Trait PacketField 

pub trait PacketField: Sized {
    // Required methods
    fn write_to(&self, buf: &mut Vec<u8>);
    fn read_from(buf: &[u8], pos: &mut usize) -> Option<Self>;

    // Provided method
    fn encoded_len(&self) -> usize { ... }
}

Encode/decode a single field to/from a byte buffer.

Implemented for the types supported by packet!: bool, i32, i64, u32, u64, f32, f64, String, Vec<u8>.

Required Methods

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<Self>

Provided Methods

fn encoded_len(&self) -> usize

Exact number of bytes write_to appends; lets packet! allocate the buffer once. A low estimate is still correct, just slower.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl PacketField for String

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<String>

fn encoded_len(&self) -> usize

impl PacketField for Vec<u8>

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<Vec<u8>>

fn encoded_len(&self) -> usize

impl PacketField for bool

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<bool>

fn encoded_len(&self) -> usize

impl PacketField for f32

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<f32>

fn encoded_len(&self) -> usize

impl PacketField for f64

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<f64>

fn encoded_len(&self) -> usize

impl PacketField for i32

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<i32>

fn encoded_len(&self) -> usize

impl PacketField for i64

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<i64>

fn encoded_len(&self) -> usize

impl PacketField for u32

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<u32>

fn encoded_len(&self) -> usize

impl PacketField for u64

fn write_to(&self, buf: &mut Vec<u8>)

fn read_from(buf: &[u8], pos: &mut usize) -> Option<u64>

fn encoded_len(&self) -> usize

Implementors