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//@ check-pass
#![feature(lint_reasons)]
use std::fmt::Display;
pub trait Foo {
fn bar(&self) -> impl Display;
}
impl Foo for i32 {
#[expect(refining_impl_trait)]
fn bar(&self) -> i32 {
*self
}
}
impl Foo for &'static str {
#[expect(refining_impl_trait)]
fn bar(&self) -> &'static str {
*self
}
}
pub struct Yay;
impl Foo for Yay {
#[expect(refining_impl_trait)]
fn bar(&self) -> String {
String::from(":^)")
}
}
fn foo_generically<T: Foo>(t: T) {
println!("{}", t.bar());
}
fn main() {
println!("{}", "Hello, world.".bar());
println!("The answer is {}!", 42.bar());
foo_generically(Yay);
}
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