настройка webpack

node_modules/webpack/lib/ProvidePlugin.js

@@ -0,0 +1,86 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const ParserHelpers = require("./ParserHelpers");
+const ConstDependency = require("./dependencies/ConstDependency");
+
+const NullFactory = require("./NullFactory");
+
+class ProvidePlugin {
+	constructor(definitions) {
+		this.definitions = definitions;
+	}
+
+	apply(compiler) {
+		const definitions = this.definitions;
+		compiler.hooks.compilation.tap(
+			"ProvidePlugin",
+			(compilation, { normalModuleFactory }) => {
+				compilation.dependencyFactories.set(ConstDependency, new NullFactory());
+				compilation.dependencyTemplates.set(
+					ConstDependency,
+					new ConstDependency.Template()
+				);
+				const handler = (parser, parserOptions) => {
+					Object.keys(definitions).forEach(name => {
+						var request = [].concat(definitions[name]);
+						var splittedName = name.split(".");
+						if (splittedName.length > 0) {
+							splittedName.slice(1).forEach((_, i) => {
+								const name = splittedName.slice(0, i + 1).join(".");
+								parser.hooks.canRename
+									.for(name)
+									.tap("ProvidePlugin", ParserHelpers.approve);
+							});
+						}
+						parser.hooks.expression.for(name).tap("ProvidePlugin", expr => {
+							let nameIdentifier = name;
+							const scopedName = name.includes(".");
+							let expression = `require(${JSON.stringify(request[0])})`;
+							if (scopedName) {
+								nameIdentifier = `__webpack_provided_${name.replace(
+									/\./g,
+									"_dot_"
+								)}`;
+							}
+							if (request.length > 1) {
+								expression += request
+									.slice(1)
+									.map(r => `[${JSON.stringify(r)}]`)
+									.join("");
+							}
+							if (
+								!ParserHelpers.addParsedVariableToModule(
+									parser,
+									nameIdentifier,
+									expression
+								)
+							) {
+								return false;
+							}
+							if (scopedName) {
+								ParserHelpers.toConstantDependency(
+									parser,
+									nameIdentifier
+								)(expr);
+							}
+							return true;
+						});
+					});
+				};
+				normalModuleFactory.hooks.parser
+					.for("javascript/auto")
+					.tap("ProvidePlugin", handler);
+				normalModuleFactory.hooks.parser
+					.for("javascript/dynamic")
+					.tap("ProvidePlugin", handler);
+
+				// Disable ProvidePlugin for javascript/esm, see https://github.com/webpack/webpack/issues/7032
+			}
+		);
+	}
+}
+module.exports = ProvidePlugin;