EnumFromRawStateMap.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\data\bedrock\block\convert\property;
 
use function spl_object_id;
 
class EnumFromRawStateMap implements StateMap{
    private array $enumToValue = [];
 
    private array $valueToEnum = [];
 
    public function __construct(
        string $class,
        \Closure $mapper,
        ?\Closure $aliasMapper = null
    ){
        foreach($class::cases() as $case){
            $int = $mapper($case);
            $this->valueToEnum[$int] = $case;
            $this->enumToValue[spl_object_id($case)] = $int;
 
            if($aliasMapper !== null){
                $aliases = $aliasMapper($case);
                foreach($aliases as $alias){
                    $this->valueToEnum[$alias] = $case;
                }
            }
        }
    }
 
    public static function string(string $class, \Closure $mapper, ?\Closure $aliasMapper = null) : self{ return new self($class, $mapper, $aliasMapper); }
 
    public static function int(string $class, \Closure $mapper, ?\Closure $aliasMapper = null) : self{ return new self($class, $mapper, $aliasMapper); }
 
    public function getRawToValueMap() : array{
        return $this->valueToEnum;
    }
 
    public function valueToRaw(mixed $value) : int|string{
        return $this->enumToValue[spl_object_id($value)];
    }
 
    public function rawToValue(int|string $raw) : ?\UnitEnum{
        return $this->valueToEnum[$raw] ?? null;
    }
 
    public function printableValue(mixed $value) : string{
        return $value::class . "::" . $value->name;
    }
}