Method value_mut

cranelift/bforest/src/map.rs:360–364

(&self, pool: &'a mut NodePool<MapTypes<K, V>>)

    }

    fn value_mut<'a>(&self, pool: &'a mut NodePool<MapTypes<K, V>>) -> Option<&'a mut V> {
        self.path
            .leaf_pos()
            .and_then(move |(node, entry)| pool[node].unwrap_leaf_mut().1.get_mut(entry))
    }

    fn goto(
        &mut self,