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
impl<T: Hash + Zeroable> Hash for NonZero<T>impl<Ret> Hash for fn() -> Retimpl<Ret> Hash for extern "C" fn() -> Retimpl<Ret> Hash for unsafe fn() -> Retimpl<Ret> Hash for unsafe extern "C" fn() -> Retimpl<Ret, A> Hash for fn(A) -> Retimpl<Ret, A> Hash for extern "C" fn(A) -> Retimpl<Ret, A> Hash for unsafe fn(A) -> Retimpl<Ret, A> Hash for unsafe extern "C" fn(A) -> Retimpl<Ret, A, B> Hash for fn(A, B) -> Retimpl<Ret, A, B> Hash for extern "C" fn(A, B) -> Retimpl<Ret, A, B> Hash for unsafe fn(A, B) -> Retimpl<Ret, A, B> Hash for unsafe extern "C" fn(A, B) -> Retimpl<Ret, A, B, C> Hash for fn(A, B, C) -> Retimpl<Ret, A, B, C> Hash for extern "C" fn(A, B, C) -> Retimpl<Ret, A, B, C> Hash for unsafe fn(A, B, C) -> Retimpl<Ret, A, B, C> Hash for unsafe extern "C" fn(A, B, C) -> Retimpl<Ret, A, B, C, D> Hash for fn(A, B, C, D) -> Retimpl<Ret, A, B, C, D> Hash for extern "C" fn(A, B, C, D) -> Retimpl<Ret, A, B, C, D> Hash for unsafe fn(A, B, C, D) -> Retimpl<Ret, A, B, C, D> Hash for unsafe extern "C" fn(A, B, C, D) -> Retimpl<Ret, A, B, C, D, E> Hash for fn(A, B, C, D, E) -> Retimpl<Ret, A, B, C, D, E> Hash for extern "C" fn(A, B, C, D, E) -> Retimpl<Ret, A, B, C, D, E> Hash for unsafe fn(A, B, C, D, E) -> Retimpl<Ret, A, B, C, D, E> Hash for unsafe extern "C" fn(A, B, C, D, E) -> Retimpl<Ret, A, B, C, D, E, F> Hash for fn(A, B, C, D, E, F) -> Retimpl<Ret, A, B, C, D, E, F> Hash for extern "C" fn(A, B, C, D, E, F) -> Retimpl<Ret, A, B, C, D, E, F> Hash for unsafe fn(A, B, C, D, E, F) -> Retimpl<Ret, A, B, C, D, E, F> Hash for unsafe extern "C" fn(A, B, C, D, E, F) -> Retimpl<Ret, A, B, C, D, E, F, G> Hash for fn(A, B, C, D, E, F, G) -> Retimpl<Ret, A, B, C, D, E, F, G> Hash for extern "C" fn(A, B, C, D, E, F, G) -> Retimpl<Ret, A, B, C, D, E, F, G> Hash for unsafe fn(A, B, C, D, E, F, G) -> Retimpl<Ret, A, B, C, D, E, F, G> Hash for unsafe extern "C" fn(A, B, C, D, E, F, G) -> Retimpl<Ret, A, B, C, D, E, F, G, H> Hash for fn(A, B, C, D, E, F, G, H) -> Retimpl<Ret, A, B, C, D, E, F, G, H> Hash for extern "C" fn(A, B, C, D, E, F, G, H) -> Retimpl<Ret, A, B, C, D, E, F, G, H> Hash for unsafe fn(A, B, C, D, E, F, G, H) -> Retimpl<Ret, A, B, C, D, E, F, G, H> Hash for unsafe extern "C" fn(A, B, C, D, E, F, G, H) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I> Hash for fn(A, B, C, D, E, F, G, H, I) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I> Hash for extern "C" fn(A, B, C, D, E, F, G, H, I) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I> Hash for unsafe fn(A, B, C, D, E, F, G, H, I) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I> Hash for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J> Hash for fn(A, B, C, D, E, F, G, H, I, J) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J> Hash for extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J> Hash for unsafe fn(A, B, C, D, E, F, G, H, I, J) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J> Hash for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K> Hash for fn(A, B, C, D, E, F, G, H, I, J, K) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K> Hash for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K> Hash for unsafe fn(A, B, C, D, E, F, G, H, I, J, K) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K> Hash for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Hash for fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Hash for extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Hash for unsafe fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Retimpl<Ret, A, B, C, D, E, F, G, H, I, J, K, L> Hash for unsafe extern "C" fn(A, B, C, D, E, F, G, H, I, J, K, L) -> Retimpl<T: ?Sized> Hash for PhantomData<T>impl Hash for TypeIdimpl<T: Hash> Hash for [T; 0]impl<T: Hash> Hash for [T; 1]impl<T: Hash> Hash for [T; 2]impl<T: Hash> Hash for [T; 3]impl<T: Hash> Hash for [T; 4]impl<T: Hash> Hash for [T; 5]impl<T: Hash> Hash for [T; 6]impl<T: Hash> Hash for [T; 7]impl<T: Hash> Hash for [T; 8]impl<T: Hash> Hash for [T; 9]impl<T: Hash> Hash for [T; 10]impl<T: Hash> Hash for [T; 11]impl<T: Hash> Hash for [T; 12]impl<T: Hash> Hash for [T; 13]impl<T: Hash> Hash for [T; 14]impl<T: Hash> Hash for [T; 15]impl<T: Hash> Hash for [T; 16]impl<T: Hash> Hash for [T; 17]impl<T: Hash> Hash for [T; 18]impl<T: Hash> Hash for [T; 19]impl<T: Hash> Hash for [T; 20]impl<T: Hash> Hash for [T; 21]impl<T: Hash> Hash for [T; 22]impl<T: Hash> Hash for [T; 23]impl<T: Hash> Hash for [T; 24]impl<T: Hash> Hash for [T; 25]impl<T: Hash> Hash for [T; 26]impl<T: Hash> Hash for [T; 27]impl<T: Hash> Hash for [T; 28]impl<T: Hash> Hash for [T; 29]impl<T: Hash> Hash for [T; 30]impl<T: Hash> Hash for [T; 31]impl<T: Hash> Hash for [T; 32]impl<T: Hash> Hash for Option<T>impl<T: Hash, E: Hash> Hash for Result<T, E>impl Hash for u8impl Hash for u16impl Hash for u32impl Hash for u64impl Hash for usizeimpl Hash for i8impl Hash for i16impl Hash for i32impl Hash for i64impl Hash for isizeimpl Hash for boolimpl Hash for charimpl Hash for strimpl Hash for ()impl<A: Hash> Hash for (A,)impl<A: Hash, B: Hash> Hash for (A, B)impl<A: Hash, B: Hash, C: Hash> Hash for (A, B, C)impl<A: Hash, B: Hash, C: Hash, D: Hash> Hash for (A, B, C, D)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash> Hash for (A, B, C, D, E)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash> Hash for (A, B, C, D, E, F)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash> Hash for (A, B, C, D, E, F, G)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash> Hash for (A, B, C, D, E, F, G, H)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash> Hash for (A, B, C, D, E, F, G, H, I)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash, J: Hash> Hash for (A, B, C, D, E, F, G, H, I, J)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash, J: Hash, K: Hash> Hash for (A, B, C, D, E, F, G, H, I, J, K)impl<A: Hash, B: Hash, C: Hash, D: Hash, E: Hash, F: Hash, G: Hash, H: Hash, I: Hash, J: Hash, K: Hash, L: Hash> Hash for (A, B, C, D, E, F, G, H, I, J, K, L)impl<T: Hash> Hash for [T]impl<'a, T: ?Sized + Hash> Hash for &'a Timpl<'a, T: ?Sized + Hash> Hash for &'a mut Timpl<T> Hash for *const Timpl<T> Hash for *mut T