Packing on the function level

[Eoghan]

Has anyone made an attempt to pack up MochiKit omitting functions that
are not used?
e.g. include DateTime.toISODate but not DateTime.toPaddedAmericanDate
if the latter doesn't happen to be called in a given file.

I realise this would be non trivial to do automatically..

[Fredrik]

This should be possible using the Google Closure compiler:
http://code.google.com/closure/compiler/
(Some issues to watch out for: http://code.google.com/closure/compiler/docs/api-tutorial3.html#dangers)

I hope to find time to try this myself also, please report back about
your progress! Would be nice if MochiKit can be verified to be
compilable using Closure.

Regards
// Fredrik

[Eoghan]

Thanks Fredrik, that's exactly what I'm looking for..

No luck compiling a packed version of MochiKit (1.5) and trying to
connect a signal - I get an error "MochiKit.i is undefined". The
closure inspector isn't working for me (FireBug 1.5.0) so I'm afraid I
can't further investigate at this time :-(

[Per Cederberg]

Don't want to send stop-energy around, but is it really worthwhile to
pack MochiKit like that? I mean, the full MochiKit.js is only 197,5 kB
uncompressed. And the customizer we already have lets you pick quite
freely on the module level.

Have you double-checked what type of performance increases you'll see
in you load times if packing a smaller JS file? Perhaps just gzipping
the file will give you a similar speedup?

Cheers,

/Per

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