Merge pull request #1203 from lark-parser/lark_meta

PropagatePositions: Allow any object to carry the metadata, by returning it in __lark_meta__()
lark-parser · Oct 27, 2022 · f345d84 · f345d84
2 parents 6365160 + c8386b2
commit f345d84
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lark/parse_tree_builder.py b/lark/parse_tree_builder.py
@@ -73,6 +73,8 @@ def _pp_get_meta(self, children):
                     return c.meta
             elif isinstance(c, Token):
                 return c
+            elif hasattr(c, '__lark_meta__'):
+                return c.__lark_meta__()
 
 def make_propagate_positions(option):
     if callable(option):