when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String userId,
    2. String badgeId,
    3. DateTime earnedAt,
    4. String? badgeName,
    5. String? badgeDescription,
    6. String? badgeIconKey,
    )
)

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 userId,  String badgeId,  DateTime earnedAt,  String? badgeName,  String? badgeDescription,  String? badgeIconKey)  $default,) {final _that = this;
switch (_that) {
case _UserBadgeModel():
return $default(_that.userId,_that.badgeId,_that.earnedAt,_that.badgeName,_that.badgeDescription,_that.badgeIconKey);case _:
  throw StateError('Unexpected subclass');

}
}