std​::to_bytes

Traits

IterBytes
ToBytes

Trait std::to_bytes::IterBytes

pub trait IterBytes {
    fn iter_bytes(&self, lsb0: bool, f: Cb) -> bool;
}

A trait to implement in order to make a type hashable; This works in combination with the trait std::hash::Hash, and may in the future be merged with that trait or otherwise modified when default methods and trait inheritance are completed.

IterBytes should be implemented so that the extent of the produced byte stream can be discovered, given the original type. For example, the IterBytes implementation for vectors emits its length first, and enums should emit their discriminant.

Required Methods

fn iter_bytes(&self, lsb0: bool, f: Cb) -> bool

Call the provided callback f one or more times with byte-slices that should be used when computing a hash value or otherwise "flattening" the structure into a sequence of bytes. The lsb0 parameter conveys whether the caller is asking for little-endian bytes (true) or big-endian (false); this should only be relevant in implementations that represent a single multi-byte datum such as a 32 bit integer or 64 bit floating-point value. It can be safely ignored for larger structured types as they are usually processed left-to-right in declaration order, regardless of underlying memory endianness.

Implementors