File: bounds-are-checked3.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (16 lines) | stat: -rw-r--r-- 422 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
#![feature(type_alias_impl_trait)]

use std::fmt::{Debug, Display};

struct Struct<V: Display>(Option<V>);

// Make sure that, in contrast to type aliases without opaque types,
// we actually do a wf check for the aliased type.
type Foo<T: Debug> = (impl Debug, Struct<T>);
//~^ ERROR: `T` doesn't implement `std::fmt::Display`

fn foo<U: Debug + Display>() -> Foo<U> {
    (Vec::<U>::new(), Struct(None))
}

fn main() {}