Shared via Rust Playground

playground.rs

#[derive(Debug)]
struct Foo(u32);

fn foo(val: u32) -> Foo { Foo(val) }

impl Foo {
    fn new() -> Self { Foo(3) }
}

trait BoolExt {
    fn into_option<F, T>(self, f: F) -> Option<T>
        where F: Fn() -> T, Self: Sized;
}

impl BoolExt for bool {
    fn into_option<F, T>(self, f: F) -> Option<T>
        where F: Fn() -> T, Self: Sized
    {
        if self { Some(f()) } else { None  }
    }
}

fn main() {
    println!("{:?}", true.into_option(Foo::new));
    println!("{:?}", false.into_option(|| foo(3)));
}