syntax_data: {"ast_node_type":"function","tokens":[{"end":36,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn sort_match_pairs(&mut self) {
context_before:     /// Restores the invariant that or-patterns must be sorted to the end.
context_after:         self.match_pairs.sort_by_key(|pair| matches!(pair.test_case, TestCase::Or { .. }));