Operator overloading?

[杨博]

Hello, everyone. I am glad to anounce my library Hoo, which enables operator overloading for Haxe.

My first intention is enable better syntax for Int64, like this:

var i64 = Int64.ofInt(1234567890);

// Output: 123456789000054321
trace(Int64.toStr(i64 * 100000000 + 54321));

After doing some work, it does work. And I found the way I use for Int64 is suitable for more purpose. Anybody interesting?

[Simon Krajewski]

Am 08.01.2013 16:21, schrieb 杨博:

Hello, everyone. I am glad to anounce my library Hoo, which enables operator overloading for Haxe.

Very nice! I like the using-based solution, it nicely takes care of the selection this way.

Simon

[杨博]

Thanks. BTW: I use a selector as the first parameter for evaluate, not just the left operand of the operator. That's because sometimes I need to choose overloaded function by the right operand. e.g. 123+Int64.ofInt(123)

在 2013年1月8日星期二UTC+8下午11时57分07秒，Simon Krajewski写道：

[Simon Krajewski]

Am 08.01.2013 17:10, schrieb 锟筋博:

Thanks. BTW: I use a selector as the first parameter for evaluate, not just the left operand of the operator. That's because sometimes I need to choose overloaded function by the right operand. e.g. 123+Int64.ofInt(123)

I saw, and it's the right thing to do. Did you try allowing EArray as pseudo-operator?

Simon

[杨博]

Not yet. Could provide a patch for the feature?

在 2013年1月9日星期三UTC+8上午12时13分57秒，Simon Krajewski写道：

[Jason O'Neil]

Really nice library...

I'm always impressed with your use of macros :)

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[Luca]

Would it be possible to program optimisations into this too?

for instance should you overload + and * for vector types like:

(+) a b => new Point(a.x+b.x, a.y+b.y);
(*) a x => new Point(a.x * x, a.y * x);

you might want to have: (a + b) * x to be converted to new Point((a.x+b.x)*x, (a.y+b.y)*x) instead

[杨博]

Yes! You can implement evaluate as macro function, which produce optimise code if the parameter expressions is ENew.

在 2013年1月10日星期四UTC+8上午9时28分00秒，Luca写道：