Fix passing subresults in dynamic filter

igordejanovic · Jun 26, 2021 · 65a1cbf · 65a1cbf
1 parent 8f69caa
commit 65a1cbf
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/parglare/glr.py b/parglare/glr.py
@@ -314,7 +314,8 @@ def _reduce(self, head, root_head, production, node_nonterm,
 
         if self.dynamic_filter and \
                 not self._call_dynamic_filter(parent, head.state, state,
-                                              REDUCE, production, node_nonterm):
+                                              REDUCE, production,
+                                              list(node_nonterm)):
             # Action rejected by dynamic filter
             return
 

diff --git a/tests/func/parsing/test_dynamic_disambiguation_filters.py b/tests/func/parsing/test_dynamic_disambiguation_filters.py
@@ -44,6 +44,8 @@ def custom_disambiguation_filter(context, from_state, to_state, action,
         operations = []
         return
 
+    assert subresults is None or isinstance(subresults, list)
+
     if action is SHIFT:
         operation = context.token.symbol
     else: