Re: [pygccxml-development] properties detection

[Roman Y. <rom...@gm...>]

On Thu, Aug 7, 2008 at 8:47 PM, Damien Fagnou
<dam...@mo...> wrote:
> Hi ,
>
> we are trying to use the Python properties ,
> idealy I would like to use the automatic detection :
>
> mb = module_builder_t( ... )
> number = mb.class_( 'myClass' )
> number.add_properties( exclude_accessors=False ) #accessors will be exposed
>
> our accessor are of type :
>
>        float getRadius();
>        void setRadius(float rad);
>
> and I would like the properties to be 'radius'
>
> is this form normaly detected ?

No. "get" function should be const, otherwise Py++ thinks that the
function has a side effect, and doesn't expose it as property.

> we try to do :
> self.moduleBuilder.classes().add_properties( exclude_accessors=False )
>
> but nothing ..
> is there a way to see more what the add_properties algo is doing ?

Of course. It is open source project :-)
Take a look on this file
http://pygccxml.svn.sourceforge.net/viewvc/pygccxml/pyplusplus_dev/pyplusplus/decl_wrappers/properties.py?revision=842&view=markup

In your case I suggest you to create new class, which derives from
name_based_recognizer_t class and override "is_getter" function.

Then pass instance of the new class to add_properties method:

  number.add_properties( recognizer=..., exclude_accessors=False )
#accessors will be exposed

As for the name, you can also override "find_out_property_name"
function, so it will convert "Radius" to "radius"

HTH.

-- 
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/