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Rewrite a couple Receiver doc examples. #42372

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Merged
merged 2 commits into from
Jun 3, 2017
Merged

Rewrite a couple Receiver doc examples. #42372

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d3f3e26
Rewrite `Receiver::iter` doc example to show resulting values.
frewsxcv Jun 2, 2017
eb48ee7
Rewrite `Receiver::try_iter` doc example to show resulting values.
frewsxcv Jun 2, 2017
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35 changes: 21 additions & 14 deletions src/libstd/sync/mpsc/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1370,14 +1370,16 @@ impl<T> Receiver<T> {
/// let (send, recv) = channel();
///
/// thread::spawn(move || {
/// send.send(1u8).unwrap();
/// send.send(2u8).unwrap();
/// send.send(3u8).unwrap();
/// send.send(1).unwrap();
/// send.send(2).unwrap();
/// send.send(3).unwrap();
/// });
///
/// for x in recv.iter() {
/// println!("Got: {}", x);
/// }
/// let mut iter = recv.iter();
/// assert_eq!(iter.next(), Some(1));
/// assert_eq!(iter.next(), Some(2));
/// assert_eq!(iter.next(), Some(3));
/// assert_eq!(iter.next(), None);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
pub fn iter(&self) -> Iter<T> {
Expand All @@ -1393,29 +1395,34 @@ impl<T> Receiver<T> {
///
/// # Examples
///
/// ```rust
/// ```no_run
/// use std::sync::mpsc::channel;
/// use std::thread;
/// use std::time::Duration;
///
/// let (sender, receiver) = channel();
///
/// // Nothing is in the buffer yet
/// // nothing is in the buffer yet
/// assert!(receiver.try_iter().next().is_none());
/// println!("Nothing in the buffer...");
///
/// thread::spawn(move || {
/// thread::sleep(Duration::from_secs(1));
/// sender.send(1).unwrap();
/// sender.send(2).unwrap();
/// sender.send(3).unwrap();
/// });
///
/// println!("Going to sleep...");
/// thread::sleep(Duration::from_secs(2)); // block for two seconds
/// // nothing is in the buffer yet
/// assert!(receiver.try_iter().next().is_none());
///
/// // block for two seconds
/// thread::sleep(Duration::from_secs(2));
///
/// for x in receiver.try_iter() {
/// println!("Got: {}", x);
/// }
/// let mut iter = receiver.try_iter();
/// assert_eq!(iter.next(), Some(1));
/// assert_eq!(iter.next(), Some(2));
/// assert_eq!(iter.next(), Some(3));
/// assert_eq!(iter.next(), None);
/// ```
#[stable(feature = "receiver_try_iter", since = "1.15.0")]
pub fn try_iter(&self) -> TryIter<T> {
Expand Down