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Fix issue with propagate_positions
tags/gm/2021-09-23T00Z/github.com--lark-parser-lark/0.6.6
Erez Shinan
6 years ago
1 changed files with 2 additions and 2 deletions
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+ 2
- 2
lark/parse_tree_builder.py
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| @@ -28,7 +28,7 @@ class PropagatePositions: | |||||
| def __call__(self, children): | def __call__(self, children): | ||||
| res = self.node_builder(children) | res = self.node_builder(children) | ||||
| if isinstance(res, Tree): | |||||
| if isinstance(res, Tree) and getattr(res.meta, 'empty', True): | |||||
| res.meta.empty = True | res.meta.empty = True | ||||
| for c in children: | for c in children: | ||||
| @@ -144,9 +144,9 @@ class ParseTreeBuilder: | |||||
| expand_single_child = options.expand1 if options else False | expand_single_child = options.expand1 if options else False | ||||
| wrapper_chain = filter(None, [ | wrapper_chain = filter(None, [ | ||||
| self.propagate_positions and PropagatePositions, | |||||
| (expand_single_child and not rule.alias) and ExpandSingleChild, | (expand_single_child and not rule.alias) and ExpandSingleChild, | ||||
| maybe_create_child_filter(rule.expansion, keep_all_tokens), | maybe_create_child_filter(rule.expansion, keep_all_tokens), | ||||
| self.propagate_positions and PropagatePositions, | |||||
| self.ambiguous and maybe_create_ambiguous_expander(self.tree_class, rule.expansion, keep_all_tokens), | self.ambiguous and maybe_create_ambiguous_expander(self.tree_class, rule.expansion, keep_all_tokens), | ||||
| ]) | ]) | ||||