Source code

Revision control

Copy as Markdown

Other Tools

// Copyright (C) 2019 Caio Lima (Igalia SL). All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: PrivateBrandCheck fails when the object O doesn't have P.[[Brand]] (private method)
esid: sec-privatefieldget
info: |
PrivateFieldGet (P, O)
1. Assert: P is a Private Name.
2. If O is not an object, throw a TypeError exception.
3. If P.[[Kind]] is "field",
a. Let entry be PrivateFieldFind(P, O).
b. If entry is empty, throw a TypeError exception.
c. Return entry.[[PrivateFieldValue]].
4. Perform ? PrivateBrandCheck(O, P).
5. If P.[[Kind]] is "method",
a. Return P.[[Value]].
6. Else,
a. Assert: P.[[Kind]] is "accessor".
b. If P does not have a [[Get]] field, throw a TypeError exception.
c. Let getter be P.[[Get]].
d. Return ? Call(getter, O).
PrivateBrandCheck(O, P)
1. If O.[[PrivateBrands]] does not contain an entry e such that SameValue(e, P.[[Brand]]) is true,
a. Throw a TypeError exception.
features: [class, class-methods-private]
---*/
class C {
#m() { return 'test262'; }
access(o) {
return o.#m();
}
}
let c = new C();
assert.sameValue(c.access(c), 'test262');
let o = {};
assert.throws(TypeError, function() {
c.access(o);
}, 'invalid access a private method');
reportCompare(0, 0);