68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const createHash = require("./util/createHash");
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/** @typedef {import("./Dependency")} Dependency */
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/** @typedef {import("./DependencyTemplate")} DependencyTemplate */
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/** @typedef {typeof import("./util/Hash")} Hash */
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/** @typedef {new (...args: any[]) => Dependency} DependencyConstructor */
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class DependencyTemplates {
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/**
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* @param {string | Hash} hashFunction the hash function to use
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*/
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constructor(hashFunction = "md4") {
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/** @type {Map<Function, DependencyTemplate>} */
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this._map = new Map();
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/** @type {string} */
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this._hash = "31d6cfe0d16ae931b73c59d7e0c089c0";
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this._hashFunction = hashFunction;
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}
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/**
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* @param {DependencyConstructor} dependency Constructor of Dependency
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* @returns {DependencyTemplate | undefined} template for this dependency
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*/
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get(dependency) {
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return this._map.get(dependency);
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}
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/**
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* @param {DependencyConstructor} dependency Constructor of Dependency
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* @param {DependencyTemplate} dependencyTemplate template for this dependency
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* @returns {void}
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*/
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set(dependency, dependencyTemplate) {
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this._map.set(dependency, dependencyTemplate);
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}
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/**
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* @param {string} part additional hash contributor
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* @returns {void}
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*/
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updateHash(part) {
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const hash = createHash(this._hashFunction);
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hash.update(`${this._hash}${part}`);
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this._hash = /** @type {string} */ (hash.digest("hex"));
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}
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getHash() {
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return this._hash;
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}
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clone() {
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const newInstance = new DependencyTemplates(this._hashFunction);
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newInstance._map = new Map(this._map);
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newInstance._hash = this._hash;
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return newInstance;
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}
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}
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module.exports = DependencyTemplates;
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