whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String id,
    2. int onboardingStep,
    3. bool isEmailVerified,
    4. bool isPhoneVerified,
    5. bool isProfileCompleted,
    6. String status,
    7. String displayName,
    8. String? firstName,
    9. String? lastName,
    10. String? username,
    11. String? email,
    12. String? phoneNumber,
    13. String? countryCode,
    14. List<String> roles,
    )?
)

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( String id,  int onboardingStep,  bool isEmailVerified,  bool isPhoneVerified,  bool isProfileCompleted,  String status,  String displayName,  String? firstName,  String? lastName,  String? username,  String? email,  String? phoneNumber,  String? countryCode,  List<String> roles)?  $default,) {final _that = this;
switch (_that) {
case _User() when $default != null:
return $default(_that.id,_that.onboardingStep,_that.isEmailVerified,_that.isPhoneVerified,_that.isProfileCompleted,_that.status,_that.displayName,_that.firstName,_that.lastName,_that.username,_that.email,_that.phoneNumber,_that.countryCode,_that.roles);case _:
  return null;

}
}