Trait core::hash::Hash [−] [src]

pub trait Hash {
    fn hash<H: Hasher>(&self, state: &mut H);

    fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where Self: Sized { ... }
}

A hashable type.

The H type parameter is an abstract hash state that is used by the Hash to compute the hash.

If you are also implementing Eq, there is an additional property that is important:

k1 == k2 -> hash(k1) == hash(k2)

In other words, if two keys are equal, their hashes should also be equal. HashMap and HashSet both rely on this behavior.

This trait can be used with #[derive].

Required Methods

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the state given, updating the hasher as necessary.

Provided Methods

fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where Self: Sized1.3.0

Feeds a slice of this type into the state provided.

Implementors