src/test/compile-fail/rfc-2008-non-exhaustive/enum.rs

   1 // Copyright 2012 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 // aux-build:enums.rs
  12 extern crate enums;
  13
  14 use enums::NonExhaustiveEnum;
  15
  16 fn main() {
  17     let enum_unit = NonExhaustiveEnum::Unit;
  18
  19     match enum_unit {
  20         //~^ ERROR non-exhaustive patterns: `_` not covered [E0004]
  21         NonExhaustiveEnum::Unit => "first",
  22         NonExhaustiveEnum::Tuple(_) => "second",
  23         NonExhaustiveEnum::Struct { .. } => "third"
  24     };
  25 }