public static object Decode(PyObject py)
{
// Let's aasume that when python use big endian, dotnet also and respectively with little endian
var dType = py.GetAttr("dtype");
var kind = dType.GetAttr("kind").As <char>();
var itemSize = dType.GetAttr("itemsize").As <int>();
switch (kind)
{
case 'i': // integer
switch (itemSize)
{
case 1: // sbyte
return(py.DecodeFast <sbyte>(Decode));
case 2: // short
return(py.DecodeFast <short>(Decode));
case 4: // int
return(py.DecodeFast <int>(Decode));
case 8: // long
return(py.DecodeFast <long>(Decode));
}
break;
case 'b': // boolean
return(py.DecodeFast <bool>(Decode));
case 'u': // unsigned integer
switch (itemSize)
{
case 1: // byte
return(py.DecodeFast <byte>(Decode));
case 2: // ushort
return(py.DecodeFast <ushort>(Decode));
case 4: // uint
return(py.DecodeFast <uint>(Decode));
case 8: // ulong
return(py.DecodeFast <ulong>(Decode));
}
break;
case 'f': // floating number
switch (itemSize)
{
case 4: // float
return(py.DecodeFast <float>(Decode));
case 8: // double
return(py.DecodeFast <double>(Decode));
}
break;
case 'c': // complex number
break;
case 'm': // timedelta
return(py.DecodeFast <TimeSpan>((p, a) => Decode(p, dType.GetTimeFactor(), a)));
case 'M': // datetime
return(py.DecodeFast <DateTime>((p, a) => Decode(p, dType.GetTimeFactor(), a)));
case 'O': // object
return(py.DecodeSafe <string>()); // Todo: do better here if it's not necessary a string
case 'S': // string
return(py.DecodeSafe <string>()); // Obsolete since python 3
case 'U': // string as unicode
return(py.DecodeSafe <string>());
case 'V': // fixed chunk of memory (void)
break;
}
throw new NotSupportedException($"numpy dtypr: {dType}, Kind: {kind}, ItemSize: {itemSize} is not supported");
}
