Source

File: wp-admin/includes/class-wp-posts-list-table.php

protected function get_edit_link( $args, $label, $class = '' ) {
		$url = add_query_arg( $args, 'edit.php' );

		$class_html   = '';
		$aria_current = '';
		if ( ! empty( $class ) ) {
			$class_html = sprintf(
				' class="%s"',
				esc_attr( $class )
			);

			if ( 'current' === $class ) {
				$aria_current = ' aria-current="page"';
			}
		}

		return sprintf(
			'<a href="%s"%s%s>%s</a>',
			esc_url( $url ),
			$class_html,
			$aria_current,
			$label
		);
	}