when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>(
  1. TResult $default(
    1. String id,
    2. String url,
    3. OfflinePolicyActionDTO? offlinePolicyAction,
    4. SlowNetworkPolicyActionDTO? slowNetworkPolicyAction,
    5. CacheOptionsDTO? cacheOptions,
    6. Map<String, String?>? headers,
    7. bool? cancelOnDispose,
    8. RequestBodyDTO? body,
    )
)

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 id,  String url,  OfflinePolicyActionDTO? offlinePolicyAction,  SlowNetworkPolicyActionDTO? slowNetworkPolicyAction,  CacheOptionsDTO? cacheOptions,  Map<String, String?>? headers,  bool? cancelOnDispose,  RequestBodyDTO? body)  $default,) {final _that = this;
switch (_that) {
case _RequestOptionsDTO():
return $default(_that.id,_that.url,_that.offlinePolicyAction,_that.slowNetworkPolicyAction,_that.cacheOptions,_that.headers,_that.cancelOnDispose,_that.body);case _:
  throw StateError('Unexpected subclass');

}
}