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// 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-set-p-v-receiver
description: >
If "set" trap is null or undefined, [[Set]] call is properly
forwarded to [[ProxyTarget]] (which is also a Proxy object).
info: |
[[Set]] ( P, V, Receiver )
[...]
5. Let target be O.[[ProxyTarget]].
6. Let trap be ? GetMethod(handler, "set").
7. If trap is undefined, then
a. Return ? target.[[Set]](P, V, Receiver).
features: [Proxy, Reflect]
includes: [compareArray.js]
---*/
var array = [1, 2, 3];
var arrayTarget = new Proxy(array, {});
var arrayProxy = new Proxy(arrayTarget, {
set: null,
});
arrayProxy.length = 0;
assert.compareArray(array, []);
Object.preventExtensions(array);
assert(!Reflect.set(arrayProxy, "foo", 2));
assert.throws(TypeError, function() {
"use strict";
arrayProxy[0] = 3;
});
var string = new String("str");
var stringTarget = new Proxy(string, {});
var stringProxy = new Proxy(stringTarget, {
set: null,
});
stringProxy[4] = 1;
assert.sameValue(string[4], 1);
assert(!Reflect.set(stringProxy, "0", "s"));
assert(!Reflect.set(stringProxy, "length", 3));
reportCompare(0, 0);
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