var extendStatics = Object.setPrototypeOf ||

        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||

        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };

​

var __extends = function (d, b) {

        extendStatics(d, b);

        function __() { this.constructor = d; }

        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());

    };

​

function register(name: string): (obj: any) => void {

    return (obj: any) => document.registerElement(name, obj);

}

​

@register("x-a")

class A {

    private static test = [];

​

    do() {

        return B.test.push("A");

    }

}

​

class B extends A {

}

​

console.log(typeof A.test);

console.log(typeof B.test);