OptionalParametersFilter.php in Zircon Profile 8

Namespace

Zend\Hydrator\Filter

File

vendor/zendframework/zend-hydrator/src/Filter/OptionalParametersFilter.php

<?php

/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link           http://github.com/zendframework/zf2 for the canonical source repository
 * @copyright      Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license        http://framework.zend.com/license/new-bsd New BSD License
 */
namespace Zend\Hydrator\Filter;

use ReflectionException;
use ReflectionMethod;
use ReflectionParameter;
use Zend\Hydrator\Exception\InvalidArgumentException;

/**
 * Filter that includes methods which have no parameters or only optional parameters
 */
class OptionalParametersFilter implements FilterInterface {

  /**
   * Map of methods already analyzed
   * by {@see OptionalParametersFilter::filter()},
   * cached for performance reasons
   *
   * @var bool[]
   */
  protected static $propertiesCache = [];

  /**
   * {@inheritDoc}
   */
  public function filter($property) {
    if (isset(static::$propertiesCache[$property])) {
      return static::$propertiesCache[$property];
    }
    try {
      $reflectionMethod = new ReflectionMethod($property);
    } catch (ReflectionException $exception) {
      throw new InvalidArgumentException(sprintf('Method %s doesn\'t exist', $property));
    }
    $mandatoryParameters = array_filter($reflectionMethod
      ->getParameters(), function (ReflectionParameter $parameter) {
      return !$parameter
        ->isOptional();
    });
    return static::$propertiesCache[$property] = empty($mandatoryParameters);
  }

}

Classes

Name	Description
OptionalParametersFilter	Filter that includes methods which have no parameters or only optional parameters