// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

class A {
  constructor() {
    this.id = 50000;
  }

  getid(a) {
    if (typeof a === 'number') {
      this.id += a;
    }
    return this.id;
  }
}

class B extends A {
  constructor() {
    super();
    this.id = 100;
  }

  getid_A() {
    return super.getid.call(this);
  }

  getid_B(a) {
    return super.getid.call(this, a);
  }
  getid_C(a) {
    var fn = super.getid.bind(this);
    return fn(a);
  }
}

var obj = new B();

assert (obj.getid_A() === 100);
assert (obj.getid_B(1) === 101);
assert (obj.getid_C(1) === 102);
assert (obj.id === 102);