From: Christian Neukirchen <chneukirchen@...>
Date: 2006-09-21T01:59:20+09:00
Subject: Re: instance_exec in Rails (was: the future of Ruby)

Devin Mullins <twifkak@comcast.net> writes:

> Christian Neukirchen wrote:
>> OT: I must be dumb, but if it was that easy, why did Mauricio
>> Fernandez need almost a page of code to produce a good instance_exec?
> AFAIK, you're not dumb. Rails just extracted the fancy logic into
> Proc#bind (which doesn't come with Ruby). And the Rails instance_exec
> isn't a good instance_exec, IIRC (and I might not).

Yeah.  I was pretty sure #bind wouldn't work in general (it's only
defined for UnboundMethod by core).

So, the Rails instance_exec is good, but they'd "better" use mfp's
Proc#bind.

> Devin
-- 
Christian Neukirchen  <chneukirchen@gmail.com>  http://chneukirchen.org