1 | /*
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2 | Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
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3 |
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4 | Redistribution and use in source and binary forms, with or without
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5 | modification, are permitted provided that the following conditions are met:
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6 |
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7 | * Redistributions of source code must retain the above copyright
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8 | notice, this list of conditions and the following disclaimer.
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9 | * Redistributions in binary form must reproduce the above copyright
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10 | notice, this list of conditions and the following disclaimer in the
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11 | documentation and/or other materials provided with the distribution.
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12 |
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13 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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14 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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15 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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16 | ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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17 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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18 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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19 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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20 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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21 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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22 | THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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23 | */
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24 |
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25 | /*global module:true*/
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26 | (function () {
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27 | ;
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28 |
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29 | var Map;
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30 |
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31 | if (typeof global.Map !== 'undefined') {
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32 | // ES6 Map
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33 | Map = global.Map;
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34 | } else {
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35 | Map = function Map() {
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36 | this.__data = {};
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37 | };
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38 |
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39 | Map.prototype.get = function MapGet(key) {
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40 | key = '$' + key;
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41 | if (this.__data.hasOwnProperty(key)) {
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42 | return this.__data[key];
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43 | }
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44 | };
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45 |
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46 | Map.prototype.has = function MapHas(key) {
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47 | key = '$' + key;
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48 | return this.__data.hasOwnProperty(key);
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49 | };
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50 |
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51 | Map.prototype.set = function MapSet(key, val) {
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52 | key = '$' + key;
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53 | this.__data[key] = val;
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54 | };
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55 |
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56 | Map.prototype['delete'] = function MapDelete(key) {
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57 | key = '$' + key;
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58 | return delete this.__data[key];
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59 | };
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60 |
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61 | Map.prototype.clear = function MapClear() {
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62 | this.__data = {};
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63 | };
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64 |
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65 | Map.prototype.forEach = function MapForEach(callback, thisArg) {
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66 | var real, key;
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67 | for (real in this.__data) {
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68 | if (this.__data.hasOwnProperty(real)) {
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69 | key = real.substring(1);
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70 | callback.call(thisArg, this.__data[real], key, this);
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71 | }
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72 | }
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73 | };
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74 |
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75 | Map.prototype.keys = function MapKeys() {
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76 | var real, result;
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77 | result = [];
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78 | for (real in this.__data) {
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79 | if (this.__data.hasOwnProperty(real)) {
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80 | result.push(real.substring(1));
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81 | }
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82 | }
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83 | return result;
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84 | };
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85 |
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86 | Map.prototype.values = function MapValues() {
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87 | var real, result;
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88 | result = [];
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89 | for (real in this.__data) {
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90 | if (this.__data.hasOwnProperty(real)) {
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91 | result.push(this.__data[real]);
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92 | }
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93 | }
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94 | return result;
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95 | };
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96 |
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97 | Map.prototype.items = function MapItems() {
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98 | var real, result;
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99 | result = [];
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100 | for (real in this.__data) {
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101 | if (this.__data.hasOwnProperty(real)) {
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102 | result.push([real.substring(1), this.__data[real]]);
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103 | }
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104 | }
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105 | return result;
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106 | };
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107 | }
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108 |
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109 | module.exports = Map;
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110 | }());
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111 | /* vim: set sw=4 ts=4 et tw=80 : */
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