/// <inheritdoc/>
protected override string?ConvertToValue(out ulong value)
{
long v = SimpleTypeConverter.ParseInt64(StringValue, long.MinValue, long.MaxValue, out var error);
if (error is null)
{
value = (ulong)v;
return(null);
}
value = SimpleTypeConverter.ParseUInt64(StringValue, ulong.MinValue, ulong.MaxValue, out error);
return(error);
}
static ulong?ParseIntegerConstant(CorElementType etype, string c, out string error)
{
error = null;
long smin, smax;
ulong max;
switch (etype)
{
case CorElementType.Boolean:
smin = 0;
smax = 1;
max = 1;
break;
case CorElementType.I:
if (IntPtr.Size == 4)
{
goto case CorElementType.I4;
}
goto case CorElementType.I8;
case CorElementType.U:
case CorElementType.Ptr:
case CorElementType.FnPtr:
if (UIntPtr.Size == 4)
{
goto case CorElementType.U4;
}
goto case CorElementType.U8;
case CorElementType.I1:
case CorElementType.U1:
smin = sbyte.MinValue;
smax = sbyte.MaxValue;
max = byte.MaxValue;
break;
case CorElementType.I2:
case CorElementType.U2:
smin = short.MinValue;
smax = short.MaxValue;
max = ushort.MaxValue;
break;
case CorElementType.I4:
case CorElementType.U4:
smin = int.MinValue;
smax = int.MaxValue;
max = uint.MaxValue;
break;
case CorElementType.I8:
case CorElementType.U8:
smin = long.MinValue;
smax = long.MaxValue;
max = ulong.MaxValue;
break;
default:
return(null);
}
ulong v = SimpleTypeConverter.ParseUInt64(c, 0, max, out error);
if (string.IsNullOrEmpty(error))
{
return(v);
}
v = (ulong)SimpleTypeConverter.ParseInt64(c, smin, smax, out error);
if (string.IsNullOrEmpty(error))
{
return(v);
}
return(null);
}