[OpenLayers-Dev] Advanced Closure Compiler for OpenLayers: lite.cfg = 46 kb

Xavier Mamano (jorix) xavier.mamano at gmail.com
Mon Jan 17 08:08:55 EST 2011


Hi developers,

OpenLayers is not ready to use Closure Compiler ADVANCED_OPTIMIZATIONS. 
Now the resulting code fails.

With adjustments in the source, the resulting code can run, and the 
result is: 46 kb for lite.cfg, less than 40% of "jsmin" try 
http://xamamano.appspot.com/ol/46kb/example.html this   
(with basic changes get 57kb, see 
http://code.google.com/intl/ca/closure/compiler/docs/api-tutorial3.html#propnames
Inconsistent Property Names ; 
and with more work is obtained 46kb, see "very pure javascript" 
in 
http://osgeo-org.1803224.n2.nabble.com/OpenLayers-without-warnings-using-the-Closure-Compiler-in-VERBOSE-mode-tc5916529.html
OpenLayers without warnings... )

I have several reasons to believe that the use of advanced optimizations 
is inappropriate to distribute the OpenLayers code. 
ADVANCED_OPTIMIZATIONS can only be suitable for building customized 
projects, but currently is unbeatable in this area.

NOTE: All calculations are not including the license (5kb)

Regards,

Xavier Mamano 

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