1425bb815Sopenharmony_ci// Copyright JS Foundation and other contributors, http://js.foundation 2425bb815Sopenharmony_ci// 3425bb815Sopenharmony_ci// Licensed under the Apache License, Version 2.0 (the "License"); 4425bb815Sopenharmony_ci// you may not use this file except in compliance with the License. 5425bb815Sopenharmony_ci// You may obtain a copy of the License at 6425bb815Sopenharmony_ci// 7425bb815Sopenharmony_ci// http://www.apache.org/licenses/LICENSE-2.0 8425bb815Sopenharmony_ci// 9425bb815Sopenharmony_ci// Unless required by applicable law or agreed to in writing, software 10425bb815Sopenharmony_ci// distributed under the License is distributed on an "AS IS" BASIS 11425bb815Sopenharmony_ci// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12425bb815Sopenharmony_ci// See the License for the specific language governing permissions and 13425bb815Sopenharmony_ci// limitations under the License. 14425bb815Sopenharmony_ci 15425bb815Sopenharmony_ciassert(Function.prototype.toString.hasOwnProperty('length')); 16425bb815Sopenharmony_ci 17425bb815Sopenharmony_civar obj = Function.prototype.toString.length; 18425bb815Sopenharmony_ci 19425bb815Sopenharmony_ciFunction.prototype.toString.length = function () { 20425bb815Sopenharmony_ci return "shifted"; 21425bb815Sopenharmony_ci}; 22425bb815Sopenharmony_ci 23425bb815Sopenharmony_ciassert(Function.prototype.toString.length === obj);