private object GetOptionNumber <TEnum>(TEnum option)
where TEnum : struct
{
var underlyingType = _enum.GetUnderlyingType(option.GetType());
return(Convert.ChangeType(option, underlyingType));
}
public void HandleGetSize(TypeHandlingContext context)
{
IEnum enumType = context.Type.GetEnumType();
if (enumType == null)
{
throw new NotSupportedException();
}
IType baseType = enumType.GetUnderlyingType();
context.Builder.AppendFormat("{1} += sizeof({0});", baseType.GetPresentableName(context.PresentationLanguage), context.GetSizeVariableName());
}
public static EnumContractInfo TryCreate([CanBeNull] IEnum enumType)
{
if (enumType != null && enumType.HasAttributeInstance(PredefinedType.FLAGS_ATTRIBUTE_CLASS, false))
{
var numericTypeInfo = CSharpNumericTypeInfo.TryCreate(enumType.GetUnderlyingType());
if (numericTypeInfo != null)
{
Debug.Assert(enumType.EnumMembers != null);
return(numericTypeInfo.TryCreateEnumFlags(enumType.EnumMembers));
}
}
return(null);
}
public static EnumContractInfo TryCreate(IEnum enumType)
{
if (enumType != null && enumType.HasAttributeInstance(PredefinedType.FLAGS_ATTRIBUTE_CLASS, false))
{
var numericTypeInfo = CSharpNumericTypeInfo.TryCreate(enumType.GetUnderlyingType());
if (numericTypeInfo != null)
{
Debug.Assert(enumType.EnumMembers != null);
return numericTypeInfo.TryCreateEnumFlags(enumType.EnumMembers);
}
}
return null;
}
public void HandleWrite(TypeHandlingContext context)
{
IEnum enumType = context.Type.GetEnumType();
if (enumType == null)
{
throw new NotSupportedException();
}
IType baseType = enumType.GetUnderlyingType();
IEnumBaseTypeHandler handler =
TypeHandlers.EnumBaseTypeHandlers.SingleOrDefault(h => h.CanHandle(context.WithType(baseType)));
if (handler == null)
{
throw new NotImplementedException();
}
handler.HandleEnumWrite(context.TypeOwner, context.Builder, context.Args);
}