Interface Sealed

block-buffer/src/sealed.rs:12–32

Sealed trait for buffer kinds.

/// Sealed trait for buffer kinds.
pub trait Sealed {
    #[cfg(not(feature = "zeroize"))]
    type Pos: Default + Clone;
    #[cfg(feature = "zeroize")]
    type Pos: Default + Clone + zeroize::Zeroize;

    type Overhead: ArraySize;

    const NAME: &'static str;

    fn get_pos<N: ArraySize>(buf: &Block<N>, pos: &Self::Pos) -> usize;

    fn set_pos<N: ArraySize>(buf: &mut Block<N>, pos: &mut Self::Pos, val: usize);

    /// Invariant guaranteed by a buffer kind, i.e. with correct
    /// buffer code this function always returns true.
    fn invariant(pos: usize, block_size: usize) -> bool;

    /// Split input data into slice of blocks and tail.
    fn split_blocks<N: ArraySize>(data: &[u8]) -> (&[Array<u8, N>], &[u8]);
}

impl Sealed for super::Eager {
    type Pos = ();