syntax_data: {"ast_node_type":"other","tokens":[{"end":37,"kind":"keyword","start":0,"text":"sp"}]}
source_snippet:             sp = self.next_point(sp);
context_before:         for _ in 0..limit.unwrap_or(100_usize) {
context_after:             if let Ok(ref snippet) = self.span_to_snippet(sp) {