From: Charles Oliver Nutter <charles.nutter@...>
Date: 2009-02-12T04:55:05+09:00
Subject: [ruby-core:22004] Re: 1.8.7 Specifics

Luis Lavena wrote:
> Even AST generated by 1.8.6-p287 differs from 1.8.6-p114, something
> like that could break ParseTree and Ruby2Ruby.

FWIW, parsetree-like tools are *always* going to face this problem from 
version to version, and will require constant updating. That's a primary 
reason we have not moved to support PT in JRuby...we change our AST 
fairly often.

- Charlie