[IronPython] clr.CompileSubclassTypes restrictions on list of types

[Tom Wright]

Thanks the reply,

Could you clarify slightly what you mean by the Python's normal 
restrictions. I was guessing the restriction might be something like:

"When compiling a list of types, if the list contains a class B which 
inherits from A then A must be contained in the list."

The interesting thing here is that the call to CompileSubclassTypes 
works when we pass it one huge list of types, but not when we call if 
repeatedly with smaller lists.

Thanks
Tom

Dino Viehland wrote:
> The only restrictions are the normal restrictions that Python has regarding
> inheritance.  In this case it looks like you're hitting that you cannot 
> inherit from more than one base type w/ a different layout.
>
> Basically it looks like you're trying to pre-compile the equivalent of:
>
> class c(float, set): pass
>
> Which isn't legal in Python so my guess is there is an issue w/ the way you
> split them up.
>
>   
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com [mailto:users-
>> bounces at lists.ironpython.com] On Behalf Of Tom Wright
>> Sent: Tuesday, November 10, 2009 9:39 AM
>> To: Discussion of IronPython
>> Subject: [IronPython] clr.CompileSubclassTypes restrictions on list of types
>>
>> Hi,
>>
>> Are there any restrictions placed on the list of types that can be
>> passed to CompileSubclassTypes?
>>
>> We are having issues with a clr.AddReference(DllContainingSubclasses)
>> being very slow, so are trying to split the compiled subclasses across
>> multiple dlls to indicate progress between the loading of these dlls.
>>
>> However, when trying to compile a partial list of types we get the
>> following error:
>>
>> Traceback (most recent call last):
>>   File "c:\buildshare\gitrepo\precompile_subclasses.py", line 40, in
>> c:\buildsha
>> re\gitrepo\precompile_subclasses.py
>> TypeError: : can only extend one CLI or builtin type, not both
>> Microsoft.Scripti
>> ng.Runtime.Extensible`1[[System.Double, mscorlib, Version=2.0.0.0,
>> Culture=neutr
>> al, PublicKeyToken=b77a5c561934e089]] (for
>> IronPython.Runtime.Types.PythonType)
>> and IronPython.Runtime.SetCollection (for
>> IronPython.Runtime.Types.PythonType)
>>
>>
>> Any help is much appreciated,
>> Tom
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