Re: [pygccxml-development] Recent Py++ modifications...

[Matthias B. <ba...@ir...>]

Roman Yakovenko wrote:
>> One of the tests contains those two lines:
>>
>>          fv = MFloatVector(0.6, 0.7, 0.8)
>>          p = MPoint(fv)
>>
>> When this code is executed, the second line produces the following error:
>>
>> TypeError: No registered converter was able to extract a C++ reference
>> to type class MVector from this Python object of type MFloatVector
>> [...]
> 
> It is not you. I did small code clean up. Basically I moved some code from
> creator_t to relevant decl_wrapper classes. May be I broke somthing. Can 
> you
> create small test case?  Do you use latest version from Subversion?

I've checked out Py++ from last week and gradually did updates to check 
which one was responsible for the failure. The problematic modification 
was done in revision 539: 
http://svn.sourceforge.net/viewvc/pygccxml?view=rev&revision=539

With this modification Py++ generates much more 
implicitly_convertible<>() statements in the main function. For example, 
I now have the following line which I think is responsible for the failure:

     bp::implicitly_convertible< MFloatVector const &, MVector >();

I can't say for sure what is going on inside of Boost.Python and why it 
fails, but at least I know that everything has worked before this 
modification.
What kind of problems was this modification supposed to fix? And how do 
I get back to the previous behavior?

- Matthias -