source: frontend/node_modules/webpack/lib/dependencies/RequireHeaderDependency.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const RuntimeGlobals = require("../RuntimeGlobals");
const makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");

/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */

class RequireHeaderDependency extends NullDependency {
        /**
         * Creates an instance of RequireHeaderDependency.
         * @param {Range} range range
         */
        constructor(range) {
                super();
                if (!Array.isArray(range)) throw new Error("range must be valid");
                this.range = range;
        }

        /**
         * Serializes this instance into the provided serializer context.
         * @param {ObjectSerializerContext} context context
         */
        serialize(context) {
                const { write } = context;
                write(this.range);
                super.serialize(context);
        }

        /**
         * Restores this instance from the provided deserializer context.
         * @param {ObjectDeserializerContext} context context
         * @returns {RequireHeaderDependency} RequireHeaderDependency
         */
        static deserialize(context) {
                const obj = new RequireHeaderDependency(context.read());
                obj.deserialize(context);
                return obj;
        }
}

makeSerializable(
        RequireHeaderDependency,
        "webpack/lib/dependencies/RequireHeaderDependency"
);

RequireHeaderDependency.Template = class RequireHeaderDependencyTemplate extends (
        NullDependency.Template
) {
        /**
         * Applies the plugin by registering its hooks on the compiler.
         * @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, { runtimeRequirements }) {
                const dep = /** @type {RequireHeaderDependency} */ (dependency);
                runtimeRequirements.add(RuntimeGlobals.require);
                source.replace(dep.range[0], dep.range[1] - 1, RuntimeGlobals.require);
        }
};

module.exports = RequireHeaderDependency;