rust/tests/ui/delegation/explicit-paths-signature-pass.rs
2024-03-27 15:51:48 +03:00

40 lines
676 B
Rust

//@ run-pass
#![feature(fn_delegation)]
#![allow(incomplete_features)]
mod to_reuse {
use crate::S;
pub fn foo<'a>(#[cfg(FALSE)] a: u8, _b: &'a S) -> u32 {
1
}
}
reuse to_reuse::foo;
trait Trait {
fn foo(&self) -> u32 { 0 }
fn bar(self: Box<Self>) -> u32 { 2 }
fn baz(a: (i32, i32)) -> i32 { a.0 + a.1 }
}
struct F;
impl Trait for F {}
struct S(F);
impl Trait for S {
reuse to_reuse::foo { self }
reuse Trait::bar { Box::new(self.0) }
reuse <F as Trait>::baz;
}
fn main() {
let s = S(F);
assert_eq!(1, foo(&s));
assert_eq!(1, s.foo());
assert_eq!(2, Box::new(s).bar());
assert_eq!(4, S::baz((2, 2)));
}