Trait CacheKey 

pub trait CacheKey:
    DynHash
    + DynEq
    + Debug
    + Send
    + Sync {
    // Required methods
    fn as_any(&self) -> &dyn Any;
    fn type_name(&self) -> &'static str;
}

Trait for types that can serve as cache keys.

This trait combines object-safe hashing, equality, and debug formatting. It is automatically implemented for all types that implement Hash + Eq + Debug + Send + Sync + 'static.

Object Safety

This trait is object-safe, allowing Arc<dyn CacheKey> to be used in hash maps and other collections.

Required Methods

fn as_any(&self) -> &dyn Any

Get the key as Any for downcasting.

fn type_name(&self) -> &'static str

Get the type name for this key.

Trait Implementations

impl<'hash> Hash for dyn CacheKey + 'hash

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

Feeds this value into the given Hasher.

impl<'hash> Hash for dyn CacheKey + Send + 'hash

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

Feeds this value into the given Hasher.

impl<'hash> Hash for dyn CacheKey + Sync + 'hash

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

Feeds this value into the given Hasher.

impl<'hash> Hash for dyn CacheKey + Send + Sync + 'hash

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

Feeds this value into the given Hasher.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: Hash + Eq + Debug + Send + Sync + 'static> CacheKey for T