{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"//"}]}
            // If we don't have span information, emit and exit
        let (Some(sm), false) = (self.sm.as_ref(), primary_span.is_dummy()) else {
            return emit_to_destination(&buffer.render(), level, &mut self.dst, self.short_message);