maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>(
  1. TResult $default(
    1. String id,
    2. bool ready,
    3. AvailableShippingRates? availableShippingRates,
    4. String createdAt,
    5. String currencyCode,
    6. PriceV2 totalTaxV2,
    7. PriceV2 totalPriceV2,
    8. bool taxesIncluded,
    9. bool taxExempt,
    10. PriceV2 subtotalPriceV2,
    11. bool requiresShipping,
    12. List<AppliedGiftCards> appliedGiftCards,
    13. List<LineItem> lineItems,
    14. Order? order,
    15. String? orderStatusUrl,
    16. String? shopifyPaymentsAccountId,
    17. MailingAddress? shippingAddress,
    18. ShippingRates? shippingLine,
    19. String? email,
    20. String? completedAt,
    21. String? note,
    22. String? webUrl,
    23. String? updatedAt,
    )?, {
  2. required TResult orElse(),
})

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  bool ready,  AvailableShippingRates? availableShippingRates,  String createdAt,  String currencyCode,  PriceV2 totalTaxV2,  PriceV2 totalPriceV2,  bool taxesIncluded,  bool taxExempt,  PriceV2 subtotalPriceV2,  bool requiresShipping,  List<AppliedGiftCards> appliedGiftCards, @JsonKey(fromJson: JsonHelper.lineItems)  List<LineItem> lineItems,  Order? order,  String? orderStatusUrl,  String? shopifyPaymentsAccountId,  MailingAddress? shippingAddress,  ShippingRates? shippingLine,  String? email,  String? completedAt,  String? note,  String? webUrl,  String? updatedAt)?  $default,{required TResult orElse(),}) {final _that = this;
switch (_that) {
case _Checkout() when $default != null:
return $default(_that.id,_that.ready,_that.availableShippingRates,_that.createdAt,_that.currencyCode,_that.totalTaxV2,_that.totalPriceV2,_that.taxesIncluded,_that.taxExempt,_that.subtotalPriceV2,_that.requiresShipping,_that.appliedGiftCards,_that.lineItems,_that.order,_that.orderStatusUrl,_that.shopifyPaymentsAccountId,_that.shippingAddress,_that.shippingLine,_that.email,_that.completedAt,_that.note,_that.webUrl,_that.updatedAt);case _:
  return orElse();

}
}