src/test/compile-fail/closure-expected-type/expect-infer-var-supply-ty-with-free-region.rs

   1 // Copyright 2016 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 // compile-pass
  12
  13 fn with_closure<F, A>(_: F)
  14     where F: FnOnce(A, &u32)
  15 {
  16 }
  17
  18 fn foo() {
  19     // This version works; we infer `A` to be `u32`, and take the type
  20     // of `y` to be `&u32`.
  21     with_closure(|x: u32, y| {});
  22 }
  23
  24 fn bar<'x>(x: &'x u32) {
  25     // Same.
  26     with_closure(|x: &'x u32, y| {});
  27 }
  28
  29 fn main() { }