maybeMap<TResult extends Object?> method

@optionalTypeArgs TResult maybeMap<TResult extends Object?>({ TResult server(ServerFailure value)?, TResult network(NetworkFailure value)?, TResult unauthorized(UnauthorizedFailure value)?, TResult timeout(TimeoutFailure value)?, TResult cache(CacheFailure value)?, TResult unexpected(UnexpectedFailure value)?, required TResult orElse(), })

A variant of map that fallback to returning orElse.

It is equivalent to doing:

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

Implementation

@optionalTypeArgs TResult maybeMap<TResult extends Object?>({TResult Function( ServerFailure value)?  server,TResult Function( NetworkFailure value)?  network,TResult Function( UnauthorizedFailure value)?  unauthorized,TResult Function( TimeoutFailure value)?  timeout,TResult Function( CacheFailure value)?  cache,TResult Function( UnexpectedFailure value)?  unexpected,required TResult orElse(),}){
final _that = this;
switch (_that) {
case ServerFailure() when server != null:
return server(_that);case NetworkFailure() when network != null:
return network(_that);case UnauthorizedFailure() when unauthorized != null:
return unauthorized(_that);case TimeoutFailure() when timeout != null:
return timeout(_that);case CacheFailure() when cache != null:
return cache(_that);case UnexpectedFailure() when unexpected != null:
return unexpected(_that);case _:
  return orElse();

}
}