From: itsme213 <itsme213@...>
Date: 2005-01-14T03:11:14+09:00
Subject: Re: Duck Typing as Pattern Matching

Completing that last posting ...

"itsme213" <itsme213@hotmail.com> wrote

> A separate, but related, issue is that I _really_ think anywhere selectors
> are passed around in 2.0 they should uniformly include information about
> method arity, keyword arg names, and block params (at least optionally).
If
> 2.0 does selector namespaces, then selectors have to include namespace
info
> as well.
>     x.respond_to?(:x) where :x is in namespace-1
>     x.respond_to?(x) is :x is in namespace-2.

Thus respond_to?(x) could:
- make x a namespace-aware selector, not just a symbol
- return (also?) a MethodInfo object with arity, key-args, block

When we register_method_missing_handlers Ruby can extract MethodInfo from
the block.