1 // Copyright 2014-2019 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution.
4 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
5 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
7 // option. This file may not be copied, modified, or distributed
8 // except according to those terms.
10 // aux-build:option_helpers.rs
12 //! Checks implementation of `RESULT_MAP_UNWRAP_OR_ELSE`
14 #![warn(clippy::result_map_unwrap_or_else)]
17 extern crate option_helpers;
20 let res: Result<i32, ()> = Ok(1);
22 // Check RESULT_MAP_UNWRAP_OR_ELSE
24 let _ = res.map(|x| x + 1).unwrap_or_else(|e| 0); // should lint even though this call is on a separate line
26 let _ = res.map(|x| x + 1).unwrap_or_else(|e| 0);
27 let _ = res.map(|x| x + 1).unwrap_or_else(|e| 0);
29 let _ = opt_map!(res, |x| x + 1).unwrap_or_else(|e| 0); // should not lint