read method Null safety

int read(
  1. {int bytes = 0,
  2. int bits = 0}
)

Reads an int from the stream of length bytes and bits

Implementation

int read({int bytes = 0, int bits = 0}) {
  var len = (bytes * 8) + bits;
  var thisByte = _cursor ~/ 8;
  var thisBit = _cursor % 8;
  int output = 0;
  while (len > 0) {
    var thisLen = min(len, 8 - thisBit);
    var all = pow(2, thisLen).toInt() - 1;
    var bit = _stream[thisByte];
    if (thisBit + thisLen < 8) {
      bit = bit >> (8 - (thisBit + thisLen));
    }
    output = output << thisLen | (bit & all);
    len -= thisLen;
    _cursor += thisLen;
    thisBit = 0;
    thisByte++;
  }
  return output;
}