Enum

Enumeration class. Each enum propertiy has the properties "ordinal", "name" and "text".

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/391854/746956/Enum.js

Du musst eine Erweiterung wie Tampermonkey, Greasemonkey oder Violentmonkey installieren, um dieses Skript zu installieren.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

Sie müssten eine Skript Manager Erweiterung installieren damit sie dieses Skript installieren können

(Ich habe schon ein Skript Manager, Lass mich es installieren!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Enum
// @namespace    hoehleg.userscripts.private
// @version      0.3
// @description  Enumeration class. Each enum propertiy has the properties "ordinal", "name" and "text".
// @author       Gerrit Höhle
// @grant        none
// ==/UserScript==

/* jslint esnext: true */
const Enum = class EnumBase {

    constructor({ name, ordinal, text } = {}) {
        if (new.target === EnumBase) {
            throw TypeError("Instantiation of abstract enum class");
        }

        if (typeof text !== "undefined") {
            text = String(text);
        }

        Object.assign(this, {
            get ordinal() { return ordinal; },
            get name() { return name; },
            get text() { return text; }
        });
    }

    valueOf() { 
        return this.ordinal; 
    }

    toString() { 
        return (typeof this.text === "undefined") ? this.name : this.text;
    }

    static init(enumDef = [], firstOrdinal = 0, ordinalSupplier = previousOrdinal => previousOrdinal + 1) {
        if (Object.isFrozen(this)) {
            throw TypeError("Reinitialization of finalized enum class");
        }

        let ordinal;
        const ordinals = [];
        for (let enumDefObj of (Array.isArray(enumDef) ? enumDef : [ enumDef ])) {
            if (typeof enumDefObj !== 'object') {
                enumDefObj = { [enumDefObj]: undefined };
            }
            for (let [name, text] of Object.entries(enumDefObj)) {
                ordinal = Number.parseInt((typeof ordinal === "undefined") ? firstOrdinal : ordinalSupplier(ordinal));
                console.assert(typeof this[name] === "undefined", `duplicate enum [${name}]`);
                console.assert(typeof this[ordinal] === "undefined", `duplicate ordinal [${ordinal}] for enum [${name}]`);

                this[name] = new this({ ordinal, name, text });
                Object.defineProperty(this, ordinal, { 
                    value: this[name] 
                });

                ordinals.push(ordinal);
            }
        }

        const enums = ordinals.sort().map(ordinal => this[ordinal]);
        Object.defineProperty(this, Symbol.iterator, { value: () => enums[Symbol.iterator]() });

        return Object.freeze(this);
    }
};