59 lines
1.7 KiB
TypeScript
59 lines
1.7 KiB
TypeScript
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/*
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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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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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type typ_komplex<typ_angaben> = {art : string; angaben ?: typ_angaben;};
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/**
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* @author kcf <vidofnir@folksprak.org>
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*/
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function fallunterscheidung<typ_ergebnis>
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(
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komplex : typ_komplex<any>,
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faelle : {[art : string] : (angaben ?: any)=>typ_ergebnis},
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ersatz : schnittstelle_fehlermonade<(komplex : typ_komplex<any>)=>typ_ergebnis> = (new klasse_nichts<(komplex : typ_komplex<any>)=>typ_ergebnis>())
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)
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: typ_ergebnis
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{
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if (komplex.art in faelle)
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{
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let funktion : (angaben ?: any)=>typ_ergebnis = faelle[komplex.art];
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let ergebnis : typ_ergebnis = funktion(komplex.angaben);
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return ergebnis;
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}
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else
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{
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let meldung : string = ("unbehandelte Art '" + komplex.art + "'");
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console.warn(meldung);
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if (ersatz.ist_schlicht())
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{
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let ergebnis : typ_ergebnis = ersatz.lesen()(komplex);
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return ergebnis;
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}
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else
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{
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throw (new Error("unbehandelt"));
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}
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}
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}
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