Updated the files.

my-app/node_modules/webpack/lib/dependencies/CommonJsExportRequireDependency.js

@@ -0,0 +1,393 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const Dependency = require("../Dependency");
+const { UsageState } = require("../ExportsInfo");
+const Template = require("../Template");
+const { equals } = require("../util/ArrayHelpers");
+const makeSerializable = require("../util/makeSerializable");
+const propertyAccess = require("../util/propertyAccess");
+const { handleDependencyBase } = require("./CommonJsDependencyHelpers");
+const ModuleDependency = require("./ModuleDependency");
+const processExportInfo = require("./processExportInfo");
+
+/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
+/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
+/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
+/** @typedef {import("../Dependency").TRANSITIVE} TRANSITIVE */
+/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
+/** @typedef {import("../Module")} Module */
+/** @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 */
+
+const idsSymbol = Symbol("CommonJsExportRequireDependency.ids");
+
+const EMPTY_OBJECT = {};
+
+class CommonJsExportRequireDependency extends ModuleDependency {
+	/**
+	 * @param {Range} range range
+	 * @param {Range} valueRange value range
+	 * @param {CommonJSDependencyBaseKeywords} base base
+	 * @param {string[]} names names
+	 * @param {string} request request
+	 * @param {string[]} ids ids
+	 * @param {boolean} resultUsed true, when the result is used
+	 */
+	constructor(range, valueRange, base, names, request, ids, resultUsed) {
+		super(request);
+		this.range = range;
+		this.valueRange = valueRange;
+		this.base = base;
+		this.names = names;
+		this.ids = ids;
+		this.resultUsed = resultUsed;
+		this.asiSafe = undefined;
+	}
+
+	get type() {
+		return "cjs export require";
+	}
+
+	/**
+	 * @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 Dependency.TRANSITIVE;
+	}
+
+	/**
+	 * @param {ModuleGraph} moduleGraph the module graph
+	 * @returns {string[]} the imported id
+	 */
+	getIds(moduleGraph) {
+		return moduleGraph.getMeta(this)[idsSymbol] || this.ids;
+	}
+
+	/**
+	 * @param {ModuleGraph} moduleGraph the module graph
+	 * @param {string[]} ids the imported ids
+	 * @returns {void}
+	 */
+	setIds(moduleGraph, ids) {
+		moduleGraph.getMeta(this)[idsSymbol] = ids;
+	}
+
+	/**
+	 * 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) {
+		const ids = this.getIds(moduleGraph);
+		const getFullResult = () => {
+			if (ids.length === 0) {
+				return Dependency.EXPORTS_OBJECT_REFERENCED;
+			} else {
+				return [
+					{
+						name: ids,
+						canMangle: false
+					}
+				];
+			}
+		};
+		if (this.resultUsed) return getFullResult();
+		let exportsInfo = moduleGraph.getExportsInfo(
+			moduleGraph.getParentModule(this)
+		);
+		for (const name of this.names) {
+			const exportInfo = exportsInfo.getReadOnlyExportInfo(name);
+			const used = exportInfo.getUsed(runtime);
+			if (used === UsageState.Unused) return Dependency.NO_EXPORTS_REFERENCED;
+			if (used !== UsageState.OnlyPropertiesUsed) return getFullResult();
+			exportsInfo = exportInfo.exportsInfo;
+			if (!exportsInfo) return getFullResult();
+		}
+		if (exportsInfo.otherExportsInfo.getUsed(runtime) !== UsageState.Unused) {
+			return getFullResult();
+		}
+		/** @type {string[][]} */
+		const referencedExports = [];
+		for (const exportInfo of exportsInfo.orderedExports) {
+			processExportInfo(
+				runtime,
+				referencedExports,
+				ids.concat(exportInfo.name),
+				exportInfo,
+				false
+			);
+		}
+		return referencedExports.map(name => ({
+			name,
+			canMangle: false
+		}));
+	}
+
+	/**
+	 * Returns the exported names
+	 * @param {ModuleGraph} moduleGraph module graph
+	 * @returns {ExportsSpec | undefined} export names
+	 */
+	getExports(moduleGraph) {
+		const ids = this.getIds(moduleGraph);
+		if (this.names.length === 1) {
+			const name = this.names[0];
+			const from = moduleGraph.getConnection(this);
+			if (!from) return;
+			return {
+				exports: [
+					{
+						name,
+						from,
+						export: ids.length === 0 ? null : ids,
+						// we can't mangle names that are in an empty object
+						// because one could access the prototype property
+						// when export isn't set yet
+						canMangle: !(name in EMPTY_OBJECT) && false
+					}
+				],
+				dependencies: [from.module]
+			};
+		} else if (this.names.length > 0) {
+			const name = this.names[0];
+			return {
+				exports: [
+					{
+						name,
+						// we can't mangle names that are in an empty object
+						// because one could access the prototype property
+						// when export isn't set yet
+						canMangle: !(name in EMPTY_OBJECT) && false
+					}
+				],
+				dependencies: undefined
+			};
+		} else {
+			const from = moduleGraph.getConnection(this);
+			if (!from) return;
+			const reexportInfo = this.getStarReexports(
+				moduleGraph,
+				undefined,
+				from.module
+			);
+			if (reexportInfo) {
+				return {
+					exports: Array.from(reexportInfo.exports, name => {
+						return {
+							name,
+							from,
+							export: ids.concat(name),
+							canMangle: !(name in EMPTY_OBJECT) && false
+						};
+					}),
+					// TODO handle deep reexports
+					dependencies: [from.module]
+				};
+			} else {
+				return {
+					exports: true,
+					from: ids.length === 0 ? from : undefined,
+					canMangle: false,
+					dependencies: [from.module]
+				};
+			}
+		}
+	}
+
+	/**
+	 * @param {ModuleGraph} moduleGraph the module graph
+	 * @param {RuntimeSpec} runtime the runtime
+	 * @param {Module} importedModule the imported module (optional)
+	 * @returns {{exports?: Set<string>, checked?: Set<string>}} information
+	 */
+	getStarReexports(
+		moduleGraph,
+		runtime,
+		importedModule = moduleGraph.getModule(this)
+	) {
+		let importedExportsInfo = moduleGraph.getExportsInfo(importedModule);
+		const ids = this.getIds(moduleGraph);
+		if (ids.length > 0)
+			importedExportsInfo = importedExportsInfo.getNestedExportsInfo(ids);
+		let exportsInfo = moduleGraph.getExportsInfo(
+			moduleGraph.getParentModule(this)
+		);
+		if (this.names.length > 0)
+			exportsInfo = exportsInfo.getNestedExportsInfo(this.names);
+
+		const noExtraExports =
+			importedExportsInfo &&
+			importedExportsInfo.otherExportsInfo.provided === false;
+		const noExtraImports =
+			exportsInfo &&
+			exportsInfo.otherExportsInfo.getUsed(runtime) === UsageState.Unused;
+
+		if (!noExtraExports && !noExtraImports) {
+			return;
+		}
+
+		const isNamespaceImport =
+			importedModule.getExportsType(moduleGraph, false) === "namespace";
+
+		/** @type {Set<string>} */
+		const exports = new Set();
+		/** @type {Set<string>} */
+		const checked = new Set();
+
+		if (noExtraImports) {
+			for (const exportInfo of exportsInfo.orderedExports) {
+				const name = exportInfo.name;
+				if (exportInfo.getUsed(runtime) === UsageState.Unused) continue;
+				if (name === "__esModule" && isNamespaceImport) {
+					exports.add(name);
+				} else if (importedExportsInfo) {
+					const importedExportInfo =
+						importedExportsInfo.getReadOnlyExportInfo(name);
+					if (importedExportInfo.provided === false) continue;
+					exports.add(name);
+					if (importedExportInfo.provided === true) continue;
+					checked.add(name);
+				} else {
+					exports.add(name);
+					checked.add(name);
+				}
+			}
+		} else if (noExtraExports) {
+			for (const importedExportInfo of importedExportsInfo.orderedExports) {
+				const name = importedExportInfo.name;
+				if (importedExportInfo.provided === false) continue;
+				if (exportsInfo) {
+					const exportInfo = exportsInfo.getReadOnlyExportInfo(name);
+					if (exportInfo.getUsed(runtime) === UsageState.Unused) continue;
+				}
+				exports.add(name);
+				if (importedExportInfo.provided === true) continue;
+				checked.add(name);
+			}
+			if (isNamespaceImport) {
+				exports.add("__esModule");
+				checked.delete("__esModule");
+			}
+		}
+
+		return { exports, checked };
+	}
+
+	/**
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(context) {
+		const { write } = context;
+		write(this.asiSafe);
+		write(this.range);
+		write(this.valueRange);
+		write(this.base);
+		write(this.names);
+		write(this.ids);
+		write(this.resultUsed);
+		super.serialize(context);
+	}
+
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 */
+	deserialize(context) {
+		const { read } = context;
+		this.asiSafe = read();
+		this.range = read();
+		this.valueRange = read();
+		this.base = read();
+		this.names = read();
+		this.ids = read();
+		this.resultUsed = read();
+		super.deserialize(context);
+	}
+}
+
+makeSerializable(
+	CommonJsExportRequireDependency,
+	"webpack/lib/dependencies/CommonJsExportRequireDependency"
+);
+
+CommonJsExportRequireDependency.Template = class CommonJsExportRequireDependencyTemplate extends (
+	ModuleDependency.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,
+			runtimeTemplate,
+			chunkGraph,
+			moduleGraph,
+			runtimeRequirements,
+			runtime
+		}
+	) {
+		const dep = /** @type {CommonJsExportRequireDependency} */ (dependency);
+		const used = moduleGraph
+			.getExportsInfo(module)
+			.getUsedName(dep.names, runtime);
+
+		const [type, base] = handleDependencyBase(
+			dep.base,
+			module,
+			runtimeRequirements
+		);
+
+		const importedModule = moduleGraph.getModule(dep);
+		let requireExpr = runtimeTemplate.moduleExports({
+			module: importedModule,
+			chunkGraph,
+			request: dep.request,
+			weak: dep.weak,
+			runtimeRequirements
+		});
+		if (importedModule) {
+			const ids = dep.getIds(moduleGraph);
+			const usedImported = moduleGraph
+				.getExportsInfo(importedModule)
+				.getUsedName(ids, runtime);
+			if (usedImported) {
+				const comment = equals(usedImported, ids)
+					? ""
+					: Template.toNormalComment(propertyAccess(ids)) + " ";
+				requireExpr += `${comment}${propertyAccess(usedImported)}`;
+			}
+		}
+
+		switch (type) {
+			case "expression":
+				source.replace(
+					dep.range[0],
+					dep.range[1] - 1,
+					used
+						? `${base}${propertyAccess(used)} = ${requireExpr}`
+						: `/* unused reexport */ ${requireExpr}`
+				);
+				return;
+			case "Object.defineProperty":
+				throw new Error("TODO");
+			default:
+				throw new Error("Unexpected type");
+		}
+	}
+};
+
+module.exports = CommonJsExportRequireDependency;