136 lines
2.7 KiB
TypeScript
136 lines
2.7 KiB
TypeScript
/*
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* Verrückte Turing-Maschinen — A turing complete game
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* Copyright (C) 2016 Christian Fraß <vidofnir@folksprak.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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module lib_fehlermonade
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{
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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export type typ_fehlermonade<typ_wert> = lib_aufruf.typ_komplex<any>;
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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export function erstellen_nichts<typ_wert>
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(
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)
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: typ_fehlermonade<typ_wert>
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{
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return (
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lib_aufruf.einpacken<any>
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(
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"nichts",
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{
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}
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)
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);
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}
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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export function erstellen_schlicht<typ_wert>
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(
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wert : typ_wert
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)
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: typ_fehlermonade<typ_wert>
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{
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return (
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lib_aufruf.einpacken<any>
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(
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"schlicht",
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{
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"wert": wert
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}
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)
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);
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}
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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export function voll<typ_wert>
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(
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fehlermonade : typ_fehlermonade<typ_wert>
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)
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: boolean
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{
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return (
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lib_aufruf.fallunterscheidung<any>
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(
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fehlermonade,
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{
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"nichts": ({}) => false,
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"schlicht": ({"wert": wert}) => true,
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}
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)
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);
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}
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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export function lesen<typ_wert>
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(
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fehlermonade : typ_fehlermonade<typ_wert>
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)
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: typ_wert
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{
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return (
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lib_aufruf.fallunterscheidung<any>
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(
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fehlermonade,
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{
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"nichts": ({}) => {throw (new Error("lesen von nichts"));},
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"schlicht": ({"wert": wert}) => wert,
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}
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)
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);
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}
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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export function fortfuehren<typ_wert1, typ_wert2>
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(
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fehlermonade : typ_fehlermonade<typ_wert1>,
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funktion : (wert1 : typ_wert1)=>typ_fehlermonade<typ_wert2>
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)
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: typ_fehlermonade<typ_wert2>
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{
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return (
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lib_aufruf.fallunterscheidung<any>
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(
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fehlermonade,
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{
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"nichts": ({}) => erstellen_nichts<typ_wert2>(),
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"schlicht": ({"wert": wert1}) => funktion(wert1),
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}
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)
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);
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}
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}
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