rust/tests/ui/traits/bound/generic_trait.rs
许杰友 Jieyou Xu (Joe) edafbaffb2
Adjust UI tests for unit_bindings
- Either explicitly annotate `let x: () = expr;` where `x` has unit
  type, or remove the unit binding to leave only `expr;` instead.
- Fix disjoint-capture-in-same-closure test
2023-06-12 20:24:48 +08:00

31 lines
598 B
Rust

// run-pass
#![allow(dead_code)]
#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
trait connection {
fn read(&self) -> isize;
}
trait connection_factory<C:connection> {
fn create(&self) -> C;
}
type my_connection = ();
type my_connection_factory = ();
impl connection for () {
fn read(&self) -> isize { 43 }
}
impl connection_factory<my_connection> for my_connection_factory {
fn create(&self) -> my_connection { () }
}
pub fn main() {
let factory = ();
let connection: () = factory.create();
let result = connection.read();
assert_eq!(result, 43);
}