solid-core 0.1.1

Core for the `solid` crate. Not intended to be used directly.
Documentation 
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use crate::{
    decode::Decode,
    encode::Encode,
    into_type::IntoType,
};
use std::{
    array::LengthAtMost32,
    convert::TryFrom,
};

pub struct BytesFix<'a, const N: usize>(pub &'a [u8; N]);

impl<'a, const N: usize> Encode for BytesFix<'a, N> {
    fn encode(self) -> Vec<u8> {
        let mut buf = vec![0u8; 32];
        buf[0..N].copy_from_slice(&self.0[..]);
        buf
    }

    fn required_len(&self) -> u64 {
        32
    }

    fn is_dynamic() -> bool {
        false
    }
}

impl<'a, const N: usize> IntoType for BytesFix<'a, N> {
    fn into_type() -> String {
        format!("bytes{}", N)
    }
}

pub trait LengthAtLeast1 {}

macro_rules! impl_length_at_least_1 {
    ($($N:literal)+) => {
        $(
            impl<T> LengthAtLeast1 for [T; $N] {}
        )+
    }
}

impl_length_at_least_1! {
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    30 31 32
}

impl<'a, const N: usize> Decode<'a> for BytesFix<'a, N>
where
    [u8; N]: LengthAtMost32 + LengthAtLeast1,
{
    fn decode(buf: &'a [u8]) -> Self {
        BytesFix::<N>(TryFrom::try_from(&buf[0..N]).unwrap())
    }
}