added a syntax error exception when parent block is used on a template that does...

diff --git a/CHANGELOG b/CHANGELOG
index f493b4b..8ce0ffd 100644 (file)
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,6 @@
 * 0.9.10
 
+ * added a syntax error exception when parent block is used on a template that does not extend another one
  * made the Escaper and Optimizer extensions enabled by default
  * fixed sandbox extension when used with auto output escaping
  * fixed escaper when wrapping a Twig_Node_Print (the original class must be preserved)

diff --git a/lib/Twig/TokenParser/Parent.php b/lib/Twig/TokenParser/Parent.php
index d9204e6..afde369 100644 (file)
--- a/lib/Twig/TokenParser/Parent.php
+++ b/lib/Twig/TokenParser/Parent.php
@@ -25,6 +25,10 @@ class Twig_TokenParser_Parent extends Twig_TokenParser
         }
         $this->parser->getStream()->expect(Twig_Token::BLOCK_END_TYPE);
 
+        if (!$this->parser->getParent()) {
+            throw new Twig_Error_Syntax('Calling "parent" on a template that does not extend another one is forbidden', $token->getLine());
+        }
+
         return new Twig_Node_Parent($this->parser->peekBlockStack(), $token->getLine(), $this->getTag());
     }