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#![no_std]
extern crate alloc;
mod hnsw;
pub use self::hnsw::*;
use ahash::RandomState;
use alloc::{vec, vec::Vec};
use hashbrown::HashSet;
use space::Neighbor;
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
#[derive(Copy, Clone, Debug)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct Params {
ef_construction: usize,
}
impl Params {
pub fn new() -> Self {
Default::default()
}
pub fn ef_construction(mut self, ef_construction: usize) -> Self {
self.ef_construction = ef_construction;
self
}
}
impl Default for Params {
fn default() -> Self {
Self {
ef_construction: 400,
}
}
}
#[derive(Clone, Debug)]
pub struct Searcher<Metric> {
candidates: Vec<Neighbor<Metric>>,
nearest: Vec<Neighbor<Metric>>,
seen: HashSet<usize, RandomState>,
}
impl<Metric> Searcher<Metric> {
pub fn new() -> Self {
Default::default()
}
fn clear(&mut self) {
self.candidates.clear();
self.nearest.clear();
self.seen.clear();
}
}
impl<Metric> Default for Searcher<Metric> {
fn default() -> Self {
Self {
candidates: vec![],
nearest: vec![],
seen: HashSet::with_hasher(RandomState::with_seeds(0, 0, 0, 0)),
}
}
}