src/test/compile-fail/issue-21332.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 struct S;
  12
  13 impl Iterator for S {
  14     type Item = i32;
  15     fn next(&mut self) -> Result<i32, i32> { Ok(7) }
  16     //~^ ERROR method `next` has an incompatible type for trait
  17     //~| expected enum `std::option::Option`
  18     //~|    found enum `std::result::Result` [E0053]
  19 }
  20
  21 fn main() {}