src/test/compile-fail/issue-20225.rs

   1 // Copyright 2015 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 #![feature(unboxed_closures)]
  12
  13 struct Foo;
  14
  15 impl<'a, T> Fn<(&'a T,)> for Foo {
  16   extern "rust-call" fn call(&self, (_,): (T,)) {}
  17   //~^ ERROR: has an incompatible type for trait
  18   //~| expected &-ptr
  19 }
  20
  21 impl<'a, T> FnMut<(&'a T,)> for Foo {
  22   extern "rust-call" fn call_mut(&mut self, (_,): (T,)) {}
  23   //~^ ERROR: has an incompatible type for trait
  24   //~| expected &-ptr
  25 }
  26
  27 impl<'a, T> FnOnce<(&'a T,)> for Foo {
  28   type Output = ();
  29
  30   extern "rust-call" fn call_once(self, (_,): (T,)) {}
  31   //~^ ERROR: has an incompatible type for trait
  32   //~| expected &-ptr
  33 }
  34
  35 fn main() {}