Re: [pygccxml-development] Removing copy constructor

[Benoit L. <ben...@mo...>]

Benoit Leveau wrote:
> Roman Yakovenko wrote:
>> On Tue, Apr 13, 2010 at 3:11 PM, Benoit Leveau
>> <ben...@mo...> wrote:
>>> That's really interesting...I didn't know py++ was supposed to detect this
>>> case (when a class has a non-copyable member).
>> :-)
>>
>> Take a look on:
>>
>> http://pygccxml.svn.sourceforge.net/viewvc/pygccxml/pyplusplus_dev/unittests/data/noncopyable_to_be_exported.hpp?view=markup
>> http://pygccxml.svn.sourceforge.net/viewvc/pygccxml/pyplusplus_dev/unittests/noncopyable_tester.py?view=markup
>>
>> and the attached generated file
>>
>>> I'm going to try to reproduce
>>> your example, then i'll introduce my types...hopefully at some point I'll
>>> see what's causing the problem.
>>> I'll let you know what I can find.
>> Cool.
> 
> Thanks a lot! I'll try this in a few minutes..
> I should have looked in the unit tests, I didn't think about it...
using your example, I indeed don't get a copy-constructor, even after 
"complexifying" the class so it looks more like mine... this is probably 
something tricky! I'm not sure I really have to bind that class, but 
I'll let you know if I find where the problem was

I was thinking about something. I had a few troubles now and then using 
the call_policies. I explain:
If you want to use "copy_non_const_reference" you use:
function.call_policies = 
call_policies.return_value_policy(call_policies.copy_non_const_reference)

but if you want to use return_internal_reference you use:
function.call_policies = call_policies.return_internal_reference()

I had to look into call_policies.py and from time to time I forget and 
get some errors (even sometimes py++ doesn't complain but the errors 
appear at compilation).
All these policies are listed in the same section, without any mention 
that one is a function, the others are string and need to be passed to 
return_value_policy().
It might be useful to add that to the documentation, if it's not already 
somewhere I missed.

Benoit