Fixed some deprecations.

src/Form/AttachmentFormType.php

@@ -185,7 +185,7 @@ class AttachmentFormType extends AbstractType
         ]);
     }
 
-    public function getBlockPrefix()
+    public function getBlockPrefix(): string
     {
         return 'attachment';
     }

src/Form/Permissions/PermissionsMapper.php

@@ -72,7 +72,7 @@ final class PermissionsMapper implements DataMapperInterface
      * @param mixed                       $viewData View data of the compound form being initialized
      * @param FormInterface[]|Traversable $forms    A list of {@link FormInterface} instances
      */
-    public function mapDataToForms($viewData, $forms)
+    public function mapDataToForms($viewData, $forms): void
     {
         foreach ($forms as $form) {
             if ($this->inherit) {

src/Form/Type/BigDecimalMoneyType.php

@@ -33,12 +33,12 @@ class BigDecimalMoneyType extends AbstractType implements DataTransformerInterfa
         $builder->addModelTransformer($this);
     }
 
-    public function getParent()
+    public function getParent(): string
     {
         return MoneyType::class;
     }
 
-    public function transform($value)
+    public function transform($value): ?string
     {
         if (null === $value) {
             return null;
@@ -51,7 +51,7 @@ class BigDecimalMoneyType extends AbstractType implements DataTransformerInterfa
         return $value;
     }
 
-    public function reverseTransform($value)
+    public function reverseTransform($value): ?BigDecimal
     {
         if (null === $value) {
             return null;

src/Form/Type/BigDecimalNumberType.php

@@ -33,12 +33,12 @@ class BigDecimalNumberType extends AbstractType implements DataTransformerInterf
         $builder->addModelTransformer($this);
     }
 
-    public function getParent()
+    public function getParent(): string
     {
         return NumberType::class;
     }
 
-    public function transform($value)
+    public function transform($value): ?string
     {
         if (null === $value) {
             return null;
@@ -51,7 +51,7 @@ class BigDecimalNumberType extends AbstractType implements DataTransformerInterf
         return $value;
     }
 
-    public function reverseTransform($value)
+    public function reverseTransform($value): ?BigDecimal
     {
         if (null === $value) {
             return null;

src/Form/Type/MasterPictureAttachmentType.php

@@ -96,7 +96,7 @@ class MasterPictureAttachmentType extends AbstractType
         $resolver->setAllowedValues('filter', ['', 'picture', '3d_model']);
     }
 
-    public function getParent()
+    public function getParent(): string
     {
         return ChoiceType::class;
     }

src/Form/Type/RichTextEditorType.php

@@ -21,7 +21,7 @@ class RichTextEditorType extends AbstractType
 
     }
 
-    public function getBlockPrefix()
+    public function getBlockPrefix(): string
     {
         return 'rich_text_editor';
     }
@@ -33,7 +33,7 @@ class RichTextEditorType extends AbstractType
         parent::finishView($view, $form, $options); // TODO: Change the autogenerated stub
     }
 
-    protected function optionsToAttrArray(array $options)
+    protected function optionsToAttrArray(array $options): array
     {
         $tmp = [];
 
@@ -49,7 +49,7 @@ class RichTextEditorType extends AbstractType
         return $tmp;
     }
 
-    public function getParent()
+    public function getParent(): string
     {
         return TextareaType::class;
     }

src/Form/Type/SIUnitType.php

@@ -176,7 +176,7 @@ final class SIUnitType extends AbstractType implements DataMapperInterface
      *
      * @throws Exception\UnexpectedTypeException if the type of the data parameter is not supported
      */
-    public function mapDataToForms($viewData, $forms)
+    public function mapDataToForms($viewData, $forms): void
     {
         $forms = iterator_to_array($forms);
 

src/Form/Type/StructuralEntityType.php

@@ -148,7 +148,7 @@ class StructuralEntityType extends AbstractType
         parent::buildView($view, $form, $options);
     }
 
-    public function getParent()
+    public function getParent(): string
     {
         return ChoiceType::class;
     }

src/Form/Type/TriStateCheckboxType.php

@@ -68,7 +68,7 @@ final class TriStateCheckboxType extends AbstractType implements DataTransformer
         ]);
     }
 
-    public function getBlockPrefix()
+    public function getBlockPrefix(): string
     {
         return 'tristate';
     }