WP_HTML_Stack_Event

22class WP_HTML_Stack_Event {23	/**24	 * Refers to popping an element off of the stack of open elements.25	 *26	 * @since 6.6.027	 */28	const POP = 'pop';29 30	/**31	 * Refers to pushing an element onto the stack of open elements.32	 *33	 * @since 6.6.034	 */35	const PUSH = 'push';36 37	/**38	 * References the token associated with the stack push event,39	 * even if this is a pop event for that element.40	 *41	 * @since 6.6.042	 *43	 * @var WP_HTML_Token44	 */45	public $token;46 47	/**48	 * Indicates which kind of stack operation this event represents.49	 *50	 * May be one of the class constants.51	 *52	 * @since 6.6.053	 *54	 * @see self::POP55	 * @see self::PUSH56	 *57	 * @var string58	 */59	public $operation;60 61	/**62	 * Indicates if the stack element is a real or virtual node.63	 *64	 * @since 6.6.065	 *66	 * @var string67	 */68	public $provenance;69 70	/**71	 * Constructor function.72	 *73	 * @since 6.6.074	 *75	 * @param WP_HTML_Token $token      Token associated with stack event, always an opening token.76	 * @param string        $operation  One of self::PUSH or self::POP.77	 * @param string        $provenance "virtual" or "real".78	 */79	public function __construct( WP_HTML_Token $token, string $operation, string $provenance ) {80		$this->token      = $token;81		$this->operation  = $operation;82		$this->provenance = $provenance;83	}84}