Trait Buffer 

pub trait Buffer: Sized + WriteBytesExt {
    type Result;

    // Required methods
    fn start() -> Self;
    fn result(self) -> Self::Result;

    // Provided method
    fn start_hint(_l: usize) -> Self { ... }
}

Trait for writers which will not fail in normal operation with small amounts of data, e.g., Vec<u8>. Moreover having a special trait allows us to implement it for other types, such as the SHA Digest.

Required Associated Types

type Result

Required Methods

fn start() -> Self

fn result(self) -> Self::Result

Provided Methods

fn start_hint(_l: usize) -> Self

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Buffer for Vec<u8>

type Result = Vec<u8>

fn start() -> Vec<u8>

fn start_hint(l: usize) -> Vec<u8>

fn result(self) -> <Vec<u8> as Buffer>::Result

Implementors

impl Buffer for RandomOracle

This implementation allows the use of a random oracle without intermediate allocations of byte buffers.

type Result = GenericArray<u8, <CoreWrapper<Sha3_256Core> as OutputSizeUser>::OutputSize>