maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. List<NavigationItem>? primaryActions,
    2. List<NavigationItem>? secondaryActions,
    3. int drawerSelectedIndex,
    4. int bottomBarSelectedIndex,
    )?, {
  2. 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(@JsonKey(name: 'primary')  List<NavigationItem>? primaryActions, @JsonKey(name: 'secondary')  List<NavigationItem>? secondaryActions, @JsonKey(defaultValue: -1)  int drawerSelectedIndex, @JsonKey(defaultValue: 0)  int bottomBarSelectedIndex)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _Navigation() when $default != null:
return $default(_that.primaryActions,_that.secondaryActions,_that.drawerSelectedIndex,_that.bottomBarSelectedIndex);case _:
  return orElse();

}
}