mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 22:41:50 +00:00
30 lines
406 B
Rust
30 lines
406 B
Rust
#![feature(const_trait_impl)]
|
|
|
|
#[const_trait]
|
|
trait ConstDefaultFn: Sized {
|
|
fn b(self);
|
|
|
|
fn a(self) {
|
|
self.b();
|
|
}
|
|
}
|
|
|
|
struct NonConstImpl;
|
|
struct ConstImpl;
|
|
|
|
impl ConstDefaultFn for NonConstImpl {
|
|
fn b(self) {}
|
|
}
|
|
|
|
impl const ConstDefaultFn for ConstImpl {
|
|
fn b(self) {}
|
|
}
|
|
|
|
const fn test() {
|
|
NonConstImpl.a();
|
|
//~^ ERROR the trait bound
|
|
ConstImpl.a();
|
|
}
|
|
|
|
fn main() {}
|