zinc64-loader 0.8.0

Commodore 64 emulator loader support
Documentation 
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// This file is part of zinc64.
// Copyright (c) 2016-2019 Sebastian Jastrzebski. All rights reserved.
// Licensed under the GPLv3. See LICENSE file in the project root for full license text.

#[cfg(not(feature = "std"))]
use alloc::prelude::*;
use byteorder::ByteOrder;
use core::result;

pub type Result<T> = result::Result<T, String>;

pub trait Reader {
    fn read(&mut self, buf: &mut [u8]) -> Result<usize>;
    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>;
    fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>;
    fn consume(&mut self, amt: usize);
}

pub trait ReadBytesExt: Reader {
    #[inline]
    fn read_u8(&mut self) -> Result<u8> {
        let mut buf = [0; 1];
        self.read_exact(&mut buf)?;
        Ok(buf[0])
    }

    #[inline]
    fn read_u16<T: ByteOrder>(&mut self) -> Result<u16> {
        let mut buf = [0; 2];
        self.read_exact(&mut buf)?;
        Ok(T::read_u16(&buf))
    }

    #[inline]
    fn read_u32<T: ByteOrder>(&mut self) -> Result<u32> {
        let mut buf = [0; 4];
        self.read_exact(&mut buf)?;
        Ok(T::read_u32(&buf))
    }
}

impl<R: Reader + ?Sized> ReadBytesExt for R {}