Struct gekko::runtime::polkadot::extrinsics::staking::SetHistoryDepth

pub struct SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode,  {
    pub new_history_depth: A,
    pub _era_items_deleted: B,
}

Set HistoryDepth value. This function will delete any history information

Documentation (provided by the runtime metadata)

Set HistoryDepth value. This function will delete any history information when HistoryDepth is reduced.

Parameters:

• new_history_depth: The new history depth you would like to set.
• era_items_deleted: The number of items that will be deleted by this dispatch. This should report all the storage items that will be deleted by clearing old era history. Needed to report an accurate weight for the dispatch. Trusted by Root to report an accurate number.

Origin must be root.

• E: Number of history depths removed, i.e. 10 -> 7 = 3
• Weight: O(E)
• DB Weight:
  • Reads: Current Era, History Depth
  • Writes: History Depth
  • Clear Prefix Each: Era Stakers, EraStakersClipped, ErasValidatorPrefs
  • Writes Each: ErasValidatorReward, ErasRewardPoints, ErasTotalStake, ErasStartSessionIndex

Type Disclaimer

This library makes no assumptions about parameter types and must be specified manually as generic types. Each field contains a type description which can serve as a hint on what type is being expected, as provided by the runtime meatadata. See the common module for common types which can be used.

Fields

new_history_depth: A

Type description: Compact<EraIndex>

_era_items_deleted: B

Type description: Compact<u32>

Trait Implementations

impl<A: Clone, B: Clone> Clone for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

fn clone(&self) -> SetHistoryDepth<A, B>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<A: Debug, B: Debug> Debug for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

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

Formats the value using the given formatter.

impl<A, B> Decode for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

fn decode<SI: Input>(input: &mut SI) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn skip<I>(input: &mut I) -> Result<(), Error> where
    I: Input, 

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<A, B> Encode for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

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

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

fn size_hint(&self) -> usize

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

fn encode_to<T>(&self, dest: &mut T) where
    T: Output + ?Sized, 

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

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

Convert self to an owned vector.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<A: PartialEq, B: PartialEq> PartialEq<SetHistoryDepth<A, B>> for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

fn eq(&self, other: &SetHistoryDepth<A, B>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &SetHistoryDepth<A, B>) -> bool

This method tests for !=.

impl<A: Eq, B: Eq> Eq for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

impl<A, B> StructuralEq for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode, 

impl<A, B> StructuralPartialEq for SetHistoryDepth<A, B> where
    A: Encode + Decode,
    B: Encode + Decode,