WP_Script_Modules::get_import_map(): array<string,

644	private function get_import_map(): array {645		global $wp_scripts;646 647		$imports = array();648 649		// Identify script modules that are dependencies of classic scripts.650		$classic_script_module_dependencies = array();651		if ( $wp_scripts instanceof WP_Scripts ) {652			$handles = array_merge(653				$wp_scripts->queue,654				$wp_scripts->to_do,655				$wp_scripts->done656			);657 658			$processed = array();659			while ( ! empty( $handles ) ) {660				$handle = array_pop( $handles );661				if ( isset( $processed[ $handle ] ) || ! isset( $wp_scripts->registered[ $handle ] ) ) {662					continue;663				}664				$processed[ $handle ] = true;665 666				$module_dependencies = $wp_scripts->get_data( $handle, 'module_dependencies' );667				if ( is_array( $module_dependencies ) ) {668					$missing_module_dependencies = array();669					foreach ( $module_dependencies as $module ) {670						if ( is_string( $module ) ) {671							$id = $module;672						} elseif ( is_array( $module ) && isset( $module['id'] ) && is_string( $module['id'] ) ) {673							$id = $module['id'];674						} else {675							// Invalid module dependency was supplied by direct manipulation of the extra data.676							// Normally, this error scenario would be caught when WP_Scripts::add_data() is called.677							continue;678						}679 680						if ( ! isset( $this->registered[ $id ] ) ) {681							$missing_module_dependencies[] = $id;682						} else {683							$classic_script_module_dependencies[] = $id;684						}685					}686 687					if ( count( $missing_module_dependencies ) > 0 ) {688						_doing_it_wrong(689							'WP_Scripts::add_data',690							sprintf(691								/* translators: 1: Script handle, 2: 'module_dependencies', 3: List of missing dependency IDs. */692								__( 'The script with the handle "%1$s" was enqueued with script module dependencies ("%2$s") that are not registered: %3$s.' ),693								$handle,694								'module_dependencies',695								implode( wp_get_list_item_separator(), $missing_module_dependencies )696							),697							'7.0.0'698						);699					}700				}701 702				foreach ( $wp_scripts->registered[ $handle ]->deps as $dep ) {703					if ( ! isset( $processed[ $dep ] ) ) {704						$handles[] = $dep;705					}706				}707			}708		}709 710		// Note: the script modules in $this->queue are not included in the importmap because they get printed as scripts.711		$ids = array_unique(712			array_merge(713				$classic_script_module_dependencies,714				array_keys( $this->get_dependencies( array_merge( $this->queue, $classic_script_module_dependencies ) ) )715			)716		);717		foreach ( $ids as $id ) {718			$src = $this->get_src( $id );719			if ( '' !== $src ) {720				$imports[ $id ] = $src;721			}722		}723		return array( 'imports' => $imports );