whenOrNull<TResult extends Object?> method

  1. @optionalTypeArgs
TResult? whenOrNull<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. String? executionMode,
    9. RequestBodyDTO? body,
    )?
)

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

}
}