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#![feature(marker_trait_attr)]
#[marker]
trait Marker {
const N: usize = 0;
//~^ ERROR marker traits cannot have associated items
fn do_something() {}
//~^ ERROR marker traits cannot have associated items
}
struct OverrideConst;
impl Marker for OverrideConst {
//~^ ERROR impls for marker traits cannot contain items
const N: usize = 1;
}
struct OverrideFn;
impl Marker for OverrideFn {
//~^ ERROR impls for marker traits cannot contain items
fn do_something() {
println!("Hello world!");
}
}
fn main() {}
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