Struct KeyList 

pub struct KeyList { /* private fields */ }

Stores key records (u64) forming the Trie structure. Index 0 is reserved as null.

Implementations

impl KeyList

pub fn new() -> Self

pub fn push(&mut self, record: u64) -> u16

Appends a key record and returns its index.

Examples

use state_engine::common::pool::KeyList;

let mut list = KeyList::new();
let idx = list.push(0xDEAD_BEEF_u64);

assert_ne!(idx, 0);
assert_eq!(list.get(idx), Some(0xDEAD_BEEF_u64));
assert_eq!(list.get(0), Some(0u64)); // null slot
assert_eq!(list.get(999), None);

// set overwrites in place
list.set(idx, 0xCAFE);
assert_eq!(list.get(idx), Some(0xCAFE));

pub fn get(&self, index: u16) -> Option<u64>

Returns the key record at the given index.

pub fn set(&mut self, index: u16, record: u64)

Updates the key record at the given index.

Trait Implementations

impl Default for KeyList

fn default() -> Self

Returns the “default value” for a type.