src/test/run-pass/hrtb-precedence-of-plus.rs

   1 // Copyright 2014 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.
   4 //
   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.
  10
  11 // pretty-expanded FIXME #23616
  12
  13 #![allow(unknown_features)]
  14
  15 // Test that `Fn(isize) -> isize + 'static` parses as `(Fn(isize) -> isize) +
  16 // 'static` and not `Fn(isize) -> (isize + 'static)`. The latter would
  17 // cause a compilation error. Issue #18772.
  18
  19 fn adder(y: isize) -> Box<Fn(isize) -> isize + 'static> {
  20     // FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
  21     Box::new(move |x| y + x)
  22 }
  23
  24 fn main() {}