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
49
50
51
52
53
54
55
|
// Copyright (C) 2019 Caio Lima (Igalia SL). All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Subclass can access private methods of a superclass (private setter)
esid: sec-privatefieldget
info: |
SuperCall : super Arguments
...
10. Perform ? InitializeInstanceElements(result, F).
...
InitializeInstanceFieldsElements ( O, constructor )
1. Assert: Type ( O ) is Object.
2. Assert: Assert constructor is an ECMAScript function object.
3. If constructor.[[PrivateBrand]] is not undefined,
a. Perform ? PrivateBrandAdd(O, constructor.[[PrivateBrand]]).
4. Let fieldRecords be the value of constructor's [[Fields]] internal slot.
5. For each item fieldRecord in order from fieldRecords,
a. Perform ? DefineField(O, fieldRecord).
6. Return.
features: [class, class-methods-private]
---*/
class S {
set #m(v) { this._v = v }
superAccess(v) { this.#m = v; }
}
class C extends S {
set #m(v) { this._u = v; }
access(v) {
return this.#m = v;
}
}
let c = new C();
c.access('test262');
assert.sameValue(c._u, 'test262');
c.superAccess('super class');
assert.sameValue(c._v, 'super class');
let s = new S();
s.superAccess('super class')
assert.sameValue(s._v, 'super class');
assert.throws(TypeError, function() {
c.access.call(s, 'foo');
}, 'invalid access of C private method');
reportCompare(0, 0);
|