mapOrNull<TResult extends Object?> method

@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>({ TResult? queueActivity(UReportCreateActivityActivityQueueActivity value)?, TResult? assignmentActivity(UReportCreateActivityActivityAssignmentActivity value)?, TResult? escalationActivity(UReportCreateActivityActivityEscalationActivity value)?, TResult? closeActivity(UReportCreateActivityActivityCloseActivity value)?, TResult? reopenActivity(UReportCreateActivityActivityReopenActivity value)?, TResult? noteActivity(UReportCreateActivityActivityNoteActivity value)?, TResult? unknown(UReportCreateActivityActivityUnknown value)?, })

A variant of map that fallback to returning null.

It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case _:
    return null;
}

Implementation

@optionalTypeArgs TResult? mapOrNull<TResult extends Object?>({TResult? Function( UReportCreateActivityActivityQueueActivity value)?  queueActivity,TResult? Function( UReportCreateActivityActivityAssignmentActivity value)?  assignmentActivity,TResult? Function( UReportCreateActivityActivityEscalationActivity value)?  escalationActivity,TResult? Function( UReportCreateActivityActivityCloseActivity value)?  closeActivity,TResult? Function( UReportCreateActivityActivityReopenActivity value)?  reopenActivity,TResult? Function( UReportCreateActivityActivityNoteActivity value)?  noteActivity,TResult? Function( UReportCreateActivityActivityUnknown value)?  unknown,}){
final _that = this;
switch (_that) {
case UReportCreateActivityActivityQueueActivity() when queueActivity != null:
return queueActivity(_that);case UReportCreateActivityActivityAssignmentActivity() when assignmentActivity != null:
return assignmentActivity(_that);case UReportCreateActivityActivityEscalationActivity() when escalationActivity != null:
return escalationActivity(_that);case UReportCreateActivityActivityCloseActivity() when closeActivity != null:
return closeActivity(_that);case UReportCreateActivityActivityReopenActivity() when reopenActivity != null:
return reopenActivity(_that);case UReportCreateActivityActivityNoteActivity() when noteActivity != null:
return noteActivity(_that);case UReportCreateActivityActivityUnknown() when unknown != null:
return unknown(_that);case _:
  return null;

}
}