// Copyright (C) 2015 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es6id: 9.5.7 description: > The result of [[HasProperty]] is a Boolean value and will affect has checkings. False returned when target property exists; info: | [[HasProperty]] (P) ... 12. Return booleanTrapResult. features: [Proxy] ---*/ var target = { attr: 1 }; var p = new Proxy(target, { has: function(t, prop) { return false; } }); assert.sameValue(("attr" in p), false); reportCompare(0, 0);