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

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+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const RequireEnsureDependency = require("./RequireEnsureDependency");
+const RequireEnsureItemDependency = require("./RequireEnsureItemDependency");
+
+const RequireEnsureDependenciesBlockParserPlugin = require("./RequireEnsureDependenciesBlockParserPlugin");
+
+const {
+	JAVASCRIPT_MODULE_TYPE_AUTO,
+	JAVASCRIPT_MODULE_TYPE_DYNAMIC
+} = require("../ModuleTypeConstants");
+const {
+	evaluateToString,
+	toConstantDependency
+} = require("../javascript/JavascriptParserHelpers");
+
+/** @typedef {import("../../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
+/** @typedef {import("../Compiler")} Compiler */
+/** @typedef {import("../javascript/JavascriptParser")} Parser */
+
+const PLUGIN_NAME = "RequireEnsurePlugin";
+
+class RequireEnsurePlugin {
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			PLUGIN_NAME,
+			(compilation, { normalModuleFactory }) => {
+				compilation.dependencyFactories.set(
+					RequireEnsureItemDependency,
+					normalModuleFactory
+				);
+				compilation.dependencyTemplates.set(
+					RequireEnsureItemDependency,
+					new RequireEnsureItemDependency.Template()
+				);
+
+				compilation.dependencyTemplates.set(
+					RequireEnsureDependency,
+					new RequireEnsureDependency.Template()
+				);
+
+				/**
+				 * @param {Parser} parser parser parser
+				 * @param {JavascriptParserOptions} parserOptions parserOptions
+				 * @returns {void}
+				 */
+				const handler = (parser, parserOptions) => {
+					if (
+						parserOptions.requireEnsure !== undefined &&
+						!parserOptions.requireEnsure
+					)
+						return;
+
+					new RequireEnsureDependenciesBlockParserPlugin().apply(parser);
+					parser.hooks.evaluateTypeof
+						.for("require.ensure")
+						.tap(PLUGIN_NAME, evaluateToString("function"));
+					parser.hooks.typeof
+						.for("require.ensure")
+						.tap(
+							PLUGIN_NAME,
+							toConstantDependency(parser, JSON.stringify("function"))
+						);
+				};
+
+				normalModuleFactory.hooks.parser
+					.for(JAVASCRIPT_MODULE_TYPE_AUTO)
+					.tap(PLUGIN_NAME, handler);
+				normalModuleFactory.hooks.parser
+					.for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
+					.tap(PLUGIN_NAME, handler);
+			}
+		);
+	}
+}
+module.exports = RequireEnsurePlugin;