Remove php 8+ ?static return types

src/wp-includes/html-api/class-wp-css-attribute-selector.php

@@ -255,7 +255,7 @@ private function whitespace_delimited_list( string $input ): Generator {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		// Need at least 3 bytes [x]
 		if ( $offset + 2 >= strlen( $input ) ) {
 			return null;

src/wp-includes/html-api/class-wp-css-class-selector.php

@@ -53,7 +53,7 @@ public function matches( WP_HTML_Tag_Processor $processor ): bool {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		if ( $offset + 1 >= strlen( $input ) || '.' !== $input[ $offset ] ) {
 			return null;
 		}

src/wp-includes/html-api/class-wp-css-complex-selector-list.php

@@ -43,7 +43,7 @@ class WP_CSS_Complex_Selector_List extends WP_CSS_Compound_Selector_List {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		$selector = WP_CSS_Complex_Selector::parse( $input, $offset );
 		if ( null === $selector ) {
 			return null;

src/wp-includes/html-api/class-wp-css-complex-selector.php

@@ -200,7 +200,7 @@ private function explore_matches( array $selectors, array $breadcrumbs ): bool {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		if ( $offset >= strlen( $input ) ) {
 			return null;
 		}

src/wp-includes/html-api/class-wp-css-compound-selector-list.php

@@ -121,7 +121,7 @@ protected function __construct( array $selectors ) {
 	 * @param string $input CSS selectors.
 	 * @return static|null
 	 */
-	public static function from_selectors( string $input ): ?static {
+	public static function from_selectors( string $input ) {
 		$input = self::normalize_selector_input( $input );
 
 		if ( '' === $input ) {
@@ -142,7 +142,7 @@ public static function from_selectors( string $input ): ?static {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		$selector = WP_CSS_Compound_Selector::parse( $input, $offset );
 		if ( null === $selector ) {
 			return null;

src/wp-includes/html-api/class-wp-css-compound-selector.php

@@ -80,7 +80,7 @@ public function matches( WP_HTML_Tag_Processor $processor ): bool {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		if ( $offset >= strlen( $input ) ) {
 			return null;
 		}

src/wp-includes/html-api/class-wp-css-id-selector.php

@@ -62,7 +62,7 @@ public function matches( WP_HTML_Tag_Processor $processor ): bool {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		$ident = self::parse_hash_token( $input, $offset );
 		if ( null === $ident ) {
 			return null;

src/wp-includes/html-api/class-wp-css-selector-parser-matcher.php

@@ -34,7 +34,7 @@ abstract public function matches( WP_HTML_Tag_Processor $processor ): bool;
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	abstract public static function parse( string $input, int &$offset ): ?static;
+	abstract public static function parse( string $input, int &$offset );
 
 	/*
 	 * ------------------------

src/wp-includes/html-api/class-wp-css-type-selector.php

@@ -70,7 +70,7 @@ public function matches_tag( string $tag_name ): bool {
 	 *                       will be updated if the parse is successful.
 	 * @return static|null The selector instance, or null if the parse was unsuccessful.
 	 */
-	public static function parse( string $input, int &$offset ): ?static {
+	public static function parse( string $input, int &$offset ) {
 		if ( $offset >= strlen( $input ) ) {
 			return null;
 		}