blob: 3c58e314ea08643455018602076e151daea12479 (
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
|
// Getting a property that's inherted from a proxy calls the proxy's get handler.
var handler = {
get(t, id, r) {
assertEq(this, handler);
assertEq(t, target);
assertEq(id, "foo");
assertEq(r, obj);
return "bar";
},
getOwnPropertyDescriptor(t, id) {
throw "FAIL";
}
};
var target = {};
var proto = new Proxy(target, handler);
var obj = Object.create(proto);
assertEq(obj.foo, "bar");
// Longer proto chain: same result.
var origObj = obj;
for (var i = 0; i < 4; i++)
obj = Object.create(obj);
assertEq(obj.foo, "bar");
// Chain of transparent proxy wrappers: same result.
obj = origObj;
for (var i = 0; i < 4; i++)
obj = new Proxy(obj, {});
assertEq(obj.foo, "bar");
|