| <!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="Represents a custom metadata field name."><meta name="keywords" content="rust, rustlang, rust-lang, MetadataKey"><title>MetadataKey in tonic::metadata - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">☰</button><a class="sidebar-logo" href="../../tonic/index.html"><div class="logo-container"><img src="https://raw.githubusercontent.com/tokio-rs/website/master/public/img/icons/tonic.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../tonic/index.html"><div class="logo-container"> |
| <img src="https://raw.githubusercontent.com/tokio-rs/website/master/public/img/icons/tonic.svg" alt="logo"></div></a><h2 class="location"><a href="#">MetadataKey</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.as_str">as_str</a></li><li><a href="#method.from_bytes">from_bytes</a></li><li><a href="#method.from_static">from_static</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-AsRef%3C%5Bu8%5D%3E-for-MetadataKey%3CVE%3E">AsRef<[u8]></a></li><li><a href="#impl-AsRef%3Cstr%3E-for-MetadataKey%3CVE%3E">AsRef<str></a></li><li><a href="#impl-Borrow%3Cstr%3E-for-MetadataKey%3CVE%3E">Borrow<str></a></li><li><a href="#impl-Clone-for-MetadataKey%3CVE%3E">Clone</a></li><li><a href="#impl-Debug-for-MetadataKey%3CVE%3E">Debug</a></li><li><a href="#impl-Display-for-MetadataKey%3CVE%3E">Display</a></li><li><a href="#impl-Eq-for-MetadataKey%3CVE%3E">Eq</a></li><li><a href="#impl-From%3C%26%27a%20MetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E">From<&'a MetadataKey<VE>></a></li><li><a href="#impl-From%3CMetadataKey%3CVE%3E%3E-for-Bytes">From<MetadataKey<VE>></a></li><li><a href="#impl-FromStr-for-MetadataKey%3CVE%3E">FromStr</a></li><li><a href="#impl-Hash-for-MetadataKey%3CVE%3E">Hash</a></li><li><a href="#impl-PartialEq%3C%26%27a%20MetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E">PartialEq<&'a MetadataKey<VE>></a></li><li><a href="#impl-PartialEq%3C%26%27a%20str%3E-for-MetadataKey%3CVE%3E">PartialEq<&'a str></a></li><li><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-%26%27a%20MetadataKey%3CVE%3E">PartialEq<MetadataKey<VE>></a></li><li><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-%26%27a%20str">PartialEq<MetadataKey<VE>></a></li><li><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E">PartialEq<MetadataKey<VE>></a></li><li><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-str">PartialEq<MetadataKey<VE>></a></li><li><a href="#impl-PartialEq%3Cstr%3E-for-MetadataKey%3CVE%3E">PartialEq<str></a></li><li><a href="#impl-StructuralEq-for-MetadataKey%3CVE%3E">StructuralEq</a></li><li><a href="#impl-StructuralPartialEq-for-MetadataKey%3CVE%3E">StructuralPartialEq</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-MetadataKey%3CVE%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-MetadataKey%3CVE%3E">Send</a></li><li><a href="#impl-Sync-for-MetadataKey%3CVE%3E">Sync</a></li><li><a href="#impl-Unpin-for-MetadataKey%3CVE%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-MetadataKey%3CVE%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-MetadataKey%3CVE%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-MetadataKey%3CVE%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-MetadataKey%3CVE%3E">BorrowMut<T></a></li><li><a href="#impl-Equivalent%3CK%3E-for-MetadataKey%3CVE%3E">Equivalent<K></a></li><li><a href="#impl-From%3CT%3E-for-MetadataKey%3CVE%3E">From<T></a></li><li><a href="#impl-Instrument-for-MetadataKey%3CVE%3E">Instrument</a></li><li><a href="#impl-Instrument-for-MetadataKey%3CVE%3E-1">Instrument</a></li><li><a href="#impl-Into%3CU%3E-for-MetadataKey%3CVE%3E">Into<U></a></li><li><a href="#impl-ToOwned-for-MetadataKey%3CVE%3E">ToOwned</a></li><li><a href="#impl-ToString-for-MetadataKey%3CVE%3E">ToString</a></li><li><a href="#impl-TryFrom%3CU%3E-for-MetadataKey%3CVE%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-MetadataKey%3CVE%3E">TryInto<U></a></li><li><a href="#impl-VZip%3CV%3E-for-MetadataKey%3CVE%3E">VZip<V></a></li><li><a href="#impl-WithSubscriber-for-MetadataKey%3CVE%3E">WithSubscriber</a></li><li><a href="#impl-WithSubscriber-for-MetadataKey%3CVE%3E-1">WithSubscriber</a></li></ul></section><h2><a href="index.html">In tonic::metadata</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../index.html">tonic</a>::<wbr><a href="index.html">metadata</a>::<wbr><a class="struct" href="#">MetadataKey</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../src/tonic/metadata/key.rs.html#19-24">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code><div class="code-attribute">#[repr(transparent)]</div>pub struct MetadataKey<VE: ValueEncoding> { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Represents a custom metadata field name.</p> |
| <p><code>MetadataKey</code> is used as the <a href="struct.MetadataMap.html"><code>MetadataMap</code></a> key.</p> |
| </div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#37-140">source</a><a href="#impl-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from_bytes" class="method has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#41-55">source</a><h4 class="code-header">pub fn <a href="#method.from_bytes" class="fnname">from_bytes</a>(src: &[u8]) -> Result<Self, <a class="struct" href="errors/struct.InvalidMetadataKey.html" title="struct tonic::metadata::errors::InvalidMetadataKey">InvalidMetadataKey</a>></h4></section></summary><div class="docblock"><p>Converts a slice of bytes to a <code>MetadataKey</code>.</p> |
| <p>This function normalizes the input.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from_static" class="method has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#102-112">source</a><h4 class="code-header">pub fn <a href="#method.from_static" class="fnname">from_static</a>(src: &'static str) -> Self</h4></section></summary><div class="docblock"><p>Converts a static string to a <code>MetadataKey</code>.</p> |
| <p>This function panics when the static string is a invalid metadata key.</p> |
| <p>This function requires the static string to only contain lowercase |
| characters, numerals and symbols, as per the HTTP/2.0 specification |
| and header names internal representation within this library.</p> |
| <h5 id="examples"><a href="#examples">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="comment">// Parsing a metadata key |
| </span><span class="kw">let </span>CUSTOM_KEY: <span class="kw-2">&</span><span class="lifetime">'static </span>str = <span class="string">"custom-key"</span>; |
| |
| <span class="kw">let </span>a = AsciiMetadataKey::from_bytes(<span class="string">b"custom-key"</span>).unwrap(); |
| <span class="kw">let </span>b = AsciiMetadataKey::from_static(CUSTOM_KEY); |
| <span class="macro">assert_eq!</span>(a, b);</code></pre></div> |
| |
| <div class="example-wrap should_panic"><div class='tooltip'>ⓘ</div><pre class="rust rust-example-rendered"><code><span class="comment">// Parsing a metadata key that contains invalid symbols(s): |
| </span>AsciiMetadataKey::from_static(<span class="string">"content{}{}length"</span>); <span class="comment">// This line panics!</span></code></pre></div> |
| |
| <div class="example-wrap should_panic"><div class='tooltip'>ⓘ</div><pre class="rust rust-example-rendered"><code><span class="comment">// Parsing a metadata key that contains invalid uppercase characters. |
| </span><span class="kw">let </span>a = AsciiMetadataKey::from_static(<span class="string">"foobar"</span>); |
| <span class="kw">let </span>b = AsciiMetadataKey::from_static(<span class="string">"FOOBAR"</span>); <span class="comment">// This line panics!</span></code></pre></div> |
| |
| <div class="example-wrap should_panic"><div class='tooltip'>ⓘ</div><pre class="rust rust-example-rendered"><code><span class="comment">// Parsing a -bin metadata key as an Ascii key. |
| </span><span class="kw">let </span>b = AsciiMetadataKey::from_static(<span class="string">"hello-bin"</span>); <span class="comment">// This line panics!</span></code></pre></div> |
| |
| <div class="example-wrap should_panic"><div class='tooltip'>ⓘ</div><pre class="rust rust-example-rendered"><code><span class="comment">// Parsing a non-bin metadata key as an Binary key. |
| </span><span class="kw">let </span>b = BinaryMetadataKey::from_static(<span class="string">"hello"</span>); <span class="comment">// This line panics!</span></code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.as_str" class="method has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#118-120">source</a><h4 class="code-header">pub fn <a href="#method.as_str" class="fnname">as_str</a>(&self) -> &str</h4></section></summary><div class="docblock"><p>Returns a <code>str</code> representation of the metadata key.</p> |
| <p>The returned string will always be lower case.</p> |
| </div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-AsRef%3C%5Bu8%5D%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#156-160">source</a><a href="#impl-AsRef%3C%5Bu8%5D%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> AsRef<[u8]> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.as_ref-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#157-159">source</a><a href="#method.as_ref-1" class="anchor"></a><h4 class="code-header">fn <a class="fnname">as_ref</a>(&self) -> &[u8]</h4></section></summary><div class='docblock'>Converts this type into a shared reference of the (usually inferred) input type.</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-AsRef%3Cstr%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#150-154">source</a><a href="#impl-AsRef%3Cstr%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> AsRef<str> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.as_ref" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#151-153">source</a><a href="#method.as_ref" class="anchor"></a><h4 class="code-header">fn <a class="fnname">as_ref</a>(&self) -> &str</h4></section></summary><div class='docblock'>Converts this type into a shared reference of the (usually inferred) input type.</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Borrow%3Cstr%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#162-166">source</a><a href="#impl-Borrow%3Cstr%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> Borrow<str> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#163-165">source</a><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &str</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Clone-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#impl-Clone-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: Clone + ValueEncoding> Clone for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone</a>(&self) -> <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h4></section></summary><div class='docblock'>Returns a copy of the value. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">clone_from</a>(&mut self, source: &Self)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#168-172">source</a><a href="#impl-Debug-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> Debug for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#169-171">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, fmt: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Display-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#174-178">source</a><a href="#impl-Display-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> Display for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#175-177">source</a><a href="#method.fmt-1" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, fmt: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-From%3C%26%27a%20MetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#187-191">source</a><a href="#impl-From%3C%26%27a%20MetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<'a, VE: ValueEncoding> From<&'a <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#188-190">source</a><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(src: &'a <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h4></section></summary><div class='docblock'>Converts to this type from the input type.</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-From%3CMetadataKey%3CVE%3E%3E-for-Bytes" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#193-198">source</a><a href="#impl-From%3CMetadataKey%3CVE%3E%3E-for-Bytes" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> From<<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for <a class="struct" href="../../bytes/bytes/struct.Bytes.html" title="struct bytes::bytes::Bytes">Bytes</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#195-197">source</a><a href="#method.from-1" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(name: <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> <a class="struct" href="../../bytes/bytes/struct.Bytes.html" title="struct bytes::bytes::Bytes">Bytes</a></h4></section></summary><div class='docblock'>Converts to this type from the input type.</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-FromStr-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#142-148">source</a><a href="#impl-FromStr-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> FromStr for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Err" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Err" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Err</a> = <a class="struct" href="errors/struct.InvalidMetadataKey.html" title="struct tonic::metadata::errors::InvalidMetadataKey">InvalidMetadataKey</a></h4></section></summary><div class='docblock'>The associated error which can be returned from parsing.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from_str" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#145-147">source</a><a href="#method.from_str" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from_str</a>(s: &str) -> Result<Self, <a class="struct" href="errors/struct.InvalidMetadataKey.html" title="struct tonic::metadata::errors::InvalidMetadataKey">InvalidMetadataKey</a>></h4></section></summary><div class='docblock'>Parses a string <code>s</code> to return a value of this type. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Hash-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#impl-Hash-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: Hash + ValueEncoding> Hash for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.hash" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#method.hash" class="anchor"></a><h4 class="code-header">fn <a class="fnname">hash</a><__H: Hasher>(&self, state: &mut __H)</h4></section></summary><div class='docblock'>Feeds this value into the given [<code>Hasher</code>]. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.hash_slice" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.3.0">1.3.0</span><a href="#method.hash_slice" class="anchor"></a><h4 class="code-header">fn <a class="fnname">hash_slice</a><H>(data: &[Self], state: &mut H)<span class="where fmt-newline">where<br> H: Hasher,</span></h4></section></summary><div class='docblock'>Feeds a slice of this type into the given [<code>Hasher</code>]. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3C%26%27a%20MetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#200-205">source</a><a href="#impl-PartialEq%3C%26%27a%20MetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<'a, VE: ValueEncoding> PartialEq<&'a <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#202-204">source</a><a href="#method.eq-1" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &&'a <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used |
| by <code>==</code>. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne-1" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne-1" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3C%26%27a%20str%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#254-261">source</a><a href="#impl-PartialEq%3C%26%27a%20str%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<'a, VE: ValueEncoding> PartialEq<&'a str> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq-5" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#258-260">source</a><a href="#method.eq-5" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &&'a str) -> bool</h4></section></summary><div class="docblock"><p>Performs a case-insensitive comparison of the string against the header |
| name</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne-5" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne-5" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-%26%27a%20MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#207-212">source</a><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-%26%27a%20MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<'a, VE: ValueEncoding> PartialEq<<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for &'a <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq-2" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#209-211">source</a><a href="#method.eq-2" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used |
| by <code>==</code>. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne-2" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne-2" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-%26%27a%20str" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#263-270">source</a><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-%26%27a%20str" class="anchor"></a><h3 class="code-header">impl<'a, VE: ValueEncoding> PartialEq<<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for &'a str</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq-6" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#267-269">source</a><a href="#method.eq-6" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> bool</h4></section></summary><div class="docblock"><p>Performs a case-insensitive comparison of the string against the header |
| name</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne-6" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne-6" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: PartialEq + ValueEncoding> PartialEq<<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#method.eq" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used |
| by <code>==</code>. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-str" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#234-252">source</a><a href="#impl-PartialEq%3CMetadataKey%3CVE%3E%3E-for-str" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> PartialEq<<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>> for str</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq-4" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#249-251">source</a><a href="#method.eq-4" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &<a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE>) -> bool</h4></section></summary><div class="docblock"><p>Performs a case-insensitive comparison of the string against the header |
| name</p> |
| <h5 id="examples-2"><a href="#examples-2">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>content_length = AsciiMetadataKey::from_static(<span class="string">"content-length"</span>); |
| |
| <span class="macro">assert_eq!</span>(content_length, <span class="string">"content-length"</span>); |
| <span class="macro">assert_eq!</span>(content_length, <span class="string">"Content-Length"</span>); |
| <span class="macro">assert_ne!</span>(content_length, <span class="string">"content length"</span>);</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne-4" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne-4" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3Cstr%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#214-232">source</a><a href="#impl-PartialEq%3Cstr%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> PartialEq<str> for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq-3" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#229-231">source</a><a href="#method.eq-3" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &str) -> bool</h4></section></summary><div class="docblock"><p>Performs a case-insensitive comparison of the string against the header |
| name</p> |
| <h5 id="examples-1"><a href="#examples-1">Examples</a></h5> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>content_length = AsciiMetadataKey::from_static(<span class="string">"content-length"</span>); |
| |
| <span class="macro">assert_eq!</span>(content_length, <span class="string">"content-length"</span>); |
| <span class="macro">assert_eq!</span>(content_length, <span class="string">"Content-Length"</span>); |
| <span class="macro">assert_ne!</span>(content_length, <span class="string">"content length"</span>);</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne-3" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne-3" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><section id="impl-Eq-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#impl-Eq-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: Eq + ValueEncoding> Eq for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section><section id="impl-StructuralEq-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#impl-StructuralEq-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> StructuralEq for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section><section id="impl-StructuralPartialEq-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tonic/metadata/key.rs.html#17">source</a><a href="#impl-StructuralPartialEq-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE: ValueEncoding> StructuralPartialEq for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE></h3></section></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE> RefUnwindSafe for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE><span class="where fmt-newline">where<br> VE: RefUnwindSafe,</span></h3></section><section id="impl-Send-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-Send-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE> Send for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE><span class="where fmt-newline">where<br> VE: Send,</span></h3></section><section id="impl-Sync-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-Sync-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE> Sync for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE><span class="where fmt-newline">where<br> VE: Sync,</span></h3></section><section id="impl-Unpin-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-Unpin-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE> Unpin for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE><span class="where fmt-newline">where<br> VE: Unpin,</span></h3></section><section id="impl-UnwindSafe-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<VE> UnwindSafe for <a class="struct" href="struct.MetadataKey.html" title="struct tonic::metadata::MetadataKey">MetadataKey</a><VE><span class="where fmt-newline">where<br> VE: UnwindSafe,</span></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-Any-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where<br> T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow-1" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow-1" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Equivalent%3CK%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/indexmap/equivalent.rs.html#18">source</a><a href="#impl-Equivalent%3CK%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<Q, K> <a class="trait" href="../../indexmap/equivalent/trait.Equivalent.html" title="trait indexmap::equivalent::Equivalent">Equivalent</a><K> for Q<span class="where fmt-newline">where<br> Q: Eq + ?Sized,<br> K: Borrow<Q> + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.equivalent" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/indexmap/equivalent.rs.html#24">source</a><a href="#method.equivalent" class="anchor"></a><h4 class="code-header">fn <a href="../../indexmap/equivalent/trait.Equivalent.html#tymethod.equivalent" class="fnname">equivalent</a>(&self, key: &K) -> bool</h4></section></summary><div class='docblock'>Compare self to <code>key</code> and return <code>true</code> if they are equal.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> From<T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from-2" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from-2" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Instrument-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tracing/instrument.rs.html#276">source</a><a href="#impl-Instrument-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="../../tracing/instrument/trait.Instrument.html" title="trait tracing::instrument::Instrument">Instrument</a> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.instrument" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing/instrument.rs.html#82">source</a><a href="#method.instrument" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.Instrument.html#method.instrument" class="fnname">instrument</a>(self, span: <a class="struct" href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span">Span</a>) -> <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Instruments this type with the provided <a href="../../tracing/span/struct.Span.html" title="Span"><code>Span</code></a>, returning an |
| <code>Instrumented</code> wrapper. <a href="../../tracing/instrument/trait.Instrument.html#method.instrument">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.in_current_span" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing/instrument.rs.html#121">source</a><a href="#method.in_current_span" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.Instrument.html#method.in_current_span" class="fnname">in_current_span</a>(self) -> <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Instruments this type with the <a href="../../tracing/span/struct.Span.html#method.current">current</a> <a href="../../tracing/span/struct.Span.html"><code>Span</code></a>, returning an |
| <code>Instrumented</code> wrapper. <a href="../../tracing/instrument/trait.Instrument.html#method.in_current_span">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Instrument-for-MetadataKey%3CVE%3E-1" class="impl has-srclink"><a class="srclink rightside" href="../../src/tracing_futures/lib.rs.html#273">source</a><a href="#impl-Instrument-for-MetadataKey%3CVE%3E-1" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="../../tracing_futures/trait.Instrument.html" title="trait tracing_futures::Instrument">Instrument</a> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.instrument-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing_futures/lib.rs.html#154">source</a><a href="#method.instrument-1" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing_futures/trait.Instrument.html#method.instrument" class="fnname">instrument</a>(self, span: <a class="struct" href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span">Span</a>) -> <a class="struct" href="../../tracing_futures/struct.Instrumented.html" title="struct tracing_futures::Instrumented">Instrumented</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing_futures/struct.Instrumented.html" title="struct tracing_futures::Instrumented">Instrumented</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing_futures/struct.Instrumented.html" title="struct tracing_futures::Instrumented">Instrumented</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Instruments this type with the provided <code>Span</code>, returning an |
| <code>Instrumented</code> wrapper. <a href="../../tracing_futures/trait.Instrument.html#method.instrument">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.in_current_span-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing_futures/lib.rs.html#191">source</a><a href="#method.in_current_span-1" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing_futures/trait.Instrument.html#method.in_current_span" class="fnname">in_current_span</a>(self) -> <a class="struct" href="../../tracing_futures/struct.Instrumented.html" title="struct tracing_futures::Instrumented">Instrumented</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing_futures/struct.Instrumented.html" title="struct tracing_futures::Instrumented">Instrumented</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing_futures/struct.Instrumented.html" title="struct tracing_futures::Instrumented">Instrumented</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Instruments this type with the <a href="https://docs.rs/tracing/latest/tracing/span/struct.Span.html#method.current">current</a> <code>Span</code>, returning an |
| <code>Instrumented</code> wrapper. <a href="../../tracing_futures/trait.Instrument.html#method.in_current_span">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where<br> U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code>[From]<T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-ToOwned-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> ToOwned for T<span class="where fmt-newline">where<br> T: Clone,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Owned" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a class="fnname">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone_into</a>(&self, target: &mut T)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToString-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-ToString-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> ToString for T<span class="where fmt-newline">where<br> T: Display + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_string" class="method trait-impl has-srclink"><a href="#method.to_string" class="anchor"></a><h4 class="code-header">default fn <a class="fnname">to_string</a>(&self) -> String</h4></section></summary><div class='docblock'>Converts the given value to a <code>String</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where<br> U: Into<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where<br> U: TryFrom<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-VZip%3CV%3E-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/ppv_lite86/types.rs.html#221">source</a><a href="#impl-VZip%3CV%3E-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<V, T> <a class="trait" href="../../ppv_lite86/types/trait.VZip.html" title="trait ppv_lite86::types::VZip">VZip</a><V> for T<span class="where fmt-newline">where<br> V: <a class="trait" href="../../ppv_lite86/types/trait.MultiLane.html" title="trait ppv_lite86::types::MultiLane">MultiLane</a><T>,</span></h3></section></summary><div class="impl-items"><section id="method.vzip" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/ppv_lite86/types.rs.html#226">source</a><a href="#method.vzip" class="anchor"></a><h4 class="code-header">fn <a href="../../ppv_lite86/types/trait.VZip.html#tymethod.vzip" class="fnname">vzip</a>(self) -> V</h4></section></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-WithSubscriber-for-MetadataKey%3CVE%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/tracing/instrument.rs.html#334">source</a><a href="#impl-WithSubscriber-for-MetadataKey%3CVE%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="../../tracing/instrument/trait.WithSubscriber.html" title="trait tracing::instrument::WithSubscriber">WithSubscriber</a> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.with_subscriber" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing/instrument.rs.html#169-171">source</a><a href="#method.with_subscriber" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_subscriber" class="fnname">with_subscriber</a><S>(self, subscriber: S) -> <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span><span class="where fmt-newline">where<br> S: Into<<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>>,</span></h4></section></summary><div class='docblock'>Attaches the provided <a href="../../tracing_core/subscriber/trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a |
| <a href="../../tracing/instrument/struct.WithDispatch.html" title="WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.with_current_subscriber" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing/instrument.rs.html#221">source</a><a href="#method.with_current_subscriber" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber" class="fnname">with_current_subscriber</a>(self) -> <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Attaches the current <a href="../../tracing/dispatcher/index.html#setting-the-default-subscriber">default</a> <a href="../../tracing_core/subscriber/trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a |
| <a href="../../tracing/instrument/struct.WithDispatch.html" title="WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-WithSubscriber-for-MetadataKey%3CVE%3E-1" class="impl has-srclink"><a class="srclink rightside" href="../../src/tracing_futures/lib.rs.html#432">source</a><a href="#impl-WithSubscriber-for-MetadataKey%3CVE%3E-1" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="../../tracing_futures/trait.WithSubscriber.html" title="trait tracing_futures::WithSubscriber">WithSubscriber</a> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.with_subscriber-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing_futures/lib.rs.html#213-215">source</a><a href="#method.with_subscriber-1" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing_futures/trait.WithSubscriber.html#method.with_subscriber" class="fnname">with_subscriber</a><S>(self, subscriber: S) -> <a class="struct" href="../../tracing_futures/struct.WithDispatch.html" title="struct tracing_futures::WithDispatch">WithDispatch</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing_futures/struct.WithDispatch.html" title="struct tracing_futures::WithDispatch">WithDispatch</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing_futures/struct.WithDispatch.html" title="struct tracing_futures::WithDispatch">WithDispatch</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span><span class="where fmt-newline">where<br> S: Into<<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>>,</span></h4></section></summary><div class='docblock'>Attaches the provided <a href="https://docs.rs/tracing/latest/tracing/subscriber/trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a |
| <code>WithDispatch</code> wrapper. <a href="../../tracing_futures/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.with_current_subscriber-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/tracing_futures/lib.rs.html#237">source</a><a href="#method.with_current_subscriber-1" class="anchor"></a><h4 class="code-header">fn <a href="../../tracing_futures/trait.WithSubscriber.html#method.with_current_subscriber" class="fnname">with_current_subscriber</a>(self) -> <a class="struct" href="../../tracing_futures/struct.WithDispatch.html" title="struct tracing_futures::WithDispatch">WithDispatch</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="../../tracing_futures/struct.WithDispatch.html" title="struct tracing_futures::WithDispatch">WithDispatch</a><T></span><code class="content"><span class="where fmt-newline">impl<T> Future for <a class="struct" href="../../tracing_futures/struct.WithDispatch.html" title="struct tracing_futures::WithDispatch">WithDispatch</a><T><span class="where fmt-newline">where<br> T: Future,</span></span><span class="where fmt-newline"> type <a class="associatedtype">Output</a> = <T as Future>::Output;</span></code></span></span></span></span></h4></section></summary><div class='docblock'>Attaches the current <a href="https://docs.rs/tracing/latest/tracing/dispatcher/index.html#setting-the-default-subscriber">default</a> <a href="https://docs.rs/tracing/latest/tracing/subscriber/trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a |
| <code>WithDispatch</code> wrapper. <a href="../../tracing_futures/trait.WithSubscriber.html#method.with_current_subscriber">Read more</a></div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="tonic" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
