Issue #3437351: follow-up Fix return typehinting for Validator related classes

core/modules/file/src/Plugin/Validation/Constraint/FileExtensionConstraintValidator.php

@@ -15,7 +15,7 @@ class FileExtensionConstraintValidator extends BaseFileConstraintValidator {
   /**
    * {@inheritdoc}
    */
-  public function validate(mixed $value, Constraint $constraint) {
+  public function validate(mixed $value, Constraint $constraint): void {
     $file = $this->assertValueIsFile($value);
     if (!$constraint instanceof FileExtensionConstraint) {
       throw new UnexpectedTypeException($constraint, FileExtensionConstraint::class);

core/modules/file/src/Plugin/Validation/Constraint/FileExtensionSecureConstraintValidator.php

@@ -36,7 +36,7 @@ public static function create(ContainerInterface $container) {
   /**
    * {@inheritdoc}
    */
-  public function validate(mixed $value, Constraint $constraint) {
+  public function validate(mixed $value, Constraint $constraint): void {
     $file = $this->assertValueIsFile($value);
     if (!$constraint instanceof FileExtensionSecureConstraint) {
       throw new UnexpectedTypeException($constraint, FileExtensionSecureConstraint::class);

core/modules/file/src/Plugin/Validation/Constraint/FileImageDimensionsConstraintValidator.php

@@ -45,7 +45,7 @@ public static function create(ContainerInterface $container) {
   /**
    * {@inheritdoc}
    */
-  public function validate(mixed $value, Constraint $constraint) {
+  public function validate(mixed $value, Constraint $constraint): void {
     $file = $this->assertValueIsFile($value);
     if (!$constraint instanceof FileImageDimensionsConstraint) {
       throw new UnexpectedTypeException($constraint, FileImageDimensionsConstraint::class);

core/modules/file/src/Plugin/Validation/Constraint/FileIsImageConstraintValidator.php

@@ -35,7 +35,7 @@ public static function create(ContainerInterface $container) {
   /**
    * {@inheritdoc}
    */
-  public function validate(mixed $value, Constraint $constraint) {
+  public function validate(mixed $value, Constraint $constraint): void {
     $file = $this->assertValueIsFile($value);
     if (!$constraint instanceof FileIsImageConstraint) {
       throw new UnexpectedTypeException($constraint, FileIsImageConstraint::class);

core/modules/file/src/Plugin/Validation/Constraint/FileNameLengthConstraintValidator.php

@@ -13,7 +13,7 @@ class FileNameLengthConstraintValidator extends BaseFileConstraintValidator {
   /**
    * {@inheritdoc}
    */
-  public function validate(mixed $value, Constraint $constraint) {
+  public function validate(mixed $value, Constraint $constraint): void {
     $file = $this->assertValueIsFile($value);
     if (!$constraint instanceof FileNameLengthConstraint) {
       throw new UnexpectedTypeException($constraint, FileNameLengthConstraint::class);