mirror of https://github.com/tc39/test262.git
41 lines
860 B
JavaScript
41 lines
860 B
JavaScript
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// Copyright (C) 2024 André Bargull. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-object-environment-records-hasbinding-n
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description: >
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Lookups in proxy binding object for identifier reference.
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info: |
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9.1.1.2.1 HasBinding ( N )
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1. Let bindingObject be envRec.[[BindingObject]].
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2. Let foundBinding be ? HasProperty(bindingObject, N).
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3. If foundBinding is false, return false.
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...
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features: [Proxy, Reflect]
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flags: [noStrict]
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includes: [compareArray.js, proxyTrapsHelper.js]
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---*/
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var log = [];
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// Empty environment.
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var env = {};
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var proxy = new Proxy(env, allowProxyTraps({
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has(t, pk) {
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log.push("has:" + String(pk));
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return Reflect.has(t, pk);
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},
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}));
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with (proxy) {
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Object;
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}
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assert.compareArray(log, [
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// HasBinding, step 2.
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"has:Object",
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]);
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