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<?php
namespace SpareParts\Enum\Converter;
use SpareParts\Enum\Enum;
/**
* Converts Enum to lowercase string.
*
* Usage:
* $converter = new LowercaseConverter(WindowState::class);
* $converter->toEnum('closed') // returns WindowState::CLOSED() instance
* $converter->fromEnum(WindowState::CLOSED()) // returns 'closed'
*/
class LowercaseConverter implements IConverter
{
* @var string
protected $enumClass;
* @param string $enumClass
* @throws ConverterSetupException
public function __construct(string $enumClass)
if (!is_subclass_of($enumClass, Enum::class)) {
throw new ConverterSetupException("Class ${enumClass} is not a valid Enum. (doesnt extend Enum class)");
}
$this->enumClass = $enumClass;
* @param mixed $value
* @return Enum
public function toEnum($value): Enum
return call_user_func_array([$this->enumClass, 'instance'], [strtoupper($value)]);
* @param Enum $enum
* @return string
* @throws UnableToConvertException
public function fromEnum(Enum $enum)
if (!($enum instanceof $this->enumClass)) {
throw new UnableToConvertException(sprintf('Enum %s is not of type %s.', get_class($enum), $this->enumClass));
return strtolower((string) $enum);
SpareParts /
Enum
