[IronPython] Compiling with Pyc for Silverlight

[Michael Foord]

Dino Viehland wrote:
> An easy starting point would be to use ildasm + a Python script + ilasm.  There's also CCI (just released on CodePlex last week) or Cecil which could also probably both be used for the task.
>   

I'll start with ildasm. I looked at Cecil but it was a bit low level. 
I've also been looking into the CompileModules source code. It doesn't 
look impossible to get this actually working on Silverlight and 
serialize out rather than try to save to disk (ScriptCode and 
ScriptCode.SaveToAssembly are all public where a lot of the work is done).

I'll try ildasm first.

Michael
> I can only assume this exception is coming from having the assembly identities being different - but it's strange because it does seem to be looking in the 2.0.5.0 assembly, which is Silverlight, and the type is definitely in there.  Hopefully re-writing the binaries will make this go away.
>
>
>
>   
>> -----Original Message-----
>> From: users-bounces at lists.ironpython.com [mailto:users-
>> bounces at lists.ironpython.com] On Behalf Of Michael Foord
>> Sent: Monday, April 20, 2009 12:43 PM
>> To: Discussion of IronPython
>> Subject: Re: [IronPython] Compiling with Pyc for Silverlight
>>
>> Dino Viehland wrote:
>>     
>>> In theory there's just 1 IL re-write that's required for this to
>>>       
>> work.  And that should be replacing the references to
>> mscorlib/IronPython to point at the Silverlight versions.  There's no
>> way to directly have the written binaries target Silverlight because
>> Reflection Emit has no cross-compilation support :(.
>>     
>> I need to rewrite references to the IronPython / DLR assemblies to use
>> the Silverlight versions and the same for mscorlib.
>>
>> Any pointers as to how I should start?
>>
>>     
>>> Do you know what's happening when trying to import packages?
>>>
>>>
>>>       
>> SystemError
>> at app.py in app.py, line 7 ? SystemError: Could not load type
>> 'Microsoft.Runtime.CompilerServices.StrongBox`1' from assembly
>> 'Microsoft.Scripting.Core, Version=2.0.5.0, Culture=neutral,
>> PublicKeyToken=31bf3856ad364e35'. ? Hide
>>
>> Michael
>>
>>     
>>>> -----Original Message-----
>>>> From: users-bounces at lists.ironpython.com [mailto:users-
>>>> bounces at lists.ironpython.com] On Behalf Of Michael Foord
>>>> Sent: Monday, April 20, 2009 3:34 AM
>>>> To: Discussion of IronPython
>>>> Subject: [IronPython] Compiling with Pyc for Silverlight
>>>>
>>>> Hello guys,
>>>>
>>>> I'd like to modify Pyc to work with Silverlight. I tried it with
>>>>         
>> simple
>>     
>>>> modules and it works straightforwardly - but I have a report that it
>>>> doesn't work with packages.
>>>>
>>>> I'll try it - but if anyone has any idea of how to modify the
>>>>         
>> bytecode
>>     
>>>> generation to target the CoreCLR it would be appreciated. As far as
>>>>         
>> I
>>     
>>>> can tell from looking at the source it isn't adding any direct
>>>> references to the desktop assemblies. Any clues as to what changes I
>>>> should make? (Other than running from Silverlight and serializing
>>>>         
>> the
>>     
>>>> generated assemblies from memory to base64 which I would prefer to
>>>> avoid...).
>>>>
>>>> Michael
>>>>
>>>> --
>>>> http://www.ironpythoninaction.com/
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>>>>
>>>>
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