syntax_data: {"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// branch to `success_block` when the matched value matches the corresponding pattern. If there is
context_before: /// A sub-branch in the output of match lowering. Match lowering has generated MIR code that will
context_after: /// a guard, its failure must continue to `otherwise_block`, which will resume testing patterns.