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

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const Dependency = require("../Dependency");
+const DependencyTemplate = require("../DependencyTemplate");
+const makeSerializable = require("../util/makeSerializable");
+const memoize = require("../util/memoize");
+
+/** @typedef {import("../ContextModule").ContextOptions} ContextOptions */
+/** @typedef {import("../Dependency").TRANSITIVE} TRANSITIVE */
+/** @typedef {import("../ModuleGraph")} ModuleGraph */
+/** @typedef {import("../WebpackError")} WebpackError */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
+
+const getCriticalDependencyWarning = memoize(() =>
+	require("./CriticalDependencyWarning")
+);
+
+/** @typedef {ContextOptions & { request: string }} ContextDependencyOptions */
+
+/**
+ * @param {RegExp | null | undefined} r regexp
+ * @returns {string} stringified regexp
+ */
+const regExpToString = r => (r ? String(r) : "");
+
+class ContextDependency extends Dependency {
+	/**
+	 * @param {ContextDependencyOptions} options options for the context module
+	 * @param {string=} context request context
+	 */
+	constructor(options, context) {
+		super();
+
+		this.options = options;
+		this.userRequest = this.options && this.options.request;
+		/** @type {false | undefined | string} */
+		this.critical = false;
+		this.hadGlobalOrStickyRegExp = false;
+
+		if (
+			this.options &&
+			(this.options.regExp.global || this.options.regExp.sticky)
+		) {
+			this.options = { ...this.options, regExp: null };
+			this.hadGlobalOrStickyRegExp = true;
+		}
+
+		this.request = undefined;
+		this.range = undefined;
+		this.valueRange = undefined;
+		/** @type {boolean | string | undefined} */
+		this.inShorthand = undefined;
+		// TODO refactor this
+		this.replaces = undefined;
+		this._requestContext = context;
+	}
+
+	/**
+	 * @returns {string | undefined} a request context
+	 */
+	getContext() {
+		return this._requestContext;
+	}
+
+	get category() {
+		return "commonjs";
+	}
+
+	/**
+	 * @returns {boolean | TRANSITIVE} true, when changes to the referenced module could affect the referencing module; TRANSITIVE, when changes to the referenced module could affect referencing modules of the referencing module
+	 */
+	couldAffectReferencingModule() {
+		return true;
+	}
+
+	/**
+	 * @returns {string | null} an identifier to merge equal requests
+	 */
+	getResourceIdentifier() {
+		return (
+			`context${this._requestContext || ""}|ctx request${
+				this.options.request
+			} ${this.options.recursive} ` +
+			`${regExpToString(this.options.regExp)} ${regExpToString(
+				this.options.include
+			)} ${regExpToString(this.options.exclude)} ` +
+			`${this.options.mode} ${this.options.chunkName} ` +
+			`${JSON.stringify(this.options.groupOptions)}` +
+			`${
+				this.options.referencedExports
+					? ` ${JSON.stringify(this.options.referencedExports)}`
+					: ""
+			}`
+		);
+	}
+
+	/**
+	 * Returns warnings
+	 * @param {ModuleGraph} moduleGraph module graph
+	 * @returns {WebpackError[] | null | undefined} warnings
+	 */
+	getWarnings(moduleGraph) {
+		let warnings = super.getWarnings(moduleGraph);
+
+		if (this.critical) {
+			if (!warnings) warnings = [];
+			const CriticalDependencyWarning = getCriticalDependencyWarning();
+			warnings.push(new CriticalDependencyWarning(this.critical));
+		}
+
+		if (this.hadGlobalOrStickyRegExp) {
+			if (!warnings) warnings = [];
+			const CriticalDependencyWarning = getCriticalDependencyWarning();
+			warnings.push(
+				new CriticalDependencyWarning(
+					"Contexts can't use RegExps with the 'g' or 'y' flags."
+				)
+			);
+		}
+
+		return warnings;
+	}
+
+	/**
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(context) {
+		const { write } = context;
+
+		write(this.options);
+		write(this.userRequest);
+		write(this.critical);
+		write(this.hadGlobalOrStickyRegExp);
+		write(this.request);
+		write(this._requestContext);
+		write(this.range);
+		write(this.valueRange);
+		write(this.prepend);
+		write(this.replaces);
+
+		super.serialize(context);
+	}
+
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 */
+	deserialize(context) {
+		const { read } = context;
+
+		this.options = read();
+		this.userRequest = read();
+		this.critical = read();
+		this.hadGlobalOrStickyRegExp = read();
+		this.request = read();
+		this._requestContext = read();
+		this.range = read();
+		this.valueRange = read();
+		this.prepend = read();
+		this.replaces = read();
+
+		super.deserialize(context);
+	}
+}
+
+makeSerializable(
+	ContextDependency,
+	"webpack/lib/dependencies/ContextDependency"
+);
+
+ContextDependency.Template = DependencyTemplate;
+
+module.exports = ContextDependency;