check mutability attr exists

tserg · Aug 14, 2023 · 65b5384 · 65b5384
1 parent 199eece
commit 65b5384
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/vyper/semantics/analysis/annotation.py b/vyper/semantics/analysis/annotation.py
@@ -187,7 +187,8 @@ def _check_mutability(call_type):
             for arg, arg_type in zip(node.args, call_type.arg_types):
                 self.visit(arg, arg_type)
         else:
-            _check_mutability(call_type)
+            if hasattr(call_type, "mutability"):
+                _check_mutability(call_type)
 
             # builtin functions
             arg_types = call_type.infer_arg_types(node)