summaryrefslogtreecommitdiffstats
path: root/js/src/tests/non262/Iterator/from/proxy-not-wrapped.js
blob: df38e0fc86df613db25d4d22e6f65cf1320285da (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
32
33
34
// |reftest| skip-if(!this.hasOwnProperty('Iterator')) -- Iterator is not enabled unconditionally
const log = [];
const handlerProxy = new Proxy({}, {
  get: (target, key, receiver) => (...args) => {
    log.push(`${key}: ${args[1]?.toString()}`);

    const item = Reflect[key](...args);
    if (typeof item === 'function')
      return (...args) => new Proxy(item.apply(receiver, args), handlerProxy);
    return item;
  },
});

class Iter extends Iterator {
  [Symbol.iterator]() {
    return this;
  }
  next() {
    return { done: false, value: 0 };
  }
}
const iter = new Iter();
const proxy = new Proxy(iter, handlerProxy);
const wrap = Iterator.from(proxy);

assertEq(
  log.join('\n'),
  `get: Symbol(Symbol.iterator)
get: next
getPrototypeOf: undefined`
);

if (typeof reportCompare === 'function')
  reportCompare(0, 0);