Use associated types in Doublets trait #5
Description
Use Doublets<Item = T> instead of Doublets<T>
This is idiomatically more correct. For example – AsRef and Deref:
let string = "hello".to_string();
// we want `AsRef<[u8]>`
let bytes: &[u8] = string.as_ref();
// we want `AsRef<str>`
let str: &str = string.as_ref();let string = "hello".to_string();
let str = &*string; // we are given `str`This will also make generic storing doublets than easier.
struct Wrapper<T, D: Doublets<T>> {
doublets: D,
_marker: PhantomData<T>,
}struct Wrapper<D: Doublets> {
doublets: D,
}
// `T` is `D::Item`