setGroupWitnesses method

dynamic setGroupWitnesses()

Implementation

setGroupWitnesses() {
  if (witnesses!.length < inputs!.length) {
    throw Exception(
        'Transaction witnesses count must not be smaller than inputs count');
  }
  if (scriptGroup!.inputIndexes.isEmpty) {
    throw Exception('Need at least one witness!');
  }
  for (var index in scriptGroup!.inputIndexes) {
    groupWitnesses.add(witnesses![index]);
  }
  for (var i = inputs!.length; i < witnesses!.length; i++) {
    groupWitnesses.add(witnesses![i]);
  }
  if (groupWitnesses[0] is! Witness) {
    throw Exception('First witness must be of Witness type!');
  }
}