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<?php
/**
* Reusable singleton.
*
* @package WP_Revisions_Control
*/
namespace WP_Revisions_Control;
/**
* Trait Singleton.
*/
trait Singleton {
/**
* Singleton.
*
* @var static
*/
private static $__instance;
/**
* Silence is golden!
*/
final private function __construct() {}
/**
* Singleton implementation.
*
* @return static
*/
final public static function get_instance() {
if ( ! is_a( static::$__instance, __CLASS__ ) ) {
static::$__instance = new self();
static::$__instance->setup();
}
return static::$__instance;
}
/**
* Prepare class.
*/
abstract public function setup();
}