int? _decode()

in lib/src/hex/decoder.dart [169:180]

• 11 lines of code
• 3 McCabe index (conditional complexity)

int? _decode(List<int> codeUnits, int sourceStart, int sourceEnd,
    List<int> destination, int destinationStart) {
  var destinationIndex = destinationStart;
  for (var i = sourceStart; i < sourceEnd - 1; i += 2) {
    var firstDigit = digitForCodeUnit(codeUnits, i);
    var secondDigit = digitForCodeUnit(codeUnits, i + 1);
    destination[destinationIndex++] = 16 * firstDigit + secondDigit;
  }

  if ((sourceEnd - sourceStart).isEven) return null;
  return 16 * digitForCodeUnit(codeUnits, sourceEnd - 1);
}