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<?php |
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namespace Nasyrov\Laravel\Enums; |
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use BadMethodCallException; |
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use ReflectionClass; |
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use UnexpectedValueException; |
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abstract class Enum |
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{ |
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/** |
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* The enum value. |
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* |
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* @var mixed |
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*/ |
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protected $value; |
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/** |
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* The enum constants. |
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* |
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* @var array |
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*/ |
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protected static $constants = []; |
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/** |
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* Create a new enum instance. |
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* |
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* @param mixed $value |
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*/ |
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public function __construct($value) |
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{ |
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if (!static::constants()->containsStrict($value)) { |
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throw new UnexpectedValueException(sprintf( |
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'Value `%s` is not part of the enum %s', |
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$value, |
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static::class |
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)); |
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} |
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$this->value = $value; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return (string)$this->value; |
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} |
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/** |
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* Get the enum key. |
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* |
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* @return mixed |
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*/ |
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public function getKey() |
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{ |
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return static::constants()->search($this->value, true); |
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} |
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/** |
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* Get the enum value. |
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* |
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* @return mixed |
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*/ |
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public function getValue() |
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{ |
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return $this->value; |
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} |
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/** |
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* Get the enum keys. |
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* |
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* @return array |
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*/ |
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public static function keys() |
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{ |
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return static::constants() |
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->keys() |
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->all(); |
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} |
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/** |
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* Get the enum values. |
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* |
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* @return array |
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*/ |
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public static function values() |
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{ |
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return static::constants() |
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->map(function ($value) { |
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return new static($value); |
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}) |
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->all(); |
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} |
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/** |
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* Get the enum constants. |
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* |
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* @return \Illuminate\Support\Collection |
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*/ |
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public static function constants() |
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{ |
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if (!isset(static::$constants[static::class])) { |
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static::$constants[static::class] = collect( |
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(new ReflectionClass(static::class))->getConstants() |
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); |
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} |
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return static::$constants[static::class]; |
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} |
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/** |
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* Returns a new enum instance when called statically. |
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* |
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* @param string $name |
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* @param array $arguments |
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* |
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* @return static |
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*/ |
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public static function __callStatic($name, array $arguments) |
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{ |
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if (static::constants()->has($name)) { |
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return new static(static::constants()->get($name)); |
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} |
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3 |
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throw new BadMethodCallException(sprintf( |
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'No static method or enum constant `%s` in class %s', |
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$name, |
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3 |
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static::class |
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1 |
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)); |
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} |
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} |
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134
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|
nasyrov /
laravel-enums
