Re: [boost] Any interest in dynamic dispatching mechanism from "interface" to template functions ?

Subject: Re: [boost] Any interest in dynamic dispatching mechanism from "interface" to template functions ?
From: Raffi Enficiaud (raffi.enficiaud_at_[hidden])
Date: 2010-07-01 16:37:07

David Abrahams <dave <at> boostpro.com> writes:

> Does this make sense as a Boost.Python extension?
> 

The idea is to make things in the opposite way :) 
A similar mechanism is already implemented in 
Boost.Python (the "implicit conversion" and the 
registration of manual convertors + matching 
of arguments with the function signatures).

The mechanism in Boost.Python is relying on 
a global registry constructed when the python 
extension are loaded. 
In what I proposed, this "registry" is given 
by the set of convertors available at 
compilation time. These convertors are in a 
sense similar to the "manual convertors" 
in boost.python.

PS.: I refer to manual convertors as the 
structures declaring a special kind of 
conversion from python to C++ (with the two stages
conversion static void* convertible(PyObject* obj_ptr)
+ static XXX* do_convert(PyObject* obj_ptr, void * pos))