Trait gear_common::storage::Dequeue

pub trait Dequeue {
    type Key;
    type Value;
    type Error;

    // Required methods
    fn mutate_values<F: FnMut(Self::Value) -> Self::Value>(f: F);
    fn pop_back() -> Result<Option<Self::Value>, Self::Error>;
    fn pop_front() -> Result<Option<Self::Value>, Self::Error>;
    fn push_back(key: Self::Key, value: Self::Value) -> Result<(), Self::Error>;
    fn push_front(key: Self::Key, value: Self::Value) -> Result<(), Self::Error>;
    fn clear();
}

Represents dequeue implementation.

Required Associated Types

type Key

Dequeue’s elements stored key.

type Value

Dequeue’s elements stored value.

type Error

Dequeue error type.

Required Methods

fn mutate_values<F: FnMut(Self::Value) -> Self::Value>(f: F)

Mutates all stored value with given function.

fn pop_back() -> Result<Option<Self::Value>, Self::Error>

Removes and returns tail value of the dequeue, if present.

fn pop_front() -> Result<Option<Self::Value>, Self::Error>

Removes and returns head value of the dequeue, if present.

fn push_back(key: Self::Key, value: Self::Value) -> Result<(), Self::Error>

Inserts value to the end of dequeue with given key.

fn push_front(key: Self::Key, value: Self::Value) -> Result<(), Self::Error>

Inserts value to the beginning of dequeue with given key.

fn clear()

Removes all values.

Object Safety

This trait is not object safe.

Implementors

impl<Key, Value, Error, HVS, TVS, MS, Callbacks> Dequeue for DequeueImpl<Key, Value, Error, HVS, TVS, MS, Callbacks>

where Key: Clone + PartialEq, Error: DequeueError, HVS: ValueStorage<Value = Key>, TVS: ValueStorage<Value = Key>, MS: MapStorage<Key = Key, Value = LinkedNode<Key, Value>>, Callbacks: DequeueCallbacks<Value = Value>,

type Key = Key

type Value = Value

type Error = Error