Re: Groovy?

On Thu, 29 Jan 2004, Pat wrote:

> Just curious if anyone is familiar with Groovy, the Java based scripting
> language.

Ayup. :)

> I'm wondering how it compares to BeanShell...  good and bad, what can we learn
> from it, etc.

It doesn't aim to be java compliant, so comparison to BeanShell would
be somewhat apples-to-oranges.  If I want Java scripting, I still turn
to BSH.  If I want something more like python/ruby scripting that happens
to run on the JVM, then I use Groovy.

One thing you BSH could do (if it doesn't already in 2.0; I'm still
on 1.3 or whatnot), is expose the AST.  I use both Groovy and BSH
in Drools, and with Groovy, it's easy to get and walk the AST in
order to do analysis on the expressions.  With BSH, alas, I've had to
add a phase of parsing and analysis using an out-board ANTLR-based
parser, since I couldn't get ahold of the ASTs built by BSH.

Double-parsing isn't fun. :)

	-bob
	(Developer of the Groovy parser)


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