summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/language/statements/class/subclass/derived-class-return-override-with-object.js
blob: a1581be078f0e19fb262a27b3e96d9f1161a03ee (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 9.2.2
description: >
    [[Construct]] ( argumentsList, newTarget)

    ...
    13. If result.[[type]] is return, then
      a. If Type(result.[[value]]) is Object, return NormalCompletion(result.[[value]]).
      ...
    ...

    `return {};`

---*/
var calls = 0;
class Base {
  constructor() {
    this.prop = 1;
    calls++;
  }
}
class Derived extends Base {
  constructor() {
    super();

    return {};
  }
}

var object = new Derived();

// super is called
assert.sameValue(calls, 1, "The value of `calls` is `1`, because `super()`");

// But the this object was discarded.
assert.sameValue(typeof object.prop, "undefined");
assert.sameValue(object instanceof Derived, false);
assert.sameValue(object instanceof Base, false);

reportCompare(0, 0);