rustlings/exercises/traits/traits5.rs

36 lines
790 B
Rust

// traits5.rs
//
// Your task is to replace the '??' sections so the code compiles.
// Don't change any line other than the marked one.
// Execute `rustlings hint traits5` or use the `hint` watch subcommand for a hint.
pub trait SomeTrait {
fn some_function(&self) -> bool {
true
}
}
pub trait OtherTrait {
fn other_function(&self) -> bool {
true
}
}
struct SomeStruct {}
struct OtherStruct {}
impl SomeTrait for SomeStruct {}
impl OtherTrait for SomeStruct {}
impl SomeTrait for OtherStruct {}
impl OtherTrait for OtherStruct {}
// YOU MAY ONLY CHANGE THE NEXT LINE
fn some_func(item: impl SomeTrait + OtherTrait) -> bool {
item.some_function() && item.other_function()
}
fn main() {
some_func(SomeStruct {});
some_func(OtherStruct {});
}