stered_widgets[ $widget_id ] ) ) {
		return '';
	}

	if ( isset( $wp_registered_sidebars[ $sidebar_id ] ) ) {
		$sidebar = $wp_registered_sidebars[ $sidebar_id ];
	} elseif ( 'wp_inactive_widgets' === $sidebar_id ) {
		$sidebar = array();
	} else {
		return '';
	}

	$params = array_merge(
		array(
			array_merge(
				$sidebar,
				array(
					'widget_id'   => $widget_id,
					'widget_name' => $wp_registered_widgets[ $widget_id ]['name'],
				)
			),
		),
		(array) $wp_registered_widgets[ $widget_id ]['params']
	);

	// Substitute HTML `id` and `class` attributes into `before_widget`.
	$classname_ = '';
	foreach ( (array) $wp_registered_widgets[ $widget_id ]['classname'] as $cn ) {
		if ( is_string( $cn ) ) {
			$classname_ .= '_' . $cn;
		} elseif ( is_object( $cn ) ) {
			$classname_ .= '_' . get_class( $cn );
		}
	}
	$classname_                 = ltrim( $classname_, '_' );
	$params[0]['before_widget'] = sprintf( $params[0]['before_widget'], $widget_id, $classname_ );

	/** This filter is documented in wp-includes/widgets.php */
	$params = apply_filters( 'dynamic_sidebar_params', $params );

	$callback = $wp_registered_widgets[ $widget_id ]['callback'];

	ob_start();

	/** This filter is documented in wp-includes/widgets.php */
	do_action( 'dynamic_sidebar', $wp_registered_widgets[ $widget_id ] );

	if ( is_callable( $callback ) ) {
		call_user_func_array( $callback, $params );
	}

	return ob_get_clean();
}

/**
 * Calls the control callback of a widget and returns the output.
 *
 * @since 5.8.0
 *
 * @param string $id Widget ID.
 * @return string|null
 */
function wp_render_widget_control( $id ) {
	global $wp_registered_widget_controls;

	if ( ! isset( $wp_registered_widget_controls[ $id ]['callback'] ) ) {
		return null;
	}

	$callback = $wp_registered_widget_controls[ $id ]['callback'];
	$params   = $wp_registered_widget_controls[ $id ]['params'];

	ob_start();

	if ( is_callable( $callback ) ) {
		call_user_func_array( $callback, $params );
	}

	return ob_get_clean();
}

/**
 * Displays a _doing_it_wrong() message for conflicting widget editor scripts.
 *
 * The 'wp-editor' script module is exposed as window.wp.editor. This overrides
 * the legacy TinyMCE editor module which is required by the widgets editor.
 * Because of that conflict, these two shouldn't be enqueued together.
 * See https://core.trac.wordpress.org/ticket/53569.
 *
 * There is also another conflict related to styles where the block widgets
 * editor is hidden if a block enqueues 'wp-edit-post' stylesheet.
 * See https://core.trac.wordpress.org/ticket/53569.
 *
 * @since 5.8.0
 * @access private
 *
 * @global WP_Scripts $wp_scripts
 * @global WP_Styles  $wp_styles
 */
function wp_check_widget_editor_deps() {
	global $wp_scripts, $wp_styles;

	if (
		$wp_scripts->query( 'wp-edit-widgets', 'enqueued' ) ||
		$wp_scripts->query( 'wp-customize-widgets', 'enqueued' )
	) {
		if ( $wp_scripts->query( 'wp-editor', 'enqueued' ) ) {
			_doing_it_wrong(
				'wp_enqueue_script()',
				sprintf(
					/* translators: 1: 'wp-editor', 2: 'wp-edit-widgets', 3: 'wp-customize-widgets'. */
					__( '"%1$s" script should not be enqueued together with the new widgets editor (%2$s or %3$s).' ),
					'wp-editor',
					'wp-edit-widgets',
					'wp-customize-widgets'
				),
				'5.8.0'
			);
		}
		if ( $wp_styles->query( 'wp-edit-post', 'enqueued' ) ) {
			_doing_it_wrong(
				'wp_enqueue_style()',
				sprintf(
					/* translators: 1: 'wp-edit-post', 2: 'wp-edit-widgets', 3: 'wp-customize-widgets'. */
					__( '"%1$s" style should not be enqueued together with the new widgets editor (%2$s or %3$s).' ),
					'wp-edit-post',
					'wp-edit-widgets',
					'wp-customize-widgets'
				),
				'5.8.0'
			);
		}
	}
}

/**
 * Registers the previous theme's sidebars for the block themes.
 *
 * @since 6.2.0
 * @access private
 *
 * @global array $wp_registered_sidebars Registered sidebars.
 */
function _wp_block_theme_register_classic_sidebars() {
	global $wp_registered_sidebars;

	if ( ! wp_is_block_theme() ) {
		return;
	}

	$classic_sidebars = get_theme_mod( 'wp_classic_sidebars' );
	if ( empty( $classic_sidebars ) ) {
		return;
	}

	// Don't use `register_sidebar` since it will enable the `widgets` support for a theme.
	foreach ( $classic_sidebars as $sidebar ) {
		$wp_registered_sidebars[ $sidebar['id'] ] = $sidebar;
	}
}