@thi.ng/vector-pools/array-list.js

Data structures for managing & working with strided, memory mapped vectors

import { AVecList } from "./alist.js";
class VecArrayList extends AVecList {
  items;
  /**
   *
   * @param buffer -
   * @param capacity -
   * @param size -
   * @param cstride -
   * @param estride -
   * @param start -
   */
  constructor(buffer, capacity, size, start = 0, cstride = 1, estride = size, factory) {
    super(buffer, capacity, size, cstride, estride, start, factory);
    this.items = [];
  }
  *[Symbol.iterator]() {
    yield* this.items;
  }
  get length() {
    return this.items.length;
  }
  add() {
    const v = this.alloc();
    if (v) {
      this.items.push(v);
    }
    return v;
  }
  insert(i) {
    if (!this.length && i !== 0) return;
    const v = this.alloc();
    if (v) {
      this.items.splice(i, 0, v);
    }
    return v;
  }
  remove(v) {
    const idx = this.items.indexOf(v);
    if (idx >= 0) {
      this.freeIDs.push(v.offset);
      this.items.splice(idx, 1);
      return true;
    }
    return false;
  }
  has(v) {
    return this.items.indexOf(v) >= 0;
  }
  nth(n) {
    return this.items[n];
  }
}
export {
  VecArrayList
};