comparison vendor/doctrine/common/lib/Doctrine/Common/Proxy/Exception/UnexpectedValueException.php @ 2:5311817fb629

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     {
         return new self(sprintf('Your proxy directory "%s" must be writable', $proxyDirectory));
     }
 
     /**
-     * @param string     $className
-     * @param string     $methodName
-     * @param string     $parameterName
-     * @param \Exception $previous
+     * @param string          $className
+     * @param string          $methodName
+     * @param string          $parameterName
+     * @param \Exception|null $previous
      *
      * @return self
      */
-    public static function invalidParameterTypeHint($className, $methodName, $parameterName, \Exception $previous)
-    {
+    public static function invalidParameterTypeHint(
+        $className,
+        $methodName,
+        $parameterName,
+        \Exception $previous = null
+    ) {
         return new self(
             sprintf(
                 'The type hint of parameter "%s" in method "%s" in class "%s" is invalid.',
                 $parameterName,
                 $methodName,

             ),
             0,
             $previous
         );
     }
+
+    /**
+     * @param $className
+     * @param $methodName
+     * @param \Exception|null $previous
+     *
+     * @return self
+     */
+    public static function invalidReturnTypeHint($className, $methodName, \Exception $previous = null)
+    {
+        return new self(
+            sprintf(
+                'The return type of method "%s" in class "%s" is invalid.',
+                $methodName,
+                $className
+            ),
+            0,
+            $previous
+        );
+    }
 }