Function fromStringFast

lib/buffer.js:479–504

(string, ops)

}

function fromStringFast(string, ops) {
  const maxLength = Buffer.poolSize >>> 1;

  let length = string.length; // Min length

  if (length >= maxLength)
    return createFromString(string, ops);

  length *= 4; // Max length (4 bytes per character)

  if (length >= maxLength)
    length = ops.byteLength(string); // Actual length

  if (length >= maxLength)
    return createFromString(string, ops, length);

  if (length > (poolSize - poolOffset))
    createPool();

  const actual = ops.write(allocBuffer, string, poolOffset, length);
  const b = new FastBuffer(allocPool, poolOffset, actual);

  poolOffset += actual;
  alignPool();
  return b;
}

function createFromString(string, ops, length = ops.byteLength(string)) {
  const buf = Buffer.allocUnsafeSlow(length);