embedded-hal-compat 0.13.0

Compatibility layer for interoperability between different embedded-hal versions
Documentation 
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#[cfg(feature = "embedded-io")]
mod optional {
    use embedded_hal_compat::ForwardCompat;

    #[derive(Debug)]
    enum ImplError {
        _Something,
    }

    impl embedded_io::Error for ImplError {
        fn kind(&self) -> embedded_io::ErrorKind {
            embedded_io::ErrorKind::Other
        }
    }

    struct Peripheral;

    impl eh0_2::blocking::serial::Write<u8> for Peripheral {
        type Error = ImplError;

        fn bwrite_all(&mut self, _buffer: &[u8]) -> Result<(), Self::Error> {
            Ok(())
        }
        fn bflush(&mut self) -> Result<(), Self::Error> {
            Ok(())
        }
    }

    impl eh0_2::serial::Write<u8> for Peripheral {
        type Error = ImplError;

        fn write(&mut self, _word: u8) -> nb::Result<(), Self::Error> {
            Ok(())
        }
        fn flush(&mut self) -> nb::Result<(), Self::Error> {
            Ok(())
        }
    }

    #[test]
    fn can_forward() {
        let periph_0_2 = Peripheral;
        let mut periph_1_0 = periph_0_2.forward();
        assert_eq!(
            Some(1),
            embedded_io::Write::write(&mut periph_1_0, &[0]).ok()
        );
        assert!(embedded_io::Write::flush(&mut periph_1_0).is_ok());
    }
}