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<p class='location'>Struct FuturesOrdered</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a><a href="#method.len">len</a><a href="#method.is_empty">is_empty</a><a href="#method.push">push</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-FromIterator%3CF%3E">FromIterator&lt;F&gt;</a><a href="#impl-Debug">Debug</a><a href="#impl-Stream">Stream</a></div></div><p class='location'><a href='../../index.html'>tokio</a>::<wbr><a href='../index.html'>prelude</a>::<wbr><a href='index.html'>stream</a></p><script>window.sidebarCurrent = {name: 'FuturesOrdered', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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<h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>tokio</a>::<wbr><a href='../index.html'>prelude</a>::<wbr><a href='index.html'>stream</a>::<wbr><a class="struct" href=''>FuturesOrdered</a></span><span class='out-of-band'><span id='render-detail'>
<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
[<span class='inner'>&#x2212;</span>]
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</span><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#84-91' title='goto source code'>[src]</a></span></h1>
<pre class='rust struct'><div class="docblock attributes">#[must_use = "streams do nothing unless polled"]
</div>pub struct FuturesOrdered&lt;T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,&nbsp;</span> { /* fields omitted */ }</pre><div class='docblock'><p>An unbounded queue of futures.</p>
<p>This &quot;combinator&quot; is similar to <code>FuturesUnordered</code>, but it imposes an order
on top of the set of futures. While futures in the set will race to
completion in parallel, results will only be returned in the order their
originating futures were added to the queue.</p>
<p>Futures are pushed into this queue and their realized values are yielded in
order. This structure is optimized to manage a large number of futures.
Futures managed by <code>FuturesOrdered</code> will only be polled when they generate
notifications. This reduces the required amount of work needed to coordinate
large numbers of futures.</p>
<p>When a <code>FuturesOrdered</code> is first created, it does not contain any futures.
Calling <code>poll</code> in this state will result in <code>Ok(Async::Ready(None))</code> to be
returned. Futures are submitted to the queue using <code>push</code>; however, the
future will <strong>not</strong> be polled at this point. <code>FuturesOrdered</code> will only
poll managed futures when <code>FuturesOrdered::poll</code> is called. As such, it
is important to call <code>poll</code> after pushing new futures.</p>
<p>If <code>FuturesOrdered::poll</code> returns <code>Ok(Async::Ready(None))</code> this means that
the queue is currently not managing any futures. A future may be submitted
to the queue at a later time. At that point, a call to
<code>FuturesOrdered::poll</code> will either return the future's resolved value
<strong>or</strong> <code>Ok(Async::NotReady)</code> if the future has not yet completed. When
multiple futures are submitted to the queue, <code>FuturesOrdered::poll</code> will
return <code>Ok(Async::NotReady)</code> until the first future completes, even if
some of the later futures have already completed.</p>
<p>Note that you can create a ready-made <code>FuturesOrdered</code> via the
<code>futures_ordered</code> function in the <code>stream</code> module, or you can start with an
empty queue with the <code>FuturesOrdered::new</code> constructor.</p>
</div>
<h2 id='methods' class='small-section-header'>
Methods<a href='#methods' class='anchor'></a>
</h2>
<h3 id='impl' class='impl'><span class='in-band'><code>impl&lt;T&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,&nbsp;</span></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#117-161' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.new' class="method"><span id='new.v' class='invisible'><code>pub fn <a href='#method.new' class='fnname'>new</a>() -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;T&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#124-131' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Constructs a new, empty <code>FuturesOrdered</code></p>
<p>The returned <code>FuturesOrdered</code> does not contain any futures and, in this
state, <code>FuturesOrdered::poll</code> will return <code>Ok(Async::Ready(None))</code>.</p>
</div><h4 id='method.len' class="method"><span id='len.v' class='invisible'><code>pub fn <a href='#method.len' class='fnname'>len</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#138-140' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns the number of futures contained in the queue.</p>
<p>This represents the total number of in-flight futures, both
those currently processing and those that have completed but
which are waiting for earlier futures to complete.</p>
</div><h4 id='method.is_empty' class="method"><span id='is_empty.v' class='invisible'><code>pub fn <a href='#method.is_empty' class='fnname'>is_empty</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#143-145' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Returns <code>true</code> if the queue contains no futures</p>
</div><h4 id='method.push' class="method"><span id='push.v' class='invisible'><code>pub fn <a href='#method.push' class='fnname'>push</a>(&amp;mut self, future: T)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#153-160' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Push a future into the queue.</p>
<p>This function submits the given future to the internal set for managing.
This function will not call <code>poll</code> on the submitted future. The caller
must ensure that <code>FuturesOrdered::poll</code> is called in order to receive
task notifications.</p>
</div></div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<h3 id='impl-FromIterator%3CF%3E' class='impl'><span class='in-band'><code>impl&lt;F&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.FromIterator.html" title="trait core::iter::traits::FromIterator">FromIterator</a>&lt;F&gt; for <a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,&nbsp;</span></code><a href='#impl-FromIterator%3CF%3E' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#203-213' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.from_iter' class="method"><span id='from_iter.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.FromIterator.html#tymethod.from_iter' class='fnname'>from_iter</a>&lt;T&gt;(iter: T) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>&lt;Item = F&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#204-212' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a value from an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.FromIterator.html#tymethod.from_iter">Read more</a></p>
</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,&nbsp;</span></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#195-201' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, fmt: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#198-200' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id='impl-Stream' class='impl'><span class='in-band'><code>impl&lt;T&gt; <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a> for <a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>,&nbsp;</span></code><a href='#impl-Stream' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#163-193' title='goto source code'>[src]</a></span></h3>
<div class='impl-items'><h4 id='associatedtype.Item' class="type"><span id='Item.t' class='invisible'><code>type <a href='../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item' class="type">Item</a> = &lt;T as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Item" title="type tokio::prelude::future::Future::Item">Item</a></code></span></h4>
<div class='docblock'><p>The type of item this stream will yield on success.</p>
</div><h4 id='associatedtype.Error' class="type"><span id='Error.t' class='invisible'><code>type <a href='../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error' class="type">Error</a> = &lt;T as <a class="trait" href="../../../tokio/prelude/future/trait.Future.html" title="trait tokio::prelude::future::Future">Future</a>&gt;::<a class="type" href="../../../tokio/prelude/future/trait.Future.html#associatedtype.Error" title="type tokio::prelude::future::Future::Error">Error</a></code></span></h4>
<div class='docblock'><p>The type of error this stream may generate.</p>
</div><h4 id='method.poll' class="method"><span id='poll.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#tymethod.poll' class='fnname'>poll</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self<br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="enum" href="../../../tokio/prelude/enum.Async.html" title="enum tokio::prelude::Async">Async</a>&lt;<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&lt;<a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;T&gt; as <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&gt;::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>&gt;&gt;, &lt;<a class="struct" href="../../../tokio/prelude/stream/struct.FuturesOrdered.html" title="struct tokio::prelude::stream::FuturesOrdered">FuturesOrdered</a>&lt;T&gt; as <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&gt;::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/futures_ordered.rs.html#169-192' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Attempt to pull out the next value of this stream, returning <code>None</code> if the stream is finished. <a href="../../../tokio/prelude/stream/trait.Stream.html#tymethod.poll">Read more</a></p>
</div><h4 id='method.wait' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../tokio/prelude/stream/struct.Wait.html" title="struct tokio::prelude::stream::Wait">Wait</a>&lt;S&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../tokio/prelude/stream/struct.Wait.html" title="struct tokio::prelude::stream::Wait">Wait</a>&lt;S&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;S&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a> for <a class="struct" href="../../../tokio/prelude/stream/struct.Wait.html" title="struct tokio::prelude::stream::Wait">Wait</a>&lt;S&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>,&nbsp;</span></span><span class="where fmt-newline"> type <a href='https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;&lt;S as <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&gt;::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>, &lt;S as <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&gt;::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;;</span></code></div></div><span id='wait.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.wait' class='fnname'>wait</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Wait.html" title="struct tokio::prelude::stream::Wait">Wait</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#244-248' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates an iterator which blocks the current thread until each item of this stream is resolved. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.wait">Read more</a></p>
</div><h4 id='method.into_future' class="method"><span id='into_future.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.into_future' class='fnname'>into_future</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.StreamFuture.html" title="struct tokio::prelude::stream::StreamFuture">StreamFuture</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#291-295' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Converts this stream into a <code>Future</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.into_future">Read more</a></p>
</div><h4 id='method.map' class="method"><span id='map.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.map' class='fnname'>map</a>&lt;U, F&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Map.html" title="struct tokio::prelude::stream::Map">Map</a>&lt;Self, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; U,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#316-321' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Converts a stream of type <code>T</code> to a stream of type <code>U</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.map">Read more</a></p>
</div><h4 id='method.map_err' class="method"><span id='map_err.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.map_err' class='fnname'>map_err</a>&lt;U, F&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.MapErr.html" title="struct tokio::prelude::stream::MapErr">MapErr</a>&lt;Self, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>) -&gt; U,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#342-347' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Converts a stream of error type <code>T</code> to a stream of error type <code>U</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.map_err">Read more</a></p>
</div><h4 id='method.filter' class="method"><span id='filter.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.filter' class='fnname'>filter</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Filter.html" title="struct tokio::prelude::stream::Filter">Filter</a>&lt;Self, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#372-377' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Filters the values produced by this stream according to the provided predicate. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.filter">Read more</a></p>
</div><h4 id='method.filter_map' class="method"><span id='filter_map.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.filter_map' class='fnname'>filter_map</a>&lt;F, B&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.FilterMap.html" title="struct tokio::prelude::stream::FilterMap">FilterMap</a>&lt;Self, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;B&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#408-413' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Filters the values produced by this stream while simultaneously mapping them to a different type. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.filter_map">Read more</a></p>
</div><h4 id='method.then' class="method"><span id='then.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.then' class='fnname'>then</a>&lt;F, U&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Then.html" title="struct tokio::prelude::stream::Then">Then</a>&lt;Self, F, U&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>, Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;) -&gt; U,<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#447-453' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Chain on a computation for when a value is ready, passing the resulting item to the provided closure <code>f</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.then">Read more</a></p>
</div><h4 id='method.and_then' class="method"><span id='and_then.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.and_then' class='fnname'>and_then</a>&lt;F, U&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.AndThen.html" title="struct tokio::prelude::stream::AndThen">AndThen</a>&lt;Self, F, U&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; U,<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#494-500' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Chain on a computation for when a value is ready, passing the successful results to the provided closure <code>f</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.and_then">Read more</a></p>
</div><h4 id='method.or_else' class="method"><span id='or_else.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.or_else' class='fnname'>or_else</a>&lt;F, U&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.OrElse.html" title="struct tokio::prelude::stream::OrElse">OrElse</a>&lt;Self, F, U&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>) -&gt; U,<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#521-527' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Chain on a computation for when an error happens, passing the erroneous result to the provided closure <code>f</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.or_else">Read more</a></p>
</div><h4 id='method.collect' class="method"><span id='collect.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.collect' class='fnname'>collect</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Collect.html" title="struct tokio::prelude::stream::Collect">Collect</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#562-566' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Collect all of the values of this stream into a vector, returning a future representing the result of that computation. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.collect">Read more</a></p>
</div><h4 id='method.concat2' class="method"><span id='concat2.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.concat2' class='fnname'>concat2</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Concat2.html" title="struct tokio::prelude::stream::Concat2">Concat2</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.Extend.html" title="trait core::iter::traits::Extend">Extend</a>&lt;&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a> as <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::IntoIterator::Item">Item</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#598-603' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Concatenate all results of a stream into a single extendable destination, returning a future representing the end result. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.concat2">Read more</a></p>
</div><h4 id='method.concat' class="method"><span id='concat.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.concat' class='fnname'>concat</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Concat.html" title="struct tokio::prelude::stream::Concat">Concat</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.Extend.html" title="trait core::iter::traits::Extend">Extend</a>&lt;&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a> as <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::IntoIterator::Item">Item</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#638-643' title='goto source code'>[src]</a></span></h4>
<div class='stability'><div class='stab deprecated'>Deprecated since 0.1.14<p>: please use <code>Stream::concat2</code> instead</p>
</div></div><div class='docblock'><p>Concatenate all results of a stream into a single extendable destination, returning a future representing the end result. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.concat">Read more</a></p>
</div><h4 id='method.fold' class="method"><span id='fold.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.fold' class='fnname'>fold</a>&lt;F, T, Fut&gt;(self, init: T, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Fold.html" title="struct tokio::prelude::stream::Fold">Fold</a>&lt;Self, F, Fut, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(T, Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; Fut,<br>&nbsp;&nbsp;&nbsp;&nbsp;Fut: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = T&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;&lt;Fut as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Error" title="type tokio::prelude::IntoFuture::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#668-675' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Execute an accumulating computation over a stream, collecting all the values into one final result. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.fold">Read more</a></p>
</div><h4 id='method.flatten' class="method"><span id='flatten.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.flatten' class='fnname'>flatten</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Flatten.html" title="struct tokio::prelude::stream::Flatten">Flatten</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a> as <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&gt;::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#710-716' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Flattens a stream of streams into just one continuous stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.flatten">Read more</a></p>
</div><h4 id='method.skip_while' class="method"><span id='skip_while.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.skip_while' class='fnname'>skip_while</a>&lt;P, R&gt;(self, pred: P) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.SkipWhile.html" title="struct tokio::prelude::stream::SkipWhile">SkipWhile</a>&lt;Self, P, R&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;P: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; R,<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#725-731' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Skip elements on this stream while the predicate provided resolves to <code>true</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.skip_while">Read more</a></p>
</div><h4 id='method.take_while' class="method"><span id='take_while.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.take_while' class='fnname'>take_while</a>&lt;P, R&gt;(self, pred: P) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.TakeWhile.html" title="struct tokio::prelude::stream::TakeWhile">TakeWhile</a>&lt;Self, P, R&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;P: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; R,<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#739-745' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Take elements from this stream while the predicate provided resolves to <code>true</code>. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.take_while">Read more</a></p>
</div><h4 id='method.for_each' class="method"><span id='for_each.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.for_each' class='fnname'>for_each</a>&lt;F, U&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.ForEach.html" title="struct tokio::prelude::stream::ForEach">ForEach</a>&lt;Self, F, U&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>) -&gt; U,<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#761-767' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Runs this stream to completion, executing the provided closure for each element on the stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.for_each">Read more</a></p>
</div><h4 id='method.from_err' class="method"><span id='from_err.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.from_err' class='fnname'>from_err</a>&lt;E&gt;(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.FromErr.html" title="struct tokio::prelude::stream::FromErr">FromErr</a>&lt;Self, E&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;E: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#780-784' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Map this stream's error to any error implementing <code>From</code> for this stream's <code>Error</code>, returning a new stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.from_err">Read more</a></p>
</div><h4 id='method.take' class="method"><span id='take.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.take' class='fnname'>take</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Take.html" title="struct tokio::prelude::stream::Take">Take</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#796-800' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a new stream of at most <code>amt</code> items of the underlying stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.take">Read more</a></p>
</div><h4 id='method.skip' class="method"><span id='skip.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.skip' class='fnname'>skip</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Skip.html" title="struct tokio::prelude::stream::Skip">Skip</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#811-815' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a new stream which skips <code>amt</code> items of the underlying stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.skip">Read more</a></p>
</div><h4 id='method.fuse' class="method"><span id='fuse.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.fuse' class='fnname'>fuse</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Fuse.html" title="struct tokio::prelude::stream::Fuse">Fuse</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#832-836' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Fuse a stream such that <code>poll</code> will never again be called once it has finished. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.fuse">Read more</a></p>
</div><h4 id='method.by_ref' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>R</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>R</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, R&gt; <a class="trait" href="../../../tokio/prelude/trait.Read.html" title="trait tokio::prelude::Read">Read</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>R <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="../../../tokio/prelude/trait.Read.html" title="trait tokio::prelude::Read">Read</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></span><span class="where fmt-newline">impl&lt;'a, W&gt; <a class="trait" href="../../../tokio/prelude/trait.Write.html" title="trait tokio::prelude::Write">Write</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>W <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;W: <a class="trait" href="../../../tokio/prelude/trait.Write.html" title="trait tokio::prelude::Write">Write</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></span><span class="where fmt-newline">impl&lt;'a, I&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>I <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></span><span class="where fmt-newline"> type <a href='https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = &lt;I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a>&gt;::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::iterator::Iterator::Item">Item</a>;</span></code></div></div><span id='by_ref.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.by_ref' class='fnname'>by_ref</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>Self</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#857-861' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Borrows a stream, rather than consuming it. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.by_ref">Read more</a></p>
</div><h4 id='method.catch_unwind' class="method"><span id='catch_unwind.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.catch_unwind' class='fnname'>catch_unwind</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.CatchUnwind.html" title="struct tokio::prelude::stream::CatchUnwind">CatchUnwind</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#897-901' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Catches unwinding panics while polling the stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.catch_unwind">Read more</a></p>
</div><h4 id='method.buffered' class="method"><span id='buffered.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.buffered' class='fnname'>buffered</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Buffered.html" title="struct tokio::prelude::stream::Buffered">Buffered</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a> as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Error" title="type tokio::prelude::IntoFuture::Error">Error</a> == Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#917-922' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>An adaptor for creating a buffered list of pending futures. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.buffered">Read more</a></p>
</div><h4 id='method.buffer_unordered' class="method"><span id='buffer_unordered.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.buffer_unordered' class='fnname'>buffer_unordered</a>(self, amt: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.BufferUnordered.html" title="struct tokio::prelude::stream::BufferUnordered">BufferUnordered</a>&lt;Self&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>: <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;&lt;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a> as <a class="trait" href="../../../tokio/prelude/trait.IntoFuture.html" title="trait tokio::prelude::IntoFuture">IntoFuture</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.IntoFuture.html#associatedtype.Error" title="type tokio::prelude::IntoFuture::Error">Error</a> == Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#938-943' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>An adaptor for creating a buffered list of pending futures (unordered). <a href="../../../tokio/prelude/stream/trait.Stream.html#method.buffer_unordered">Read more</a></p>
</div><h4 id='method.merge' class="method"><span id='merge.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.merge' class='fnname'>merge</a>&lt;S&gt;(self, other: S) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Merge.html" title="struct tokio::prelude::stream::Merge">Merge</a>&lt;Self, S&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#952-957' title='goto source code'>[src]</a></span></h4>
<div class='stability'><div class='stab deprecated'>Deprecated<p>: functionality provided by <code>select</code> now</p>
</div></div><div class='docblock'><p>An adapter for merging the output of two streams. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.merge">Read more</a></p>
</div><h4 id='method.zip' class="method"><span id='zip.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.zip' class='fnname'>zip</a>&lt;S&gt;(self, other: S) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Zip.html" title="struct tokio::prelude::stream::Zip">Zip</a>&lt;Self, S&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&lt;Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#964-969' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>An adapter for zipping two streams together. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.zip">Read more</a></p>
</div><h4 id='method.chain' class="method"><span id='chain.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.chain' class='fnname'>chain</a>&lt;S&gt;(self, other: S) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Chain.html" title="struct tokio::prelude::stream::Chain">Chain</a>&lt;Self, S&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&lt;Item = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>, Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#990-995' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Adapter for chaining two stream. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.chain">Read more</a></p>
</div><h4 id='method.peekable' class="method"><span id='peekable.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.peekable' class='fnname'>peekable</a>(self) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Peekable.html" title="struct tokio::prelude::stream::Peekable">Peekable</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1000-1004' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a new stream which exposes a <code>peek</code> method. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.peekable">Read more</a></p>
</div><h4 id='method.chunks' class="method"><span id='chunks.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.chunks' class='fnname'>chunks</a>(self, capacity: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Chunks.html" title="struct tokio::prelude::stream::Chunks">Chunks</a>&lt;Self&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1027-1031' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>An adaptor for chunking up items of the stream inside a vector. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.chunks">Read more</a></p>
</div><h4 id='method.select' class="method"><span id='select.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.select' class='fnname'>select</a>&lt;S&gt;(self, other: S) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Select.html" title="struct tokio::prelude::stream::Select">Select</a>&lt;Self, S&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../../tokio/prelude/stream/trait.Stream.html" title="trait tokio::prelude::stream::Stream">Stream</a>&lt;Item = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>, Error = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1044-1049' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Creates a stream that selects the next element from either this stream or the provided one, whichever is ready first. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.select">Read more</a></p>
</div><h4 id='method.forward' class="method"><span id='forward.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.forward' class='fnname'>forward</a>&lt;S&gt;(self, sink: S) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Forward.html" title="struct tokio::prelude::stream::Forward">Forward</a>&lt;Self, S&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;S: <a class="trait" href="../../../tokio/prelude/trait.Sink.html" title="trait tokio::prelude::Sink">Sink</a>&lt;SinkItem = Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;&lt;S as <a class="trait" href="../../../tokio/prelude/trait.Sink.html" title="trait tokio::prelude::Sink">Sink</a>&gt;::<a class="type" href="../../../tokio/prelude/trait.Sink.html#associatedtype.SinkError" title="type tokio::prelude::Sink::SinkError">SinkError</a>&gt;,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1065-1071' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>A future that completes after the given stream has been fully processed into the sink, including flushing. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.forward">Read more</a></p>
</div><h4 id='method.split' class="method"><span id='split.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.split' class='fnname'>split</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../../tokio/prelude/stream/struct.SplitSink.html" title="struct tokio::prelude::stream::SplitSink">SplitSink</a>&lt;Self&gt;, <a class="struct" href="../../../tokio/prelude/stream/struct.SplitStream.html" title="struct tokio::prelude::stream::SplitStream">SplitStream</a>&lt;Self&gt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a> <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="../../../tokio/prelude/trait.Sink.html" title="trait tokio::prelude::Sink">Sink</a>,&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1083-1087' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Splits this <code>Stream + Sink</code> object into separate <code>Stream</code> and <code>Sink</code> objects. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.split">Read more</a></p>
</div><h4 id='method.inspect' class="method"><span id='inspect.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.inspect' class='fnname'>inspect</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.Inspect.html" title="struct tokio::prelude::stream::Inspect">Inspect</a>&lt;Self, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Item" title="type tokio::prelude::stream::Stream::Item">Item</a>),&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1094-1099' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Do something with each item of this stream, afterwards passing it on. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.inspect">Read more</a></p>
</div><h4 id='method.inspect_err' class="method"><span id='inspect_err.v' class='invisible'><code>fn <a href='../../../tokio/prelude/stream/trait.Stream.html#method.inspect_err' class='fnname'>inspect_err</a>&lt;F&gt;(self, f: F) -&gt; <a class="struct" href="../../../tokio/prelude/stream/struct.InspectErr.html" title="struct tokio::prelude::stream::InspectErr">InspectErr</a>&lt;Self, F&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&amp;Self::<a class="type" href="../../../tokio/prelude/stream/trait.Stream.html#associatedtype.Error" title="type tokio::prelude::stream::Stream::Error">Error</a>),&nbsp;</span></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/futures/stream/mod.rs.html#1106-1111' title='goto source code'>[src]</a></span></h4>
<div class='docblock'><p>Do something with the error of this stream, afterwards passing it on. <a href="../../../tokio/prelude/stream/trait.Stream.html#method.inspect_err">Read more</a></p>
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