diamante-js-xdr/src/unsigned-hyper.js

Read/write XDR encoded data structures (RFC 4506)

import { LargeInt } from './large-int';

export class UnsignedHyper extends LargeInt {
  /**
   * @param {Array<Number|BigInt|String>} parts - Slices to encode
   */
  constructor(...args) {
    super(args);
  }

  get low() {
    return Number(this._value & 0xffffffffn) << 0;
  }

  get high() {
    return Number(this._value >> 32n) >> 0;
  }

  get size() {
    return 64;
  }

  get unsigned() {
    return true;
  }

  /**
   * Create UnsignedHyper instance from two [high][low] i32 values
   * @param {Number} low - Low part of u64 number
   * @param {Number} high - High part of u64 number
   * @return {UnsignedHyper}
   */
  static fromBits(low, high) {
    return new this(low, high);
  }
}

UnsignedHyper.defineIntBoundaries();