1
0
mirror of https://github.com/actix/actix-website synced 2024-12-18 18:03:12 +01:00
actix-website/static/api/actix-web/0.7.2/actix_web/http/header/struct.OccupiedEntry.html
2018-07-26 10:53:41 -07:00

199 lines
61 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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="API documentation for the Rust `OccupiedEntry` struct in crate `actix_web`."><meta name="keywords" content="rust, rustlang, rust-lang, OccupiedEntry"><title>actix_web::http::header::OccupiedEntry - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">&#9776;</div><p class='location'>Struct OccupiedEntry</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.key">key</a><a href="#method.get">get</a><a href="#method.get_mut">get_mut</a><a href="#method.into_mut">into_mut</a><a href="#method.insert">insert</a><a href="#method.insert_mult">insert_mult</a><a href="#method.append">append</a><a href="#method.remove">remove</a><a href="#method.remove_entry">remove_entry</a><a href="#method.remove_entry_mult">remove_entry_mult</a><a href="#method.iter">iter</a><a href="#method.iter_mut">iter_mut</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-IntoIterator">IntoIterator</a><a href="#impl-Debug">Debug</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a></div></div><p class='location'><a href='../../index.html'>actix_web</a>::<wbr><a href='../index.html'>http</a>::<wbr><a href='index.html'>header</a></p><script>window.sidebarCurrent = {name: 'OccupiedEntry', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press S to search, ? for more options…" type="search"><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>actix_web</a>::<wbr><a href='../index.html'>http</a>::<wbr><a href='index.html'>header</a>::<wbr><a class="struct" href=''>OccupiedEntry</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>]</a></span><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#171-175' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust struct'>pub struct OccupiedEntry&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'a,&nbsp;</span> { /* fields omitted */ }</pre></div><div class='docblock'><p>A view into a single occupied location in a <code>HeaderMap</code>.</p>
<p>This struct is returned as part of the <code>Entry</code> enum.</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'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, T&gt; <a class="struct" href="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, T&gt;</code><a href='#impl' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2583-2874' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.key' class="method"><span id='key.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.key' class='fnname'>key</a>(&amp;self) -&gt; &amp;<a class="struct" href="../../../actix_web/http/header/struct.HeaderName.html" title="struct actix_web::http::header::HeaderName">HeaderName</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2597-2599' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a reference to the entry's key.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;host&quot;</span>, <span class="ident">e</span>.<span class="ident">key</span>());
}</pre>
</div><h4 id='method.get' 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="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::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='get.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.get' class='fnname'>get</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2624-2626' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Get a reference to the first value in the entry.</p>
<p>Values are stored in insertion order.</p>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p><code>get</code> panics if there are no values associated with the entry.</p>
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;hello.world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="kw-2">mut</span> <span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">e</span>.<span class="ident">get</span>(), <span class="kw-2">&amp;</span><span class="string">&quot;hello.world&quot;</span>);
<span class="ident">e</span>.<span class="ident">append</span>(<span class="string">&quot;hello.earth&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">e</span>.<span class="ident">get</span>(), <span class="kw-2">&amp;</span><span class="string">&quot;hello.world&quot;</span>);
}</pre>
</div><h4 id='method.get_mut' 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="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::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='get_mut.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.get_mut' class='fnname'>get_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2648-2650' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Get a mutable reference to the first value in the entry.</p>
<p>Values are stored in insertion order.</p>
<h1 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h1>
<p><code>get_mut</code> panics if there are no values associated with the entry.</p>
<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">default</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;hello.world&quot;</span>.<span class="ident">to_string</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="kw-2">mut</span> <span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="ident">e</span>.<span class="ident">get_mut</span>().<span class="ident">push_str</span>(<span class="string">&quot;-2&quot;</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">e</span>.<span class="ident">get</span>(), <span class="kw-2">&amp;</span><span class="string">&quot;hello.world-2&quot;</span>);
}</pre>
</div><h4 id='method.into_mut' 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="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::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="https://doc.rust-lang.org/nightly/std/io/trait.Write.html" title="trait std::io::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='into_mut.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.into_mut' class='fnname'>into_mut</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>T</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2675-2677' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Converts the <code>OccupiedEntry</code> into a mutable reference to the <strong>first</strong>
value.</p>
<p>The lifetime of the returned reference is bound to the original map.</p>
<h1 id="panics-2" class="section-header"><a href="#panics-2">Panics</a></h1>
<p><code>into_mut</code> panics if there are no values associated with the entry.</p>
<h1 id="examples-3" class="section-header"><a href="#examples-3">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">default</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;hello.world&quot;</span>.<span class="ident">to_string</span>());
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">HOST</span>, <span class="string">&quot;hello.earth&quot;</span>.<span class="ident">to_string</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="ident">e</span>.<span class="ident">into_mut</span>().<span class="ident">push_str</span>(<span class="string">&quot;-2&quot;</span>);
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;hello.world-2&quot;</span>, <span class="ident">map</span>[<span class="string">&quot;host&quot;</span>]);</pre>
</div><h4 id='method.insert' class="method"><span id='insert.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.insert' class='fnname'>insert</a>(&amp;mut self, value: T) -&gt; T</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2698-2700' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the value of the entry.</p>
<p>All previous values associated with the entry are removed and the first
one is returned. See <code>insert_mult</code> for an API that returns all values.</p>
<h1 id="examples-4" class="section-header"><a href="#examples-4">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;hello.world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="kw-2">mut</span> <span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">prev</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">insert</span>(<span class="string">&quot;earth&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;hello.world&quot;</span>, <span class="ident">prev</span>);
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;earth&quot;</span>, <span class="ident">map</span>[<span class="string">&quot;host&quot;</span>]);</pre>
</div><h4 id='method.insert_mult' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueDrain.html" title="struct actix_web::http::header::ValueDrain">ValueDrain</a>&lt;'a, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueDrain.html" title="struct actix_web::http::header::ValueDrain">ValueDrain</a>&lt;'a, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, T&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="../../../actix_web/http/header/struct.ValueDrain.html" title="struct actix_web::http::header::ValueDrain">ValueDrain</a>&lt;'a, T&gt;</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> = T;</span></code></div></div><span id='insert_mult.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.insert_mult' class='fnname'>insert_mult</a>(&amp;mut self, value: T) -&gt; <a class="struct" href="../../../actix_web/http/header/struct.ValueDrain.html" title="struct actix_web::http::header::ValueDrain">ValueDrain</a>&lt;T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2724-2726' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Sets the value of the entry.</p>
<p>This function does the same as <code>insert</code> except it returns an iterator
that yields all values previously associated with the key.</p>
<h1 id="examples-5" class="section-header"><a href="#examples-5">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">HOST</span>, <span class="string">&quot;world2&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="kw-2">mut</span> <span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">prev</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">insert_mult</span>(<span class="string">&quot;earth&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;world&quot;</span>, <span class="ident">prev</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;world2&quot;</span>, <span class="ident">prev</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">prev</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;earth&quot;</span>, <span class="ident">map</span>[<span class="string">&quot;host&quot;</span>]);</pre>
</div><h4 id='method.append' class="method"><span id='append.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.append' class='fnname'>append</a>(&amp;mut self, value: T)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2749-2753' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Insert the value into the entry.</p>
<p>The new value is appended to the end of the entry's value list. All
previous values associated with the entry are retained.</p>
<h1 id="examples-6" class="section-header"><a href="#examples-6">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="kw-2">mut</span> <span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="ident">e</span>.<span class="ident">append</span>(<span class="string">&quot;earth&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
}
<span class="kw">let</span> <span class="ident">values</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_all</span>(<span class="string">&quot;host&quot;</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="ident">values</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;world&quot;</span>, <span class="kw-2">*</span><span class="ident">i</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;earth&quot;</span>, <span class="kw-2">*</span><span class="ident">i</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());</pre>
</div><h4 id='method.remove' class="method"><span id='remove.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.remove' class='fnname'>remove</a>(self) -&gt; T</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2774-2776' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Remove the entry from the map.</p>
<p>All values associated with the entry are removed and the first one is
returned. See <code>remove_entry_mult</code> for an API that returns all values.</p>
<h1 id="examples-7" class="section-header"><a href="#examples-7">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">prev</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">remove</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;world&quot;</span>, <span class="ident">prev</span>);
}
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">map</span>.<span class="ident">contains_key</span>(<span class="string">&quot;host&quot;</span>));</pre>
</div><h4 id='method.remove_entry' class="method"><span id='remove_entry.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.remove_entry' class='fnname'>remove_entry</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../../actix_web/http/header/struct.HeaderName.html" title="struct actix_web::http::header::HeaderName">HeaderName</a>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2799-2807' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Remove the entry from the map.</p>
<p>The key and all values associated with the entry are removed and the
first one is returned. See <code>remove_entry_mult</code> for an API that returns
all values.</p>
<h1 id="examples-8" class="section-header"><a href="#examples-8">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="kw">let</span> (<span class="ident">key</span>, <span class="kw-2">mut</span> <span class="ident">prev</span>) <span class="op">=</span> <span class="ident">e</span>.<span class="ident">remove_entry</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;host&quot;</span>, <span class="ident">key</span>.<span class="ident">as_str</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">&quot;world&quot;</span>, <span class="ident">prev</span>);
}
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">map</span>.<span class="ident">contains_key</span>(<span class="string">&quot;host&quot;</span>));</pre>
</div><h4 id='method.remove_entry_mult' class="method"><span id='remove_entry_mult.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.remove_entry_mult' class='fnname'>remove_entry_mult</a>(self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../../actix_web/http/header/struct.HeaderName.html" title="struct actix_web::http::header::HeaderName">HeaderName</a>, <a class="struct" href="../../../actix_web/http/header/struct.ValueDrain.html" title="struct actix_web::http::header::ValueDrain">ValueDrain</a>&lt;'a, T&gt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2813-2822' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Remove the entry from the map.</p>
<p>The key and all values associated with the entry are removed and
returned.</p>
</div><h4 id='method.iter' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, T&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="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: '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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a </a>T;</span></code></div></div><span id='iter.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.iter' class='fnname'>iter</a>(&amp;self) -&gt; <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2843-2845' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns an iterator visiting all values associated with the entry.</p>
<p>Values are iterated in insertion order.</p>
<h1 id="examples-9" class="section-header"><a href="#examples-9">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">HOST</span>, <span class="string">&quot;earth&quot;</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">e</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="string">&quot;world&quot;</span>, <span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="string">&quot;earth&quot;</span>, <span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());
}</pre>
</div><h4 id='method.iter_mut' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, T&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="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: '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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>T;</span></code></div></div><span id='iter_mut.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.iter_mut' class='fnname'>iter_mut</a>(&amp;mut self) -&gt; <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2871-2873' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns an iterator mutably visiting all values associated with the
entry.</p>
<p>Values are iterated in insertion order.</p>
<h1 id="examples-10" class="section-header"><a href="#examples-10">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">default</span>();
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">&quot;world&quot;</span>.<span class="ident">to_string</span>());
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">HOST</span>, <span class="string">&quot;earth&quot;</span>.<span class="ident">to_string</span>());
<span class="kw">if</span> <span class="kw">let</span> <span class="ident">Entry</span>::<span class="ident">Occupied</span>(<span class="kw-2">mut</span> <span class="ident">e</span>) <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="string">&quot;host&quot;</span>).<span class="ident">unwrap</span>() {
<span class="kw">for</span> <span class="ident">e</span> <span class="kw">in</span> <span class="ident">e</span>.<span class="ident">iter_mut</span>() {
<span class="ident">e</span>.<span class="ident">push_str</span>(<span class="string">&quot;-boop&quot;</span>);
}
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">values</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_all</span>(<span class="string">&quot;host&quot;</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="ident">values</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="string">&quot;world-boop&quot;</span>, <span class="ident">i</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&amp;</span><span class="string">&quot;earth-boop&quot;</span>, <span class="ident">i</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());</pre>
</div></div>
<h2 id='implementations' class='small-section-header'>
Trait Implementations<a href='#implementations' class='anchor'></a>
</h2>
<div id='implementations-list'><h3 id='impl-IntoIterator' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, 'b, T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a> for &amp;'b <a class="struct" href="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;'b: 'a,&nbsp;</span></code><a href='#impl-IntoIterator' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2885-2892' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='associatedtype.Item' class="type"><span id='Item.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a </a>T</code></span></h4>
<div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter' class="type"><span id='IntoIter.t' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt;</code></span></h4>
<div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, T&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="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: '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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a </a>T;</span></code></div></div><span id='into_iter.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -&gt; <a class="struct" href="../../../actix_web/http/header/struct.ValueIter.html" title="struct actix_web::http::header::ValueIter">ValueIter</a>&lt;'a, T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2889-2891' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 id='impl-IntoIterator-1' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, 'b, T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a> for &amp;'b mut <a class="struct" href="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;'b: 'a,&nbsp;</span></code><a href='#impl-IntoIterator-1' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2894-2901' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='associatedtype.Item-1' class="type"><span id='Item.t-1' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>T</code></span></h4>
<div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter-1' class="type"><span id='IntoIter.t-1' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</code></span></h4>
<div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter-1' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, T&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="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: '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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>T;</span></code></div></div><span id='into_iter.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -&gt; <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2898-2900' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 id='impl-IntoIterator-2' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html" title="trait core::iter::traits::IntoIterator">IntoIterator</a> for <a class="struct" href="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, T&gt;</code><a href='#impl-IntoIterator-2' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2876-2883' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='associatedtype.Item-2' class="type"><span id='Item.t-2' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>T</code></span></h4>
<div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter-2' class="type"><span id='IntoIter.t-2' class='invisible'><code>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</code></span></h4>
<div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter-2' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;'a, T&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="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: '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="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;'a mut </a>T;</span></code></div></div><span id='into_iter.v-2' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -&gt; <a class="struct" href="../../../actix_web/http/header/struct.ValueIterMut.html" title="struct actix_web::http::header::ValueIterMut">ValueIterMut</a>&lt;'a, T&gt;</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#2880-2882' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, 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="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'a + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,&nbsp;</span></code><a href='#impl-Debug' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#170' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, f: &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></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='https://docs.rs/http/0.1.8/src/http/header/map.rs.html#170' title='goto source code'>[src]</a></td></tr></tbody></table></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></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'>
<h3 id='impl-Send' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, 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/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,&nbsp;</span></code><a href='#impl-Send' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl&lt;'a, T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../../actix_web/http/header/struct.OccupiedEntry.html" title="struct actix_web::http::header::OccupiedEntry">OccupiedEntry</a>&lt;'a, 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/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,&nbsp;</span></code><a href='#impl-Sync' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd></kbd></dt><dd>Move up in search results</dd><dt><kbd></kbd></dt><dd>Move down in search results</dd><dt><kbd></kbd></dt><dd>Switch tab</dd><dt><kbd>&#9166;</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../../";window.currentCrate = "actix_web";</script><script src="../../../aliases.js"></script><script src="../../../main.js"></script><script defer src="../../../search-index.js"></script></body></html>