webpack/lib/serialization/ErrorObjectSerializer.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 */

/** @typedef {Error & { cause?: unknown }} ErrorWithCause */

class ErrorObjectSerializer {
	/**
	 * Creates an instance of ErrorObjectSerializer.
	 * @param {ErrorConstructor | EvalErrorConstructor | RangeErrorConstructor | ReferenceErrorConstructor | SyntaxErrorConstructor | TypeErrorConstructor} Type error type
	 */
	constructor(Type) {
		this.Type = Type;
	}

	/**
	 * Serializes this instance into the provided serializer context.
	 * @param {Error | EvalError | RangeError | ReferenceError | SyntaxError | TypeError} obj error
	 * @param {ObjectSerializerContext} context context
	 */
	serialize(obj, context) {
		context.write(obj.message);
		context.write(obj.stack);
		context.write(
			/** @type {ErrorWithCause} */
			(obj).cause
		);
	}

	/**
	 * Restores this instance from the provided deserializer context.
	 * @param {ObjectDeserializerContext} context context
	 * @returns {Error | EvalError | RangeError | ReferenceError | SyntaxError | TypeError} error
	 */
	deserialize(context) {
		const err = new this.Type();

		err.message = context.read();
		err.stack = context.read();
		/** @type {ErrorWithCause} */
		(err).cause = context.read();

		return err;
	}
}

module.exports = ErrorObjectSerializer;