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<?php
declare(strict_types=1);
namespace Ivory\Value;
use Ivory\Exception\NotImplementedException;
/**
* Base for type-strict composite values.
*
* Specializes the general {@link Composite} class such that:
* - the constructor expects a map of values of all attributes the composite defines;
* - the attribute getter emits a warning upon accessing an undefined attribute.
*/
abstract class StrictComposite extends Composite
{
public static function fromMap(array $valueMap): Composite
throw new NotImplementedException(
__METHOD__ . ' must be re-implemented by ' . static::class . ' - base ' . Composite::class .
' implementation cannot be used'
);
}
public function __get($name)
$val = parent::__get($name);
if ($val === null && !array_key_exists($name, $this->toMap())) {
trigger_error(
sprintf('Accessing an undefined attribute "%s" of %s', $name, get_class($this)),
E_USER_WARNING
return $val;
ondrej-bouda /
ivory
