Trait Wrapper

Source

pub trait Wrapper {
    type Inner;

    // Required methods
    fn from_inner(inner: Self::Inner) -> Self;
    fn as_inner(&self) -> &Self::Inner;
    fn into_inner(self) -> Self::Inner;

    // Provided methods
    fn to_inner(&self) -> Self::Inner
       where Self::Inner: Clone { ... }
    fn copy(&self) -> Self
       where Self: Sized,
             Self::Inner: Copy { ... }
}

Expand description

Trait defining wrapped types (“newtypes” in rust terminology). Wrapped types are used for allowing implemeting foreign traits to foreign types: https://doc.rust-lang.org/stable/rust-by-example/generics/new_types.html

Trait defines convenient methods for accessing inner data, construct and deconstruct newtype. It also serves as a marker trait for newtypes.

The trait works well with #[derive(Wrapper)] from amplify_derive crate