I have the following method defined in my application that I am trying to
call from Python using PythonNET
Snippet
public IEnumerable<byte> ReadBuffer(ulong address, int size, out int readCount)
The address can be anything in the range of 0x0_0000_0000 - 0x1_XXXX_XXXX,
when I call this using a value that is less than 0x1_0000_0000 (e.g.,
0x0_01d00_0000) I get an error that the value an Int32 when a UInt64 is
expected, so I created an override that takes an Int32 as the first
parameter and the function works when using values less than 0x1_0000_0000,
so far so good. However, when I try and call the function with an address
>= 0x1_0000_0000 I get the following exception.
System.AggregateException: One or more errors occurred. --->
System.ArgumentException: Expected UInt64, got Int32 in method
System.Collections.Generic.IEnumerab
le`1[System.Byte] ReadBuffer(UInt64, Int32, Int32 ByRef) --->
Python.Runtime.PythonException: Expected UInt64, got Int32
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
---> (Inner Exception #0) System.ArgumentException: Expected UInt64, got
Int32 in method System.Collections.Generic.IEnumerable`1[System.Byte]
ReadBuffer(UInt64
, Int32, Int32 ByRef) ---> Python.Runtime.PythonException: Expected UInt64,
got Int32
--- End of inner exception stack trace ---<---
---> (Inner Exception #1) System.ArgumentException: value too large to
convert in method System.Collections.Generic.IEnumerable`1[System.Byte]
ReadBuffer(Int32,
Int32, Int32 ByRef) ---> Python.Runtime.PythonException: value too large to
convert
--- End of inner exception stack trace ---<---
It seems like the checks in converter.cs will choose Int32 even if the
value is longer that 32-bits (since PyInt is also true for larger than
32-bit values).
Snippet
if (value == Runtime.PyIntType){ result = int32Type;
return true;}
if (value == Runtime.PyLongType){
result = int64Type;
return true;}
So, I am confused how I can get the correct method resolution and the
correct type.
Can anyone shed any light on this?
Regards,
Alex
--
Website: http://earl-of-code.com
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