Trait indexmap::Equivalent [−][src]
pub trait Equivalent<K: ?Sized> {
fn equivalent(&self, key: &K) -> bool;
}Expand description
Key equivalence trait.
This trait allows hash table lookup to be customized.
It has one blanket implementation that uses the regular Borrow solution,
just like HashMap and BTreeMap do, so that you can pass &str to lookup
into a map with String keys and so on.
Contract
The implementor must hash like K, if it is hashable.
Required methods
fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to key and return true if they are equal.