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
56
57
|
// Copyright (C) 2019 Caio Lima. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Successfully access private method on Proxy objects without using [[Get]]
esid: sec-getvalue
info: |
GetValue(V)
...
5. If IsPropertyReference(V), then
...
b. If IsPrivateReference(V), then
i. Let env be the running execution context's PrivateNameEnvironment.
ii. Let field be ? ResolveBinding(GetReferencedName(V), env).
iii. Assert: field is a Private Name.
iv. Return ? PrivateFieldGet(field, base).
c. Return ? base.[[Get]](GetReferencedName(V), GetThisValue(V)).
PrivateFieldGet(P, O)
...
4. Perform ? PrivateBrandCheck(O, P).
5. If P.[[Kind]] is "method",
a. Return P.[[Value]].
...
includes: [compareArray.js]
features: [class, class-methods-private, Proxy]
---*/
let arr = [];
class ProxyBase {
constructor() {
return new Proxy(this, {
get: function (obj, prop) {
arr.push(prop);
return obj[prop];
}
});
}
}
class Test extends ProxyBase {
#f() {
return 3;
}
method() {
return this.#f();
}
}
let t = new Test();
let r = t.method();
assert.sameValue(r, 3);
assert.compareArray(arr, ['method']);
reportCompare(0, 0);
|
