mod sealed {
pub trait Sealed {}
}
use sealed::Sealed;
pub struct LaneCount<const LANES: usize>;
impl<const LANES: usize> LaneCount<LANES> {
pub const BITMASK_LEN: usize = (LANES + 7) / 8;
}
pub trait SupportedLaneCount: Sealed {
#[doc(hidden)]
type BitMask: Copy + Default + AsRef<[u8]> + AsMut<[u8]>;
}
impl<const LANES: usize> Sealed for LaneCount<LANES> {}
impl SupportedLaneCount for LaneCount<1> {
type BitMask = [u8; 1];
}
impl SupportedLaneCount for LaneCount<2> {
type BitMask = [u8; 1];
}
impl SupportedLaneCount for LaneCount<4> {
type BitMask = [u8; 1];
}
impl SupportedLaneCount for LaneCount<8> {
type BitMask = [u8; 1];
}
impl SupportedLaneCount for LaneCount<16> {
type BitMask = [u8; 2];
}
impl SupportedLaneCount for LaneCount<32> {
type BitMask = [u8; 4];
}
impl SupportedLaneCount for LaneCount<64> {
type BitMask = [u8; 8];
}