source: frontend/node_modules/webpack/lib/WebpackIsIncludedPlugin.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Ivan Kopeykin @vankop
*/

"use strict";

const {
        JAVASCRIPT_MODULE_TYPE_AUTO,
        JAVASCRIPT_MODULE_TYPE_DYNAMIC,
        JAVASCRIPT_MODULE_TYPE_ESM
} = require("./ModuleTypeConstants");
const WebpackIsIncludedDependency = require("./dependencies/WebpackIsIncludedDependency");
const IgnoreErrorModuleFactory = require("./errors/IgnoreErrorModuleFactory");
const {
        toConstantDependency
} = require("./javascript/JavascriptParserHelpers");

/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./Dependency").DependencyLocation} DependencyLocation */
/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
/** @typedef {import("./javascript/JavascriptParser").Range} Range */

const PLUGIN_NAME = "WebpackIsIncludedPlugin";

class WebpackIsIncludedPlugin {
        /**
         * Applies the plugin by registering its hooks on the compiler.
         * @param {Compiler} compiler the compiler instance
         * @returns {void}
         */
        apply(compiler) {
                compiler.hooks.compilation.tap(
                        PLUGIN_NAME,
                        (compilation, { normalModuleFactory }) => {
                                compilation.dependencyFactories.set(
                                        WebpackIsIncludedDependency,
                                        new IgnoreErrorModuleFactory(normalModuleFactory)
                                );
                                compilation.dependencyTemplates.set(
                                        WebpackIsIncludedDependency,
                                        new WebpackIsIncludedDependency.Template()
                                );

                                /**
                                 * Handles the hook callback for this code path.
                                 * @param {JavascriptParser} parser the parser
                                 * @returns {void}
                                 */
                                const handler = (parser) => {
                                        parser.hooks.call
                                                .for("__webpack_is_included__")
                                                .tap(PLUGIN_NAME, (expr) => {
                                                        if (
                                                                expr.type !== "CallExpression" ||
                                                                expr.arguments.length !== 1 ||
                                                                expr.arguments[0].type === "SpreadElement"
                                                        ) {
                                                                return;
                                                        }

                                                        const request = parser.evaluateExpression(expr.arguments[0]);

                                                        if (!request.isString()) return;

                                                        const dep = new WebpackIsIncludedDependency(
                                                                /** @type {string} */ (request.string),
                                                                /** @type {Range} */ (expr.range)
                                                        );
                                                        dep.loc = /** @type {DependencyLocation} */ (expr.loc);
                                                        parser.state.module.addDependency(dep);
                                                        return true;
                                                });
                                        parser.hooks.typeof
                                                .for("__webpack_is_included__")
                                                .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);
                                normalModuleFactory.hooks.parser
                                        .for(JAVASCRIPT_MODULE_TYPE_ESM)
                                        .tap(PLUGIN_NAME, handler);
                        }
                );
        }
}

module.exports = WebpackIsIncludedPlugin;