public static TAttr TryGetAttribute <TAttr>(TEnum value)
where TAttr : Attribute
{
EnumFieldInfo <TEnum> field = TryGetField(value);
return(field?.GetAttribute <TAttr>());
}
static EnumInfo()
{
Type = typeof(TEnum);
UnderlyingType = Enum.GetUnderlyingType(Type);
UnderlyingTypeSize = Marshal.SizeOf(UnderlyingType);
IsUInt64 = UnderlyingType == typeof(ulong);
if (!typeof(TEnum).IsEnum)
{
throw new ArgumentException($"{Type.Name} is not an enum!",
nameof(TEnum));
}
nameLookup = new Dictionary <string, EnumFieldInfo <TEnum> >();
valueLookup = new Dictionary <TEnum, EnumFieldInfo <TEnum> >();
foreach (FieldInfo field in Type.GetFields(BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic))
{
var info = new EnumFieldInfo <TEnum>(field, IsUInt64, UnderlyingTypeSize);
nameLookup.Add(info.Name, info);
if (!valueLookup.ContainsKey(info.Value))
{
valueLookup.Add(info.Value, info);
}
}
}