Function pow2

lib/internal/webidl.js:206–217

* Returns 2 to the power of the given exponent. * @param {number} exponent Non-negative integer exponent. * @returns {number}

(exponent)

 * @returns {number}
 */
function pow2(exponent) {
  if (exponent < 31) {
    return 1 << exponent;
  }
  if (exponent === 31) {
    return 0x8000_0000;
  }
  if (exponent === 32) {
    return 0x1_0000_0000;
  }
  return MathPow(2, exponent);
}

/**
 * Returns x modulo y for Web IDL ConvertToInt step 10.