syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"self.opts.incremental.as_ref().map(|_|"}]}
source_snippet:         self.opts.incremental.as_ref().map(|_| self.incr_comp_session_dir())
context_before:     pub fn incr_comp_session_dir_opt(&self) -> Option<MappedReadGuard<'_, PathBuf>> {
context_after:     }