whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. String jobId,
    2. int partSizeBytes,
    3. int partCount,
    4. @JsonKey.new(toJson: iso8601) DateTime expiresAt,
    5. Map<String, dynamic>? $unknown,
    )?
)

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 jobId,  int partSizeBytes,  int partCount, @JsonKey(toJson: iso8601)  DateTime expiresAt,  Map<String, dynamic>? $unknown)?  $default,) {final _that = this;
switch (_that) {
case _VideoStartUploadOutput() when $default != null:
return $default(_that.jobId,_that.partSizeBytes,_that.partCount,_that.expiresAt,_that.$unknown);case _:
  return null;

}
}