| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Sends a value to the associated [`Receiver`]."><meta name="keywords" content="rust, rustlang, rust-lang, Sender"><title>Sender in tokio::sync::oneshot - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin 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class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../../tokio/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../../tokio/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">Sender</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.closed">closed</a></li><li><a href="#method.is_closed">is_closed</a></li><li><a href="#method.poll_closed">poll_closed</a></li><li><a href="#method.send">send</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Debug-for-Sender%3CT%3E">Debug</a></li><li><a href="#impl-Drop-for-Sender%3CT%3E">Drop</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-Sender%3CT%3E">!RefUnwindSafe</a></li><li><a href="#impl-Send-for-Sender%3CT%3E">Send</a></li><li><a href="#impl-Sync-for-Sender%3CT%3E">Sync</a></li><li><a href="#impl-Unpin-for-Sender%3CT%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Sender%3CT%3E">!UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-Sender%3CT%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-Sender%3CT%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-Sender%3CT%3E">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-Sender%3CT%3E">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-Sender%3CT%3E">Into<U></a></li><li><a href="#impl-TryFrom%3CU%3E-for-Sender%3CT%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-Sender%3CT%3E">TryInto<U></a></li></ul></section><h2><a href="index.html">In tokio::sync::oneshot</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../../index.html">tokio</a>::<wbr><a href="../index.html">sync</a>::<wbr><a href="index.html">oneshot</a>::<wbr><a class="struct" href="#">Sender</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../../src/tokio/sync/oneshot.rs.html#218-222">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct Sender<T> { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Sends a value to the associated <a href="struct.Receiver.html" title="Receiver"><code>Receiver</code></a>.</p> |
| <p>A pair of both a <a href="struct.Sender.html" title="Sender"><code>Sender</code></a> and a <a href="struct.Receiver.html" title="Receiver"><code>Receiver</code></a> are created by the |
| <a href="fn.channel.html"><code>channel</code></a> function.</p> |
| <h2 id="examples"><a href="#examples">Examples</a></h2> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(tx, rx) = oneshot::channel(); |
| |
| tokio::spawn(<span class="kw">async move </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Err</span>(<span class="kw">_</span>) = tx.send(<span class="number">3</span>) { |
| <span class="macro">println!</span>(<span class="string">"the receiver dropped"</span>); |
| } |
| }); |
| |
| <span class="kw">match </span>rx.<span class="kw">await </span>{ |
| <span class="prelude-val">Ok</span>(v) => <span class="macro">println!</span>(<span class="string">"got = {:?}"</span>, v), |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="macro">println!</span>(<span class="string">"the sender dropped"</span>), |
| } |
| }</code></pre></div> |
| <p>If the sender is dropped without sending, the receiver will fail with |
| <a href="error/struct.RecvError.html" title="error::RecvError"><code>error::RecvError</code></a>:</p> |
| |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(tx, rx) = oneshot::channel::<u32>(); |
| |
| tokio::spawn(<span class="kw">async move </span>{ |
| drop(tx); |
| }); |
| |
| <span class="kw">match </span>rx.<span class="kw">await </span>{ |
| <span class="prelude-val">Ok</span>(<span class="kw">_</span>) => <span class="macro">panic!</span>(<span class="string">"This doesn't happen"</span>), |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="macro">println!</span>(<span class="string">"the sender dropped"</span>), |
| } |
| }</code></pre></div> |
| <p>To use a <code>Sender</code> from a destructor, put it in an <a href="std::option::Option"><code>Option</code></a> and call |
| <a href="std::option::Option::take"><code>Option::take</code></a>.</p> |
| |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="kw">struct </span>SendOnDrop { |
| sender: <span class="prelude-ty">Option</span><oneshot::Sender<<span class="kw-2">&</span><span class="lifetime">'static </span>str>>, |
| } |
| <span class="kw">impl </span>Drop <span class="kw">for </span>SendOnDrop { |
| <span class="kw">fn </span>drop(<span class="kw-2">&mut </span><span class="self">self</span>) { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(sender) = <span class="self">self</span>.sender.take() { |
| <span class="comment">// Using `let _ =` to ignore send errors. |
| </span><span class="kw">let _ </span>= sender.send(<span class="string">"I got dropped!"</span>); |
| } |
| } |
| } |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(send, recv) = oneshot::channel(); |
| |
| <span class="kw">let </span>send_on_drop = SendOnDrop { sender: <span class="prelude-val">Some</span>(send) }; |
| drop(send_on_drop); |
| |
| <span class="macro">assert_eq!</span>(recv.<span class="kw">await</span>, <span class="prelude-val">Ok</span>(<span class="string">"I got dropped!"</span>)); |
| }</code></pre></div> |
| </div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Sender%3CT%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#549-835">source</a><a href="#impl-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.send" class="method has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#590-626">source</a><h4 class="code-header">pub fn <a href="#method.send" class="fnname">send</a>(self, t: T) -> Result<(), T></h4></section></summary><div class="docblock"><p>Attempts to send a value on this channel, returning it back if it could |
| not be sent.</p> |
| <p>This method consumes <code>self</code> as only one value may ever be sent on a oneshot |
| channel. It is not marked async because sending a message to an oneshot |
| channel never requires any form of waiting. Because of this, the <code>send</code> |
| method can be used in both synchronous and asynchronous code without |
| problems.</p> |
| <p>A successful send occurs when it is determined that the other end of the |
| channel has not hung up already. An unsuccessful send would be one where |
| the corresponding receiver has already been deallocated. Note that a |
| return value of <code>Err</code> means that the data will never be received, but |
| a return value of <code>Ok</code> does <em>not</em> mean that the data will be received. |
| It is possible for the corresponding receiver to hang up immediately |
| after this function returns <code>Ok</code>.</p> |
| <h5 id="examples-1"><a href="#examples-1">Examples</a></h5> |
| <p>Send a value to another task</p> |
| |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(tx, rx) = oneshot::channel(); |
| |
| tokio::spawn(<span class="kw">async move </span>{ |
| <span class="kw">if let </span><span class="prelude-val">Err</span>(<span class="kw">_</span>) = tx.send(<span class="number">3</span>) { |
| <span class="macro">println!</span>(<span class="string">"the receiver dropped"</span>); |
| } |
| }); |
| |
| <span class="kw">match </span>rx.<span class="kw">await </span>{ |
| <span class="prelude-val">Ok</span>(v) => <span class="macro">println!</span>(<span class="string">"got = {:?}"</span>, v), |
| <span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="macro">println!</span>(<span class="string">"the sender dropped"</span>), |
| } |
| }</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.closed" class="method has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#695-712">source</a><h4 class="code-header">pub async fn <a href="#method.closed" class="fnname">closed</a>(&mut self)</h4></section></summary><div class="docblock"><p>Waits for the associated <a href="struct.Receiver.html"><code>Receiver</code></a> handle to close.</p> |
| <p>A <a href="struct.Receiver.html"><code>Receiver</code></a> is closed by either calling <a href="struct.Receiver.html#method.close"><code>close</code></a> explicitly or the |
| <a href="struct.Receiver.html"><code>Receiver</code></a> value is dropped.</p> |
| <p>This function is useful when paired with <code>select!</code> to abort a |
| computation when the receiver is no longer interested in the result.</p> |
| <h5 id="return"><a href="#return">Return</a></h5> |
| <p>Returns a <code>Future</code> which must be awaited on.</p> |
| <h5 id="examples-2"><a href="#examples-2">Examples</a></h5> |
| <p>Basic usage</p> |
| |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, rx) = oneshot::channel::<()>(); |
| |
| tokio::spawn(<span class="kw">async move </span>{ |
| drop(rx); |
| }); |
| |
| tx.closed().<span class="kw">await</span>; |
| <span class="macro">println!</span>(<span class="string">"the receiver dropped"</span>); |
| }</code></pre></div> |
| <p>Paired with select</p> |
| |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| <span class="kw">use </span>tokio::time::{<span class="self">self</span>, Duration}; |
| |
| <span class="kw">async fn </span>compute() -> String { |
| <span class="comment">// Complex computation returning a `String` |
| </span>} |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, rx) = oneshot::channel(); |
| |
| tokio::spawn(<span class="kw">async move </span>{ |
| <span class="macro">tokio::select! </span>{ |
| <span class="kw">_ </span>= tx.closed() => { |
| <span class="comment">// The receiver dropped, no need to do any further work |
| </span>} |
| value = compute() => { |
| <span class="comment">// The send can fail if the channel was closed at the exact same |
| // time as when compute() finished, so just ignore the failure. |
| </span><span class="kw">let _ </span>= tx.send(value); |
| } |
| } |
| }); |
| |
| <span class="comment">// Wait for up to 10 seconds |
| </span><span class="kw">let _ </span>= time::timeout(Duration::from_secs(<span class="number">10</span>), rx).<span class="kw">await</span>; |
| }</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.is_closed" class="method has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#741-746">source</a><h4 class="code-header">pub fn <a href="#method.is_closed" class="fnname">is_closed</a>(&self) -> bool</h4></section></summary><div class="docblock"><p>Returns <code>true</code> if the associated <a href="struct.Receiver.html"><code>Receiver</code></a> handle has been dropped.</p> |
| <p>A <a href="struct.Receiver.html"><code>Receiver</code></a> is closed by either calling <a href="struct.Receiver.html#method.close"><code>close</code></a> explicitly or the |
| <a href="struct.Receiver.html"><code>Receiver</code></a> value is dropped.</p> |
| <p>If <code>true</code> is returned, a call to <code>send</code> will always result in an error.</p> |
| <h5 id="examples-3"><a href="#examples-3">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(tx, rx) = oneshot::channel(); |
| |
| <span class="macro">assert!</span>(!tx.is_closed()); |
| |
| drop(rx); |
| |
| <span class="macro">assert!</span>(tx.is_closed()); |
| <span class="macro">assert!</span>(tx.send(<span class="string">"never received"</span>).is_err()); |
| }</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.poll_closed" class="method has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#788-834">source</a><h4 class="code-header">pub fn <a href="#method.poll_closed" class="fnname">poll_closed</a>(&mut self, cx: &mut Context<'_>) -> Poll<()></h4></section></summary><div class="docblock"><p>Checks whether the oneshot channel has been closed, and if not, schedules the |
| <code>Waker</code> in the provided <code>Context</code> to receive a notification when the channel is |
| closed.</p> |
| <p>A <a href="struct.Receiver.html"><code>Receiver</code></a> is closed by either calling <a href="struct.Receiver.html#method.close"><code>close</code></a> explicitly, or when the |
| <a href="struct.Receiver.html"><code>Receiver</code></a> value is dropped.</p> |
| <p>Note that on multiple calls to poll, only the <code>Waker</code> from the <code>Context</code> passed |
| to the most recent call will be scheduled to receive a wakeup.</p> |
| <h5 id="return-value"><a href="#return-value">Return value</a></h5> |
| <p>This function returns:</p> |
| <ul> |
| <li><code>Poll::Pending</code> if the channel is still open.</li> |
| <li><code>Poll::Ready(())</code> if the channel is closed.</li> |
| </ul> |
| <h5 id="examples-4"><a href="#examples-4">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tokio::sync::oneshot; |
| |
| <span class="kw">use </span>futures::future::poll_fn; |
| |
| <span class="attribute">#[tokio::main] |
| </span><span class="kw">async fn </span>main() { |
| <span class="kw">let </span>(<span class="kw-2">mut </span>tx, <span class="kw-2">mut </span>rx) = oneshot::channel::<()>(); |
| |
| tokio::spawn(<span class="kw">async move </span>{ |
| rx.close(); |
| }); |
| |
| poll_fn(|cx| tx.poll_closed(cx)).<span class="kw">await</span>; |
| |
| <span class="macro">println!</span>(<span class="string">"the receiver dropped"</span>); |
| }</code></pre></div> |
| </div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-Sender%3CT%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#217">source</a><a href="#impl-Debug-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T: Debug> Debug for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#217">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, f: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Drop-for-Sender%3CT%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#837-851">source</a><a href="#impl-Drop-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> Drop for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.drop" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/tokio/sync/oneshot.rs.html#838-850">source</a><a href="#method.drop" class="anchor"></a><h4 class="code-header">fn <a class="fnname">drop</a>(&mut self)</h4></section></summary><div class='docblock'>Executes the destructor for this type. <a>Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> !RefUnwindSafe for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T></h3></section><section id="impl-Send-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-Send-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> Send for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T><span class="where fmt-newline">where<br> T: Send,</span></h3></section><section id="impl-Sync-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-Sync-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> Sync for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T><span class="where fmt-newline">where<br> T: Send,</span></h3></section><section id="impl-Unpin-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-Unpin-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> Unpin for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T></h3></section><section id="impl-UnwindSafe-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> !UnwindSafe for <a class="struct" href="struct.Sender.html" title="struct tokio::sync::oneshot::Sender">Sender</a><T></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-Any-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where<br> T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T> From<T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where<br> U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code>[From]<T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where<br> U: Into<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-Sender%3CT%3E" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-Sender%3CT%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where<br> U: TryFrom<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="tokio" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
