/**
* Call a method on a service.
*
* @param Service $service Service to call a method on.
* @param string $methodName Name of the method to call on the service.
* @param array $arguments [optional] Arguments to call the method with. Default: `array()`.
* @param object $instance [optional] Service object instance. Should be passed for all non-singleton services.
* @return mixed
*
* @throws RuntimeException When trying to call a method on a service that hasn't been instantiated yet.
*/
public function callMethod(Service $service, $methodName, array $arguments = array(), $instance = null)
{
if ($instance === null && !$service->isInstantiated()) {
throw new RuntimeException('Cannot call a method of a service that has not been instantiated yet, when trying to call "::' . $methodName . '" on "' . $service->name . '".');
}
$instance = $instance ? $instance : $service->getInstance();
$arguments = $this->argumentsResolver->resolve($arguments);
switch (count($arguments)) {
case 0:
$result = $instance->{$methodName}();
break;
case 1:
$result = $instance->{$methodName}($arguments[0]);
break;
case 2:
$result = $instance->{$methodName}($arguments[0], $arguments[1]);
break;
case 3:
$result = $instance->{$methodName}($arguments[0], $arguments[1], $arguments[2]);
break;
case 4:
$result = $instance->{$methodName}($arguments[0], $arguments[1], $arguments[2], $arguments[3]);
break;
case 5:
$result = $instance->{$methodName}($arguments[0], $arguments[1], $arguments[2], $arguments[3], $arguments[4]);
break;
default:
$result = call_user_func_array(array($instance, $methodName), $arguments);
}
return $result;
}
