src/test/compile-fail/issue-13466.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 // Regression test for #13466
  12
  13 pub fn main() {
  14     // The expected arm type `Option<T>` has one type parameter, while
  15     // the actual arm `Result<T, E>` has two. typeck should not be
  16     // tricked into looking up a non-existing second type parameter.
  17     let _x: usize = match Some(1) {
  18         Ok(u) => u,
  19         //~^ ERROR mismatched types
  20         //~| expected `std::option::Option<_>`
  21         //~| found `std::result::Result<_, _>`
  22         //~| expected enum `std::option::Option`
  23         //~| found enum `std::result::Result`
  24
  25         Err(e) => panic!(e)
  26         //~^ ERROR mismatched types
  27         //~| expected `std::option::Option<_>`
  28         //~| found `std::result::Result<_, _>`
  29         //~| expected enum `std::option::Option`
  30         //~| found enum `std::result::Result`
  31     };
  32 }