110 lines
3.0 KiB
PHP
110 lines
3.0 KiB
PHP
<?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\HttpKernel\ControllerMetadata;
|
|
|
|
/**
|
|
* Builds {@see ArgumentMetadata} objects based on the given Controller.
|
|
*
|
|
* @author Iltar van der Berg <kjarli@gmail.com>
|
|
*/
|
|
final class ArgumentMetadataFactory implements ArgumentMetadataFactoryInterface
|
|
{
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function createArgumentMetadata($controller)
|
|
{
|
|
$arguments = array();
|
|
|
|
if (is_array($controller)) {
|
|
$reflection = new \ReflectionMethod($controller[0], $controller[1]);
|
|
} elseif (is_object($controller) && !$controller instanceof \Closure) {
|
|
$reflection = (new \ReflectionObject($controller))->getMethod('__invoke');
|
|
} else {
|
|
$reflection = new \ReflectionFunction($controller);
|
|
}
|
|
|
|
foreach ($reflection->getParameters() as $param) {
|
|
$arguments[] = new ArgumentMetadata($param->getName(), $this->getType($param), $this->isVariadic($param), $this->hasDefaulValue($param), $this->getDefaulValue($param));
|
|
}
|
|
|
|
return $arguments;
|
|
}
|
|
|
|
/**
|
|
* Returns whether an argument is variadic.
|
|
*
|
|
* @param \ReflectionParameter $parameter
|
|
*
|
|
* @return bool
|
|
*/
|
|
private function isVariadic(\ReflectionParameter $parameter)
|
|
{
|
|
return PHP_VERSION_ID >= 50600 && $parameter->isVariadic();
|
|
}
|
|
|
|
/**
|
|
* Determines whether an argument has a default value.
|
|
*
|
|
* @param \ReflectionParameter $parameter
|
|
*
|
|
* @return bool
|
|
*/
|
|
private function hasDefaulValue(\ReflectionParameter $parameter)
|
|
{
|
|
return $parameter->isDefaultValueAvailable();
|
|
}
|
|
|
|
/**
|
|
* Returns a default value if available.
|
|
*
|
|
* @param \ReflectionParameter $parameter
|
|
*
|
|
* @return mixed|null
|
|
*/
|
|
private function getDefaulValue(\ReflectionParameter $parameter)
|
|
{
|
|
return $this->hasDefaulValue($parameter) ? $parameter->getDefaultValue() : null;
|
|
}
|
|
|
|
/**
|
|
* Returns an associated type to the given parameter if available.
|
|
*
|
|
* @param \ReflectionParameter $parameter
|
|
*
|
|
* @return null|string
|
|
*/
|
|
private function getType(\ReflectionParameter $parameter)
|
|
{
|
|
if (PHP_VERSION_ID >= 70000) {
|
|
return $parameter->hasType() ? (string) $parameter->getType() : null;
|
|
}
|
|
|
|
if ($parameter->isArray()) {
|
|
return 'array';
|
|
}
|
|
|
|
if ($parameter->isCallable()) {
|
|
return 'callable';
|
|
}
|
|
|
|
try {
|
|
$refClass = $parameter->getClass();
|
|
} catch (\ReflectionException $e) {
|
|
// mandatory; extract it from the exception message
|
|
return str_replace(['Class ', ' does not exist'], '', $e->getMessage());
|
|
}
|
|
|
|
return $refClass ? $refClass->getName() : null;
|
|
}
|
|
}
|