summaryrefslogtreecommitdiffstats
path: root/js/src/tests/test262/language/expressions/super/prop-expr-obj-val-from-arrow.js
blob: 9d7087d80ae175ea7b76e005f41b5da2b6e41c5b (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
43
44
45
46
47
48
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-super-keyword
es6id: 12.3.5
description: Value of reference returned by SuperProperty (from arrow function)
info: |
  [...]
  4. If the code matched by the syntactic production that is being evaluated is
     strict mode code, let strict be true, else let strict be false.
  5. Return ? MakeSuperPropertyReference(propertyKey, strict).

  12.3.5.3 Runtime Semantics: MakeSuperPropertyReference

  1. Let env be GetThisEnvironment( ).
  2. If env.HasSuperBinding() is false, throw a ReferenceError exception.
  3. Let actualThis be ? env.GetThisBinding().
  4. Let baseValue be ? env.GetSuperBase().
  5. Let bv be ? RequireObjectCoercible(baseValue).
  6. Return a value of type Reference that is a Super Reference whose base
     value component is bv, whose referenced name component is propertyKey,
     whose thisValue component is actualThis, and whose strict reference flag
     is strict.
features: [arrow-function]
---*/

var fromA, fromB;
var A = { fromA: 'a', fromB: 'a' };
var B = { fromB: 'b' };
Object.setPrototypeOf(B, A);

var obj = {
  fromA: 'c',
  fromB: 'c',
  method() {
    fromA = (() => { return super['fromA']; })();
    fromB = (() => { return super['fromB']; })();
  }
};

Object.setPrototypeOf(obj, B);

obj.method();

assert.sameValue(fromA, 'a');
assert.sameValue(fromB, 'b');

reportCompare(0, 0);