Trait tao_of_rust::ch02::generics_trait::Fly

pub trait Fly {
    fn fly(&self) -> bool;
}

trait示例

Basic usage:

pub trait Fly {
    fn fly(&self) -> bool;
}
struct Duck;
struct Pig;
impl Fly for Duck {
    fn fly(&self) -> bool {
        return true;
    }
}
impl Fly for Pig {
    fn fly(&self) -> bool {
        return false;
    }
}
fn fly_static<T: Fly>(s: T) -> bool {
    s.fly()
}
fn fly_dyn(s: &Fly) -> bool {
    s.fly()
}
let pig = Pig;
assert_eq!(fly_static::<Pig>(pig), false);
let duck = Duck;
assert_eq!(fly_static::<Duck>(duck), true);
assert_eq!(fly_dyn(&Pig), false);
assert_eq!(fly_dyn(&Duck), true);

Required Methods

fn fly(&self) -> bool

Implementors