Viewing file:  ReflectorItem.class.php (3.39 KB) -rw-r--r--
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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Holds the PMA\DI\ReflectorItem class
*
* @package PMA
*/
namespace PMADI;
require_once 'libraries/di/Item.int.php';
/**
* Reflector manager
*
* @package PMA\DI
*/
abstract class ReflectorItem implements Item
{
/** @var Container */
private $_container;
/** @var \Reflector */
private $_reflector;
/**
* Constructor
*
* @param Container $container Container
* @param mixed $definition Definition
*/
public function __construct(Container $container, $definition)
{
$this->_container = $container;
$this->_reflector = self::_resolveReflector($definition);
}
/**
* Invoke the reflector with given parameters
*
* @param array $params Parameters
* @return mixed
*/
protected function invoke($params = array())
{
$args = array();
$reflector = $this->_reflector;
if ($reflector instanceof ReflectionClass) {
$constructor = $reflector->getConstructor();
if (isset($constructor)) {
$args = $this->_resolveArgs(
$constructor->getParameters(),
$params
);
}
return $reflector->newInstanceArgs($args);
}
/** @var \ReflectionFunctionAbstract $reflector */
$args = $this->_resolveArgs(
$reflector->getParameters(),
$params
);
if ($reflector instanceof ReflectionMethod) {
/** @var \ReflectionMethod $reflector */
return $reflector->invokeArgs(null, $args);
}
/** @var \ReflectionFunction $reflector */
return $reflector->invokeArgs($args);
}
/**
* Getting required arguments with given parameters
*
* @param \ReflectionParameter[] $required Arguments
* @param array $params Parameters
*
*@return array
*/
private function _resolveArgs($required, $params = array())
{
$args = array();
foreach ($required as $param) {
$name = $param->getName();
$type = $param->getClass();
if (isset($type)) {
$type = $type->getName();
}
if (isset($params[$name])) {
$args[] = $params[$name];
} elseif (is_string($type) && isset($params[$type])) {
$args[] = $params[$type];
} else {
$content = $this->_container->get($name);
if (isset($content)) {
$args[] = $content;
} elseif (is_string($type)) {
$args[] = $this->_container->get($type);
} else {
$args[] = null;
}
}
}
return $args;
}
/**
* Resolve the reflection
*
* @param mixed $definition Definition
*
* @return \Reflector
*/
private static function _resolveReflector($definition)
{
if (function_exists($definition)) {
return new ReflectionFunction($definition);
}
if (is_string($definition)) {
$definition = explode('::', $definition);
}
if (!isset($definition[1])) {
return new ReflectionClass($definition[0]);
}
return new ReflectionMethod($definition[0], $definition[1]);
}
}
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