Remove unnecessary check in sctructural example of Memento

lex111 · lex111 · commit 776d4c21efce · 2019-01-26T21:35:54.000+03:00
diff --git a/src/RefactoringGuru/Memento/Structural/MementoStructural.php b/src/RefactoringGuru/Memento/Structural/MementoStructural.php
@@ -93,10 +93,6 @@ public function save(): Memento
      */
     public function restore(Memento $memento): void
     {
-        if (! $memento instanceof ConcreteMemento) {
-            throw new \Exception("Unknown memento class ".get_class($memento));
-        }
-
         $this->state = $memento->getState();
         echo "Originator: My state has changed to: {$this->state}\n";
     }

Original file line number	Diff line number	Diff line change
`@@ -93,10 +93,6 @@ public function save(): Memento`
`93`	`93`	`*/`
`94`	`94`	`public function restore(Memento $memento): void`
`95`	`95`	`{`
`96`		`- if (! $memento instanceof ConcreteMemento) {`
`97`		`- throw new \Exception("Unknown memento class ".get_class($memento));`
`98`		`- }`
`99`		`-`
`100`	`96`	`$this->state = $memento->getState();`
`101`	`97`	`echo "Originator: My state has changed to: {$this->state}\n";`
`102`	`98`	`}`