apoelstra

fn iterator_ref(opt: &Option<bool>) -> Box<Iterator<u8>> {
  match opt {
    &Some(_) => box [1u8].iter().map(|n| *n) as Box<Iterator<u8>>,
    &None    => box [0u8].iter().map(|n| *n) as Box<Iterator<u8>>,
  }
}

fn main() {
  let mut myref = iterator_ref(&Some(true));

apoelstra

  fn serialize_iter<'a>(&'a self) -> SerializeIter<'a> {
/*
println!("serialize opt {:} as {:}", self.is_some(),
    (match self {
      &Some(ref dat) => SerializeIter {
        data_iter: Some(box [1u8].iter().map(|n| *n) as Box<Iterator<u8>>),
        sub_iter_iter: box vec![ dat as &Serializable ].move_iter(),
        sub_iter: None,
        sub_started: false
      },

apoelstra

fn serialize_iter<'a>(&'a self) -> SerializeIter<'a> {
/*
println!("serialize opt {:} as {:}", self.is_some(),
    (match self {
      &Some(ref dat) => SerializeIter {
        data_iter: Some(box [1u8].iter().map(|n| *n) as Box<Iterator<u8>>),
        sub_iter_iter: box vec![ dat as &Serializable ].move_iter(),
        sub_iter: None,
        sub_started: false
      },

apoelstra

use std::io::{IoResult, InvalidInput, standard_error};

/// Serialization trait
trait Serial {
  fn deserialize<I: Iterator<u8>>(iter: I) -> IoResult<Self>;
}

/// Serialization for Option<Serial>
impl<T:Serial> Serial for Option<T> {

apoelstra

// Rust Bitcoin Library
// Written in 2014 by
//   Andrew Poelstra <apoelstra@wpsoftware.net>
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to
// the public domain worldwide. This software is distributed without
// any warranty.
//
// You should have received a copy of the CC0 Public Domain Dedication

apoelstra

// Rust Bitcoin Library
// Written in 2014 by
//   Andrew Poelstra <apoelstra@wpsoftware.net>
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to
// the public domain worldwide. This software is distributed without
// any warranty.
//
// You should have received a copy of the CC0 Public Domain Dedication

apoelstra

// Rust Bitcoin Library
// Written in 2014 by
//   Andrew Poelstra <apoelstra@wpsoftware.net>
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to
// the public domain worldwide. This software is distributed without
// any warranty.
//
// You should have received a copy of the CC0 Public Domain Dedication