Struct spl_stake_pool::big_vec::BigVec

pub struct BigVec<'data> {
    pub data: &'data mut [u8],
}

Contains easy to use utilities for a big vector of Borsh-compatible types, to avoid managing the entire struct on-chain and blow through stack limits.

Fields

data: &'data mut [u8]

Underlying data buffer, pieces of which are serialized

Implementations

impl<'data> BigVec<'data>

pub fn len(&self) -> u32

Get the length of the vector

pub fn is_empty(&self) -> bool

Find out if the vector has no contents (as demanded by clippy)

pub fn retain<T: Pack>(
    &mut self,
    predicate: fn(_: &[u8]) -> bool
) -> Result<(), ProgramError>

Retain all elements that match the provided function, discard all others

pub fn deserialize_mut_slice<T: Pack>(
    &mut self,
    skip: usize,
    len: usize
) -> Result<Vec<&'data mut T>, ProgramError>

Extracts a slice of the data types

pub fn push<T: Pack>(&mut self, element: T) -> Result<(), ProgramError>

Add new element to the end

pub fn iter<'vec, T: Pack>(&'vec self) -> Iter<'data, 'vec, T>

Get an iterator for the type provided

pub fn iter_mut<'vec, T: Pack>(&'vec mut self) -> IterMut<'data, 'vec, T>

Get a mutable iterator for the type provided

pub fn find<T: Pack>(
    &self,
    data: &[u8],
    predicate: fn(_: &[u8], _: &[u8]) -> bool
) -> Option<&T>

Find matching data in the array

pub fn find_mut<T: Pack>(
    &mut self,
    data: &[u8],
    predicate: fn(_: &[u8], _: &[u8]) -> bool
) -> Option<&mut T>

Find matching data in the array