webpack/lib/serialization/MapObjectSerializer.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

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

"use strict";

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

class MapObjectSerializer {
	/**
	 * @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);
		}
	}
	/**
	 * @template K, V
	 * @param {ObjectDeserializerContext} context context
	 * @returns {Map<K, V>} map
	 */
	deserialize(context) {
		/** @type {number} */
		let 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;