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MapEntry

ic_storage::adapter

Struct MapEntry 

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pub struct MapEntry<K, V> { /* private fields */ }
Expand description

Ordered map iterator retaining the collection borrow. Ordered map iterator retaining the collection borrow. Ordered map iterator retaining the collection borrow.

MapEntry

An owned key and encoded value from an ordered scan. Decoding failures trap.

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impl<K, V: Storable> MapEntry<K, V>

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pub const fn key(&self) -> &K

Borrow the decoded key.

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pub fn value(&self) -> V

Decode the value. Malformed stored bytes trap.

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pub fn into_pair(self) -> (K, V)

Consume the entry and decode its value.

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pub fn into_key(self) -> K

Consume only the key without decoding its value.

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pub fn into_value(self) -> V

Consume and decode only the value.

Auto Trait Implementations§

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impl<K, V> Forget for MapEntry<K, V>

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impl<K, V> Freeze for MapEntry<K, V>
where K: Freeze, PhantomData<V>: Freeze,

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impl<K, V> RefUnwindSafe for MapEntry<K, V>
where K: RefUnwindSafe, PhantomData<V>: RefUnwindSafe,

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impl<K, V> Send for MapEntry<K, V>
where K: Send, PhantomData<V>: Send,

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impl<K, V> Sync for MapEntry<K, V>
where K: Sync, PhantomData<V>: Sync,

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impl<K, V> Unpin for MapEntry<K, V>
where K: Unpin, PhantomData<V>: Unpin,

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impl<K, V> UnsafeUnpin for MapEntry<K, V>
where K: UnsafeUnpin, PhantomData<V>: UnsafeUnpin,

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impl<K, V> UnwindSafe for MapEntry<K, V>
where K: UnwindSafe, PhantomData<V>: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.