public static Cursor Create(CXCursor handle, Cursor parent)
{
if (handle.IsDeclaration)
{
return(Decl.Create(handle, parent));
}
else if (handle.IsReference)
{
return(Ref.Create(handle, parent));
}
else if (handle.IsExpression)
{
return(Expr.Create(handle, parent));
}
else if (handle.IsStatement)
{
return(Stmt.Create(handle, parent));
}
else if (handle.IsAttribute)
{
return(Attr.Create(handle, parent));
}
switch (handle.Kind)
{
default:
{
Debug.WriteLine($"Unhandled cursor kind: {handle.KindSpelling}.");
Debugger.Break();
return(new Cursor(handle, parent));
}
}
}
private string GetParmModifier(Decl decl, Type type)
{
if (_config.GenerateUnsafeCode)
{
return(string.Empty);
}
switch (type.Kind)
{
case CXTypeKind.CXType_Void:
case CXTypeKind.CXType_UShort:
case CXTypeKind.CXType_UInt:
case CXTypeKind.CXType_ULong:
case CXTypeKind.CXType_ULongLong:
case CXTypeKind.CXType_Short:
case CXTypeKind.CXType_Int:
case CXTypeKind.CXType_Long:
case CXTypeKind.CXType_LongLong:
case CXTypeKind.CXType_Double:
case CXTypeKind.CXType_Enum:
case CXTypeKind.CXType_Typedef:
{
return(string.Empty);
}
case CXTypeKind.CXType_Pointer:
{
return(GetParmModifierForPointeeType(decl, type.PointeeType));
}
case CXTypeKind.CXType_ConstantArray:
case CXTypeKind.CXType_IncompleteArray:
{
return("out");
}
case CXTypeKind.CXType_Elaborated:
{
return(GetParmModifier(decl, type.CanonicalType));
}
default:
{
Unhandled(decl, type);
return(string.Empty);
}
}
}
private string GetMarshalAttributeForPointeeType(Decl decl, Type pointeeType)
{
Debug.Assert(!_config.GenerateUnsafeCode);
switch (pointeeType.Kind)
{
case CXTypeKind.CXType_Void:
case CXTypeKind.CXType_UShort:
case CXTypeKind.CXType_UInt:
case CXTypeKind.CXType_ULong:
case CXTypeKind.CXType_ULongLong:
case CXTypeKind.CXType_Short:
case CXTypeKind.CXType_Int:
case CXTypeKind.CXType_Long:
case CXTypeKind.CXType_LongLong:
case CXTypeKind.CXType_Double:
case CXTypeKind.CXType_Pointer:
case CXTypeKind.CXType_Record:
case CXTypeKind.CXType_Enum:
case CXTypeKind.CXType_Typedef:
case CXTypeKind.CXType_FunctionProto:
{
return(string.Empty);
}
case CXTypeKind.CXType_Char_S:
{
return("MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(StringMarshaler))");
}
case CXTypeKind.CXType_WChar:
{
return("MarshalAs(UnmanagedType.LPWStr)");
}
case CXTypeKind.CXType_Elaborated:
{
return(GetMarshalAttributeForPointeeType(decl, pointeeType.CanonicalType));
}
default:
{
Unhandled(decl, pointeeType);
return(string.Empty);
}
}
}
private string GetParmModifierForPointeeType(Decl decl, Type pointeeType)
{
Debug.Assert(!_config.GenerateUnsafeCode);
switch (pointeeType.Kind)
{
case CXTypeKind.CXType_Void:
case CXTypeKind.CXType_Char_S:
case CXTypeKind.CXType_WChar:
case CXTypeKind.CXType_FunctionProto:
{
return(string.Empty);
}
case CXTypeKind.CXType_UChar:
case CXTypeKind.CXType_UShort:
case CXTypeKind.CXType_UInt:
case CXTypeKind.CXType_ULong:
case CXTypeKind.CXType_ULongLong:
case CXTypeKind.CXType_Short:
case CXTypeKind.CXType_Int:
case CXTypeKind.CXType_Long:
case CXTypeKind.CXType_LongLong:
case CXTypeKind.CXType_Double:
case CXTypeKind.CXType_Record:
case CXTypeKind.CXType_Enum:
case CXTypeKind.CXType_Pointer:
{
return("out");
}
case CXTypeKind.CXType_Typedef:
case CXTypeKind.CXType_Elaborated:
{
return(GetParmModifierForPointeeType(decl, pointeeType.CanonicalType));
}
default:
{
Unhandled(decl, pointeeType);
return(string.Empty);
}
}
}
private string GetTypeNameForPointeeType(Decl decl, Type pointeeType)
{
switch (pointeeType.Kind)
{
case CXTypeKind.CXType_Void:
{
if (_config.GenerateUnsafeCode)
{
return("void*");
}
_outputBuilder.AddUsing("System");
return("IntPtr");
}
case CXTypeKind.CXType_FunctionProto:
{
_outputBuilder.AddUsing("System");
return("IntPtr");
}
case CXTypeKind.CXType_UShort:
case CXTypeKind.CXType_UInt:
case CXTypeKind.CXType_ULong:
case CXTypeKind.CXType_ULongLong:
case CXTypeKind.CXType_Short:
case CXTypeKind.CXType_Int:
case CXTypeKind.CXType_Long:
case CXTypeKind.CXType_LongLong:
case CXTypeKind.CXType_Pointer:
case CXTypeKind.CXType_Record:
case CXTypeKind.CXType_Enum:
case CXTypeKind.CXType_Typedef:
{
switch (decl.Kind)
{
case CXCursorKind.CXCursor_FieldDecl:
case CXCursorKind.CXCursor_FunctionDecl:
{
var name = "IntPtr";
if (_config.GenerateUnsafeCode)
{
name = GetTypeName(decl, pointeeType);
name += '*';
}
else
{
_outputBuilder.AddUsing("System");
}
return(name);
}
case CXCursorKind.CXCursor_ParmDecl:
{
var name = GetTypeName(decl, pointeeType);
if (_config.GenerateUnsafeCode)
{
name += '*';
}
return(name);
}
case CXCursorKind.CXCursor_TypedefDecl:
{
var typedefDecl = (TypedefDecl)decl;
var underlyingType = typedefDecl.UnderlyingType;
if ((underlyingType.Kind == CXTypeKind.CXType_Pointer) && (underlyingType.PointeeType.Kind == CXTypeKind.CXType_FunctionProto))
{
goto case CXCursorKind.CXCursor_FunctionDecl;
}
var name = GetCursorName(pointeeType.DeclarationCursor);
if (_config.GenerateUnsafeCode)
{
name += '*';
}
return(name);
}
default:
{
Unhandled(decl, pointeeType);
return(string.Empty);
}
}
}
case CXTypeKind.CXType_Char_S:
{
switch (decl.Kind)
{
case CXCursorKind.CXCursor_FieldDecl:
case CXCursorKind.CXCursor_FunctionDecl:
{
return(_config.GenerateUnsafeCode ? "byte*" : "string");
}
case CXCursorKind.CXCursor_ParmDecl:
{
if (GetParmModifier(decl, decl.Type).Equals("out"))
{
Debug.Assert(!_config.GenerateUnsafeCode);
_outputBuilder.AddUsing("System");
return("IntPtr");
}
return(_config.GenerateUnsafeCode ? "byte*" : "string");
}
case CXCursorKind.CXCursor_TypedefDecl:
{
return(_config.GenerateUnsafeCode ? "byte*" : "string");
}
default:
{
Unhandled(decl, pointeeType);
return(string.Empty);
}
}
}
case CXTypeKind.CXType_Elaborated:
{
return(GetTypeNameForPointeeType(decl, pointeeType.CanonicalType));
}
case CXTypeKind.CXType_Attributed:
{
return(GetTypeNameForPointeeType(decl, pointeeType.ModifierType));
}
default:
{
Unhandled(decl, pointeeType);
return(string.Empty);
}
}
}
private string GetTypeName(Decl decl, Type type)
{
switch (type.Kind)
{
case CXTypeKind.CXType_Void:
{
return("void");
}
case CXTypeKind.CXType_Bool:
{
return("bool");
}
case CXTypeKind.CXType_UChar:
{
return("byte");
}
case CXTypeKind.CXType_UShort:
{
return("ushort");
}
case CXTypeKind.CXType_UInt:
{
return("uint");
}
case CXTypeKind.CXType_ULong:
{
return("uint");
}
case CXTypeKind.CXType_ULongLong:
{
return("ulong");
}
case CXTypeKind.CXType_Char_S:
{
return("sbyte");
}
case CXTypeKind.CXType_WChar:
{
return("char");
}
case CXTypeKind.CXType_Short:
{
return("short");
}
case CXTypeKind.CXType_Int:
{
return("int");
}
case CXTypeKind.CXType_Long:
{
return("int");
}
case CXTypeKind.CXType_LongLong:
{
return("long");
}
case CXTypeKind.CXType_Float:
{
return("float");
}
case CXTypeKind.CXType_Double:
{
return("double");
}
case CXTypeKind.CXType_Pointer:
case CXTypeKind.CXType_LValueReference:
{
return(GetTypeNameForPointeeType(decl, type.PointeeType));
}
case CXTypeKind.CXType_Record:
case CXTypeKind.CXType_Enum:
case CXTypeKind.CXType_FunctionProto:
{
var name = type.Spelling;
Debug.Assert(!string.IsNullOrWhiteSpace(name));
return(name);
}
case CXTypeKind.CXType_Typedef:
{
return(GetCursorName(type.DeclarationCursor));
}
case CXTypeKind.CXType_Elaborated:
{
return(GetTypeName(decl, type.CanonicalType));
}
case CXTypeKind.CXType_ConstantArray:
case CXTypeKind.CXType_IncompleteArray:
{
return(GetTypeName(decl, type.ElementType));
}
default:
{
Unhandled(decl, type);
return(string.Empty);
}
}
}
private string GetCursorName(Decl decl)
{
switch (decl.Kind)
{
case CXCursorKind.CXCursor_StructDecl:
case CXCursorKind.CXCursor_UnionDecl:
case CXCursorKind.CXCursor_EnumDecl:
{
var name = decl.Spelling;
if (string.IsNullOrWhiteSpace(name))
{
if (decl.IsAnonymous)
{
decl.Location.GetFileLocation(out var file, out var _, out var _, out var offset);
var fileName = Path.GetFileNameWithoutExtension(file.Name.ToString());
name = $"__Anonymous{decl.Type.KindSpelling}_{fileName}_{offset}";
}
else
{
name = GetTypeName(decl, decl.Type);
}
}
Debug.Assert(!string.IsNullOrWhiteSpace(name));
return(name);
}
case CXCursorKind.CXCursor_FieldDecl:
case CXCursorKind.CXCursor_EnumConstantDecl:
case CXCursorKind.CXCursor_FunctionDecl:
{
var name = decl.Spelling;
Debug.Assert(!string.IsNullOrWhiteSpace(name));
return(name);
}
case CXCursorKind.CXCursor_ParmDecl:
{
var name = decl.Spelling;
if (string.IsNullOrWhiteSpace(name))
{
name = "param";
}
Debug.Assert(!string.IsNullOrWhiteSpace(name));
return(name);
}
case CXCursorKind.CXCursor_TypedefDecl:
{
switch (decl.Spelling)
{
case "int8_t":
{
return("sbyte");
}
case "int16_t":
{
return("short");
}
case "int32_t":
{
return("int");
}
case "int64_t":
{
return("long");
}
case "intptr_t":
{
_outputBuilder.AddUsing("System");
return("IntPtr");
}
case "size_t":
case "SIZE_T":
{
_outputBuilder.AddUsing("System");
return("IntPtr");
}
case "time_t":
{
return("long");
}
case "uint8_t":
{
return("byte");
}
case "uint16_t":
{
return("ushort");
}
case "uint32_t":
{
return("uint");
}
case "uint64_t":
{
return("ulong");
}
case "uintptr_t":
{
_outputBuilder.AddUsing("System");
return("UIntPtr");
}
default:
{
var typedefDecl = (TypedefDecl)decl;
return(GetCursorName(typedefDecl, typedefDecl.UnderlyingType));
}
}
}
default:
{
Unhandled(decl);
return(string.Empty);
}
}
}
