do_action_ref_array( 'pre_get_comments', WP_Comment_Query $query )

395		 * Fires before comments are retrieved.396		 *397		 * @since 3.1.0398		 *399		 * @param WP_Comment_Query $query Current instance of WP_Comment_Query (passed by reference).400		 */401		do_action_ref_array( 'pre_get_comments', array( &$this ) );402 403		// Reparse query vars, in case they were modified in a 'pre_get_comments' callback.404		$this->meta_query->parse_query_vars( $this->query_vars );405		if ( ! empty( $this->meta_query->queries ) ) {406			$this->meta_query_clauses = $this->meta_query->get_sql( 'comment', $wpdb->comments, 'comment_ID', $this );407		}