From 3c62b9340176dc409f3ad2802ae20779245d0f33 Mon Sep 17 00:00:00 2001
From: Olivier 'reivilibre <olivier@librepush.net>
Date: Sat, 18 Sep 2021 07:18:23 +0100
Subject: [PATCH] Don't stringify variables that aren't suitable.

Related to #38 though potentially not fixed.
---
 scone/head/dependency_tracking.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scone/head/dependency_tracking.py b/scone/head/dependency_tracking.py
index 4a5a092..07435e1 100644
--- a/scone/head/dependency_tracking.py
+++ b/scone/head/dependency_tracking.py
@@ -215,7 +215,9 @@ class DependencyVarProxy:
             self._tracker.register_variable(self._current_path_prefix, raw_value)
             return str(raw_value)
         else:
-            return repr(self)
+            raise ValueError(
+                f"Trying to stringify a variable proxy which contains {repr(self)}"
+            )
 
     def raw_(self) -> Union[Dict[str, Any], List[Any], int, str, bool]:
         if not self._current_path_prefix: