syntax_data: {"ast_node_type":"other","tokens":[{"end":36,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:         match (&mut *self, source) {
context_before:     fn clone_from(&mut self, source: &Self) {
context_after:             (MaybeReachable::Reachable(x), MaybeReachable::Reachable(y)) => {