fromValue static method

Cvm? fromValue(Object? value)

Parses a CVM from either the numeric or the string form. Returns null when the value is missing or not recognised.

Implementation

static Cvm? fromValue(Object? value) {
  if (value == null) return null;
  if (value is num) {
    switch (value.toInt()) {
      case 0:
        return Cvm.unknown;
      case 1:
        return Cvm.signature;
      case 2:
        return Cvm.pin;
      case 3:
        return Cvm.noCvm;
    }
    return null;
  }
  switch (value.toString().toUpperCase().replaceAll(' ', '')) {
    case 'SIGNATURE':
      return Cvm.signature;
    case 'PIN':
      return Cvm.pin;
    case 'NOCVM':
      return Cvm.noCvm;
    case 'UNKNOWN':
      return Cvm.unknown;
  }
  return null;
}