Trait DynEntityId 

pub trait DynEntityId:
    Any
    + Send
    + Sync
    + Debug {
    // Required methods
    fn dyn_hash(&self, state: &mut dyn Hasher);
    fn dyn_eq(&self, other: &dyn DynEntityId) -> bool;
}

A dynamic identity type for our entities.

EntityId is mostly sufficient as a table name plus an Arc<dyn Any>. But it needs some utility traits in order to accommodate our use cases, and we can’t derive or manually implement them on their own precisely because the relevant type has been erased.

This trait bridges the gap by providing dyn-compatible helpers. There’s a blanket impl for every possible valid type.

Required Methods

fn dyn_hash(&self, state: &mut dyn Hasher)

dyn-compatible hash implementation. Prefer the normal hash implemenation where possible.

fn dyn_eq(&self, other: &dyn DynEntityId) -> bool

dyn-compatible equality implementation. Prefer the normal == implementation where possible.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<T> DynEntityId for T

where T: Any + Send + Sync + Debug + Hash + Eq,