Ticket #36292: just-callback.php

<?php

class WP_Rewrite_CallMeMaybeRule implements WP_Rewrite_RuleInterface {
        protected $callback;

        public function __construct( $callback ) {
                $this->callback = $callback;
                add_action( 'wp', array( $this, 'maybe_run_callback' ) );
        }

        public function maybe_run_callback( WP $wp ) {
                if ( $wp->matched_rule_object === $this ) {
                        call_user_func( $this->callback, $wp );
                }
        }

        public function should_parse_query() {
                return false;
        }

        public function get_query_vars( $matches ) {
                return null;
        }

        public function get_verbose_page_match() {
                return false;
        }
}