src/test/run-pass/unsized.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 // Test syntax checks for `?Sized` syntax.
  12
  13 use std::marker::PhantomData;
  14
  15 trait T1  { }
  16 pub trait T2  { }
  17 trait T3<X: T1> : T2 { }
  18 trait T4<X: ?Sized> { }
  19 trait T5<X: ?Sized, Y> { }
  20 trait T6<Y, X: ?Sized> { }
  21 trait T7<X: ?Sized, Y: ?Sized> { }
  22 trait T8<X: ?Sized+T2> { }
  23 trait T9<X: T2 + ?Sized> { }
  24 struct S1<X: ?Sized>(PhantomData<X>);
  25 enum E<X: ?Sized> { E1(PhantomData<X>) }
  26 impl <X: ?Sized> T1 for S1<X> {}
  27 fn f<X: ?Sized>() {}
  28 type TT<T: ?Sized> = T;
  29
  30 pub fn main() {
  31 }