mirror of https://github.com/nodejs/node.git
56 lines
2.0 KiB
JavaScript
56 lines
2.0 KiB
JavaScript
/**
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* @fileoverview A simple map that helps avoid collisions on the Object prototype.
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* @author Jamund Ferguson
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* @copyright 2015 Jamund Ferguson. All rights reserved.
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* @copyright 2011-2013 Ariya Hidayat <ariya.hidayat@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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"use strict";
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function StringMap() {
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this.$data = {};
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}
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StringMap.prototype.get = function (key) {
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key = "$" + key;
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return this.$data[key];
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};
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StringMap.prototype.set = function (key, value) {
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key = "$" + key;
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this.$data[key] = value;
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return this;
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};
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StringMap.prototype.has = function (key) {
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key = "$" + key;
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return Object.prototype.hasOwnProperty.call(this.$data, key);
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};
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StringMap.prototype.delete = function (key) {
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key = "$" + key;
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return delete this.$data[key];
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};
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module.exports = StringMap;
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