From: Brian Candler <b.candler@...>
Date: 2009-04-15T18:34:07+09:00
Subject: Re: Proc.call with custom bindings

Adam Strzelecki wrote:
> If it possible to call Proc instance with custom bindings.

I don't think so, and in the general case this would be very difficult 
(e.g. it could change dynamically whether 'foo' represents a local 
variable or a method call)

> The reason I am asking, is that I am thinking about improving
> performance of template engines that generate Ruby code upon parsing
> template, and then call eval(@precompiledsrc) upon each render of
> template.

See how Rails solves this problem:

http://github.com/rails/rails/blob/3c1187699a80e0c4a003f5693389595cd644390f/actionpack/lib/action_view/template/renderable.rb

Scroll down to the private 'def compile!' at the bottom.

Regards,

Brian.
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