libpacket-derive 0.1.1

Automatic bit manipulation for binary data formats
Documentation 
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// Copyright (c) 2015 Robert Clipsham <robert@octarineparrot.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use libpacket_core::types::*;
use libpacket_derive::Packet;

#[derive(Packet)]
pub struct WithVariableLengthField {
    banana: u32be,
    #[length = "3"]
    var_length: Vec<u8>,
    #[payload]
    payload: Vec<u8>,
}

fn main() {
    let data = [1, 1, 1, 1, 2, 3, 4, 5, 6];
    let packet = WithVariableLengthFieldPacket::new(&data[..]).unwrap();
    assert_eq!(packet.get_var_length(), vec![2, 3, 4]);
}