What is the compiler currently doing?
My quess is something like this.
1) XML parser is used to build some sort of javascript source from lzx files
2) Then this is combined with the core laszlo files and the combination
is some sort of version of ecma edition 4.
3) Using some compiler compiler like antlr or similar AST is created.
4) And using various techniques (mostly manual hacks :) from this AST
the source/bytecode file(s) are generated for the chosen runtime.
Was this quess in the right direction?
What is the compiler compiler you are using?
- rami
Max Carlson wrote:
Well... Yes! Rhino is much less of a hack than Jython. And much
better supported!
P T Withington wrote:
Ha! After all the work I did to rip out Jython you want me to cast the
compiler back into another dynamic language?
On 2009-12-02, at 13:27, Max Carlson wrote:
I don't know about JVM vs JavaScriptCore/V8 performance. But I do
know that Rhino has a lot of overhead when moving stuff across the
Java/JavaScript divide, which may have been a pain point.
Last night I was fantasizing about embedding Rhino in the compiler so
we could hack the AST with something more dynamic than Java. Not
sure how practical that is, but it could be cool to play with when
you're done with all the compiler refactoring!
P T Withington wrote:
Which is kinda funny, since it is compiling to Java byte codes.
Does this mean that Javascript VM's are out-performing Java VM's
these days?
On 2009-12-02, at 12:57, Max Carlson wrote:
Yeah, I believe the original webtop server used Rhino. Not sure
why that was scrapped in favor of 'Pure Java' - probably for
performance. Rhino is no where near some of the more modern JS
engines in terms of performance...
P T Withington wrote:
They never would have slipped that by the Times editors!
I thought Adam's initial wt work used Javascript on the server?
On 2009-12-01, at 22:53, Henry Minsky wrote:
That is a thought-provoking article. And we do need some kind of
a standard
module system...
I liked this quote
"In these post-QBasic times, HTML, CSS, and JavaScript have
become for every
ungainly, bespectacled troglodyte the gateway from social exile
to deeper
social exile."
On Tue, Dec 1, 2009 at 10:37 PM, Max Carlson <[email protected]>
wrote:
http://arstechnica.com/web/news/2009/12/commonjs-effort-sets-javascript-on-path-for-world-domination.ars?utm_source=rss&utm_medium=rss&utm_campaign=rss
Interesting! I'd love to be able to develop server-side code in
JavaScript. I was just chatting with a friend (and OL
developer) the other
day about being able to describe server-side behavior as part of
LZX, and
have part of the application run on the server and part on the
client.
So many possibilities!
--
Regards,
Max Carlson
OpenLaszlo.org
--
Henry Minsky
Software Architect
[email protected]
--
Regards,
Max Carlson
OpenLaszlo.org
--
Regards,
Max Carlson
OpenLaszlo.org
