Initial docs commit
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Uttarayan Mondal
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<!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="Metadata describing a span or event."><meta name="keywords" content="rust, rustlang, rust-lang, Metadata"><title>tracing_core::metadata::Metadata - 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="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><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='../../tracing_core/index.html'><div class='logo-container'><img src='https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png' alt='logo'></div></a><p class="location">Struct Metadata</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.callsite">callsite</a><a href="#method.fields">fields</a><a href="#method.file">file</a><a href="#method.is_event">is_event</a><a href="#method.is_span">is_span</a><a href="#method.level">level</a><a href="#method.line">line</a><a href="#method.module_path">module_path</a><a href="#method.name">name</a><a href="#method.new">new</a><a href="#method.target">target</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-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-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">tracing_core</a>::<wbr><a href="index.html">metadata</a></p><div id="sidebar-vars" data-name="Metadata" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></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><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">tracing_core</a>::<wbr><a href="index.html">metadata</a>::<wbr><a class="struct" href="">Metadata</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/tracing_core/metadata.rs.html#61-90" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct Metadata<'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Metadata describing a <a href="../span/index.html">span</a> or <a href="../event/index.html">event</a>.</p>
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<p>All spans and events have the following metadata:</p>
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<ul>
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<li>A <a href="#method.name">name</a>, represented as a static string.</li>
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<li>A <a href="#method.target">target</a>, a string that categorizes part of the system where the span
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or event occurred. The <code>tracing</code> macros default to using the module
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path where the span or event originated as the target, but it may be
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overridden.</li>
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<li>A <a href="#method.level">verbosity level</a>.</li>
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<li>The names of the <a href="#method.fields">fields</a> defined by the span or event.</li>
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<li>Whether the metadata corresponds to a span or event.</li>
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</ul>
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<p>In addition, the following optional metadata describing the source code
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location where the span or event originated <em>may</em> be provided:</p>
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<ul>
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<li>The <a href="#method.file">file name</a></li>
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<li>The <a href="#method.line">line number</a></li>
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<li>The <a href="#method.module">module path</a></li>
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</ul>
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<p>Metadata is used by <a href="../subscriber/trait.Subscriber.html"><code>Subscriber</code></a>s when filtering spans and events, and it
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may also be used as part of their data payload.</p>
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<p>When created by the <code>event!</code> or <code>span!</code> macro, the metadata describing a
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particular event or span is constructed statically and exists as a single
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static instance. Thus, the overhead of creating the metadata is
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<em>significantly</em> lower than that of creating the actual span. Therefore,
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filtering is based on metadata, rather than on the constructed span.</p>
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<div class="information">
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<div class="tooltip ignore" style="">ⓘ<span class="tooltiptext">Note</span></div>
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</div>
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<div class="example-wrap" style="display:inline-block">
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<pre class="ignore" style="white-space:normal;font:inherit;">
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<strong>Note</strong>: Although instances of <code>Metadata</code> cannot
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be compared directly, they provide a method <a href="struct.Metadata.html#method.id">
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<code>id</code></a>, returning an opaque <a href="../callsite/struct.Identifier.html">
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callsite identifier</a> which uniquely identifies the callsite where the metadata
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originated. This can be used to determine if two <code>Metadata</code> correspond to
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the same callsite.
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</pre></div>
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</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl<'a> <a class="struct" href="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/tracing_core/metadata.rs.html#121-204" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.new" class="method"><code>pub const fn <a href="#method.new" class="fnname">new</a>(<br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> target: &'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> level: <a class="struct" href="../../tracing_core/struct.Level.html" title="struct tracing_core::Level">Level</a>, <br> file: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>>, <br> line: <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.u32.html">u32</a>>, <br> module_path: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>>, <br> fields: <a class="struct" href="../../tracing_core/field/struct.FieldSet.html" title="struct tracing_core::field::FieldSet">FieldSet</a>, <br> kind: <a class="struct" href="../../tracing_core/metadata/struct.Kind.html" title="struct tracing_core::metadata::Kind">Kind</a><br>) -> Self</code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#124-144" title="goto source code">[src]</a></h4><div class="docblock"><p>Construct new metadata for a span or event, with a name, target, level, field
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names, and optional source code location.</p>
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</div><h4 id="method.fields" class="method"><code>pub fn <a href="#method.fields" class="fnname">fields</a>(&self) -> &<a class="struct" href="../../tracing_core/field/struct.FieldSet.html" title="struct tracing_core::field::FieldSet">FieldSet</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#147-149" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the names of the fields on the described span or event.</p>
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</div><h4 id="method.level" class="method"><code>pub fn <a href="#method.level" class="fnname">level</a>(&self) -> &<a class="struct" href="../../tracing_core/struct.Level.html" title="struct tracing_core::Level">Level</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#152-154" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the level of verbosity of the described span or event.</p>
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</div><h4 id="method.name" class="method"><code>pub fn <a href="#method.name" class="fnname">name</a>(&self) -> &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#157-159" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the name of the span.</p>
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</div><h4 id="method.target" class="method"><code>pub fn <a href="#method.target" class="fnname">target</a>(&self) -> &'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#166-168" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns a string describing the part of the system where the span or
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event that this metadata describes occurred.</p>
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<p>Typically, this is the module path, but alternate targets may be set
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when spans or events are constructed.</p>
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</div><h4 id="method.module_path" class="method"><code>pub fn <a href="#method.module_path" class="fnname">module_path</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#172-174" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the path to the Rust module where the span occurred, or
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<code>None</code> if the module path is unknown.</p>
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</div><h4 id="method.file" class="method"><code>pub fn <a href="#method.file" class="fnname">file</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#178-180" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the name of the source code file where the span
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occurred, or <code>None</code> if the file is unknown</p>
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</div><h4 id="method.line" class="method"><code>pub fn <a href="#method.line" class="fnname">line</a>(&self) -> <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.u32.html">u32</a>></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#184-186" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the line number in the source code file where the span
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occurred, or <code>None</code> if the line number is unknown.</p>
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</div><h4 id="method.callsite" class="method"><code>pub fn <a href="#method.callsite" class="fnname">callsite</a>(&self) -> <a class="struct" href="../../tracing_core/callsite/struct.Identifier.html" title="struct tracing_core::callsite::Identifier">Identifier</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#191-193" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns an opaque <code>Identifier</code> that uniquely identifies the callsite
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this <code>Metadata</code> originated from.</p>
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</div><h4 id="method.is_event" class="method"><code>pub fn <a href="#method.is_event" class="fnname">is_event</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#196-198" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns true if the callsite kind is <code>Event</code>.</p>
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</div><h4 id="method.is_span" class="method"><code>pub fn <a href="#method.is_span" class="fnname">is_span</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/tracing_core/metadata.rs.html#201-203" title="goto source code">[src]</a></h4><div class="docblock"><p>Return true if the callsite kind is <code>Span</code>.</p>
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</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Debug" class="impl"><code class="in-band">impl<'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="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/tracing_core/metadata.rs.html#206-237" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>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/tracing_core/metadata.rs.html#207-236" 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>
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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<'a> !<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="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></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<'a> <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="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></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<'a> <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="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></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<'a> <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="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></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<'a> !<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="../../tracing_core/struct.Metadata.html" title="struct tracing_core::Metadata">Metadata</a><'a></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#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub 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#132" 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#207-211" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub 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#208" 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>
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</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#214-218" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub 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#215" 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>
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</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#545-549" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub 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#546" 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#534-541" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub 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#538" 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-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#582-591" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>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" class="method hidden"><code>pub 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#588" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</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#568-577" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>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>pub 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#574" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
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