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From Richard Eckart de Castilho <...@apache.org>
Subject Re: Headers for generated JavaScript files
Date Sun, 06 Sep 2015 09:07:51 GMT
On 06.09.2015, at 11:05, Richard Eckart de Castilho <rec@apache.org> wrote:

> On 06.09.2015, at 07:09, Alex Harui <aharui@adobe.com> wrote:
> 
>> Apache Flex has a cross-compiler (aka transpiler).  It takes ActionScript
>> as an input source language and cross-compiles it into JavaScript.  If you
>> are familiar with TypeScript and its compiler, it is pretty similar.  The
>> binary package for the compiler contains some of these cross-compiled .js
>> files as output.  We are pondering whether we should add ASF headers to
>> these files or some header like: “Generated by Apache Flex Cross-Compiler”
>> or leave it as is.
>> 
>> IMO, it isn’t source.  Yes, folks can modify it and should be able to do
>> so under AL.  Thoughts, opinions, precedence?
> 
> IMHO the output of the transpiler should be under the same license as the
> input, not under the AL. So if you can preserve a license header (or basically
> any comments from the input file) during the transformation, I guess that
> would be the best option. Of course adding a "This is code generated from
> file X by Y version Z on DATE" would be useful. It could also be useful
> to allow users to turn the addition of such a header off or to allow
> them customizing it.

Regarding precedence: I guess look at any macro preprocessor for any language
or even any compiler. Some vendors impose limits on the output of the transformer
(I believe Microsoft does it with some versions Visual Studio), but I haven't seen
such limits on any FOSS transformers so far.

-- Richard


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