Something like that? trait Callback { fn callback(&self)

Question

Something like that? trait Callback { fn callback(&self)

{
println!("default callback implementation")
}
}

and Parent and Child structs

struct Parent {}

impl Parent {
pub fn some_operation(&self) {
self.callback();
}
}

impl Callback for Parent {}

struct Child {
name: String,
}

impl Child {
pub fn some_operation(&self) {
self.callback();
}
}

impl Callback for Child {
fn callback(&self) {
println!("hello from {}", self.name)
}
}

and usage

let parent = Parent {};

let child = Child {
name: "Child".to_string(),
};

parent.some_operation();
child.some_operation();

this outputs

default callback implementation
hello from Child

0

11.04.2024

1 ответов

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Riccardo Gabellone · Accepted Answer

Riccardo Gabellone

mmh, actually I have to call Parent's some_operation() from within Child...or something like that

0

8 месяцев назад

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Something like that? trait Callback { fn callback(&self)

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