Struct substrate_subxt::staking::HistoryDepthStore

pub struct HistoryDepthStore<T: Staking> {
    pub _runtime: PhantomData<T>,
}

Number of eras to keep in history.

Information is kept for eras in [current_era - history_depth; current_era].

Must be more than the number of eras delayed by session otherwise. I.e. active era must always be in history. I.e. active_era > current_era - history_depth must be guaranteed.

Fields

_runtime: PhantomData<T>

Marker for the runtime

Trait Implementations

impl<T: Clone + Staking> Clone for HistoryDepthStore<T>

fn clone(&self) -> HistoryDepthStore<T>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Copy + Staking> Copy for HistoryDepthStore<T>

impl<T: Debug + Staking> Debug for HistoryDepthStore<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Staking> Decode for HistoryDepthStore<T> where
    PhantomData<T>: Decode,
    PhantomData<T>: Decode, 

fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

impl<T: Default + Staking> Default for HistoryDepthStore<T>

fn default() -> HistoryDepthStore<T>

Returns the "default value" for a type.

impl<T: Staking> Encode for HistoryDepthStore<T> where
    PhantomData<T>: Encode,
    PhantomData<T>: Encode, 

fn encode_to<__CodecOutputEdqy: Output>(
    &self,
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R

Convert self to a slice and then invoke the given closure with it.

pub fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

impl<T: Staking> EncodeLike<HistoryDepthStore<T>> for HistoryDepthStore<T> where
    PhantomData<T>: Encode,
    PhantomData<T>: Encode, 

impl<T: Staking> Store<T> for HistoryDepthStore<T>

const MODULE: &'static str

Module name.

const FIELD: &'static str

Field name.

type Returns = u32

Return type.

fn prefix(metadata: &Metadata) -> Result<StorageKey, MetadataError>

Returns the key prefix for storage maps

fn key(&self, metadata: &Metadata) -> Result<StorageKey, MetadataError>

Returns the StorageKey.

fn default(&self, metadata: &Metadata) -> Result<Self::Returns, MetadataError>

Returns the default value.