Remy Blank <[EMAIL PROTECTED]> writes: >> > But there has to be a better way, hasn't it? >> >> Yes**. The mechanism in Boost.Python allows you to register just the >> relationships between adjacent base and derived classes, and it fills >> in the rest of the graph. Maybe it's time to refactor this code for >> general use in Boost... > > This sounds good. I'm trying to develop an introspection framework for > C++ classes (and later dynamically created classes), so I will already > have the inheritance information. I expect your implementation makes > heavy use of typeid() and dynamic_cast<>?
Yes. > Other conversions would have to be registered explicitly (char -> int, > char const* -> std::string, ...), possibly half-automated by using > typelists and mpl algorithms. That's a whole different beast, since it involves creating a new object. > It's too bad that we have to replicate at runtime what the compiler > already knows how to do at compile time (namely navigating inheritance > hierarchies)... > > I have looked at Boost.Python, and it is very similar to what I had in > mind. Would it be possible to make Boost.Python more general to describe > C++ class information for runtime use, and have Boost.Python be a > subset? ?? There's no way that Boost.Python could be a subset of the facility we're talking about. It does way, way more than casting around an inheritance hierarchy. IOW, it's already way more general. > I don't have a lot of time on my hands, but if you think this would > be a good idea, I would love to give it a try (except that I'm a > little scared by Boost.Python's complexity, and I don't know Python > (yet)). I don't understand. The stuff in inheritance.cpp doesn't touch Python at all. It's pure C++. > BTW, how does Boost.Python compare to SWIG (http://www.swig.org/) ? > It seems to supports Python, amongst others. There's an outdated comparisons page at http://www.boost.org/libs/python/doc/comparisons.html. SWIG and Boost.Python are both much better now than when that was written. -- David Abrahams [EMAIL PROTECTED] * http://www.boost-consulting.com Boost support, enhancements, training, and commercial distribution _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost
