClass.Parsed)
{
nativeClass.Parsed = true;
if (TemplateHelper.VisitTemplate(cursor, nativeClass, ast))
{
TemplateHelper.VisitTemplateParameter(cursor, theType, nativeClass, ast, context);
}
}
type.SetClass(nativeClass);
}
}
}
private void ProcessClassDetail(
NativeClass thisClass, // this class to parse
CXCursor cursor, // current cursor
CXType type, // current cursor type
CXCursor parent // parent cursor
)
{
// set unscoped name
thisClass.UnscopedName = clang.getCursorSpelling(cursor).ToString();
// set struct or class
thisClass.ClassTag = ClangTraits.ToStructOrClass(cursor.kind);
// abstract
thisClass.IsAbstract = clang.CXXRecord_isAbstract(cursor) != 0;
// virtual base
thisClass.IsVirtualBase = clang.isVirtualBase(cursor) != 0;
// set template instance info
if (TemplateHelper.VisitTemplate(cursor, thisClass, AST_))
{
thisClass.IsFullSpecialization = true;
TypeVisitContext context = new TypeVisitContext(cursor);
TemplateHelper.VisitTemplateParameter(cursor, type, thisClass, AST_, context);
}
// set subclass
if (ClangTraits.IsUserDefinedTypeDecl(parent))
{
Debug.Assert(OwnerClass_ != null);
thisClass.IsEmbedded = true;
thisClass.OwnerClass = OwnerClass_;
SubClass subClass = new SubClass
{
Access = ClangTraits.ToAccessSpecifier(clang.getCXXAccessSpecifier(cursor)),
Class = thisClass
};
OwnerClass_.AddSubClass(subClass);
}
}
private void ProcessTypeExport(NativeClass thisClass, CXCursor cursor, CXCursor parent)
{
// createfield context
TypeVisitContext context = new TypeVisitContext(cursor);
// get field type
CXType type = clang.getCursorType(cursor);
NativeType nativeType = TypeVisitorHelper.GetNativeType(AST_, type, context);
// get field access specifier
AccessSpecifier access = ClangTraits.ToAccessSpecifier(clang.getCXXAccessSpecifier(cursor));
// create the exported member type
MemberType memberType = new MemberType
{
Access = access,
Type = nativeType
};
thisClass.AddMemberType(memberType);
}
private void ProcessBaseClass(NativeClass thisClass, CXCursor cursor, CXCursor parent)
{
// get class name
CXType type = clang.getCursorType(cursor);
// type visit context
TypeVisitContext context = new TypeVisitContext(cursor);
// create the base class
BaseClass baseClass = new BaseClass
{
// check access specifier
Access = ClangTraits.ToAccessSpecifier(clang.getCXXAccessSpecifier(cursor)),
// native class type
Type = TypeVisitorHelper.GetNativeType(AST_, type, context),
// check is virtual base
IsVirtual = clang.isVirtualBase(cursor) != 0
};
// register base class
thisClass.AddBaseClass(baseClass);
}
public static bool VisitTemplateParameter(
CXCursor cursor,
CXType type,
NativeClass @class,
AST ast,
TypeVisitContext context)
{
ClassTemplate template = @class.OriginalTemplate;
Debug.Assert(template != null);
Debug.Assert(template.TP != null);
int templateArgNum = clang.Type_getNumTemplateArguments(type);
if (templateArgNum < 0)
{
return(false);
}
@class.SetTemplateParameterCount(templateArgNum);
int contextIndex = 0;
for (uint loop = 0; loop < templateArgNum; ++loop)
{
TemplateParameter param = template.TP.GetTemplateParameter(loop);
Debug.Assert(param != null);
if (param.Kind == TemplateParameterKind.Type)
{
CXType argType = clang.Type_getTemplateArgumentAsType(type, loop);
Debug.Assert(!ClangTraits.IsInvalid(argType));
NativeType nativeArgType = TypeVisitorHelper.GetNativeType(ast, argType, context);
@class.SetTemplateParameter(loop, nativeArgType);
}
else if (param.Kind == TemplateParameterKind.NoneType ||
param.Kind == TemplateParameterKind.Dependent)
{
string literal;
if (context != null && !context.Empty)
{
literal = context.Consume();
}
else
{
literal = (param.Extra as TemplateNonTypeParam).DefaultLiteral;
}
Debug.Assert(literal != null);
@class.SetTemplateParameter(loop, literal);
++contextIndex;
}
else
{
Debug.Assert(TemplateParameterKind.Template == param.Kind);
// not support now
ClassTemplate templateParam = null;
@class.SetTemplateParameter(loop, templateParam);
}
}
return(true);
}
private static void ProcessMemberPointer(AST ast, NativeType type, CXType cxType, TypeVisitContext context)
{
CXType classType = clang.Type_getClassType(cxType);
string className = clang.getTypeSpelling(classType).ToString();
NativeClass nativeClass = ast.GetClass(className);
CXType pointeeType = clang.getPointeeType(cxType);
if (ClangTraits.IsFunction(pointeeType))
{
type.SetPMF(new MemberFunctionPointer
{
Class = nativeClass,
Function = GetFunctionProto(ast, pointeeType, context)
});
}
else
{
type.SetPMD(new MemberDataPointer
{
Class = nativeClass,
Data = GetNativeType(ast, pointeeType, context)
});
}
}
private static void ProcessReferencePointer(AST ast, NativeType type, CXType cxType, TypeVisitContext context)
{
Debug.Assert(type.TypeKind == BasicType.Unknown);
type.IsConst = ClangTraits.IsConst(cxType);
CXType pointeeType = clang.getPointeeType(cxType);
NativeType nativeType = GetNativeType(ast, pointeeType, context);
if (ClangTraits.IsLValueReference(cxType))
{
type.SetTypeLValRef(nativeType);
}
else if (ClangTraits.IsRValueReference(cxType))
{
type.SetTypeRValRef(nativeType);
}
else if (ClangTraits.IsPointer(cxType))
{
type.SetPointer(nativeType);
}
Debug.Assert(type.TypeKind != BasicType.Unknown);
}