// 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] ---*/ var barValue; var plainObject = { get foo() {}, set bar(value) { barValue = value; }, }; var plainObjectTarget = new Proxy(plainObject, {}); var plainObjectProxy = new Proxy(plainObjectTarget, {}); plainObjectProxy.bar = 1; assert.sameValue(barValue, 1); assert.throws(TypeError, function() { "use strict"; plainObjectProxy.foo = 2; }); var regExp = /(?:)/g; var regExpTarget = new Proxy(regExp, {}); var regExpProxy = new Proxy(regExpTarget, {}); assert(!Reflect.set(regExpProxy, "global", true)); regExpProxy.lastIndex = 1; assert.sameValue(regExp.lastIndex, 1); reportCompare(0, 0);