[][src]Struct sc_client_api::backend::KeyIterator

pub struct KeyIterator<'a, State, Block> { /* fields omitted */ }

An Iterator that iterates keys in a given block under a prefix.

Implementations

impl<'a, State, Block> KeyIterator<'a, State, Block>[src]

pub fn new(
    state: State,
    prefix: Option<&'a StorageKey>,
    current_key: Vec<u8>
) -> Self
[src]

create a KeyIterator instance

Trait Implementations

impl<'a, State, Block> Iterator for KeyIterator<'a, State, Block> where
    Block: BlockT,
    State: StateBackend<HashFor<Block>>, 
[src]

type Item = StorageKey

The type of the elements being iterated over.

Auto Trait Implementations

impl<'a, State, Block> RefUnwindSafe for KeyIterator<'a, State, Block> where
    Block: RefUnwindSafe,
    State: RefUnwindSafe

impl<'a, State, Block> Send for KeyIterator<'a, State, Block> where
    Block: Send,
    State: Send

impl<'a, State, Block> Sync for KeyIterator<'a, State, Block> where
    Block: Sync,
    State: Sync

impl<'a, State, Block> Unpin for KeyIterator<'a, State, Block> where
    Block: Unpin,
    State: Unpin

impl<'a, State, Block> UnwindSafe for KeyIterator<'a, State, Block> where
    Block: UnwindSafe,
    State: UnwindSafe

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> CheckedConversion for T[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<I> IntoIterator for I where
    I: Iterator
[src]

type Item = <I as Iterator>::Item

The type of the elements being iterated over.

type IntoIter = I

Which kind of iterator are we turning this into?

impl<T, Outer> IsWrappedBy<Outer> for T where
    Outer: AsRef<T> + AsMut<T> + From<T>,
    T: From<Outer>, 
[src]

fn from_ref(outer: &Outer) -> &T[src]

Get a reference to the inner from the outer.

fn from_mut(outer: &mut Outer) -> &mut T[src]

Get a mutable reference to the inner from the outer.

impl<I> IteratorRandom for I where
    I: Iterator
[src]

impl<T> MaybeRefUnwindSafe for T where
    T: RefUnwindSafe
[src]

impl<T> ParallelBridge for T where
    T: Send + Iterator,
    <T as Iterator>::Item: Send
[src]

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> SaturatedConversion for T[src]

impl<T> SendSyncUnwindSafe for T where
    T: Send + Sync + UnwindSafe + ?Sized

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

impl<S, T> UncheckedInto<T> for S where
    T: UncheckedFrom<S>, 
[src]

impl<T, S> UniqueSaturatedInto<T> for S where
    S: TryInto<T>,
    T: Bounded
[src]

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,