import z from "zod" export abstract class NamedError extends Error { abstract schema(): z.core.$ZodType abstract toObject(): { name: string; data: any } static create(name: Name, data: Data) { const schema = z .object({ name: z.literal(name), data, }) .meta({ ref: name, }) const result = class extends NamedError { public static readonly Schema = schema public override readonly name = name as Name constructor( public readonly data: z.input, options?: ErrorOptions, ) { super(name, options) this.name = name } static isInstance(input: any): input is InstanceType { return typeof input === "object" && "name" in input && input.name === name } schema() { return schema } toObject() { return { name: name, data: this.data, } } } Object.defineProperty(result, "name", { value: name }) return result } public static readonly Unknown = NamedError.create( "UnknownError", z.object({ message: z.string(), }), ) }