Calling functions through Dynamic doesn't do anything

[nadako]

This doesn't work, because when wrapped in Dynamic, the Function is stored in PointerData, which doesn't override the default __Run method, so it effectively does nothing.

class Main {
    static function test() {
        return 1;
    }

    static function getFnDynamic():Dynamic {
        return cpp.Function.fromStaticFunction(test);
    }

    static function main() {
        var fn = getFnDynamic();
        if (fn() != 1)
            throw "oh no";
    }
}

This might be an issue @larsiusprime is currently fighting with.

[nadako]

Wrapping in Dynamic lime/openfl in the first place is caused by HaxeFoundation/haxe#6074.

[hughsando]

Pointers wrapped in Dynamic are not designed to be callable Dynamically.
They must be unwrapped explicitly before calling, like:

    static function main() {
        var fn:cpp.Callable<Void->Int> = getFnDynamic();
        if (fn() != 1)
            throw "oh no";
    }

The problem with the referring issue is that the Dynamic was created in the first place, not that it is not callable once it is created.