1 // check-pass 2 // compile-flags: -Z validate-mir 3 #![feature(let_chains)] 4 let_chains(entry: std::io::Result<std::fs::DirEntry>)5fn let_chains(entry: std::io::Result<std::fs::DirEntry>) { 6 if let Ok(entry) = entry 7 && let Some(s) = entry.file_name().to_str() 8 && s.contains("") 9 {} 10 } 11 main()12fn main() {} 13