lazily 0.1.0

Lazy reactive signals with dependency tracking and cache invalidation
Documentation 
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use std::marker::PhantomData;

use crate::context::SlotId;

/// A typed handle to a mutable cell within a [`Context`].
///
/// Like [`SlotHandle`], this is a lightweight id. The actual value lives
/// inside the Context.
pub struct CellHandle<T> {
    pub(crate) id: SlotId,
    pub(crate) _marker: PhantomData<T>,
}

impl<T> CellHandle<T> {
    pub(crate) fn new(id: SlotId) -> Self {
        Self {
            id,
            _marker: PhantomData,
        }
    }
}

impl<T> Clone for CellHandle<T> {
    fn clone(&self) -> Self {
        *self
    }
}

impl<T> Copy for CellHandle<T> {}