/* * Copyright (c) 2023 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ (function returnFalsishStrict() { "use strict"; function trySet(o) { o["bla"] = 0; } var proxy = new Proxy({}, {}); var proxy2 = new Proxy({}, { set() { return ""; } }); trySet(proxy); trySet(proxy); try { trySet(proxy2) } catch (error) { print(error instanceof TypeError); } })(); const options = { cause: 'a cause' }; const proxy = new Proxy(options, { get: () => 'proxied cause'}); const err = Error('message', proxy); print(err.cause);