wp-includes/widgets.php:2110Displays a _doing_it_wrong() message for conflicting widget editor scripts.
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' ); } }}Introduced in 5.8.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/widgets.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.