arctic-wt 0.1.5

Lock-free adaptive radix tree
Documentation 
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use core::marker::PhantomData;

use crate::raw::key::Read;
use crate::raw::key::Write;

pub(crate) struct Discard<R>(PhantomData<R>);

impl<R> Default for Discard<R> {
    #[inline]
    fn default() -> Self {
        Self(PhantomData)
    }
}

impl<R> core::fmt::Debug for Discard<R> {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "Discard")
    }
}

impl<R: Read> Write<R> for Discard<R> {
    type Len = ();

    fn new(_: R, _: ribbit::Packed<R::Edge>) -> (Self, Self::Len) {
        (Self(PhantomData), ())
    }

    #[inline]
    fn replace(&mut self, _: Self::Len, _: u8, _: ribbit::Packed<R::Edge>) -> Self::Len {}
}