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

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const RuntimeGlobals = require("../RuntimeGlobals");
+const { equals } = require("../util/ArrayHelpers");
+const makeSerializable = require("../util/makeSerializable");
+const propertyAccess = require("../util/propertyAccess");
+const NullDependency = require("./NullDependency");
+
+/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
+/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
+/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
+/** @typedef {import("../ModuleGraph")} ModuleGraph */
+/** @typedef {import("../javascript/JavascriptParser").Range} Range */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
+/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
+/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */
+/** @typedef {import("./CommonJsDependencyHelpers").CommonJSDependencyBaseKeywords} CommonJSDependencyBaseKeywords */
+
+class CommonJsSelfReferenceDependency extends NullDependency {
+	/**
+	 * @param {Range} range range
+	 * @param {CommonJSDependencyBaseKeywords} base base
+	 * @param {string[]} names names
+	 * @param {boolean} call is a call
+	 */
+	constructor(range, base, names, call) {
+		super();
+		this.range = range;
+		this.base = base;
+		this.names = names;
+		this.call = call;
+	}
+
+	get type() {
+		return "cjs self exports reference";
+	}
+
+	get category() {
+		return "self";
+	}
+
+	/**
+	 * @returns {string | null} an identifier to merge equal requests
+	 */
+	getResourceIdentifier() {
+		return "self";
+	}
+
+	/**
+	 * Returns list of exports referenced by this dependency
+	 * @param {ModuleGraph} moduleGraph module graph
+	 * @param {RuntimeSpec} runtime the runtime for which the module is analysed
+	 * @returns {(string[] | ReferencedExport)[]} referenced exports
+	 */
+	getReferencedExports(moduleGraph, runtime) {
+		return [this.call ? this.names.slice(0, -1) : this.names];
+	}
+
+	/**
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(context) {
+		const { write } = context;
+		write(this.range);
+		write(this.base);
+		write(this.names);
+		write(this.call);
+		super.serialize(context);
+	}
+
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 */
+	deserialize(context) {
+		const { read } = context;
+		this.range = read();
+		this.base = read();
+		this.names = read();
+		this.call = read();
+		super.deserialize(context);
+	}
+}
+
+makeSerializable(
+	CommonJsSelfReferenceDependency,
+	"webpack/lib/dependencies/CommonJsSelfReferenceDependency"
+);
+
+CommonJsSelfReferenceDependency.Template = class CommonJsSelfReferenceDependencyTemplate 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,
+		{ module, moduleGraph, runtime, runtimeRequirements }
+	) {
+		const dep = /** @type {CommonJsSelfReferenceDependency} */ (dependency);
+		const used =
+			dep.names.length === 0
+				? dep.names
+				: moduleGraph.getExportsInfo(module).getUsedName(dep.names, runtime);
+		if (!used) {
+			throw new Error(
+				"Self-reference dependency has unused export name: This should not happen"
+			);
+		}
+
+		let base;
+		switch (dep.base) {
+			case "exports":
+				runtimeRequirements.add(RuntimeGlobals.exports);
+				base = module.exportsArgument;
+				break;
+			case "module.exports":
+				runtimeRequirements.add(RuntimeGlobals.module);
+				base = `${module.moduleArgument}.exports`;
+				break;
+			case "this":
+				runtimeRequirements.add(RuntimeGlobals.thisAsExports);
+				base = "this";
+				break;
+			default:
+				throw new Error(`Unsupported base ${dep.base}`);
+		}
+
+		if (base === dep.base && equals(used, dep.names)) {
+			// Nothing has to be changed
+			// We don't use a replacement for compat reasons
+			// for plugins that update `module._source` which they
+			// shouldn't do!
+			return;
+		}
+
+		source.replace(
+			dep.range[0],
+			dep.range[1] - 1,
+			`${base}${propertyAccess(used)}`
+		);
+	}
+};
+
+module.exports = CommonJsSelfReferenceDependency;