// run-rustfix

fn expect<T>(_: T) {}

fn main() {
    let x = Some(&());
    expect::<Option<()>>(x.copied());
    //~^ ERROR mismatched types
    //~| HELP use `Option::copied` to copy the value inside the `Option`
    let x = Ok(&());
    expect::<Result<(), ()>>(x.copied());
    //~^ ERROR mismatched types
    //~| HELP use `Result::copied` to copy the value inside the `Result`
    let s = String::new();
    let x = Some(&s);
    expect::<Option<String>>(x.cloned());
    //~^ ERROR mismatched types
    //~| HELP use `Option::cloned` to clone the value inside the `Option`
    let x = Ok(&s);
    expect::<Result<String, ()>>(x.cloned());
    //~^ ERROR mismatched types
    //~| HELP use `Result::cloned` to clone the value inside the `Result`

    let s = String::new();
    let x = Some(s.clone());
    let y = Some(&s);
    println!("{}", x.as_ref() == y);
    //~^ ERROR mismatched types
    //~| HELP use `Option::as_ref` to convert `Option<String>` to `Option<&String>`


    let mut s = ();
    let x = Some(s);
    let y = Some(&mut s);
    println!("{}", x == y.copied());
    //~^ ERROR mismatched types
    //~| HELP use `Option::copied` to copy the value inside the `Option`

    let mut s = String::new();
    let x = Some(s.clone());
    let y = Some(&mut s);
    println!("{}", x == y.cloned());
    //~^ ERROR mismatched types
    //~| HELP use `Option::cloned` to clone the value inside the `Option`
}