src/Loop.php
private static function createDriver()
    {
        if (self::$factory === null) {
            throw new \Exception("No loop driver factory set; Either pass a driver to Loop::execute or set a factory.");
        }

        $driver = self::$factory->create();

        if (!$driver instanceof Driver) {
            $type = is_object($driver) ? "an instance of " . get_class($driver) : gettype($driver);
            throw new \Exception("Loop driver factory returned {$type}, but must return an instance of Driver.");
        }

        return $driver;
    }
private static function createDriver()
    {
        if (self::$factory === null) {
            throw new \Exception("No loop driver factory set; Either pass a driver to Loop::execute or set a factory.");
        }

        $driver = self::$factory->create();

        if (!$driver instanceof Driver) {
            $type = is_object($driver) ? "an instance of " . get_class($driver) : gettype($driver);
            throw new \Exception("Loop driver factory returned {$type}, but must return an instance of Driver.");
        }

        return $driver;
    }
private static function createDriver ( ) { if ( self :: $ factory === null ) { throw new \ Exception ( "No loop driver factory set; Either pass a driver to Loop::execute or set a factory." ) ; } $ driver = self :: $ factory -> create ( ) ; if ( ! $ driver instanceof Driver ) { $ type = is_object ( $ driver ) ? "an instance of " . get_class ( $ driver ) : gettype ( $ driver ) ; throw new \ Exception ( "Loop driver factory returned {$type}, but must return an instance of Driver." ) ; } return $ driver ; }
Create a new driver if a factory is present, otherwise throw.

@return Driver

@throws \Exception If no factory is set or no driver returned from factory.
Create a new driver if a factory is present otherwise throw .