source: trip-planner-front/node_modules/webpack/lib/dependencies/ConstDependency.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/*
2 MIT License http://www.opensource.org/licenses/mit-license.php
3 Author Tobias Koppers @sokra
4*/
5
6"use strict";
7
8const makeSerializable = require("../util/makeSerializable");
9const NullDependency = require("./NullDependency");
10
11/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
12/** @typedef {import("../ChunkGraph")} ChunkGraph */
13/** @typedef {import("../Dependency")} Dependency */
14/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
15/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
16/** @typedef {import("../ModuleGraph")} ModuleGraph */
17/** @typedef {import("../ModuleGraphConnection").ConnectionState} ConnectionState */
18/** @typedef {import("../util/Hash")} Hash */
19
20class ConstDependency extends NullDependency {
21 /**
22 * @param {string} expression the expression
23 * @param {number|[number, number]} range the source range
24 * @param {string[]=} runtimeRequirements runtime requirements
25 */
26 constructor(expression, range, runtimeRequirements) {
27 super();
28 this.expression = expression;
29 this.range = range;
30 this.runtimeRequirements = runtimeRequirements
31 ? new Set(runtimeRequirements)
32 : null;
33 }
34
35 /**
36 * Update the hash
37 * @param {Hash} hash hash to be updated
38 * @param {UpdateHashContext} context context
39 * @returns {void}
40 */
41 updateHash(hash, context) {
42 hash.update(this.range + "");
43 hash.update(this.expression + "");
44 if (this.runtimeRequirements)
45 hash.update(Array.from(this.runtimeRequirements).join() + "");
46 }
47
48 /**
49 * @param {ModuleGraph} moduleGraph the module graph
50 * @returns {ConnectionState} how this dependency connects the module to referencing modules
51 */
52 getModuleEvaluationSideEffectsState(moduleGraph) {
53 return false;
54 }
55
56 serialize(context) {
57 const { write } = context;
58 write(this.expression);
59 write(this.range);
60 write(this.runtimeRequirements);
61 super.serialize(context);
62 }
63
64 deserialize(context) {
65 const { read } = context;
66 this.expression = read();
67 this.range = read();
68 this.runtimeRequirements = read();
69 super.deserialize(context);
70 }
71}
72
73makeSerializable(ConstDependency, "webpack/lib/dependencies/ConstDependency");
74
75ConstDependency.Template = class ConstDependencyTemplate extends (
76 NullDependency.Template
77) {
78 /**
79 * @param {Dependency} dependency the dependency for which the template should be applied
80 * @param {ReplaceSource} source the current replace source which can be modified
81 * @param {DependencyTemplateContext} templateContext the context object
82 * @returns {void}
83 */
84 apply(dependency, source, templateContext) {
85 const dep = /** @type {ConstDependency} */ (dependency);
86 if (dep.runtimeRequirements) {
87 for (const req of dep.runtimeRequirements) {
88 templateContext.runtimeRequirements.add(req);
89 }
90 }
91 if (typeof dep.range === "number") {
92 source.insert(dep.range, dep.expression);
93 return;
94 }
95
96 source.replace(dep.range[0], dep.range[1] - 1, dep.expression);
97 }
98};
99
100module.exports = ConstDependency;
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