Struct provenance::Key

pub struct Key<Provenance> { /* fields omitted */ }

A lightweight key referencing a value stored in a ProvenanceMap or SeparateProvenanceMap.

Can only be created by methods on such map and thus will always be valid for the map that created it. Further, the map that creates the key "tags" it with it's provenance. And since there only may be one map with any given provenance, it is guaranteed that if a key match the required type signature for retrieving a value from a map, then that key were created by that map and reference a value in that map.

Trait Implementations

impl<Provenance> Clone for Key<Provenance>

pub fn clone(&self) -> Self

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<Provenance> Copy for Key<Provenance>

impl<Provenance> Debug for Key<Provenance>

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<Provenance> Eq for Key<Provenance>

impl<Provenance> Hash for Key<Provenance>

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<Provenance> PartialEq<Key<Provenance>> for Key<Provenance>

pub fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.