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app_vue/node_modules/webpack/lib/dependencies/ConstDependency.js

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const makeSerializable = require("../util/makeSerializable");
+const NullDependency = require("./NullDependency");
+
+/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
+/** @typedef {import("../ChunkGraph")} ChunkGraph */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
+/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
+/** @typedef {import("../ModuleGraph")} ModuleGraph */
+/** @typedef {import("../ModuleGraphConnection").ConnectionState} ConnectionState */
+/** @typedef {import("../javascript/JavascriptParser").Range} Range */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
+/** @typedef {import("../util/Hash")} Hash */
+
+class ConstDependency extends NullDependency {
+	/**
+	 * @param {string} expression the expression
+	 * @param {number | Range} range the source range
+	 * @param {(string[] | null)=} runtimeRequirements runtime requirements
+	 */
+	constructor(expression, range, runtimeRequirements) {
+		super();
+		this.expression = expression;
+		this.range = range;
+		this.runtimeRequirements = runtimeRequirements
+			? new Set(runtimeRequirements)
+			: null;
+		this._hashUpdate = undefined;
+	}
+
+	/**
+	 * Update the hash
+	 * @param {Hash} hash hash to be updated
+	 * @param {UpdateHashContext} context context
+	 * @returns {void}
+	 */
+	updateHash(hash, context) {
+		if (this._hashUpdate === undefined) {
+			let hashUpdate = `${this.range}|${this.expression}`;
+			if (this.runtimeRequirements) {
+				for (const item of this.runtimeRequirements) {
+					hashUpdate += "|";
+					hashUpdate += item;
+				}
+			}
+			this._hashUpdate = hashUpdate;
+		}
+		hash.update(this._hashUpdate);
+	}
+
+	/**
+	 * @param {ModuleGraph} moduleGraph the module graph
+	 * @returns {ConnectionState} how this dependency connects the module to referencing modules
+	 */
+	getModuleEvaluationSideEffectsState(moduleGraph) {
+		return false;
+	}
+
+	/**
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(context) {
+		const { write } = context;
+		write(this.expression);
+		write(this.range);
+		write(this.runtimeRequirements);
+		super.serialize(context);
+	}
+
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 */
+	deserialize(context) {
+		const { read } = context;
+		this.expression = read();
+		this.range = read();
+		this.runtimeRequirements = read();
+		super.deserialize(context);
+	}
+}
+
+makeSerializable(ConstDependency, "webpack/lib/dependencies/ConstDependency");
+
+ConstDependency.Template = class ConstDependencyTemplate extends (
+	NullDependency.Template
+) {
+	/**
+	 * @param {Dependency} dependency the dependency for which the template should be applied
+	 * @param {ReplaceSource} source the current replace source which can be modified
+	 * @param {DependencyTemplateContext} templateContext the context object
+	 * @returns {void}
+	 */
+	apply(dependency, source, templateContext) {
+		const dep = /** @type {ConstDependency} */ (dependency);
+		if (dep.runtimeRequirements) {
+			for (const req of dep.runtimeRequirements) {
+				templateContext.runtimeRequirements.add(req);
+			}
+		}
+		if (typeof dep.range === "number") {
+			source.insert(dep.range, dep.expression);
+			return;
+		}
+
+		source.replace(dep.range[0], dep.range[1] - 1, dep.expression);
+	}
+};
+
+module.exports = ConstDependency;