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