From: Joel VanderWerf <vjoel@...>
Date: 2007-05-03T03:25:12+09:00
Subject: Re: C DSL anyone?

Brad Phelan wrote:
> Just curious,
> 
> is anybody working on a C language DSL that could generate C code. I'm 
> kinda interested in how it may be possible to use RSpec to unit test C
> code in a nice way.

Here's one:

http://raa.ruby-lang.org/project/cgenerator/
http://rb-cgen.darwinports.com/

There's an example at:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/170530

IMO, cgen's shadow class mechanism is what differentiates cgen from 
RubyInline. (Shadow classes give you an easy way of defining and 
inheriting T_DATA structs as if they were just part of your ruby 
classes, using the shadow_attr_accessor methods.) RubyInline is probably 
more sophisticated in many ways (compiler options, storing intermediate 
code securely, availability as a gem).

I've been using cgen since 2001 for boosting the performance of 
numerical integration and simulations. I've also used it to wrap some 
libraries that I didn't want to bother with swig for.

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407