stdto 0.14.0

Stdto provides a set of functional traits for conversion between various data representations.
Documentation 
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use std::{collections::BTreeMap, error::Error};

use stdto::prelude::*;

#[stdto::json]
#[derive(Debug, PartialEq, Eq)]
struct Test {
    a: u32,
    b: String,
    c: [u8; 32],
    d: Vec<u8>,
    e: BTreeMap<u8, u64>,
}

fn main() -> Result<(), Box<dyn Error>> {
    let test = Test {
        a: 1,
        b: "hello".to_owned(),
        c: [5; 32],
        d: vec![3; 32],
        e: BTreeMap::from([(1, 10), (2, 20)]),
    };
    let json = test.to_json();
    let test2 = Test::from_json(json);
    assert_eq!(test, test2);

    let test = Test {
        a: 100,
        b: "world".to_owned(),
        c: [14; 32],
        d: vec![12; 25],
        e: BTreeMap::from([(3, 10), (4, 20)]),
    };
    let json = test.to_json_pretty();
    let test2 = Test::from_json(json);
    assert_eq!(test, test2);

    test_all();
    Ok(())
}

#[stdto::bytes]
#[stdto::hash]
#[stdto::json]
#[derive(Debug, PartialEq, Eq)]
struct All {
    a: u32,
    b: String,
    c: [u8; 32],
    d: Vec<u8>,
    e: BTreeMap<u8, u64>,
}

/// Test to_bytes, from_bytes, to_hash, to_json, from_json, to_hex, from_hex
fn test_all() {
    let all = All {
        a: 1,
        b: "hello".to_owned(),
        c: [5; 32],
        d: vec![3; 32],
        e: BTreeMap::from([(1, 10), (2, 20)]),
    };
    let bytes = all.to_bytes();
    let all2 = All::from_bytes(bytes);
    assert_eq!(all, all2);

    let hash: [u8; 32] = all.to_hash::<sha2::Sha256>().into();
    assert_eq!(
        hash.to_hex(),
        "3d6c0032eeecbc00e38abb4ae0d92006480faee86494ee42270ad05501ef3791"
    );
    assert_eq!(
        hash.to_upper_hex(),
        "3D6C0032EEECBC00E38ABB4AE0D92006480FAEE86494EE42270AD05501EF3791"
    );
    assert_eq!(
        hash.to_hex_with_0x(),
        "0x3d6c0032eeecbc00e38abb4ae0d92006480faee86494ee42270ad05501ef3791"
    );

    let json = all.to_json();
    let all2 = All::from_json(json);
    assert_eq!(all, all2);

    let json = all.to_json_pretty();
    let all2 = All::from_json(json);
    assert_eq!(all, all2);
}