bincode.rs

// -*- mode:rust; coding:utf-8-unix; -*-

//! bincode.rs

//  Copyright 2017 hanepjiv
//  @author hanepjiv <hanepjiv@gmail.com>
//  @copyright The MIT License (MIT) / Apache License Version 2.0
//  @since 2018/01/09
//  @date 2018/01/09

// ////////////////////////////////////////////////////////////////////////////
// attribute  =================================================================
#![deny(anonymous_parameters, box_pointers, missing_copy_implementations,
        missing_debug_implementations, missing_docs, trivial_casts,
        trivial_numeric_casts, unsafe_code, unused_extern_crates,
        unstable_features, unused_import_braces, unused_qualifications,
        unused_results, variant_size_differences, const_err, dead_code,
        deprecated, illegal_floating_point_literal_pattern, improper_ctypes,
        late_bound_lifetime_arguments, non_camel_case_types,
        non_shorthand_field_patterns, non_snake_case, non_upper_case_globals,
        no_mangle_generic_items, overflowing_literals, path_statements,
        patterns_in_fns_without_body, plugin_as_library, private_in_public,
        private_no_mangle_fns, private_no_mangle_statics,
        renamed_and_removed_lints, stable_features, unconditional_recursion,
        unions_with_drop_fields, unknown_lints, unreachable_code,
        unreachable_patterns, unused_allocation, unused_assignments,
        unused_attributes, unused_comparisons, unused_doc_comment,
        unused_features, unused_imports, unused_macros, unused_must_use,
        unused_mut, unused_parens, unused_unsafe, unused_variables,
        while_true)]
#![warn(dead_code)]
#![allow(box_pointers, unsafe_code, trivial_casts, trivial_numeric_casts)]
// extern  ====================================================================
extern crate bincode;
// use  =======================================================================

// ////////////////////////////////////////////////////////////////////////////
// ============================================================================
fn app() -> ::std::result::Result<(), Box<::std::error::Error>> {
    let x = (0i32, 1i32, None, Some(1i32));
    let dump = ::bincode::serialize(&x, ::bincode::Infinite)?;
    let y =
        ::bincode::deserialize::<(i32, i32, Option<i32>, Option<i32>)>(&dump)?;
    assert_eq!(x, y);
    Ok(println!("{:?} => {:?} => {:?}", x, dump, y))
    // (0, 1, None, Some(1)) => [0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0] => (0, 1, None, Some(1))
    //
    // 0i32             => [0, 0, 0, 0]
    // 1i32             => [1, 0, 0, 0]
    // None             => [0]
    // Some(1i32)       => [1, 1, 0, 0, 0]
}
// ============================================================================
fn main() {
    if let Err(x) = app() {
        eprintln!("{:?}", x);
    }
}