whenOrNull<TResult extends Object?> method
TResult?
whenOrNull<TResult extends Object?>()
A variant of when
that fallback to returning null
It is equivalent to doing:
switch (sealedClass) {
case Subclass(:final field):
return ...;
case _:
return null;
}
Implementation
@optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
TResult? Function(@HiveField(0, defaultValue: 0) int themeIndex,
@HiveField(1, defaultValue: 0) int themeModel)?
$default,
) {
final _that = this;
switch (_that) {
case _AppLocalSettingModel() when $default != null:
return $default(_that.themeIndex, _that.themeModel);
case _:
return null;
}
}