Method neighbors_at

nodedb-vector/src/codec_index/graph.rs:123–130

Return the neighbor slice for `idx` at `layer`.

(&self, idx: u32, layer: usize)

    /// Return the neighbor slice for `idx` at `layer`.
    pub fn neighbors_at(&self, idx: u32, layer: usize) -> &[u32] {
        let node = &self.nodes[idx as usize];
        if layer < node.neighbors.len() {
            &node.neighbors[layer]
        } else {
            &[]
        }
    }

    /// Max neighbors allowed at `layer`.
    pub(crate) fn max_neighbors(&self, layer: usize) -> usize {