Uint64 function Null safety

int Uint64(
  1. Uint8List b
)

Implementation

int Uint64(Uint8List b) {
  return b[0] |
      b[1] << 8 |
      b[2] << 16 |
      b[3] << 24 |
      b[4] << 32 |
      b[5] << 40 |
      b[6] << 48 |
      b[7] << 56;
}