private function write_interface_delegate($class, $variable_name, $interface_name)
{
$ref = new \ReflectionClass($interface_name);
if (!$ref->isInterface()) {
$this->error("can't delegate \${$variable_name} to {$interface_name} - not an interface");
}
foreach ($ref->getMethods() as $method) {
$class->add_method(Method::create_delegate_for_reflection($method, $variable_name));
}
}
