Merge pull request #240 from dylanbr/nullable-parameters

Make nullable parameters with types explicit

Author: dwightwatson

src/ValidatingInterface.php

@@ -88,7 +88,7 @@ public function getRules();
      * @param  array $rules
      * @return void
      */
-    public function setRules(array $rules = null);
+    public function setRules(?array $rules = null);
 
     /**
      * Get the validation error messages from the model.

src/ValidatingTrait.php

@@ -194,7 +194,7 @@ protected function modelValidationAttributeNames()
      * @param  array  $attributeNames
      * @return void
      */
-    public function setValidationAttributeNames(array $attributeNames = null)
+    public function setValidationAttributeNames(?array $attributeNames = null)
     {
         $this->validationAttributeNames = $attributeNames;
     }
@@ -236,7 +236,7 @@ protected function rules()
      * @param  array $rules
      * @return void
      */
-    public function setRules(array $rules = null)
+    public function setRules(?array $rules = null)
     {
         $this->rules = $rules;
     }