source: frontend/node_modules/webpack/lib/serialization/MapObjectSerializer.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
*/

"use strict";

/** @typedef {import("./ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("./ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */

class MapObjectSerializer {
        /**
         * Serializes this instance into the provided serializer context.
         * @template K, V
         * @param {Map<K, V>} obj map
         * @param {ObjectSerializerContext} context context
         */
        serialize(obj, context) {
                context.write(obj.size);
                for (const key of obj.keys()) {
                        context.write(key);
                }
                for (const value of obj.values()) {
                        context.write(value);
                }
        }

        /**
         * Restores this instance from the provided deserializer context.
         * @template K, V
         * @param {ObjectDeserializerContext} context context
         * @returns {Map<K, V>} map
         */
        deserialize(context) {
                /** @type {number} */
                const size = context.read();
                /** @type {Map<K, V>} */
                const map = new Map();
                /** @type {K[]} */
                const keys = [];
                for (let i = 0; i < size; i++) {
                        keys.push(context.read());
                }
                for (let i = 0; i < size; i++) {
                        map.set(keys[i], context.read());
                }
                return map;
        }
}

module.exports = MapObjectSerializer;