validate method

Implementation

void validate() {
  // reset value must fit within the field's width
  if (resetValue.bitLength > width) {
    throw CsrValidationException(
        'Field $name reset value does not fit within the field.');
  }

  // there must be at least 1 legal value for a READ_WRITE_LEGAL field
  // and the reset value must be legal
  // and every legal value must fit within the field's width
  if (access == CsrFieldAccess.readWriteLegal) {
    if (legalValues.isEmpty) {
      throw CsrValidationException(
          'Field $name has no legal values but has access READ_WRITE_LEGAL.');
    } else if (!legalValues.contains(resetValue)) {
      throw CsrValidationException(
          'Field $name reset value is not a legal value.');
    }

    for (final lv in legalValues) {
      if (lv.bitLength > width) {
        throw CsrValidationException(
            'Field $name legal value $lv does not fit within the field.');
      }
    }
  }
}