private static void ValidateEnumValue(Type enumType, object value)
{
if (!EnumTools.IsValid(enumType, value))
{
throw new InvalidDataException($"Read value {value} is not defined in the enum type {enumType}.");
}
}
private static object ReadEnum(Stream stream, Type enumType, bool strict, ByteConverter converter)
{
converter = converter ?? ByteConverter.System;
Type valueType = Enum.GetUnderlyingType(enumType);
int valueSize = Marshal.SizeOf(valueType);
object value;
// Read enough bytes to form an enum value.
FillBuffer(stream, valueSize);
if (valueType == typeof(Byte))
{
value = Buffer[0];
}
else if (valueType == typeof(SByte))
{
value = (sbyte)Buffer[0];
}
else if (valueType == typeof(Int16))
{
value = converter.ToInt16(Buffer);
}
else if (valueType == typeof(Int32))
{
value = converter.ToInt32(Buffer);
}
else if (valueType == typeof(Int64))
{
value = converter.ToInt64(Buffer);
}
else if (valueType == typeof(UInt16))
{
value = converter.ToUInt16(Buffer);
}
else if (valueType == typeof(UInt32))
{
value = converter.ToUInt32(Buffer);
}
else if (valueType == typeof(UInt64))
{
value = converter.ToUInt64(Buffer);
}
else
{
throw new NotImplementedException($"Unsupported enum type {valueType}.");
}
// Check if the value is defined in the enumeration, if requested.
if (strict)
{
EnumTools.IsValid(enumType, value);
}
return(value);
}
// ---- METHODS (PRIVATE) --------------------------------------------------------------------------------------
private static void WriteEnum(Stream stream, Type enumType, object value, bool strict, ByteConverter converter)
{
converter = converter ?? ByteConverter.System;
Type valueType = Enum.GetUnderlyingType(enumType);
// Write the enum value.
byte[] buffer = Buffer;
if (valueType == typeof(Byte))
{
Buffer[0] = (byte)value;
}
else if (valueType == typeof(SByte))
{
Buffer[0] = (byte)(sbyte)value;
}
else if (valueType == typeof(Int16))
{
converter.GetBytes((Int16)value, buffer, 0);
}
else if (valueType == typeof(Int32))
{
converter.GetBytes((Int32)value, buffer, 0);
}
else if (valueType == typeof(Int64))
{
converter.GetBytes((Int64)value, buffer, 0);
}
else if (valueType == typeof(UInt16))
{
converter.GetBytes((UInt16)value, buffer, 0);
}
else if (valueType == typeof(UInt32))
{
converter.GetBytes((UInt32)value, buffer, 0);
}
else if (valueType == typeof(UInt64))
{
converter.GetBytes((UInt64)value, buffer, 0);
}
else
{
throw new NotImplementedException($"Unsupported enum type {valueType}.");
}
// Check if the value is defined in the enumeration, if requested.
if (strict)
{
EnumTools.IsValid(enumType, value);
}
stream.Write(buffer, 0, Marshal.SizeOf(valueType));
}