Updated the files.

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

@@ -0,0 +1,207 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const ConcatenationScope = require("../ConcatenationScope");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const makeSerializable = require("../util/makeSerializable");
+const propertyAccess = require("../util/propertyAccess");
+const HarmonyExportInitFragment = require("./HarmonyExportInitFragment");
+const NullDependency = require("./NullDependency");
+
+/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
+/** @typedef {import("../Dependency")} Dependency */
+/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
+/** @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 */
+
+class HarmonyExportExpressionDependency extends NullDependency {
+	/**
+	 * @param {Range} range range
+	 * @param {Range} rangeStatement range statement
+	 * @param {string} prefix prefix
+	 * @param {string | { range: Range, prefix: string, suffix: string }} [declarationId] declaration id
+	 */
+	constructor(range, rangeStatement, prefix, declarationId) {
+		super();
+		this.range = range;
+		this.rangeStatement = rangeStatement;
+		this.prefix = prefix;
+		this.declarationId = declarationId;
+	}
+
+	get type() {
+		return "harmony export expression";
+	}
+
+	/**
+	 * Returns the exported names
+	 * @param {ModuleGraph} moduleGraph module graph
+	 * @returns {ExportsSpec | undefined} export names
+	 */
+	getExports(moduleGraph) {
+		return {
+			exports: ["default"],
+			priority: 1,
+			terminalBinding: true,
+			dependencies: undefined
+		};
+	}
+
+	/**
+	 * @param {ModuleGraph} moduleGraph the module graph
+	 * @returns {ConnectionState} how this dependency connects the module to referencing modules
+	 */
+	getModuleEvaluationSideEffectsState(moduleGraph) {
+		// The expression/declaration is already covered by SideEffectsFlagPlugin
+		return false;
+	}
+
+	/**
+	 * @param {ObjectSerializerContext} context context
+	 */
+	serialize(context) {
+		const { write } = context;
+		write(this.range);
+		write(this.rangeStatement);
+		write(this.prefix);
+		write(this.declarationId);
+		super.serialize(context);
+	}
+
+	/**
+	 * @param {ObjectDeserializerContext} context context
+	 */
+	deserialize(context) {
+		const { read } = context;
+		this.range = read();
+		this.rangeStatement = read();
+		this.prefix = read();
+		this.declarationId = read();
+		super.deserialize(context);
+	}
+}
+
+makeSerializable(
+	HarmonyExportExpressionDependency,
+	"webpack/lib/dependencies/HarmonyExportExpressionDependency"
+);
+
+HarmonyExportExpressionDependency.Template = class HarmonyExportDependencyTemplate 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,
+			runtimeTemplate,
+			runtimeRequirements,
+			initFragments,
+			runtime,
+			concatenationScope
+		}
+	) {
+		const dep = /** @type {HarmonyExportExpressionDependency} */ (dependency);
+		const { declarationId } = dep;
+		const exportsName = module.exportsArgument;
+		if (declarationId) {
+			let name;
+			if (typeof declarationId === "string") {
+				name = declarationId;
+			} else {
+				name = ConcatenationScope.DEFAULT_EXPORT;
+				source.replace(
+					declarationId.range[0],
+					declarationId.range[1] - 1,
+					`${declarationId.prefix}${name}${declarationId.suffix}`
+				);
+			}
+
+			if (concatenationScope) {
+				concatenationScope.registerExport("default", name);
+			} else {
+				const used = moduleGraph
+					.getExportsInfo(module)
+					.getUsedName("default", runtime);
+				if (used) {
+					const map = new Map();
+					map.set(used, `/* export default binding */ ${name}`);
+					initFragments.push(new HarmonyExportInitFragment(exportsName, map));
+				}
+			}
+
+			source.replace(
+				dep.rangeStatement[0],
+				dep.range[0] - 1,
+				`/* harmony default export */ ${dep.prefix}`
+			);
+		} else {
+			/** @type {string} */
+			let content;
+			const name = ConcatenationScope.DEFAULT_EXPORT;
+			if (runtimeTemplate.supportsConst()) {
+				content = `/* harmony default export */ const ${name} = `;
+				if (concatenationScope) {
+					concatenationScope.registerExport("default", name);
+				} else {
+					const used = moduleGraph
+						.getExportsInfo(module)
+						.getUsedName("default", runtime);
+					if (used) {
+						runtimeRequirements.add(RuntimeGlobals.exports);
+						const map = new Map();
+						map.set(used, name);
+						initFragments.push(new HarmonyExportInitFragment(exportsName, map));
+					} else {
+						content = `/* unused harmony default export */ var ${name} = `;
+					}
+				}
+			} else if (concatenationScope) {
+				content = `/* harmony default export */ var ${name} = `;
+				concatenationScope.registerExport("default", name);
+			} else {
+				const used = moduleGraph
+					.getExportsInfo(module)
+					.getUsedName("default", runtime);
+				if (used) {
+					runtimeRequirements.add(RuntimeGlobals.exports);
+					// This is a little bit incorrect as TDZ is not correct, but we can't use const.
+					content = `/* harmony default export */ ${exportsName}${propertyAccess(
+						typeof used === "string" ? [used] : used
+					)} = `;
+				} else {
+					content = `/* unused harmony default export */ var ${name} = `;
+				}
+			}
+
+			if (dep.range) {
+				source.replace(
+					dep.rangeStatement[0],
+					dep.range[0] - 1,
+					content + "(" + dep.prefix
+				);
+				source.replace(dep.range[1], dep.rangeStatement[1] - 0.5, ");");
+				return;
+			}
+
+			source.replace(dep.rangeStatement[0], dep.rangeStatement[1] - 1, content);
+		}
+	}
+};
+
+module.exports = HarmonyExportExpressionDependency;