blob: 0ed46492de825373efd1caf19f8becdb33ab8940 (
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
|
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 14.2
description: >
ArrowFunction `this` cannot be overridden by thisArg
9.2.4 FunctionInitialize (F, kind, ParameterList, Body, Scope)
...
9. If kind is Arrow, set the [[ThisMode]] internal slot of F to lexical.
...
9.2.1.2 OrdinaryCallBindThis ( F, calleeContext, thisArgument )
1. Let thisMode be the value of F’s [[ThisMode]] internal slot.
2. If thisMode is lexical, return NormalCompletion(undefined).
...
---*/
var calls = 0;
var usurper = {};
[1].forEach(value => {
calls++;
assert.notSameValue(this, usurper);
}, usurper);
assert.sameValue(calls, 1);
reportCompare(0, 0);
|