Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\VarDumper\Caster;
Chris@0: 
Chris@0: use Symfony\Component\VarDumper\Cloner\Stub;
Chris@0: 
Chris@0: /**
Chris@0:  * Represents a list of function arguments.
Chris@0:  *
Chris@0:  * @author Nicolas Grekas <p@tchwork.com>
Chris@0:  */
Chris@0: class ArgsStub extends EnumStub
Chris@0: {
Chris@17:     private static $parameters = [];
Chris@0: 
Chris@0:     public function __construct(array $args, $function, $class)
Chris@0:     {
Chris@0:         list($variadic, $params) = self::getParameters($function, $class);
Chris@0: 
Chris@17:         $values = [];
Chris@0:         foreach ($args as $k => $v) {
Chris@0:             $values[$k] = !is_scalar($v) && !$v instanceof Stub ? new CutStub($v) : $v;
Chris@0:         }
Chris@0:         if (null === $params) {
Chris@0:             parent::__construct($values, false);
Chris@0: 
Chris@0:             return;
Chris@0:         }
Chris@17:         if (\count($values) < \count($params)) {
Chris@17:             $params = \array_slice($params, 0, \count($values));
Chris@17:         } elseif (\count($values) > \count($params)) {
Chris@17:             $values[] = new EnumStub(array_splice($values, \count($params)), false);
Chris@0:             $params[] = $variadic;
Chris@0:         }
Chris@17:         if (['...'] === $params) {
Chris@0:             $this->dumpKeys = false;
Chris@0:             $this->value = $values[0]->value;
Chris@0:         } else {
Chris@0:             $this->value = array_combine($params, $values);
Chris@0:         }
Chris@0:     }
Chris@0: 
Chris@0:     private static function getParameters($function, $class)
Chris@0:     {
Chris@0:         if (isset(self::$parameters[$k = $class.'::'.$function])) {
Chris@0:             return self::$parameters[$k];
Chris@0:         }
Chris@0: 
Chris@0:         try {
Chris@0:             $r = null !== $class ? new \ReflectionMethod($class, $function) : new \ReflectionFunction($function);
Chris@0:         } catch (\ReflectionException $e) {
Chris@17:             return [null, null];
Chris@0:         }
Chris@0: 
Chris@0:         $variadic = '...';
Chris@17:         $params = [];
Chris@0:         foreach ($r->getParameters() as $v) {
Chris@0:             $k = '$'.$v->name;
Chris@0:             if ($v->isPassedByReference()) {
Chris@0:                 $k = '&'.$k;
Chris@0:             }
Chris@0:             if (method_exists($v, 'isVariadic') && $v->isVariadic()) {
Chris@0:                 $variadic .= $k;
Chris@0:             } else {
Chris@0:                 $params[] = $k;
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@17:         return self::$parameters[$k] = [$variadic, $params];
Chris@0:     }
Chris@0: }