webpack/lib/serialization/Serializer.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support 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";

class Serializer {
	constructor(middlewares, context) {
		this.serializeMiddlewares = middlewares.slice();
		this.deserializeMiddlewares = middlewares.slice().reverse();
		this.context = context;
	}

	serialize(obj, context) {
		const ctx = { ...context, ...this.context };
		let current = obj;
		for (const middleware of this.serializeMiddlewares) {
			if (current instanceof Promise) {
				current = current.then(
					data => data && middleware.serialize(data, context)
				);
			} else if (current) {
				try {
					current = middleware.serialize(current, ctx);
				} catch (err) {
					current = Promise.reject(err);
				}
			} else break;
		}
		return current;
	}

	deserialize(value, context) {
		const ctx = { ...context, ...this.context };
		/** @type {any} */
		let current = value;
		for (const middleware of this.deserializeMiddlewares) {
			if (current instanceof Promise) {
				current = current.then(data => middleware.deserialize(data, context));
			} else {
				current = middleware.deserialize(current, ctx);
			}
		}
		return current;
	}
}

module.exports = Serializer;