多个绑定对象类型

Created: November-22, 2018

也可以向 Static Dispatch 函数添加多个对象类型。

fn mammal_speak<T: Person + Dog>(mammal: &T) {
    println!("{0}", mammal.speak());
}

fn main() {
    let person = Person {};
    let dog = Dog {};

    mammal_speak(&person);
    mammal_speak(&dog);
}