generateMessage will always return a string.

beberlei · Dec 24, 2018 · 753666c · 753666c
1 parent d133974
commit 753666c
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/Assert/Assertion.php b/lib/Assert/Assertion.php
@@ -2589,9 +2589,9 @@ protected static function stringify($value)
      *
      * @param string|callable $message
      *
-     * @return string|null
+     * @return string
      */
-    protected static function generateMessage($message)
+    protected static function generateMessage($message): string
     {
         if (\is_callable($message)) {
             $traces = \debug_backtrace(0);
@@ -2618,6 +2618,6 @@ protected static function generateMessage($message)
             } // @codeCoverageIgnoreEnd
         }
 
-        return \is_null($message) ? null : (string) $message;
+        return (string) $message;
     }
 }