Trait cw_storage_plus::CwIntKey

pub trait CwIntKey: Sized + Copy {
    type Buf: AsRef<[u8]> + AsMut<[u8]> + Into<Vec<u8>> + Default;
    fn to_cw_bytes(&self) -> Self::Buf;
    fn from_cw_bytes(bytes: Self::Buf) -> Self;
}

Our int keys are simply the big-endian representation bytes for unsigned ints, but “sign-flipped” (xored msb) big-endian bytes for signed ints.

So that the representation of signed integers is in the right lexicographical order.

Associated Types

type Buf: AsRef<[u8]> + AsMut<[u8]> + Into<Vec<u8>> + Default

Required methods

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

Implementations on Foreign Types

impl CwIntKey for u8

type Buf = [u8; 1]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for u16

type Buf = [u8; 2]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for u32

type Buf = [u8; 4]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for u64

type Buf = [u8; 8]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for u128

type Buf = [u8; 16]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for i8

type Buf = [u8; 1]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for i16

type Buf = [u8; 2]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for i32

type Buf = [u8; 4]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for i64

type Buf = [u8; 8]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

impl CwIntKey for i128

type Buf = [u8; 16]

fn to_cw_bytes(&self) -> Self::Buf

fn from_cw_bytes(bytes: Self::Buf) -> Self

Implementors