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1 files changed, 74 insertions, 0 deletions

diff --git a/node_modules/webpack/lib/dependencies/RequireEnsurePlugin.js b/node_modules/webpack/lib/dependencies/RequireEnsurePlugin.js
new file mode 100644
index 00000000..c818e91b
--- /dev/null
+++ b/node_modules/webpack/lib/dependencies/RequireEnsurePlugin.js
@@ -0,0 +1,74 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const RequireEnsureItemDependency = require("./RequireEnsureItemDependency");
+const RequireEnsureDependency = require("./RequireEnsureDependency");
+
+const NullFactory = require("../NullFactory");
+
+const RequireEnsureDependenciesBlockParserPlugin = require("./RequireEnsureDependenciesBlockParserPlugin");
+
+const ParserHelpers = require("../ParserHelpers");
+
+class RequireEnsurePlugin {
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			"RequireEnsurePlugin",
+			(compilation, { normalModuleFactory }) => {
+				compilation.dependencyFactories.set(
+					RequireEnsureItemDependency,
+					normalModuleFactory
+				);
+				compilation.dependencyTemplates.set(
+					RequireEnsureItemDependency,
+					new RequireEnsureItemDependency.Template()
+				);
+
+				compilation.dependencyFactories.set(
+					RequireEnsureDependency,
+					new NullFactory()
+				);
+				compilation.dependencyTemplates.set(
+					RequireEnsureDependency,
+					new RequireEnsureDependency.Template()
+				);
+
+				const handler = (parser, parserOptions) => {
+					if (
+						parserOptions.requireEnsure !== undefined &&
+						!parserOptions.requireEnsure
+					)
+						return;
+
+					new RequireEnsureDependenciesBlockParserPlugin().apply(parser);
+					parser.hooks.evaluateTypeof
+						.for("require.ensure")
+						.tap(
+							"RequireEnsurePlugin",
+							ParserHelpers.evaluateToString("function")
+						);
+					parser.hooks.typeof
+						.for("require.ensure")
+						.tap(
+							"RequireEnsurePlugin",
+							ParserHelpers.toConstantDependency(
+								parser,
+								JSON.stringify("function")
+							)
+						);
+				};
+
+				normalModuleFactory.hooks.parser
+					.for("javascript/auto")
+					.tap("RequireEnsurePlugin", handler);
+				normalModuleFactory.hooks.parser
+					.for("javascript/dynamic")
+					.tap("RequireEnsurePlugin", handler);
+			}
+		);
+	}
+}
+module.exports = RequireEnsurePlugin;