use crate::pos::PosCounter;

pub struct IndexPosCounter {
    index: usize,
}

impl Default for IndexPosCounter {
    fn default() -> Self {
        return IndexPosCounter { index: 0 };
    }
}

impl<C: Copy> PosCounter<C> for IndexPosCounter {
    type P = usize;

    fn update(&mut self, _: C) {
        self.index += 1;
    }

    fn export(&self) -> usize {
        return self.index;
    }
}