//! I currently only support the schism tracker file format.

use core::num::NonZeroU32;
pub mod err;
pub mod header;
pub mod instrument;
pub mod pattern;
pub mod sample;

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
pub struct InFilePtr(pub(crate) core::num::NonZeroU32);

impl InFilePtr {
    pub fn get(self) -> NonZeroU32 {
        self.0
    }
}

/// the usize in both variants gives the amount of read or written bytes. If this is zero then it needs a bigger slice at that point
/// in the parsing. Every function should document what the biggest required slice is, so just using that size everytime
/// should be possible.
///
/// Polling a parser after it was done will return Pending(0)
#[derive(Debug)]
pub enum SansIO<F> {
    Finished(F, usize),
    Pending(usize),
}

type SansIOWritten = SansIO<()>;