src/test/ui/issues/issue-42956.rs

   1 // Copyright 2018 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 // compile-pass
  12 #![allow(dead_code)]
  13 #![allow(stable_features)]
  14 #![feature(associated_consts)]
  15
  16 impl A for i32 {
  17     type Foo = u32;
  18 }
  19 impl B for u32 {
  20     const BAR: i32 = 0;
  21 }
  22
  23 trait A {
  24     type Foo: B;
  25 }
  26
  27 trait B {
  28     const BAR: i32;
  29 }
  30
  31 fn generic<T: A>() {
  32     // This panics if the universal function call syntax is used as well
  33     println!("{}", T::Foo::BAR);
  34 }
  35
  36 fn main() {}