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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-delete-p
description: >
If "deleteProperty" trap is null or undefined, [[Delete]] call is
properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
info: |
[[Delete]] ( P )
[...]
5. Let target be O.[[ProxyTarget]].
6. Let trap be ? GetMethod(handler, "deleteProperty").
7. If trap is undefined, then
a. Return ? target.[[Delete]](P).
features: [Proxy, Reflect]
---*/
var stringTarget = new Proxy(new String("str"), {});
var stringProxy = new Proxy(stringTarget, {
deleteProperty: null,
});
assert(!Reflect.deleteProperty(stringProxy, "length"));
assert.throws(TypeError, function() {
"use strict";
delete stringProxy[0];
});
var regExpTarget = new Proxy(/(?:)/g, {});
var regExpProxy = new Proxy(regExpTarget, {
deleteProperty: null,
});
assert(delete regExpProxy.foo);
assert.throws(TypeError, function() {
"use strict";
delete regExpProxy.lastIndex;
});
reportCompare(0, 0);