rust/tests/ui/newtype.rs
2024-02-16 20:02:50 +00:00

24 lines
447 B
Rust

//@ run-pass
#![allow(non_camel_case_types)]
#[derive(Copy, Clone)]
struct mytype(Mytype);
#[derive(Copy, Clone)]
struct Mytype {
compute: fn(mytype) -> isize,
val: isize,
}
fn compute(i: mytype) -> isize {
let mytype(m) = i;
return m.val + 20;
}
pub fn main() {
let myval = mytype(Mytype{compute: compute, val: 30});
println!("{}", compute(myval));
let mytype(m) = myval;
assert_eq!((m.compute)(myval), 50);
}