src/test/run-pass/generic-tag.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 // pretty-expanded FIXME #23616
  12
  13 #![allow(dead_assignment)]
  14 #![allow(unused_variable)]
  15 #![allow(unknown_features)]
  16 #![feature(box_syntax)]
  17
  18 enum option<T> { some(Box<T>), none, }
  19
  20 pub fn main() {
  21     let mut a: option<isize> = option::some::<isize>(box 10);
  22     a = option::none::<isize>;
  23 }