72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
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/**
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* @fileoverview Defines a storage for rules.
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* @author Nicholas C. Zakas
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* @author aladdin-add
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Requirements
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//------------------------------------------------------------------------------
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const builtInRules = require("../rules");
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//------------------------------------------------------------------------------
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// Typedefs
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//------------------------------------------------------------------------------
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/** @typedef {import("../shared/types").Rule} Rule */
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//------------------------------------------------------------------------------
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// Public Interface
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//------------------------------------------------------------------------------
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/**
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* A storage for rules.
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*/
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class Rules {
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constructor() {
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this._rules = Object.create(null);
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}
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/**
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* Registers a rule module for rule id in storage.
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* @param {string} ruleId Rule id (file name).
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* @param {Rule} rule Rule object.
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* @returns {void}
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*/
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define(ruleId, rule) {
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this._rules[ruleId] = rule;
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}
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/**
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* Access rule handler by id (file name).
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* @param {string} ruleId Rule id (file name).
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* @returns {Rule} Rule object.
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*/
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get(ruleId) {
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if (typeof this._rules[ruleId] === "string") {
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this.define(ruleId, require(this._rules[ruleId]));
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}
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if (this._rules[ruleId]) {
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return this._rules[ruleId];
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}
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if (builtInRules.has(ruleId)) {
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return builtInRules.get(ruleId);
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}
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return null;
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}
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*[Symbol.iterator]() {
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yield* builtInRules;
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for (const ruleId of Object.keys(this._rules)) {
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yield [ruleId, this.get(ruleId)];
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}
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}
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}
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module.exports = Rules;
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