syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:         match self.nested_goals.entry(input) {
context_before:     fn insert(&mut self, input: X::Input, paths_to_nested: PathsToNested) {
context_after:             Entry::Occupied(mut entry) => *entry.get_mut() |= paths_to_nested,