Update SourceCodeGeneratorInterface.php

Author: wehowski

src/Frdlweb/Contract/Autoload/SourceCodeGeneratorInterface.php

@@ -1,8 +1,11 @@
 <?php
-
-interface SourceCodeGeneratorInterface
-{
+namespace Frdlweb\Contract\Autoload {
+ if (!interface_exists(SourceCodeGeneratorInterface::class)) {	     
+  interface SourceCodeGeneratorInterface
+   {
      public function file(string $className):string;
      public function source(string $className):string;
      public function bundle(array $classes):string;   
+   }
+  }     
 }