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From Carlos Rovira <carlosrov...@apache.org>
Subject Re: Static inheritance
Date Mon, 23 Apr 2018 20:28:45 GMT
Ok, so that works in JS, but will work as well in SWF?

2018-04-23 20:25 GMT+02:00 Harbs <harbs.lists@gmail.com>:

> https://github.com/devongovett/fontkit/blob/master/src/opentype/shapers/
> DefaultShaper.js
> https://github.com/devongovett/fontkit/blob/master/src/opentype/shapers/
> UniversalShaper.js
> https://github.com/devongovett/fontkit/blob/master/src/opentype/shapers/
> ArabicShaper.js
>
> UniversalShaper and ArabicShaper extend DefaultShaper. All methods are
> static and the classes are never instantiated. The static “plan” method in
> the base class calls the static methods in the subclasses using “this”.
>
> I would not have guessed something like this would be possible, but Devon
> Govett makes very extensive use of ES6 features. I’ve learned quite a bit
> about ES6 just by reading his code… ;-)
>
> Harbs
>
> On Apr 23, 2018, at 8:25 PM, Alex Harui <aharui@adobe.com> wrote:
>
> Harbs,
>
> Can you provide a link to more info on how 'this' works in statics?  MDN
> makes it sound like it points to the global object even in ES6.
>
> I saw an article that code duplication isn't a perfect emulation of ES6
> statics in ES5.
> https://www.bennadel.com/blog/3300-static-methods-are-
> inherited-when-using-es6-extends-syntax-in-javascript-and-node-js.htm
>
> On 4/22/18, 11:46 PM, "Harbs" <harbs.lists@gmail.com> wrote:
>
>    It seems like ES6 supports static inheritance. The means you can define
> a class with static methods which can be called in subclasses. You can also
> use “this” in static methods which will refer to the subclass methods if
> overridden. This is obviously something which doesn’t work in AS3.
>
>     I’m porting an ES6 library to AS3 and I’m trying to figure out the
> best way to port this kind of code. I’m thinking that code duplication is
> probably simplest, although I might just convert the static classes into
> singletons.
>
>    Harbs
>
>
>


-- 
Carlos Rovira
http://about.me/carlosrovira

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