whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. bool latitude,
    2. bool longitude,
    3. bool speed,
    4. bool direction,
    5. bool altitude,
    6. bool satellites,
    7. bool hdop,
    )?
)

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( bool latitude,  bool longitude,  bool speed,  bool direction,  bool altitude,  bool satellites,  bool hdop)?  $default,) {final _that = this;
switch (_that) {
case _InboundPositionStructureInput() when $default != null:
return $default(_that.latitude,_that.longitude,_that.speed,_that.direction,_that.altitude,_that.satellites,_that.hdop);case _:
  return null;

}
}