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
|
// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-proxy-object-internal-methods-and-internal-slots-get-p-receiver
description: >
If "get" trap is null or undefined, [[Get]] call is properly
forwarded to [[ProxyTarget]] (which is also a Proxy object).
info: |
[[Get]] ( P, Receiver )
[...]
5. Let target be O.[[ProxyTarget]].
6. Let trap be ? GetMethod(handler, "get").
7. If trap is undefined, then
a. Return ? target.[[Get]](P, Receiver).
features: [Proxy, Symbol]
---*/
var stringTarget = new Proxy(new String("str"), {});
var stringProxy = new Proxy(stringTarget, {
get: null,
});
assert.sameValue(stringProxy.length, 3);
assert.sameValue(stringProxy[0], "s");
assert.sameValue(stringProxy[4], undefined);
var sym = Symbol();
var target = new Proxy({}, {
get: function(_target, key) {
switch (key) {
case sym: return 1;
case "10": return 2;
case "foo": return 3;
}
},
});
var proxy = new Proxy(target, {
get: null,
});
assert.sameValue(proxy[sym], 1);
assert.sameValue(proxy[10], 2);
assert.sameValue(Object.create(proxy).foo, 3);
assert.sameValue(proxy.bar, undefined);
reportCompare(0, 0);
|
