require run method to have void return type

Author: Enno Woortmann

src/Step/Loop.php

@@ -42,7 +42,7 @@ public function getDescription(): string
         return $this->loopControl->getDescription();
     }
 
-    public function run(WorkflowControl $control, WorkflowContainer $container)
+    public function run(WorkflowControl $control, WorkflowContainer $container): void
     {
         $iteration = 0;
 

src/Step/NestedWorkflow.php

@@ -29,7 +29,7 @@ public function getDescription(): string
         return "Execute nested workflow";
     }
 
-    public function run(WorkflowControl $control, WorkflowContainer $container)
+    public function run(WorkflowControl $control, WorkflowContainer $container): void
     {
         try {
             $this->workflowResult = $this->nestedWorkflow->executeWorkflow(

src/Step/WorkflowStep.php

@@ -13,5 +13,5 @@ interface WorkflowStep extends Describable
     /**
      * Implement the logic for your step
      */
-    public function run(WorkflowControl $control, WorkflowContainer $container);
+    public function run(WorkflowControl $control, WorkflowContainer $container): void;
 }

tests/WorkflowSetupTrait.php

@@ -34,7 +34,7 @@ public function getDescription(): string
                 return $this->description;
             }
 
-            public function run(WorkflowControl $control, WorkflowContainer $container)
+            public function run(WorkflowControl $control, WorkflowContainer $container): void
             {
                 ($this->callable)($control, $container);
             }