whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<TResult extends Object?>(
  1. TResult? $default(
    1. PgRepo repo,
    2. PgStatus status,
    3. String error,
    4. PgLinkResponse? response,
    5. PgInvoiceResponse? pgInvoiceResponse,
    6. PgInvoiceResponse? pgInvoiceResponseError,
    )?
)

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( PgRepo repo,  PgStatus status,  String error,  PgLinkResponse? response,  PgInvoiceResponse? pgInvoiceResponse,  PgInvoiceResponse? pgInvoiceResponseError)?  $default,) {final _that = this;
switch (_that) {
case _PgState() when $default != null:
return $default(_that.repo,_that.status,_that.error,_that.response,_that.pgInvoiceResponse,_that.pgInvoiceResponseError);case _:
  return null;

}
}