1 | /*
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2 | MIT License http://www.opensource.org/licenses/mit-license.php
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3 | Author Tobias Koppers @sokra
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4 | */
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5 |
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6 | ;
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7 |
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8 | const createHash = require("./util/createHash");
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9 |
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10 | /** @typedef {import("./Dependency")} Dependency */
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11 | /** @typedef {import("./DependencyTemplate")} DependencyTemplate */
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12 | /** @typedef {typeof import("./util/Hash")} Hash */
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13 |
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14 | /** @typedef {new (...args: any[]) => Dependency} DependencyConstructor */
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15 |
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16 | class DependencyTemplates {
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17 | /**
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18 | * @param {string | Hash} hashFunction the hash function to use
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19 | */
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20 | constructor(hashFunction = "md4") {
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21 | /** @type {Map<Function, DependencyTemplate>} */
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22 | this._map = new Map();
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23 | /** @type {string} */
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24 | this._hash = "31d6cfe0d16ae931b73c59d7e0c089c0";
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25 | this._hashFunction = hashFunction;
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26 | }
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27 |
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28 | /**
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29 | * @param {DependencyConstructor} dependency Constructor of Dependency
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30 | * @returns {DependencyTemplate} template for this dependency
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31 | */
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32 | get(dependency) {
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33 | return this._map.get(dependency);
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34 | }
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35 |
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36 | /**
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37 | * @param {DependencyConstructor} dependency Constructor of Dependency
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38 | * @param {DependencyTemplate} dependencyTemplate template for this dependency
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39 | * @returns {void}
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40 | */
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41 | set(dependency, dependencyTemplate) {
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42 | this._map.set(dependency, dependencyTemplate);
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43 | }
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44 |
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45 | /**
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46 | * @param {string} part additional hash contributor
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47 | * @returns {void}
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48 | */
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49 | updateHash(part) {
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50 | const hash = createHash(this._hashFunction);
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51 | hash.update(`${this._hash}${part}`);
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52 | this._hash = /** @type {string} */ (hash.digest("hex"));
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53 | }
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54 |
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55 | getHash() {
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56 | return this._hash;
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57 | }
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58 |
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59 | clone() {
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60 | const newInstance = new DependencyTemplates(this._hashFunction);
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61 | newInstance._map = new Map(this._map);
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62 | newInstance._hash = this._hash;
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63 | return newInstance;
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64 | }
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65 | }
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66 |
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67 | module.exports = DependencyTemplates;
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