maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  1. TResult user(
    1. ModerationCauseSourceUser data
    )?,
  2. TResult list(
    1. ModerationCauseSourceList data
    )?,
  3. TResult labeler(
    1. ModerationCauseSourceLabeler data
    )?,
  4. required TResult orElse(),
})

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({TResult Function( ModerationCauseSourceUser data)?  user,TResult Function( ModerationCauseSourceList data)?  list,TResult Function( ModerationCauseSourceLabeler data)?  labeler,required TResult orElse(),}) {final _that = this;
switch (_that) {
case UModerationCauseSourceUser() when user != null:
return user(_that.data);case UModerationCauseSourceList() when list != null:
return list(_that.data);case UModerationCauseSourceLabeler() when labeler != null:
return labeler(_that.data);case _:
  return orElse();

}
}