| use super::plumbing::*; |
| |
| pub struct NoopConsumer; |
| |
| impl NoopConsumer { |
| pub fn new() -> Self { |
| NoopConsumer |
| } |
| } |
| |
| impl<T> Consumer<T> for NoopConsumer { |
| type Folder = NoopConsumer; |
| type Reducer = NoopReducer; |
| type Result = (); |
| |
| fn split_at(self, _index: usize) -> (Self, Self, NoopReducer) { |
| (NoopConsumer, NoopConsumer, NoopReducer) |
| } |
| |
| fn into_folder(self) -> Self { |
| self |
| } |
| |
| fn full(&self) -> bool { |
| false |
| } |
| } |
| |
| impl<T> Folder<T> for NoopConsumer { |
| type Result = (); |
| |
| fn consume(self, _item: T) -> Self { |
| self |
| } |
| |
| fn consume_iter<I>(self, iter: I) -> Self |
| where |
| I: IntoIterator<Item = T>, |
| { |
| iter.into_iter().fold((), |_, _| ()); |
| self |
| } |
| |
| fn complete(self) {} |
| |
| fn full(&self) -> bool { |
| false |
| } |
| } |
| |
| impl<T> UnindexedConsumer<T> for NoopConsumer { |
| fn split_off_left(&self) -> Self { |
| NoopConsumer |
| } |
| |
| fn to_reducer(&self) -> NoopReducer { |
| NoopReducer |
| } |
| } |
| |
| pub struct NoopReducer; |
| |
| impl Reducer<()> for NoopReducer { |
| fn reduce(self, _left: (), _right: ()) {} |
| } |