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From GitBox <...@apache.org>
Subject [GitHub] kennylerma edited a comment on issue #57: Dependency error when extending class and implementing interface from "external" SWC library
Date Sun, 18 Nov 2018 16:02:10 GMT
kennylerma edited a comment on issue #57: Dependency error when extending class and implementing
interface from "external" SWC library
URL: https://github.com/apache/royale-compiler/issues/57#issuecomment-439703474
 
 
   Yeah, I think you're misunderstanding and over-complicating the issue. Currently, creating
a Royale SWC already has the generated javascript files included in the swc which can also
be used as externs.  So, no need to create extern files. 
   
   When using the swc as an external library in a project, those included javascript files
in the swc can be used as externs for Closure.  We just need the royale compiler to tell closure
how to use those files.  As in, which files should be compiled source and which should just
be used as an extern for exclusion.  If the js files came from an external library swc when
building a project, they should be used as a closure extern in the release build.
   
   Here's my workflow now
   1. Create a debug build to generate all the js files in the js-debug folder (this is part
of making a release build already)
   2. Build the files in js-debug with closure using --externs for files that are needed,
but excluded in the finale output and --js for the source to be included in the final output.
   
   `
   java -jar compiler.jar --externs js-debug/class1.js --externs js-debug/class2.js --js js-debug/class3
--js js-debug/class4.js --compilation_level WHITESPACE_ONLY --dependency_mode=STRICT --entry_point=class4.js
--js_output_file=module.js
   `
   
   The only additional thing I'm doing in my workflow is that I have my javascript files that
are needed for --extern compiled by closure into a single javascript file.  So, I only have
to list the one file like --extern myexternallibrary.js  This could be easily generated into
the swc too.
   
   Even if it was required to make SWC files bigger, it doesn't really matter.  Most as3 devs
are not frequently re-building swc files as it's a shared library for other projects and doesn't
add to the size of the release build simply by being a swc vs as3 files.
   
   I hope I'm making a little more sense :)

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