Trait ExternalLensValue 

pub trait ExternalLensValue: Sized {
    const SIZE: usize;

    // Required method
    fn read(bytes: &[u8]) -> Self;
}

Copyable value that can be read from a checked external-account byte lens.

Required Associated Constants

const SIZE: usize

Number of bytes consumed by this lens value.

Required Methods

fn read(bytes: &[u8]) -> Self

Read a value from exactly Self::SIZE bytes.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ExternalLensValue for i8

const SIZE: usize = 1

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for i16

const SIZE: usize = 2

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for i32

const SIZE: usize = 4

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for i64

const SIZE: usize = 8

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for i128

const SIZE: usize = 16

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for u8

const SIZE: usize = 1

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for u16

const SIZE: usize = 2

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for u32

const SIZE: usize = 4

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for u64

const SIZE: usize = 8

fn read(bytes: &[u8]) -> Self

impl ExternalLensValue for u128

const SIZE: usize = 16

fn read(bytes: &[u8]) -> Self

impl<const N: usize> ExternalLensValue for [u8; N]

const SIZE: usize = N

fn read(bytes: &[u8]) -> Self

Implementors

impl ExternalLensValue for Address

const SIZE: usize = 32