Having trouble with JS externs

[Drakim]

I'm trying to create JS externs to use Gibberish in my HTML5 game.

Gibberish has a rather unorthodox structure, and I'm having trouble properly reflecting that with my extern definitions.

Here is the basic hello world example in JS:

Gibberish.init();  

a = new Gibberish.Sine().connect();

The Gibberish class here is purely static, and it contains a static reference to the class Sine, which is instanced, and then the connect method of Sine is called.

Here is my attempt at building an extern for this:

extern class Gibberish {

    static public function init(?bufferSize:Int):Void;

    static public var Sine:Sine;

}

extern class Sine {

    public function new();

    public function connect():Sine;

}

Which does compile my haxe code

Gibberish.init(); var a = new Gibberish.Sine().connect();

but the JS output is wrong:

Gibberish.init();

var a = new Sine().connect();

This gives me an error that Sine is not defined, since it doesn't exist in the global scope, only under Gibberish.Sine.

So, what can I do to avoid this problem? I really don't want to port the entire library to Haxe, or heavily restructure the JS code to play well with the externs.

[Andy Li]

Here is one solution that use @:native metadata to specify the runtime reference of the class:

extern class Gibberish {

    static public function init(?bufferSize:Int):Void;

}

@:native("Gibberish.Sine")

extern class Sine {

    public function new();

    public function connect():Sine;

}

class Test {

static function main()

{

Gibberish.init();

var a = new Sine().connect();

}

}

It will produce:

(function () { "use strict";

var Test = function() { };

Test.main = function() {

Gibberish.init();

var a = new Gibberish.Sine().connect();

};

Test.main();

})();

Best,

Andy

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[Drakim]

Supreme! That was exactly what I needed.

Many thanks.

[Cambiata]

Cool library!
+1 for your externilization work, Drakim!

J