1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 // The output for humans should just highlight the whole span without showing
14 // the suggested replacement, but we also want to test that suggested
15 // replacement only removes one set of parentheses, rather than naïvely
16 // stripping away any starting or ending parenthesis characters—hence this
17 // test of the JSON error format.
19 #![deny(clippy::unused_unit)]
20 #![allow(clippy::needless_return)]
24 // try to disorient the lint with multiple unit returns and newlines
25 pub fn get_unit<F: Fn() -> (), G>(&self, f: F, _g: G) ->
28 let _y: &Fn() -> () = &f;
29 (); // this should not lint, as it's not in return type position
33 impl Into<()> for Unitter {
40 fn return_unit() -> () { () }
44 assert_eq!(u.get_unit(|| {}, return_unit), u.into());