From: Lothar Scholz <mailinglists@...>
Date: 2004-11-11T10:24:44+09:00
Subject: Re: Ruby code generation: string vs. AST based (2.0 or beyond)

Hello Eric,

EH> On Nov 9, 2004, at 10:43 PM, itsme213 wrote:

>> Code generation in ruby is great.
>>
>> The only thing I find is that, since it is essentially all string
>> manipulation prior to eval, none of it is executable (or testable!)
>> until it
>> is eval'd. So I find myself writing straight code, testing it, then
>> mentally
>> abstracting out the string patterns in that code, then using those in
>> my
>> code generation.
>>
>> Reading those string patterns more than a day later makes my brain 
>> hurt.
>>
>> What are the chances, somewhere in or beyond 2.0, of code generation
>> being
>> based on something more like the following:
>>  - write and test executable code
>>  - get access to an AST of that code itself
>>  - implement code generation by cloning/modifying the AST clone

EH> Ok, ParseTree is now released, see ruby-talk:119807.  If you need 
EH> help/ideas pop into irc://irc.freenode.net/#ruby2c.

But he would still need a "BuildTree".


-- 
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 Lothar Scholz                        http://www.ruby-ide.com
 CTO Scriptolutions                   Ruby, PHP, Python IDE 's