Source: variable_pool.js

/*************************************************************
 *
 *  Copyright (c) 2015-2016 The MathJax Consortium
 *
 *  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.
 */
/**
 * @fileoverview Generic class for keeping track of menu variables.
 *
 * @author volker.sorge@gmail.com (Volker Sorge)
 */
/// <reference path="variable.ts" />
var ContextMenu;
(function (ContextMenu) {
    class VariablePool {
        /**
         * @constructor
         */
        constructor() {
            this.pool = {};
        }
        /**
         * Inserts a new variable into the pool.
         * @param {Variable<T>} variable The new variable.
         */
        insert(variable) {
            this.pool[variable.getName()] = variable;
        }
        /**
         * Lookup a variable in the pool. Returns undefined if the variable does not
         * exist.
         * @param {string} name The name of the variable.
         * @return {?Variable<T>} The variable if it is in the pool.
         */
        lookup(name) {
            return this.pool[name];
        }
        /**
         * Removes the variable from the pool.
         * @param {name} name The name of the variable.
         */
        remove(name) {
            delete this.pool[name];
        }
    }
    ContextMenu.VariablePool = VariablePool;
})(ContextMenu || (ContextMenu = {}));