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simplify singleton channel

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we can directly use Option<T> without wrapping it
This commit is contained in:
Michael Sippel 2020-12-05 11:31:03 +01:00
parent 166e75a5c7
commit 9d9f21405b
Signed by: senvas
GPG key ID: F96CF119C34B64A6
1 changed files with 5 additions and 22 deletions
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27
src/channel.rs
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@ -55,26 +55,9 @@ impl<T: Eq + Hash> ChannelData for HashSet<T> {
Singleton Channel
<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
\*/
pub struct SingletonChannel<T>(Option<T>);
impl<T> Default for SingletonChannel<T> {
fn default() -> Self {
SingletonChannel(None)
}
}
impl<T> IntoIterator for SingletonChannel<T> {
type Item = T;
type IntoIter = std::iter::Once<T>;
fn into_iter(mut self) -> Self::IntoIter {
std::iter::once(self.0.take().unwrap())
}
}
impl<T> ChannelData for SingletonChannel<T> {
impl<T> ChannelData for Option<T> {
fn channel_insert(&mut self, x: T) {
self.0 = Some(x);
*self = Some(x);
}
}
@ -184,11 +167,11 @@ pub fn set_channel<T: Eq + Hash>() -> (ChannelSender<HashSet<T>>, ChannelReceive
channel::<HashSet<T>>()
}
pub fn queue_channel<T: Eq + Hash>() -> (ChannelSender<Vec<T>>, ChannelReceiver<Vec<T>>) {
pub fn queue_channel<T>() -> (ChannelSender<Vec<T>>, ChannelReceiver<Vec<T>>) {
channel::<Vec<T>>()
}
pub fn singleton_channel<T: Eq + Hash>() -> (ChannelSender<SingletonChannel<T>>, ChannelReceiver<SingletonChannel<T>>) {
channel::<SingletonChannel<T>>()
pub fn singleton_channel<T>() -> (ChannelSender<Option<T>>, ChannelReceiver<Option<T>>) {
channel::<Option<T>>()
}