[IronPython] Choosing the right overload

[Jonathan Jacobs]

Jonathan Jacobs wrote:
>>>> Direct3D.Mesh.FromFile.__overloads__[(str, Direct3D.MeshFlags,
> Direct3D.Device, clr.GetClrType(Direct3D.ExtendedMaterial).MakeArrayType())]
> Traceback (most recent call last):
>    File , line 0, in <stdin>##22
>    File , line 0, in get_Item##18
> TypeError: No match found for the method signature (<type 'str'>, <type 
> 'MeshFlags'>, <type 'Device'>, Microsoft.DirectX.Direct3D.ExtendedMaterial[])

I did some digging in the source code, it looks like the problem is the 
indexer for BuiltinFunctionOverloadMapper. The problem appears to be: from 
Python I am unable to specify whether an argument is byref or not and so the 
comparison fails when trying to match signatures.
-- 
Jonathan

When you meet a master swordsman,
show him your sword.
When you meet a man who is not a poet,
do not show him your poem.
                 -- Rinzai, ninth century Zen master