syntax_data: {"ast_node_type":"other","tokens":[{"end":26,"kind":"keyword","start":0,"text":"*i"}]}
source_snippet:             *i += vec_len;
context_before:                 1 + cls[*i + 1..].iter().take_while(|&&c| c == Some(Class::SseUp)).count();
context_after:             Some(if vec_len == 1 {