30 lines
598 B
JavaScript
Executable File
30 lines
598 B
JavaScript
Executable File
"use strict";
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var indexOf = require("es5-ext/array/#/e-index-of");
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module.exports = function () {
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var lastId = 0, argsMap = [], cache = [];
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return {
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get: function (args) {
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var index = indexOf.call(argsMap, args[0]);
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return index === -1 ? null : cache[index];
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},
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set: function (args) {
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argsMap.push(args[0]);
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cache.push(++lastId);
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return lastId;
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},
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delete: function (id) {
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var index = indexOf.call(cache, id);
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if (index !== -1) {
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argsMap.splice(index, 1);
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cache.splice(index, 1);
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}
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},
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clear: function () {
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argsMap = [];
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cache = [];
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}
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};
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};
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