| 1: | <?php |
| 2: | |
| 3: | namespace Teto\Object; |
| 4: | |
| 5: | use function is_numeric; |
| 6: | use function preg_match; |
| 7: | use function property_exists; |
| 8: | |
| 9: | /** |
| 10: | * Type Definition syntax |
| 11: | * |
| 12: | * @author USAMI Kenta <tadsan@zonu.me> |
| 13: | * @copyright 2016 Baguette HQ |
| 14: | * @license http://www.apache.org/licenses/LICENSE-2.0 |
| 15: | * |
| 16: | * @property-read string $expected |
| 17: | * @property-read bool $is_nullable |
| 18: | * @property-read bool $is_array |
| 19: | * @property-read int|null $len |
| 20: | */ |
| 21: | final class TypeDefinition |
| 22: | { |
| 23: | /** |
| 24: | * @var string |
| 25: | */ |
| 26: | private $expected; |
| 27: | |
| 28: | /** |
| 29: | * @var bool |
| 30: | */ |
| 31: | private $is_nullable; |
| 32: | |
| 33: | /** |
| 34: | * @var bool |
| 35: | */ |
| 36: | private $is_array; |
| 37: | |
| 38: | /** |
| 39: | * @var int|null |
| 40: | */ |
| 41: | private $len; |
| 42: | |
| 43: | public function __construct() |
| 44: | { |
| 45: | } |
| 46: | |
| 47: | /** |
| 48: | * @param string $def Type definition |
| 49: | * @return TypeDefinition |
| 50: | */ |
| 51: | public static function parse($def) |
| 52: | { |
| 53: | $type = new TypeDefinition(); |
| 54: | |
| 55: | preg_match(self::RE_PROPERTY, $def, $matches); |
| 56: | |
| 57: | if (empty($matches[2])) { |
| 58: | throw new \LogicException(); |
| 59: | } |
| 60: | $type->is_nullable = !empty($matches[1]); |
| 61: | $type->expected = $matches[2]; |
| 62: | $type->is_array = !empty($matches[3]); |
| 63: | if (isset($matches[4]) && is_numeric($matches[4])) { |
| 64: | $type->len = (int) $matches[4]; |
| 65: | } |
| 66: | |
| 67: | return $type; |
| 68: | } |
| 69: | |
| 70: | public const RE_PROPERTY = '/^(\??)([^\s\[\]?]+)((?:\[(\d*)\])?)$/'; |
| 71: | |
| 72: | /** |
| 73: | * @throws \OutOfRangeException |
| 74: | */ |
| 75: | public function __get($name) |
| 76: | { |
| 77: | if (property_exists($this, $name)) { |
| 78: | return $this->$name; |
| 79: | } |
| 80: | |
| 81: | throw new \OutOfRangeException(); |
| 82: | } |
| 83: | } |
| 84: |