WP_Theme_JSON_Resolver::get_block_data(): WP_Theme_JSON

392	public static function get_block_data() {393		$registry = WP_Block_Type_Registry::get_instance();394		$blocks   = $registry->get_all_registered();395 396		if ( null !== static::$blocks && static::has_same_registered_blocks( 'blocks' ) ) {397			return static::$blocks;398		}399 400		$config = array( 'version' => WP_Theme_JSON::LATEST_SCHEMA );401		foreach ( $blocks as $block_name => $block_type ) {402			if ( isset( $block_type->supports['__experimentalStyle'] ) ) {403				$config['styles']['blocks'][ $block_name ] = static::remove_json_comments( $block_type->supports['__experimentalStyle'] );404			}405 406			if (407				isset( $block_type->supports['spacing']['blockGap']['__experimentalDefault'] ) &&408				! isset( $config['styles']['blocks'][ $block_name ]['spacing']['blockGap'] )409			) {410				/*411				 * Ensure an empty placeholder value exists for the block, if it provides a default blockGap value.412				 * The real blockGap value to be used will be determined when the styles are rendered for output.413				 */414				$config['styles']['blocks'][ $block_name ]['spacing']['blockGap'] = null;415			}416		}417 418		/**419		 * Filters the data provided by the blocks for global styles & settings.420		 *421		 * @since 6.1.0422		 *423		 * @param WP_Theme_JSON_Data $theme_json Class to access and update the underlying data.424		 */425		$theme_json = apply_filters( 'wp_theme_json_data_blocks', new WP_Theme_JSON_Data( $config, 'blocks' ) );426 427		/*428		 * Backward compatibility for extenders returning a WP_Theme_JSON_Data429		 * compatible class that is not a WP_Theme_JSON_Data object.430		 */431		if ( $theme_json instanceof WP_Theme_JSON_Data ) {432			static::$blocks = $theme_json->get_theme_json();433		} else {434			$config         = $theme_json->get_data();435			static::$blocks = new WP_Theme_JSON( $config, 'blocks' );436		}437 438		return static::$blocks;439	}