when<TResult extends Object?> method

@optionalTypeArgs TResult when<TResult extends Object?>(TResult $default(String timezone, String dateTimeFormat, String dateFormat, String timeFormat, @JsonKey.new(unknownEnumValue: ColorblindMode.normal) ColorblindMode colorblindMode, double colorblindForce,))

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String timezone,  String dateTimeFormat,  String dateFormat,  String timeFormat, @JsonKey(unknownEnumValue: ColorblindMode.normal)  ColorblindMode colorblindMode,  double colorblindForce)  $default,) {final _that = this;
switch (_that) {
case _UserPreferencesInput():
return $default(_that.timezone,_that.dateTimeFormat,_that.dateFormat,_that.timeFormat,_that.colorblindMode,_that.colorblindForce);case _:
  throw StateError('Unexpected subclass');

}
}