instance instanceof mixin?

[CoryGH]

Is there a way to do something like:

let MyMixin = Mixin((superclass) => class extends superclass {
    constructor() {
        super(...arguments);
    }
});
class MyClass extends mix(Array).with(MyMixin) {
    constructor() {
        super();
    }
}
var a = new MyClass();
console.log(a instanceof Array);
console.log(a instanceof MyClass);
console.log(a instanceof MyMixin);

Where the result would be:

true
true
true

Currently it returns:

true
true
Uncaught TypeError: Function has non-object prototype 'undefined' in instanceof check

[minecrawler]

I cannot confirm your bug. I just tested it with

• mixwith v0.1.1 (NPM version)
• NodeJS v6.9.1

on Windows 7 x64

The test code file being:

'use strict';

const mx = require('mixwith');


let MyMixin = mx.Mixin((superclass) => class extends superclass {

    constructor() {
        super(...arguments);
    }
});

class MyClass extends mx.mix(Array).with(MyMixin) {
    constructor() {
        super();
    }
}

var a = new MyClass();

console.log(a instanceof Array);
console.log(a instanceof MyClass);

console.log(a instanceof MyMixin);

with the console output:

"C:\Program Files (x86)\JetBrains\WebStorm 2016.2.1\bin\runnerw.exe" "C:\Program Files\NodeJS\node.exe" --debug-brk=46896 --expose_debug_as=v8debug C:\Users\marco_000\Documents\tmp\mixins.js
Debugger listening on [::]:46896
true
true
true

[Uxspy]

I'm using node v6.9.1 (npm v3.10.8) and got the same error:
TypeError: Function has non-object prototype 'undefined' in instanceof check

[cryonics84]

I get same error

[Yiin]

It's because you need to wrap your mixins with Mixin function.