when<TResult extends Object?> method

@optionalTypeArgs TResult when<TResult extends Object?>(TResult $default(String condition, String merchant, String merchantLogo, Map merchantLogoOffset, String shipping, String price, String total, String link,))

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String condition,  String merchant, @JsonKey(name: 'merchant_logo')  String merchantLogo, @JsonKey(name: 'merchant_logo_offset')  Map merchantLogoOffset,  String shipping,  String price,  String total,  String link)  $default,) {final _that = this;
switch (_that) {
case _Merchant():
return $default(_that.condition,_that.merchant,_that.merchantLogo,_that.merchantLogoOffset,_that.shipping,_that.price,_that.total,_that.link);}
}