From: Ryan Davis <ryand-ruby@...>
Date: 2009-08-05T07:29:24+09:00
Subject: Re: Kind of ParsTree for 1.9.1


On Aug 3, 2009, at 23:20 , Macario Ortega wrote:

> Hi, I've been missing ParseTree very badly in 1.9.1. So in my  
> naivité I
> decided to try to convert YARV iseq's to Sexp's similar of those
> produced by ParseTree. So far I can convert simple expressions, method
> calls, nested method calls, arrays, hashes, I can extract method
> parameter and default values provided the expression is not too
> complicated.
> At first it seemed easy until I hitted control structures.
>
> Is someone aware of a similar effort?
>
> Does anyone else craves AST manipulation in 1.9.1 as bad as me?
>
> Anyone care to join?

This is pretty awesome. It is gonna only get worse tho. :)

We talked about doing this a while back and came to the conclusion  
that it was more work than we were interested in investing. Please  
prove us wrong and you'll get a least a couple beers at the next  
rubyconf.

A suggestion: Use test/pt_testcase.rb from the ParseTree project and  
you'll be a LOT happier. See the test cases from either ruby2c or  
ruby_parser as examples of test reuse.