457 lines
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457 lines
108 KiB
HTML
<!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 `HeaderMap` struct in crate `http`."><meta name="keywords" content="rust, rustlang, rust-lang, HeaderMap"><title>http::header::HeaderMap - 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><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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">☰</div><a href='../../http/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><p class='location'>Struct HeaderMap</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.append">append</a><a href="#method.capacity">capacity</a><a href="#method.clear">clear</a><a href="#method.contains_key">contains_key</a><a href="#method.drain">drain</a><a href="#method.entry">entry</a><a href="#method.get">get</a><a href="#method.get_all">get_all</a><a href="#method.get_mut">get_mut</a><a href="#method.insert">insert</a><a href="#method.is_empty">is_empty</a><a href="#method.iter">iter</a><a href="#method.iter_mut">iter_mut</a><a href="#method.keys">keys</a><a href="#method.keys_len">keys_len</a><a href="#method.len">len</a><a href="#method.new">new</a><a href="#method.remove">remove</a><a href="#method.reserve">reserve</a><a href="#method.values">values</a><a href="#method.values_mut">values_mut</a><a href="#method.with_capacity">with_capacity</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Default">Default</a><a href="#impl-Eq">Eq</a><a href="#impl-Extend%3C(HeaderName%2C%20T)%3E">Extend<(HeaderName, T)></a><a href="#impl-Extend%3C(Option%3CHeaderName%3E%2C%20T)%3E">Extend<(Option<HeaderName>, T)></a><a href="#impl-FromIterator%3C(HeaderName%2C%20T)%3E">FromIterator<(HeaderName, T)></a><a href="#impl-HttpTryFrom%3C%26%27a%20HashMap%3CK%2C%20V%2C%20RandomState%3E%3E">HttpTryFrom<&'a HashMap<K, V, RandomState>></a><a href="#impl-HttpTryFrom%3CHeaderMap%3CT%3E%3E">HttpTryFrom<HeaderMap<T>></a><a href="#impl-Index%3CK%3E">Index<K></a><a href="#impl-IntoIterator">IntoIterator</a><a href="#impl-PartialEq%3CHeaderMap%3CT%3E%3E">PartialEq<HeaderMap<T>></a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-IntoIterator">IntoIterator</a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class='location'><a href='../index.html'>http</a>::<wbr><a href='index.html'>header</a></p><script>window.sidebarCurrent = {name: 'HeaderMap', 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"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><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='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/http/header/map.rs.html#45-52' title='goto source code'>[src]</a></span><span class='in-band'>Struct <a href='../index.html'>http</a>::<wbr><a href='index.html'>header</a>::<wbr><a class="struct" href=''>HeaderMap</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust struct'>pub struct HeaderMap<T = <a class="struct" href="../../http/header/struct.HeaderValue.html" title="struct http::header::HeaderValue">HeaderValue</a>> { /* fields omitted */ }</pre></div><div class='docblock'><p>A set of HTTP headers</p>
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<p><code>HeaderMap</code> is an multimap of <a href="struct.HeaderName.html"><code>HeaderName</code></a> to values.</p>
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<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
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<p>Basic usage</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">headers</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
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<span class="ident">headers</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"example.com"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="ident">headers</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">headers</span>.<span class="ident">contains_key</span>(<span class="ident">HOST</span>));
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<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">headers</span>.<span class="ident">contains_key</span>(<span class="ident">LOCATION</span>));
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">headers</span>[<span class="ident">HOST</span>], <span class="string">"example.com"</span>);
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<span class="ident">headers</span>.<span class="ident">remove</span>(<span class="ident">HOST</span>);
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<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">headers</span>.<span class="ident">contains_key</span>(<span class="ident">HOST</span>));</pre></div>
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</div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><code class='in-band'>impl <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a></code><a href='#impl' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#424-442' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.new' class="method"><code id='new.v'>pub fn <a href='#method.new' class='fnname'>new</a>() -> Self</code><a class='srclink' href='../../src/http/header/map.rs.html#439-441' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create an empty <code>HeaderMap</code>.</p>
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<p>The map will be created without any capacity. This function will not
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allocate.</p>
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<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">is_empty</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">map</span>.<span class="ident">capacity</span>());</pre></div>
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</div></div><h3 id='impl-1' class='impl'><code class='in-band'>impl<T> <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-1' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#444-1554' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.with_capacity' class="method"><code id='with_capacity.v'>pub fn <a href='#method.with_capacity' class='fnname'>with_capacity</a>(capacity: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#463-486' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create an empty <code>HeaderMap</code> with the specified capacity.</p>
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<p>The returned map will allocate internal storage in order to hold about
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<code>capacity</code> elements without reallocating. However, this is a "best
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effort" as there are usage patterns that could cause additional
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allocations before <code>capacity</code> headers are stored in the map.</p>
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<p>More capacity than requested may be allocated.</p>
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<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<span class="kw">let</span> <span class="ident">map</span>: <span class="ident">HeaderMap</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">with_capacity</span>(<span class="number">10</span>);
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">is_empty</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">12</span>, <span class="ident">map</span>.<span class="ident">capacity</span>());</pre></div>
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</div><h4 id='method.len' class="method"><code id='len.v'>pub fn <a href='#method.len' class='fnname'>len</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../../src/http/header/map.rs.html#512-514' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of headers stored in the map.</p>
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<p>This number represents the total number of <strong>values</strong> stored in the map.
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This number can be greater than or equal to the number of <strong>keys</strong>
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stored given that a single key may have more than one associated value.</p>
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<h1 id="examples-3" class="section-header"><a href="#examples-3">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">map</span>.<span class="ident">len</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">ACCEPT</span>, <span class="string">"text/plain"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"localhost"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">map</span>.<span class="ident">len</span>());
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<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">ACCEPT</span>, <span class="string">"text/html"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">3</span>, <span class="ident">map</span>.<span class="ident">len</span>());</pre></div>
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</div><h4 id='method.keys_len' class="method"><code id='keys_len.v'>pub fn <a href='#method.keys_len' class='fnname'>keys_len</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../../src/http/header/map.rs.html#539-541' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of keys stored in the map.</p>
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<p>This number will be less than or equal to <code>len()</code> as each key may have
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more than one associated value.</p>
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<h1 id="examples-4" class="section-header"><a href="#examples-4">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">map</span>.<span class="ident">keys_len</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">ACCEPT</span>, <span class="string">"text/plain"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"localhost"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">map</span>.<span class="ident">keys_len</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">ACCEPT</span>, <span class="string">"text/html"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">map</span>.<span class="ident">keys_len</span>());</pre></div>
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</div><h4 id='method.is_empty' class="method"><code id='is_empty.v'>pub fn <a href='#method.is_empty' class='fnname'>is_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../../src/http/header/map.rs.html#558-560' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if the map contains no elements.</p>
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<h1 id="examples-5" class="section-header"><a href="#examples-5">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">is_empty</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"hello.world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">map</span>.<span class="ident">is_empty</span>());</pre></div>
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</div><h4 id='method.clear' class="method"><code id='clear.v'>pub fn <a href='#method.clear' class='fnname'>clear</a>(&mut self)</code><a class='srclink' href='../../src/http/header/map.rs.html#577-585' title='goto source code'>[src]</a></h4><div class='docblock'><p>Clears the map, removing all key-value pairs. Keeps the allocated memory
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for reuse.</p>
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<h1 id="examples-6" class="section-header"><a href="#examples-6">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"hello.world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="ident">map</span>.<span class="ident">clear</span>();
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">is_empty</span>());
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">capacity</span>() <span class="op">></span> <span class="number">0</span>);</pre></div>
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</div><h4 id='method.capacity' class="method"><code id='capacity.v'>pub fn <a href='#method.capacity' class='fnname'>capacity</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a class='srclink' href='../../src/http/header/map.rs.html#604-606' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the number of headers the map can hold without reallocating.</p>
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<p>This number is an approximation as certain usage patterns could cause
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additional allocations before the returned capacity is filled.</p>
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<h1 id="examples-7" class="section-header"><a href="#examples-7">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">0</span>, <span class="ident">map</span>.<span class="ident">capacity</span>());
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<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"hello.world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
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<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">6</span>, <span class="ident">map</span>.<span class="ident">capacity</span>());</pre></div>
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</div><h4 id='method.reserve' class="method"><code id='reserve.v'>pub fn <a href='#method.reserve' class='fnname'>reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><a class='srclink' href='../../src/http/header/map.rs.html#630-650' title='goto source code'>[src]</a></h4><div class='docblock'><p>Reserves capacity for at least <code>additional</code> more headers to be inserted
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into the <code>HeaderMap</code>.</p>
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<p>The header map may reserve more space to avoid frequent reallocations.
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Like with <code>with_capacity</code>, this will be a "best effort" to avoid
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allocations until <code>additional</code> more headers are inserted. Certain usage
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patterns could cause additional allocations before the number is
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reached.</p>
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<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
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<p>Panics if the new allocation size overflows <code>usize</code>.</p>
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<h1 id="examples-8" class="section-header"><a href="#examples-8">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="ident">map</span>.<span class="ident">reserve</span>(<span class="number">10</span>);</pre></div>
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</div><h4 id='method.get' class="method"><code id='get.v'>pub fn <a href='#method.get' class='fnname'>get</a><K>(&self, key: K) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#673-677' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns a reference to the value associated with the key.</p>
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<p>If there are multiple values associated with the key, then the first one
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is returned. Use <code>get_all</code> to get all values associated with a given
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key. Returns <code>None</code> if there are no values associated with the key.</p>
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<h1 id="examples-9" class="section-header"><a href="#examples-9">Examples</a></h1>
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<div class="example-wrap"><pre class="rust rust-example-rendered">
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<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>();
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<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">get</span>(<span class="string">"host"</span>).<span class="ident">is_none</span>());
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||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"hello"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">get</span>(<span class="ident">HOST</span>).<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="string">"hello"</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">get</span>(<span class="string">"host"</span>).<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="string">"hello"</span>);
|
||
|
||
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">HOST</span>, <span class="string">"world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">get</span>(<span class="string">"host"</span>).<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="string">"hello"</span>);</pre></div>
|
||
</div><h4 id='method.get_mut' class="method"><code id='get_mut.v'>pub fn <a href='#method.get_mut' class='fnname'>get_mut</a><K>(&mut self, key: K) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#708-718' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns a mutable reference to the value associated with the key.</p>
|
||
<p>If there are multiple values associated with the key, then the first one
|
||
is returned. Use <code>entry</code> to get all values associated with a given
|
||
key. Returns <code>None</code> if there are no values associated with the key.</p>
|
||
<h1 id="examples-10" class="section-header"><a href="#examples-10">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">map</span>.<span class="ident">get_mut</span>(<span class="string">"host"</span>).<span class="ident">unwrap</span>().<span class="ident">push_str</span>(<span class="string">"-world"</span>);
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">get</span>(<span class="ident">HOST</span>).<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="string">"hello-world"</span>);</pre></div>
|
||
</div><h4 id='method.get_all' class="method"><code id='get_all.v'>pub fn <a href='#method.get_all' class='fnname'>get_all</a><K>(&self, key: K) -> <a class="struct" href="../../http/header/struct.GetAll.html" title="struct http::header::GetAll">GetAll</a><T> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#745-752' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns a view of all values associated with a key.</p>
|
||
<p>The returned view does not incur any allocations and allows iterating
|
||
the values associated with the key. See <a href="struct.GetAll.html"><code>GetAll</code></a> for more details.
|
||
Returns <code>None</code> if there are no values associated with the key.</p>
|
||
<h1 id="examples-11" class="section-header"><a href="#examples-11">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">let</span> <span class="ident">view</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_all</span>(<span class="string">"host"</span>);
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">view</span>.<span class="ident">iter</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="kw-2">&</span><span class="string">"hello"</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">&</span><span class="string">"goodbye"</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>
|
||
</div><h4 id='method.contains_key' class="method"><code id='contains_key.v'>pub fn <a href='#method.contains_key' class='fnname'>contains_key</a><K>(&self, key: K) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#767-771' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns true if the map contains a value for the specified key.</p>
|
||
<h1 id="examples-12" class="section-header"><a href="#examples-12">Examples</a></h1>
|
||
<div class="example-wrap"><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="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">map</span>.<span class="ident">contains_key</span>(<span class="ident">HOST</span>));
|
||
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">contains_key</span>(<span class="string">"host"</span>));</pre></div>
|
||
</div><h4 id='method.iter' class="method"><code id='iter.v'>pub fn <a href='#method.iter' class='fnname'>iter</a>(&self) -> <a class="struct" href="../../http/header/struct.Iter.html" title="struct http::header::Iter">Iter</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#794-803' title='goto source code'>[src]</a></h4><div class='docblock'><p>An iterator visiting all key-value pairs.</p>
|
||
<p>The iteration order is arbitrary, but consistent across platforms for
|
||
the same crate version. Each key will be yielded once per associated
|
||
value. So, if a key has 3 associated values, it will be yielded 3 times.</p>
|
||
<h1 id="examples-13" class="section-header"><a href="#examples-13">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">for</span> (<span class="ident">key</span>, <span class="ident">value</span>) <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">iter</span>() {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{:?}: {:?}"</span>, <span class="ident">key</span>, <span class="ident">value</span>);
|
||
}</pre></div>
|
||
</div><h4 id='method.iter_mut' class="method"><code id='iter_mut.v'>pub fn <a href='#method.iter_mut' class='fnname'>iter_mut</a>(&mut self) -> <a class="struct" href="../../http/header/struct.IterMut.html" title="struct http::header::IterMut">IterMut</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#826-833' title='goto source code'>[src]</a></h4><div class='docblock'><p>An iterator visiting all key-value pairs, with mutable value references.</p>
|
||
<p>The iterator order is arbitrary, but consistent across platforms for the
|
||
same crate version. Each key will be yielded once per associated value,
|
||
so if a key has 3 associated values, it will be yielded 3 times.</p>
|
||
<h1 id="examples-14" class="section-header"><a href="#examples-14">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">to_string</span>());
|
||
|
||
<span class="kw">for</span> (<span class="ident">key</span>, <span class="ident">value</span>) <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">iter_mut</span>() {
|
||
<span class="ident">value</span>.<span class="ident">push_str</span>(<span class="string">"-boop"</span>);
|
||
}</pre></div>
|
||
</div><h4 id='method.keys' class="method"><code id='keys.v'>pub fn <a href='#method.keys' class='fnname'>keys</a>(&self) -> <a class="struct" href="../../http/header/struct.Keys.html" title="struct http::header::Keys">Keys</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#856-858' title='goto source code'>[src]</a></h4><div class='docblock'><p>An iterator visiting all keys.</p>
|
||
<p>The iteration order is arbitrary, but consistent across platforms for
|
||
the same crate version. Each key will be yielded only once even if it
|
||
has multiple associated values.</p>
|
||
<h1 id="examples-15" class="section-header"><a href="#examples-15">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">for</span> <span class="ident">key</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">keys</span>() {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">key</span>);
|
||
}</pre></div>
|
||
</div><h4 id='method.values' class="method"><code id='values.v'>pub fn <a href='#method.values' class='fnname'>values</a>(&self) -> <a class="struct" href="../../http/header/struct.Values.html" title="struct http::header::Values">Values</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#880-882' title='goto source code'>[src]</a></h4><div class='docblock'><p>An iterator visiting all values.</p>
|
||
<p>The iteration order is arbitrary, but consistent across platforms for
|
||
the same crate version.</p>
|
||
<h1 id="examples-16" class="section-header"><a href="#examples-16">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">for</span> <span class="ident">value</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">values</span>() {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">value</span>);
|
||
}</pre></div>
|
||
</div><h4 id='method.values_mut' class="method"><code id='values_mut.v'>pub fn <a href='#method.values_mut' class='fnname'>values_mut</a>(&mut self) -> <a class="struct" href="../../http/header/struct.ValuesMut.html" title="struct http::header::ValuesMut">ValuesMut</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#904-906' title='goto source code'>[src]</a></h4><div class='docblock'><p>An iterator visiting all values mutably.</p>
|
||
<p>The iteration order is arbitrary, but consistent across platforms for
|
||
the same crate version.</p>
|
||
<h1 id="examples-17" class="section-header"><a href="#examples-17">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">to_string</span>());
|
||
|
||
<span class="kw">for</span> <span class="ident">value</span> <span class="kw">in</span> <span class="ident">map</span>.<span class="ident">values_mut</span>() {
|
||
<span class="ident">value</span>.<span class="ident">push_str</span>(<span class="string">"-boop"</span>);
|
||
}</pre></div>
|
||
</div><h4 id='method.drain' class="method"><code id='drain.v'>pub fn <a href='#method.drain' class='fnname'>drain</a>(&mut self) -> <a class="struct" href="../../http/header/struct.Drain.html" title="struct http::header::Drain">Drain</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#938-962' title='goto source code'>[src]</a></h4><div class='docblock'><p>Clears the map, returning all entries as an iterator.</p>
|
||
<p>The internal memory is kept for reuse.</p>
|
||
<h1 id="examples-18" class="section-header"><a href="#examples-18">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello"</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">"goodbye"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">drain</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">drain</span>();
|
||
|
||
<span class="kw">let</span> (<span class="ident">key</span>, <span class="kw-2">mut</span> <span class="ident">vals</span>) <span class="op">=</span> <span class="ident">drain</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"host"</span>, <span class="ident">key</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"hello"</span>, <span class="ident">vals</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"goodbye"</span>, <span class="ident">vals</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">vals</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());
|
||
|
||
<span class="kw">let</span> (<span class="ident">key</span>, <span class="kw-2">mut</span> <span class="ident">vals</span>) <span class="op">=</span> <span class="ident">drain</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"content-length"</span>, <span class="ident">key</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"123"</span>, <span class="ident">vals</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">vals</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());</pre></div>
|
||
</div><h4 id='method.entry' class="method"><code id='entry.v'>pub fn <a href='#method.entry' class='fnname'>entry</a><K>(&mut self, key: K) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="../../http/header/enum.Entry.html" title="enum http::header::Entry">Entry</a><T>, <a class="struct" href="../../http/header/struct.InvalidHeaderName.html" title="struct http::header::InvalidHeaderName">InvalidHeaderName</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#1036-1040' title='goto source code'>[src]</a></h4><div class='docblock'><p>Gets the given key's corresponding entry in the map for in-place
|
||
manipulation.</p>
|
||
<h1 id="examples-19" class="section-header"><a href="#examples-19">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span>: <span class="ident">HeaderMap</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">default</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">headers</span> <span class="op">=</span> <span class="kw-2">&</span>[
|
||
<span class="string">"content-length"</span>,
|
||
<span class="string">"x-hello"</span>,
|
||
<span class="string">"Content-Length"</span>,
|
||
<span class="string">"x-world"</span>,
|
||
];
|
||
|
||
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">header</span> <span class="kw">in</span> <span class="ident">headers</span> {
|
||
<span class="kw">let</span> <span class="ident">counter</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">entry</span>(<span class="ident">header</span>).<span class="ident">unwrap</span>().<span class="ident">or_insert</span>(<span class="number">0</span>);
|
||
<span class="kw-2">*</span><span class="ident">counter</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>[<span class="string">"content-length"</span>], <span class="number">2</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>[<span class="string">"x-hello"</span>], <span class="number">1</span>);</pre></div>
|
||
</div><h4 id='method.insert' class="method"><code id='insert.v'>pub fn <a href='#method.insert' class='fnname'>insert</a><K>(&mut self, key: K, val: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><T> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.IntoHeaderName.html" title="trait http::header::IntoHeaderName">IntoHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#1104-1108' title='goto source code'>[src]</a></h4><div class='docblock'><p>Inserts a key-value pair into the map.</p>
|
||
<p>If the map did not previously have this key present, then <code>None</code> is
|
||
returned.</p>
|
||
<p>If the map did have this key present, the new value is associated with
|
||
the key and all previous values are removed. <strong>Note</strong> that only a single
|
||
one of the previous values is returned. If there are multiple values
|
||
that have been previously associated with the key, then the first one is
|
||
returned. See <code>insert_mult</code> on <code>OccupiedEntry</code> for an API that returns
|
||
all values.</p>
|
||
<p>The key is not updated, though; this matters for types that can be <code>==</code>
|
||
without being identical.</p>
|
||
<h1 id="examples-20" class="section-header"><a href="#examples-20">Examples</a></h1>
|
||
<div class="example-wrap"><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="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>()).<span class="ident">is_none</span>());
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">map</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">prev</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"earth"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>()).<span class="ident">unwrap</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"world"</span>, <span class="ident">prev</span>);</pre></div>
|
||
</div><h4 id='method.append' class="method"><code id='append.v'>pub fn <a href='#method.append' class='fnname'>append</a><K>(&mut self, key: K, value: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.IntoHeaderName.html" title="trait http::header::IntoHeaderName">IntoHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#1204-1208' title='goto source code'>[src]</a></h4><div class='docblock'><p>Inserts a key-value pair into the map.</p>
|
||
<p>If the map did not previously have this key present, then <code>false</code> is
|
||
returned.</p>
|
||
<p>If the map did have this key present, the new value is pushed to the end
|
||
of the list of values currently associated with the key. The key is not
|
||
updated, though; this matters for types that can be <code>==</code> without being
|
||
identical.</p>
|
||
<h1 id="examples-21" class="section-header"><a href="#examples-21">Examples</a></h1>
|
||
<div class="example-wrap"><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="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>()).<span class="ident">is_none</span>());
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">map</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">HOST</span>, <span class="string">"earth"</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">"host"</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">"world"</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">"earth"</span>, <span class="kw-2">*</span><span class="ident">i</span>.<span class="ident">next</span>().<span class="ident">unwrap</span>());</pre></div>
|
||
</div><h4 id='method.remove' class="method"><code id='remove.v'>pub fn <a href='#method.remove' class='fnname'>remove</a><K>(&mut self, key: K) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><T> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#1321-1336' title='goto source code'>[src]</a></h4><div class='docblock'><p>Removes a key from the map, returning the value associated with the key.</p>
|
||
<p>Returns <code>None</code> if the map does not contain the key. If there are
|
||
multiple values associated with the key, then the first one is returned.
|
||
See <code>remove_entry_mult</code> on <code>OccupiedEntry</code> for an API that yields all
|
||
values.</p>
|
||
<h1 id="examples-22" class="section-header"><a href="#examples-22">Examples</a></h1>
|
||
<div class="example-wrap"><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">"hello.world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">let</span> <span class="ident">prev</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">remove</span>(<span class="ident">HOST</span>).<span class="ident">unwrap</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="string">"hello.world"</span>, <span class="ident">prev</span>);
|
||
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">map</span>.<span class="ident">remove</span>(<span class="ident">HOST</span>).<span class="ident">is_none</span>());</pre></div>
|
||
</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-Clone' class='impl'><code class='in-band'>impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-Clone' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#44' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.clone' class="method hidden"><code id='clone.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#44' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||
</div><h4 id='method.clone_from' class="method hidden"><code id='clone_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#131-133' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||
</div></div><h3 id='impl-Debug' class='impl'><code class='in-band'>impl<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="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1934-1938' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.fmt' class="method hidden"><code id='fmt.v'>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class='srclink' href='../../src/http/header/map.rs.html#1935-1937' title='goto source code'>[src]</a></h4><div class='docblock hidden'><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-Default' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-Default' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1940-1944' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.default' class="method hidden"><code id='default.v'>fn <a href='https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default' class='fnname'>default</a>() -> Self</code><a class='srclink' href='../../src/http/header/map.rs.html#1941-1943' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Returns the "default value" for a type. <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default">Read more</a></p>
|
||
</div></div><h3 id='impl-Eq' class='impl'><code class='in-band'>impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-Eq' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1932' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-Extend%3C(HeaderName%2C%20T)%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-Extend%3C(HeaderName%2C%20T)%3E' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1897-1918' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.extend-1' class="method hidden"><code id='extend.v-1'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend' class='fnname'>extend</a><I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>>>(&mut self, iter: I)</code><a class='srclink' href='../../src/http/header/map.rs.html#1899-1917' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></p>
|
||
</div></div><h3 id='impl-Extend%3C(Option%3CHeaderName%3E%2C%20T)%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-Extend%3C(Option%3CHeaderName%3E%2C%20T)%3E' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1814-1895' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.extend' class="method"><code id='extend.v'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend' class='fnname'>extend</a><I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>>>(&mut self, iter: I)</code><a class='srclink' href='../../src/http/header/map.rs.html#1851-1894' title='goto source code'>[src]</a></h4><div class='docblock'><p>Extend a <code>HeaderMap</code> with the contents of another <code>HeaderMap</code>.</p>
|
||
<p>This function expects the yielded items to follow the same structure as
|
||
<code>IntoIter</code>.</p>
|
||
<h1 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h1>
|
||
<p>This panics if the first yielded item does not have a <code>HeaderName</code>.</p>
|
||
<h1 id="examples-24" class="section-header"><a href="#examples-24">Examples</a></h1>
|
||
<div class="example-wrap"><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">ACCEPT</span>, <span class="string">"text/plain"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"hello.world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">extra</span> <span class="op">=</span> <span class="ident">HeaderMap</span>::<span class="ident">new</span>();
|
||
|
||
<span class="ident">extra</span>.<span class="ident">insert</span>(<span class="ident">HOST</span>, <span class="string">"foo.bar"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">extra</span>.<span class="ident">insert</span>(<span class="ident">COOKIE</span>, <span class="string">"hello"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">extra</span>.<span class="ident">append</span>(<span class="ident">COOKIE</span>, <span class="string">"world"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="ident">map</span>.<span class="ident">extend</span>(<span class="ident">extra</span>);
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>[<span class="string">"host"</span>], <span class="string">"foo.bar"</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>[<span class="string">"accept"</span>], <span class="string">"text/plain"</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">map</span>[<span class="string">"cookie"</span>], <span class="string">"hello"</span>);
|
||
|
||
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_all</span>(<span class="string">"host"</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">1</span>, <span class="ident">v</span>.<span class="ident">iter</span>().<span class="ident">count</span>());
|
||
|
||
<span class="kw">let</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">map</span>.<span class="ident">get_all</span>(<span class="string">"cookie"</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">2</span>, <span class="ident">v</span>.<span class="ident">iter</span>().<span class="ident">count</span>());</pre></div>
|
||
</div></div><h3 id='impl-FromIterator%3C(HeaderName%2C%20T)%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.FromIterator.html" title="trait core::iter::traits::collect::FromIterator">FromIterator</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-FromIterator%3C(HeaderName%2C%20T)%3E' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1770-1779' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from_iter' class="method hidden"><code id='from_iter.v'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter' class='fnname'>from_iter</a><I>(iter: I) -> Self <span class="where fmt-newline">where<br> I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>>, </span></code><a class='srclink' href='../../src/http/header/map.rs.html#1772-1778' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates a value from an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter">Read more</a></p>
|
||
</div></div><h3 id='impl-HttpTryFrom%3C%26%27a%20HashMap%3CK%2C%20V%2C%20RandomState%3E%3E' class='impl'><code class='in-band'>impl<'a, K, V, T> <a class="trait" href="../../http/trait.HttpTryFrom.html" title="trait http::HttpTryFrom">HttpTryFrom</a><&'a <a class="struct" href="https://doc.rust-lang.org/nightly/std/collections/hash/map/struct.HashMap.html" title="struct std::collections::hash::map::HashMap">HashMap</a><K, V, <a class="struct" href="https://doc.rust-lang.org/nightly/std/collections/hash/map/struct.RandomState.html" title="struct std::collections::hash::map::RandomState">RandomState</a>>> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> K: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> <a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>: <a class="trait" href="../../http/trait.HttpTryFrom.html" title="trait http::HttpTryFrom">HttpTryFrom</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a </a>K>,<br> T: <a class="trait" href="../../http/trait.HttpTryFrom.html" title="trait http::HttpTryFrom">HttpTryFrom</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a </a>V>, </span></code><a href='#impl-HttpTryFrom%3C%26%27a%20HashMap%3CK%2C%20V%2C%20RandomState%3E%3E' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1795-1812' title='goto source code'>[src]</a></h3><div class='docblock'><p>Try to convert a <code>HashMap</code> into a <code>HeaderMap</code>.</p>
|
||
<h1 id="examples-23" class="section-header"><a href="#examples-23">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">HashMap</span>;
|
||
<span class="kw">use</span> <span class="ident">http</span>::{<span class="ident">HttpTryFrom</span>, <span class="ident">header</span>::<span class="ident">HeaderMap</span>};
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">map</span> <span class="op">=</span> <span class="ident">HashMap</span>::<span class="ident">new</span>();
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="string">"X-Custom-Header"</span>.<span class="ident">to_string</span>(), <span class="string">"my value"</span>.<span class="ident">to_string</span>());
|
||
|
||
<span class="kw">let</span> <span class="ident">headers</span>: <span class="ident">HeaderMap</span> <span class="op">=</span> <span class="ident">HttpTryFrom</span>::<span class="ident">try_from</span>(<span class="kw-2">&</span><span class="ident">map</span>).<span class="ident">expect</span>(<span class="string">"valid headers"</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">headers</span>[<span class="string">"X-Custom-Header"</span>], <span class="string">"my value"</span>);</pre></div>
|
||
</div><div class='impl-items'><h4 id='associatedtype.Error' class="type"><code id='Error.t'>type <a href='../../http/trait.HttpTryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="struct" href="../../http/struct.Error.html" title="struct http::Error">Error</a></code></h4><div class='docblock'><p>Associated error with the conversion this implementation represents.</p>
|
||
</div><h4 id='method.try_from' class="method hidden"><code id='try_from.v'>fn <a href='../../http/trait.HttpTryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(c: &'a <a class="struct" href="https://doc.rust-lang.org/nightly/std/collections/hash/map/struct.HashMap.html" title="struct std::collections::hash::map::HashMap">HashMap</a><K, V>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self, Self::<a class="type" href="../../http/trait.HttpTryFrom.html#associatedtype.Error" title="type http::HttpTryFrom::Error">Error</a>></code><a class='srclink' href='../../src/http/header/map.rs.html#1803-1811' title='goto source code'>[src]</a></h4></div><h3 id='impl-HttpTryFrom%3CHeaderMap%3CT%3E%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../http/trait.HttpTryFrom.html" title="trait http::HttpTryFrom">HttpTryFrom</a><<a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T>> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-HttpTryFrom%3CHeaderMap%3CT%3E%3E' class='anchor'></a><a class='srclink' href='../../src/http/convert.rs.html#68-74' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='../../http/trait.HttpTryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="struct" href="../../http/struct.Error.html" title="struct http::Error">Error</a></code></h4><div class='docblock'><p>Associated error with the conversion this implementation represents.</p>
|
||
</div><h4 id='method.try_from-1' class="method hidden"><code id='try_from.v-1'>fn <a href='../../http/trait.HttpTryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(t: Self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self, Self::<a class="type" href="../../http/trait.HttpTryFrom.html#associatedtype.Error" title="type http::HttpTryFrom::Error">Error</a>></code><a class='srclink' href='../../src/http/convert.rs.html#71-73' title='goto source code'>[src]</a></h4></div><h3 id='impl-Index%3CK%3E' class='impl'><code class='in-band'>impl<'a, K, T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a><K> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> K: <a class="trait" href="../../http/header/trait.AsHeaderName.html" title="trait http::header::AsHeaderName">AsHeaderName</a>, </span></code><a href='#impl-Index%3CK%3E' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1946-1960' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Output' class="type"><code id='Output.t'>type <a href='https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#associatedtype.Output' class="type">Output</a> = T</code></h4><div class='docblock'><p>The returned type after indexing.</p>
|
||
</div><h4 id='method.index' class="method"><code id='index.v'>fn <a href='https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#tymethod.index' class='fnname'>index</a>(&self, index: K) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class='srclink' href='../../src/http/header/map.rs.html#1954-1959' title='goto source code'>[src]</a></h4><div class='docblock'><h1 id="panics-2" class="section-header"><a href="#panics-2">Panics</a></h1>
|
||
<p>Using the index operator will cause a panic if the header you're querying isn't set.</p>
|
||
</div></div><h3 id='impl-IntoIterator' class='impl'><code class='in-band'>impl<'a, T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-IntoIterator' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1690-1697' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item' class="type"><code id='Item.t'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&'a <a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a </a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||
</div><h4 id='associatedtype.IntoIter' class="type"><code id='IntoIter.t'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../http/header/struct.Iter.html" title="struct http::header::Iter">Iter</a><'a, T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||
</div><h4 id='method.into_iter' class="method hidden"><code id='into_iter.v'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> <a class="struct" href="../../http/header/struct.Iter.html" title="struct http::header::Iter">Iter</a><'a, T></code><a class='srclink' href='../../src/http/header/map.rs.html#1694-1696' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||
</div></div><h3 id='impl-IntoIterator-1' class='impl'><code class='in-band'>impl<'a, T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a mut <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-IntoIterator-1' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1699-1706' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item-1' class="type"><code id='Item.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>&'a <a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>, <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&'a mut </a>T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||
</div><h4 id='associatedtype.IntoIter-1' class="type"><code id='IntoIter.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../http/header/struct.IterMut.html" title="struct http::header::IterMut">IterMut</a><'a, T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||
</div><h4 id='method.into_iter-1' class="method hidden"><code id='into_iter.v-1'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> <a class="struct" href="../../http/header/struct.IterMut.html" title="struct http::header::IterMut">IterMut</a><'a, T></code><a class='srclink' href='../../src/http/header/map.rs.html#1703-1705' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||
</div></div><h3 id='impl-IntoIterator-2' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-IntoIterator-2' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1708-1768' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item-2' class="type"><code id='Item.t-2'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a><a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../../http/header/struct.HeaderName.html" title="struct http::header::HeaderName">HeaderName</a>>, T<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||
</div><h4 id='associatedtype.IntoIter-2' class="type"><code id='IntoIter.t-2'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../http/header/struct.IntoIter.html" title="struct http::header::IntoIter">IntoIter</a><T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||
</div><h4 id='method.into_iter-2' class="method"><code id='into_iter.v-2'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> <a class="struct" href="../../http/header/struct.IntoIter.html" title="struct http::header::IntoIter">IntoIter</a><T></code><a class='srclink' href='../../src/http/header/map.rs.html#1761-1767' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates a consuming iterator, that is, one that moves keys and values
|
||
out of the map in arbitrary order. The map cannot be used after calling
|
||
this.</p>
|
||
<p>For each yielded item that has <code>None</code> provided for the <code>HeaderName</code>,
|
||
then the associated header name is the same as that of the previously
|
||
yielded item. The first yielded item will have <code>HeaderName</code> set.</p>
|
||
<h1 id="examples-25" class="section-header"><a href="#examples-25">Examples</a></h1>
|
||
<p>Basic usage.</p>
|
||
|
||
<div class="example-wrap"><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">header</span>::<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">insert</span>(<span class="ident">header</span>::<span class="ident">CONTENT_TYPE</span>, <span class="string">"json"</span>.<span class="ident">parse</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">map</span>.<span class="ident">into_iter</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">Some</span>(<span class="ident">header</span>::<span class="ident">CONTENT_LENGTH</span>), <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>())));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">Some</span>(<span class="ident">header</span>::<span class="ident">CONTENT_TYPE</span>), <span class="string">"json"</span>.<span class="ident">parse</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>
|
||
<p>Multiple values per key.</p>
|
||
|
||
<div class="example-wrap"><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">append</span>(<span class="ident">header</span>::<span class="ident">CONTENT_LENGTH</span>, <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">header</span>::<span class="ident">CONTENT_LENGTH</span>, <span class="string">"456"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
|
||
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">header</span>::<span class="ident">CONTENT_TYPE</span>, <span class="string">"json"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">header</span>::<span class="ident">CONTENT_TYPE</span>, <span class="string">"html"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>());
|
||
<span class="ident">map</span>.<span class="ident">append</span>(<span class="ident">header</span>::<span class="ident">CONTENT_TYPE</span>, <span class="string">"xml"</span>.<span class="ident">parse</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">map</span>.<span class="ident">into_iter</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">Some</span>(<span class="ident">header</span>::<span class="ident">CONTENT_LENGTH</span>), <span class="string">"123"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>())));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">None</span>, <span class="string">"456"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>())));
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">Some</span>(<span class="ident">header</span>::<span class="ident">CONTENT_TYPE</span>), <span class="string">"json"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>())));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">None</span>, <span class="string">"html"</span>.<span class="ident">parse</span>().<span class="ident">unwrap</span>())));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>((<span class="prelude-val">None</span>, <span class="string">"xml"</span>.<span class="ident">parse</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>
|
||
</div></div><h3 id='impl-PartialEq%3CHeaderMap%3CT%3E%3E' class='impl'><code class='in-band'>impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a><<a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T>> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T></code><a href='#impl-PartialEq%3CHeaderMap%3CT%3E%3E' class='anchor'></a><a class='srclink' href='../../src/http/header/map.rs.html#1920-1930' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.eq' class="method hidden"><code id='eq.v'>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, other: &<a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../../src/http/header/map.rs.html#1921-1929' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
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||
</div><h4 id='method.ne' class="method hidden"><code id='ne.v'><span class="docblock attributes">#[must_use]
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</span>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#215-217' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>!=</code>.</p>
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||
</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-RefUnwindSafe' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a>, </span></code><a href='#impl-RefUnwindSafe' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Send' class='impl'><code class='in-band'>impl<T> <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="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>, </span></code><a href='#impl-Send' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl<T> <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="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>, </span></code><a href='#impl-Sync' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Unpin' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>, </span></code><a href='#impl-Unpin' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-UnwindSafe' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../http/header/struct.HeaderMap.html" title="struct http::header::HeaderMap">HeaderMap</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a>, </span></code><a href='#impl-UnwindSafe' class='anchor'></a></h3><div class='impl-items'></div></div><h2 id='blanket-implementations' class='small-section-header'>Blanket Implementations<a href='#blanket-implementations' class='anchor'></a></h2><div id='blanket-implementations-list'><h3 id='impl-Any' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#108-112' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.type_id' class="method hidden"><code id='type_id.v'>fn <a href='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#109-111' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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</div></div><h3 id='impl-Borrow%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Borrow%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-217' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow' class="method hidden"><code id='borrow.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-216' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||
</div></div><h3 id='impl-BorrowMut%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-BorrowMut%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220-224' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow_mut' class="method hidden"><code id='borrow_mut.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221-223' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
|
||
</div></div><h3 id='impl-From%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href='#impl-From%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#564-568' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#565-567' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-Into%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href='#impl-Into%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#553-560' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.into' class="method hidden"><code id='into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> U</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#557-559' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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||
</div></div><h3 id='impl-IntoIterator-3' class='impl'><code class='in-band'>impl<I> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for I <span class="where fmt-newline">where<br> I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a>, </span></code><a href='#impl-IntoIterator-3' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#243-250' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item-3' class="type"><code id='Item.t-3'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <I as <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
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</div><h4 id='associatedtype.IntoIter-3' class="type"><code id='IntoIter.t-3'>type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = I</code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
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</div><h4 id='method.into_iter-3' class="method hidden"><code id='into_iter.v-3'>fn <a href='https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> I</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#247-249' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
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</div></div><h3 id='impl-ToOwned' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href='#impl-ToOwned' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#80-92' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Owned' class="type"><code id='Owned.t'>type <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned' class="type">Owned</a> = T</code></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
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</div><h4 id='method.to_owned' class="method hidden"><code id='to_owned.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned' class='fnname'>to_owned</a>(&self) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#85-87' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
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</div><h4 id='method.clone_into' class="method hidden"><code id='clone_into.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into' class='fnname'>clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#89-91' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab unstable'><details><summary><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
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</details></div></div><div class='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
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</div></div><h3 id='impl-TryFrom%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href='#impl-TryFrom%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#601-610' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-2' class="type"><code id='Error.t-2'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_from-2' class="method hidden"><code id='try_from.v-2'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#607-609' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryInto%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href='#impl-TryInto%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587-596' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-3' class="type"><code id='Error.t-3'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_into' class="method hidden"><code id='try_into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#593-595' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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||
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