/// <summary>
/// Determines <see cref="EnumSerializationMethod"/> for the target.
/// </summary>
/// <param name="context">Context information.</param>
/// <param name="enumType">The target enum type.</param>
/// <param name="enumMemberSerializationMethod">The method argued by the member.</param>
/// <returns>Determined <see cref="EnumSerializationMethod"/> for the target.</returns>
public static EnumSerializationMethod DetermineEnumSerializationMethod(
SerializationContext context,
Type enumType,
EnumMemberSerializationMethod enumMemberSerializationMethod )
{
EnumSerializationMethod method = context.EnumSerializationMethod;
switch ( enumMemberSerializationMethod )
{
case EnumMemberSerializationMethod.ByName:
{
method = EnumSerializationMethod.ByName;
break;
}
case EnumMemberSerializationMethod.ByUnderlyingValue:
{
method = EnumSerializationMethod.ByUnderlyingValue;
break;
}
default:
{
var attributesOnType = enumType.GetCustomAttributes( typeof( MessagePackEnumAttribute ), false );
if ( attributesOnType.Length > 0 )
{
// ReSharper disable once PossibleNullReferenceException
method = ( attributesOnType[ 0 ] as MessagePackEnumAttribute ).SerializationMethod;
}
break;
}
}
return method;
}
public static EnumSerializationMethod DetermineEnumSerializationMethod(
SerializationContext context,
Type enumType,
EnumMemberSerializationMethod enumMemberSerializationMethod
)
{
if ( context == null )
{
throw new ArgumentNullException( "context" );
}
if ( enumType == null )
{
throw new ArgumentNullException( "enumType" );
}
EnumSerializationMethod method = context.EnumSerializationMethod;
switch ( enumMemberSerializationMethod )
{
case EnumMemberSerializationMethod.ByName:
{
method = EnumSerializationMethod.ByName;
break;
}
case EnumMemberSerializationMethod.ByUnderlyingValue:
{
method = EnumSerializationMethod.ByUnderlyingValue;
break;
}
default:
{
#if NETFX_CORE
var messagePackEnumAttribute =
enumType.GetTypeInfo().GetCustomAttribute<MessagePackEnumAttribute>();
if ( messagePackEnumAttribute != null)
{
method = messagePackEnumAttribute.SerializationMethod;
#else
var messagePackEnumAttributes =
enumType.GetCustomAttributes( typeof( MessagePackEnumAttribute ), true );
if ( messagePackEnumAttributes.Length > 0 )
{
// ReSharper disable once PossibleNullReferenceException
method = ( messagePackEnumAttributes[ 0 ] as MessagePackEnumAttribute ).SerializationMethod;
#endif // NETFX_CORE
}
break;
}
}
return method;
}
}
