It looks like the native keyword is allowed on functions only. You'll get a
compiler error if you try to add the native keyword onto a class. After
discovering this, I looked at how classes are compiled into
playerglobal.swc, and it looks like they have [native] metadata. That could
possibly serve the same purpose.

Here are a few options that might work:

1) Modify the compiler to allow the native keyword to be used on classes.

2) Use [native] metadata to detect typedef classes.

3) Check the class for a constructor that has the native keyword (since a
constructor is a function, native is allowed there).

--
Josh Tynjala
Bowler Hat LLC <https://bowlerhat.dev>


On Tue, Jul 9, 2019 at 8:08 PM Alex Harui <[email protected]> wrote:

> Good idea.  I have this vague memory that there are some other gotchas
> around using "native", but give it a try and see what happens.
>
> -Alex
>
> On 7/9/19, 4:21 PM, "Josh Tynjala" <[email protected]> wrote:
>
>     You know, I just realized... we should start adding the "native"
> modifier
>     to ActionScript classes in typedef SWCs. Typedef SWCs serve the same
>     purpose as playerglobal/airglobal SWCs, which are also compiled as
>     "native". They all define APIs that will be available at run-time and
> the
>     SWC should only be used for checking types and things at compile-time.
>
>     IDefinition has an isNative() method that tells you if a class was
> marked
>     with the "native" keyword. We would use that instead of
>     library-path/external-library-path to determine whether goog.require()
> is
>     needed for a particular class. This would keep
>     library-path/external-library-path working as they always have, without
>     affecting goog.require().
>
>     I think I actually suggested using the "native" keyword for typedefs a
> very
>     long time ago. I think you said that externc or the JS emitter didn't
>     handle it properly. Since I wasn't very familiar with the compiler
> code at
>     the time, I didn't think I could fix it, so I dropped the idea.
>
>     This is what was missing. We were ignoring a feature of the language
> that
>     was meant for exactly this situation.
>
>     --
>     Josh Tynjala
>     Bowler Hat LLC <
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbowlerhat.dev&amp;data=02%7C01%7Caharui%40adobe.com%7Cbdb3db4ff29e40f289e908d704c425d7%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C1%7C636983112848931274&amp;sdata=OejBnXkhiEnesxpytUFjtQZ6NOCrMR1%2FWK9zhiVqvuw%3D&amp;reserved=0
> >
>
>
>     On Tue, Jul 9, 2019 at 4:00 PM Alex Harui <[email protected]>
> wrote:
>
>     > Category #1 is when someone intends to combine code from a SWC into
>     > another SWC to create one mega-swc, maybe to reduce the number of
> SWCs or,
>     > back in the day, to create one RSL instead of two.  I don't think
> Royale
>     > should ever need to do this.
>     >
>     > Category #2 is the other AS classes from other SWCs you need.  As you
>     > mentioned Jewel.SWC uses Basic org.apache.royale.states.States (from
>     > Core.swc or Basic.swc).
>     >
>     > Category #3 is definitions that are not in Royale code.  For SWF
> versions
>     > of SWCs, it is everything in playerglobal/airglobal.  So Sprite,
>     > DisplayObject, other flash.*.* packages.  For JS versions of SWCs it
> is
>     > HTMLElement and other stuff in js.swc or other typedefs.
>     >
>     > If you are suggesting that somehow the compiler will know that some
> SWCs
>     > on the external-library-path are typedefs vs a framework class from
>     > Core.swc or Basic.swc, that might be possible, but I don't know how
>     > efficient that will be (or accurate) to determine that, plus
> portions of
>     > the compiler have a test for "isExternal()" that we'd have to make
> sure we
>     > get right.
>     >
>     > That's why I suggest that we add some new option that lists classes
> that
>     > shouldn't be linked into library.swf without marking them
> "isExternal()".
>     > There is already a similar option that does mark classes as
> "isExternal()"
>     > that we might be able to leverage.
>     >
>     > HTH,
>     > -Alex
>     >
>     >
>     > On 7/9/19, 3:43 PM, "Josh Tynjala" <[email protected]>
> wrote:
>     >
>     >     > 3) code that should not be in the output SWC that doesn't
> support
>     >     goog.require/goog.provide
>     >
>     >     Is there anything other than a typedef SWC that could be
> classified as
>     > #3?
>     >     It seems like we have an extra category that doesn't exist in
>     > practice, but
>     >     we're giving it priority over a category that is more common.
>     >
>     >     Not just with framework SWCs either. Third-party SWCs that
> include
>     > custom
>     >     components would need to set the framework SWCs on the
>     >     external-library-path too.
>     >
>     >     --
>     >     Josh Tynjala
>     >     Bowler Hat LLC <
>     >
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbowlerhat.dev&amp;data=02%7C01%7Caharui%40adobe.com%7Cbdb3db4ff29e40f289e908d704c425d7%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C1%7C636983112848931274&amp;sdata=OejBnXkhiEnesxpytUFjtQZ6NOCrMR1%2FWK9zhiVqvuw%3D&amp;reserved=0
>     > >
>     >
>     >
>     >     On Tue, Jul 9, 2019 at 3:33 PM Alex Harui
> <[email protected]>
>     > wrote:
>     >
>     >     > I'm not sure why Jewel CSS is winding up in non-Jewel apps,
> but the
>     > issue
>     >     > of whether SWC dependencies should be on the library-path or
>     >     > external-library-path isn't so much as a bug (functionality
> that
>     > isn't
>     >     > working as expected) but rather, a problem we've had "forever".
>     >     >
>     >     > With only -library-path and -external-library-path options,
> that is
>     > only
>     >     > two categories to categorize:
>     >     >
>     >     > 1) code from another library you want included in the output
> SWC
>     >     > 2) code that should not be in the output SWC but supports
>     >     > goog.require/goog.provide
>     >     > 3) code that should not be in the output SWC that doesn't
> support
>     >     > goog.require/goog.provide
>     >     >
>     >     > When we build the framework, we rarely ever want #1.  So we've
> been
>     > using
>     >     > -library-path for #2 and -external-library-path to be #3 and
> somehow
>     > got
>     >     > this far by ignoring the fact that code that shouldn't be
> duplicated
>     > in the
>     >     > SWCs are.  I think it has been like that "forever", so no idea
> why
>     > it is
>     >     > breaking now unless folks are using the JS versions of the
> SWCs more
>     > these
>     >     > days.
>     >     >
>     >     > I didn't think the duplication was causing problems but since
> it
>     >     > apparently is, I think the compiler would need a way to know to
>     > exclude
>     >     > certain classes from the output SWF.  I think there is already
> an
>     > -externs
>     >     > option but that requires listing every class which would be
> painful
>     > to
>     >     > administrate.  And I think that might re-categorize the class
> as
>     > being on
>     >     > the -external-library-path which we don't want either.  So
> maybe a
>     > new
>     >     > compiler option to exclude all classes from a SWC in the output
>     > library.swf
>     >     > is best.
>     >     >
>     >     > HTH,
>     >     > -Alex
>     >     >
>     >     > On 7/9/19, 3:06 PM, "Josh Tynjala" <[email protected]>
>     > wrote:
>     >     >
>     >     >     I have confirmed that these SWCs are defined on the
> library-path
>     > in the
>     >     >     compile-js-config.xml used to build JewelJS.swc. Instead,
> it
>     > should be
>     >     >     using the external-library-path or
> js-external-library-path.
>     >     >
>     >     >     In compile-swf-config.xml for Jewel.swc, the dependencies
> are
>     > correctly
>     >     >     defined on external-library-path so that they aren't
> included in
>     >     > Jewel.swc.
>     >     >
>     >     >     Unfortunately, my initial attempts to use
> external-library-path
>     > or
>     >     >     js-external-library-path are running into issues. I worry
> that
>     > it may
>     >     > be
>     >     >     related to this comment in compile-js-config.xml where the
> SWCs
>     > were
>     >     > added
>     >     >     to the library-path:
>     >     >
>     >     >     <!-- asjscompc won't 'link' these classes in, but will
> list their
>     >     > requires
>     >     >          if these swcs are on the external-library-path then
> their
>     > requires
>     >     >          will not be listed -->
>     >     >
>     >     >     I could be wrong, but I interpret this comment to mean that
>     >     > goog.require()
>     >     >     is not added if something is on the external-library-path.
> That
>     > sounds
>     >     > like
>     >     >     a bug in the compiler, and this was more of a workaround
> than the
>     >     > correct
>     >     >     way to fix things.
>     >     >
>     >     >     --
>     >     >     Josh Tynjala
>     >     >     Bowler Hat LLC <
>     >     >
>     >
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbowlerhat.dev&amp;data=02%7C01%7Caharui%40adobe.com%7Cbdb3db4ff29e40f289e908d704c425d7%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C1%7C636983112848941268&amp;sdata=W32ZsQSlp6yXbypFbx%2B26jenv3stcKDO5iXxvhpyDPM%3D&amp;reserved=0
>     >     > >
>     >     >
>     >     >
>     >     >     On Tue, Jul 9, 2019 at 2:35 PM Josh Tynjala <
>     > [email protected]
>     >     > >
>     >     >     wrote:
>     >     >
>     >     >     > It looks like JewelJS.swc includes some classes in the
> SWC that
>     >     > probably
>     >     >     > shouldn't be there. One example (but there are many
> more):
>     >     >     > org.apache.royale.states.State.
>     >     >     >
>     >     >     > These are core classes that should be from dependencies,
> and I
>     >     > suspect
>     >     >     > that something might be on the library-path instead of
> the
>     >     >     > external-library-path. Because the compiler found the
> class in
>     >     > JewelJS.swc,
>     >     >     > it assumes that it needs defaults.css from JewelJS.swc
> too.
>     >     >     >
>     >     >     > To try to reproduce this issue, I created a sample app
> that
>     > uses only
>     >     >     > Basic components. I'm seeing that the compiler is trying
> to use
>     >     >     > defaults.css from Basic, Express, Jewel, and
>     > MaterialDesignLite.
>     >     >     >
>     >     >     > I'll take a look at the compiler options for some of the
> other
>     > SWCs
>     >     > to see
>     >     >     > if anything catches my eye.
>     >     >     >
>     >     >     > --
>     >     >     > Josh Tynjala
>     >     >     > Bowler Hat LLC <
>     >     >
>     >
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbowlerhat.dev&amp;data=02%7C01%7Caharui%40adobe.com%7Cbdb3db4ff29e40f289e908d704c425d7%7Cfa7b1b5a7b34438794aed2c178decee1%7C0%7C1%7C636983112848941268&amp;sdata=W32ZsQSlp6yXbypFbx%2B26jenv3stcKDO5iXxvhpyDPM%3D&amp;reserved=0
>     >     > >
>     >     >     >
>     >     >     >
>     >     >     > On Tue, Jul 9, 2019 at 3:21 AM Harbs <
> [email protected]>
>     > wrote:
>     >     >     >
>     >     >     >> I have no jewel components in my app, but I’m suddenly
> seeing
>     > TONS
>     >     > of
>     >     >     >> jewel css in my app.
>     >     >     >>
>     >     >     >> Similarly, I’m seeing Basic CSS (such as Button) which
> did
>     > not used
>     >     > to be
>     >     >     >> included (and is messing up the visuals in my app).
>     >     >     >>
>     >     >     >> Has something changed with the logic which includes CSS?
>     >     >     >>
>     >     >     >> Harbs
>     >     >     >
>     >     >     >
>     >     >
>     >     >
>     >     >
>     >
>     >
>     >
>
>
>

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