whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String userId,
    2. String displayName,
    3. String certificationId,
    4. String certificationName,
    5. String status,
    6. DateTime? issuedAt,
    7. DateTime? expiresAt,
    8. DateTime? deadline,
    )?
)

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 userId,  String displayName,  String certificationId,  String certificationName,  String status,  DateTime? issuedAt,  DateTime? expiresAt,  DateTime? deadline)?  $default,) {final _that = this;
switch (_that) {
case _ComplianceStatusEntry() when $default != null:
return $default(_that.userId,_that.displayName,_that.certificationId,_that.certificationName,_that.status,_that.issuedAt,_that.expiresAt,_that.deadline);case _:
  return null;

}
}