rust/tests/ui/feature-gates/feature-gate-marker_trait_attr.rs
2023-01-11 09:32:08 +00:00

10 lines
226 B
Rust

use std::fmt::{Debug, Display};
#[marker] trait ExplicitMarker {}
//~^ ERROR the `#[marker]` attribute is an experimental feature
impl<T: Display> ExplicitMarker for T {}
impl<T: Debug> ExplicitMarker for T {}
fn main() {}