rust/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method-fail.rs
2024-02-16 20:02:50 +00:00

21 lines
311 B
Rust

//@ known-bug: #110395
#![feature(const_trait_impl)]
#[const_trait]
trait Tr {
fn a(self) -> i32;
}
impl Tr for () {
fn a(self) -> i32 { 42 }
}
const fn need_const_closure<T: ~const FnOnce(()) -> i32>(x: T) -> i32 {
x(())
}
const _: () = assert!(need_const_closure(Tr::a) == 42);
fn main() {}