syntax_data: {"ast_node_type":"other","tokens":[{"end":71,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:             if Some(a.accept) == a_state || Some(b.accept) == b_state {
context_before:         let mut mapped = |(a_state, b_state)| {
context_after:                 // If either `a_state` or `b_state` are accepting, map to a