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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="`Event`s represent single points in time where something occurred during the execution of a program."><meta name="keywords" content="rust, rustlang, rust-lang, Event"><title>Event in tracing::event - 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" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><script defer src="../../main.js"></script>
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<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="sidebar"><div class="sidebar-menu" role="button">☰</div><a class="sidebar-logo" href="../../tracing/index.html"><div class="logo-container"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" alt="logo"></div>
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</a><h2 class="location">Struct Event</h2><div class="sidebar-elems"><div class="block items"><h3 class="sidebar-title"><a href="#implementations">Methods</a></h3><div class="sidebar-links"><a href="#method.child_of">child_of</a><a href="#method.dispatch">dispatch</a><a href="#method.fields">fields</a><a href="#method.is_contextual">is_contextual</a><a href="#method.is_root">is_root</a><a href="#method.metadata">metadata</a><a href="#method.new">new</a><a href="#method.new_child_of">new_child_of</a><a href="#method.parent">parent</a><a href="#method.record">record</a></div><h3 class="sidebar-title"><a href="#trait-implementations">Trait Implementations</a></h3><div class="sidebar-links"><a href="#impl-Debug">Debug</a></div><h3 class="sidebar-title"><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><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><h3 class="sidebar-title"><a href="#blanket-implementations">Blanket Implementations</a></h3><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-Instrument">Instrument</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><a href="#impl-WithSubscriber">WithSubscriber</a></div></div><h2 class="location">Other items in<br><a href="../index.html">tracing</a>::<wbr><a href="index.html">event</a></h2><div id="sidebar-vars" data-name="Event" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../tracing/index.html"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><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" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">tracing</a>::<wbr><a href="index.html">event</a>::<wbr><a class="struct" href="#">Event</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></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/event.rs.html#23-27" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust struct"><code>pub struct Event<'a> { /* fields omitted */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p><code>Event</code>s represent single points in time where something occurred during the
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execution of a program.</p>
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<p>An <code>Event</code> can be compared to a log record in unstructured logging, but with
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two key differences:</p>
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<ul>
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<li><code>Event</code>s exist <em>within the context of a <a href="../span">span</a></em>. Unlike log lines, they
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may be located within the trace tree, allowing visibility into the
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<em>temporal</em> context in which the event occurred, as well as the source
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code location.</li>
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<li>Like spans, <code>Event</code>s have structured key-value data known as <em><a href="../field">fields</a></em>,
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which may include textual message. In general, a majority of the data
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associated with an event should be in the event’s fields rather than in
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the textual message, as the fields are more structured.</li>
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</ul>
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</div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#29-128" title="goto source code">[src]</a></div><a href="#impl" class="anchor"></a><h3 class="code-header in-band">impl<'a> <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.dispatch" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#32" title="goto source code">[src]</a></div><a href="#method.dispatch" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.dispatch" class="fnname">dispatch</a>(metadata: &'static <a class="struct" href="../struct.Metadata.html" title="struct tracing::Metadata">Metadata</a><'static>, fields: &'a <a class="struct" href="../field/struct.ValueSet.html" title="struct tracing::field::ValueSet">ValueSet</a><'_>)</h4></div></summary><div class="docblock"><p>Constructs a new <code>Event</code> with the specified metadata and set of values,
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and observes it with the current subscriber.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.new" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#42" title="goto source code">[src]</a></div><a href="#method.new" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.new" class="fnname">new</a>(<br> metadata: &'static <a class="struct" href="../struct.Metadata.html" title="struct tracing::Metadata">Metadata</a><'static>, <br> fields: &'a <a class="struct" href="../field/struct.ValueSet.html" title="struct tracing::field::ValueSet">ValueSet</a><'a><br>) -> <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h4></div></summary><div class="docblock"><p>Returns a new <code>Event</code> in the current span, with the specified metadata
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and set of values.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.new_child_of" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#53-57" title="goto source code">[src]</a></div><a href="#method.new_child_of" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.new_child_of" class="fnname">new_child_of</a>(<br> parent: impl <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../span/struct.Id.html" title="struct tracing::span::Id">Id</a>>>, <br> metadata: &'static <a class="struct" href="../struct.Metadata.html" title="struct tracing::Metadata">Metadata</a><'static>, <br> fields: &'a <a class="struct" href="../field/struct.ValueSet.html" title="struct tracing::field::ValueSet">ValueSet</a><'a><br>) -> <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h4></div></summary><div class="docblock"><p>Returns a new <code>Event</code> as a child of the specified span, with the
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provided metadata and set of values.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.child_of" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#71-75" title="goto source code">[src]</a></div><a href="#method.child_of" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.child_of" class="fnname">child_of</a>(<br> parent: impl <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../span/struct.Id.html" title="struct tracing::span::Id">Id</a>>>, <br> metadata: &'static <a class="struct" href="../struct.Metadata.html" title="struct tracing::Metadata">Metadata</a><'static>, <br> fields: &'a <a class="struct" href="../field/struct.ValueSet.html" title="struct tracing::field::ValueSet">ValueSet</a><'_><br>)</h4></div></summary><div class="docblock"><p>Constructs a new <code>Event</code> with the specified metadata and set of values,
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and observes it with the current subscriber and an explicit parent.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.record" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#86" title="goto source code">[src]</a></div><a href="#method.record" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.record" class="fnname">record</a>(&self, visitor: &mut dyn <a class="trait" href="../field/trait.Visit.html" title="trait tracing::field::Visit">Visit</a>)</h4></div></summary><div class="docblock"><p>Visits all the fields on this <code>Event</code> with the specified <a href="../field/trait.Visit.html">visitor</a>.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.fields" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#91" title="goto source code">[src]</a></div><a href="#method.fields" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.fields" class="fnname">fields</a>(&self) -> <a class="struct" href="../field/struct.Iter.html" title="struct tracing::field::Iter">Iter</a><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><div class="notable">Notable traits for <a class="struct" href="../field/struct.Iter.html" title="struct tracing::field::Iter">Iter</a></div><code class="content"><span class="where fmt-newline">impl <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../field/struct.Iter.html" title="struct tracing::field::Iter">Iter</a></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/1.59.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="associatedtype">Item</a> = <a class="struct" href="../field/struct.Field.html" title="struct tracing::field::Field">Field</a>;</span></code></span></div></span></span></h4></div></summary><div class="docblock"><p>Returns an iterator over the set of values on this <code>Event</code>.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.metadata" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#98" title="goto source code">[src]</a></div><a href="#method.metadata" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.metadata" class="fnname">metadata</a>(&self) -> &'static <a class="struct" href="../struct.Metadata.html" title="struct tracing::Metadata">Metadata</a><'static></h4></div></summary><div class="docblock"><p>Returns <a href="../struct.Metadata.html">metadata</a> describing this <code>Event</code>.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.is_root" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#103" title="goto source code">[src]</a></div><a href="#method.is_root" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.is_root" class="fnname">is_root</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.bool.html">bool</a></h4></div></summary><div class="docblock"><p>Returns true if the new event should be a root.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.is_contextual" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#114" title="goto source code">[src]</a></div><a href="#method.is_contextual" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.is_contextual" class="fnname">is_contextual</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.bool.html">bool</a></h4></div></summary><div class="docblock"><p>Returns true if the new event’s parent should be determined based on the
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current context.</p>
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<p>If this is true and the current thread is currently inside a span, then
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that span should be the new event’s parent. Otherwise, if the current
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thread is <em>not</em> inside a span, then the new event will be the root of its
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own trace tree.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.parent" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#122" title="goto source code">[src]</a></div><a href="#method.parent" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.parent" class="fnname">parent</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="../span/struct.Id.html" title="struct tracing::span::Id">Id</a>></h4></div></summary><div class="docblock"><p>Returns the new event’s explicitly-specified parent, if there is one.</p>
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<p>Otherwise (if the new event is a root or is a child of the current span),
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returns <code>None</code>.</p>
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</div></details></div></details><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><div id="impl-Debug" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#22" title="goto source code">[src]</a></div><a href="#impl-Debug" class="anchor"></a><h3 class="code-header in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.fmt" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing_core/event.rs.html#22" title="goto source code">[src]</a></div><a href="#method.fmt" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.59.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.unit.html">()</a>, <a class="struct" href="https://doc.rust-lang.org/1.59.0/core/fmt/struct.Error.html" title="struct core::fmt::Error">Error</a>></h4></div></summary><div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.59.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></details></div></details></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"><div id="impl-RefUnwindSafe" class="impl has-srclink"><div class="rightside"></div><a href="#impl-RefUnwindSafe" class="anchor"></a><h3 class="code-header in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/1.59.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></div><div id="impl-Send" class="impl has-srclink"><div class="rightside"></div><a href="#impl-Send" class="anchor"></a><h3 class="code-header in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/1.59.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></div><div id="impl-Sync" class="impl has-srclink"><div class="rightside"></div><a href="#impl-Sync" class="anchor"></a><h3 class="code-header in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/1.59.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></div><div id="impl-Unpin" class="impl has-srclink"><div class="rightside"></div><a href="#impl-Unpin" class="anchor"></a><h3 class="code-header in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></div><div id="impl-UnwindSafe" class="impl has-srclink"><div class="rightside"></div><a href="#impl-UnwindSafe" class="anchor"></a><h3 class="code-header in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/1.59.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Event.html" title="struct tracing::event::Event">Event</a><'a></h3></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"><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-Any" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/any.rs.html#132-136" title="goto source code">[src]</a></div><a href="#impl-Any" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.59.0/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/1.59.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.type_id" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/any.rs.html#133" title="goto source code">[src]</a></div><a href="#method.type_id" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.59.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></div></summary><div class='docblock'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.59.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-Borrow%3CT%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/borrow.rs.html#209-214" title="goto source code">[src]</a></div><a href="#impl-Borrow%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.59.0/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/1.59.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.borrow" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/borrow.rs.html#211" title="goto source code">[src]</a></div><a href="#method.borrow" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.reference.html">&</a>T</h4></div></summary><div class='docblock'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.59.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-BorrowMut%3CT%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/borrow.rs.html#218-222" title="goto source code">[src]</a></div><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.59.0/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/1.59.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.borrow_mut" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/borrow.rs.html#219" title="goto source code">[src]</a></div><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.reference.html">&mut </a>T</h4></div></summary><div class='docblock'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.59.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-From%3CT%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#550-554" title="goto source code">[src]</a></div><a href="#impl-From%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.from" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#551" title="goto source code">[src]</a></div><a href="#method.from" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</h4></div></summary><div class='docblock'><p>Performs the conversion.</p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-Instrument" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing/instrument.rs.html#276" title="goto source code">[src]</a></div><a href="#impl-Instrument" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="../trait.Instrument.html" title="trait tracing::Instrument">Instrument</a> for T</h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.instrument" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing/instrument.rs.html#82-84" title="goto source code">[src]</a></div><a href="#method.instrument" class="anchor"></a><h4 class="code-header">fn <a href="../trait.Instrument.html#method.instrument" class="fnname">instrument</a>(self, span: <a class="struct" href="../struct.Span.html" title="struct tracing::Span">Span</a>) -> <a class="struct" href="../instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><div class="notable">Notable traits for <a class="struct" href="../instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T></div><code class="content"><span class="where fmt-newline">impl<T: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a>> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a> for <a class="struct" href="../instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = T::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" title="type core::future::future::Future::Output">Output</a>;</span></code></span></div></span></span></h4></div></summary><div class='docblock'><p>Instruments this type with the provided <a href="../struct.Span.html" title="Span"><code>Span</code></a>, returning an
|
||
<code>Instrumented</code> wrapper. <a href="../trait.Instrument.html#method.instrument">Read more</a></p>
|
||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.in_current_span" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing/instrument.rs.html#121-123" title="goto source code">[src]</a></div><a href="#method.in_current_span" class="anchor"></a><h4 class="code-header">fn <a href="../trait.Instrument.html#method.in_current_span" class="fnname">in_current_span</a>(self) -> <a class="struct" href="../instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><div class="notable">Notable traits for <a class="struct" href="../instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T></div><code class="content"><span class="where fmt-newline">impl<T: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a>> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a> for <a class="struct" href="../instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><T></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = T::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" title="type core::future::future::Future::Output">Output</a>;</span></code></span></div></span></span></h4></div></summary><div class='docblock'><p>Instruments this type with the <a href="../struct.Span.html#method.current">current</a> <a href="../struct.Span.html"><code>Span</code></a>, returning an
|
||
<code>Instrumented</code> wrapper. <a href="../trait.Instrument.html#method.in_current_span">Read more</a></p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-Into%3CU%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#538-545" title="goto source code">[src]</a></div><a href="#impl-Into%3CU%3E" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.59.0/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/1.59.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.into" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#542" title="goto source code">[src]</a></div><a href="#method.into" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</h4></div></summary><div class='docblock'><p>Performs the conversion.</p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-TryFrom%3CU%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#588-597" title="goto source code">[src]</a></div><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.59.0/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/1.59.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><div id="associatedtype.Error-1" class="type trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></div></summary><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.try_from" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#594" title="goto source code">[src]</a></div><a href="#method.try_from" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></div></summary><div class='docblock'><p>Performs the conversion.</p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-TryInto%3CU%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#574-583" title="goto source code">[src]</a></div><a href="#impl-TryInto%3CU%3E" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.59.0/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/1.59.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></h3></div></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><div id="associatedtype.Error" class="type trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></div></summary><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.try_into" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.59.0/src/core/convert/mod.rs.html#580" title="goto source code">[src]</a></div><a href="#method.try_into" class="anchor"></a><h4 class="code-header">pub fn <a href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></div></summary><div class='docblock'><p>Performs the conversion.</p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><div id="impl-WithSubscriber" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing/instrument.rs.html#334" title="goto source code">[src]</a></div><a href="#impl-WithSubscriber" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="../instrument/trait.WithSubscriber.html" title="trait tracing::instrument::WithSubscriber">WithSubscriber</a> for T</h3></div></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><div id="method.with_subscriber" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing/instrument.rs.html#169-177" title="goto source code">[src]</a></div><a href="#method.with_subscriber" class="anchor"></a><h4 class="code-header">fn <a href="../instrument/trait.WithSubscriber.html#method.with_subscriber" class="fnname">with_subscriber</a><S>(self, subscriber: S) -> <a class="struct" href="../instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><div class="notable">Notable traits for <a class="struct" href="../instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T></div><code class="content"><span class="where fmt-newline">impl<T: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a>> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a> for <a class="struct" href="../instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = T::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" title="type core::future::future::Future::Output">Output</a>;</span></code></span></div></span></span> <span class="where fmt-newline">where<br> S: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../struct.Dispatch.html" title="struct tracing::Dispatch">Dispatch</a>>, </span></h4></div></summary><div class='docblock'><p>Attaches the provided <a href="../trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a
|
||
<a href="../instrument/struct.WithDispatch.html" title="WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></p>
|
||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><div id="method.with_current_subscriber" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/tracing/instrument.rs.html#221-226" title="goto source code">[src]</a></div><a href="#method.with_current_subscriber" class="anchor"></a><h4 class="code-header">fn <a href="../instrument/trait.WithSubscriber.html#method.with_current_subscriber" class="fnname">with_current_subscriber</a>(self) -> <a class="struct" href="../instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><div class="notable">Notable traits for <a class="struct" href="../instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T></div><code class="content"><span class="where fmt-newline">impl<T: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a>> <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html" title="trait core::future::future::Future">Future</a> for <a class="struct" href="../instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><T></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" class="associatedtype">Output</a> = T::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/future/future/trait.Future.html#associatedtype.Output" title="type core::future::future::Future::Output">Output</a>;</span></code></span></div></span></span></h4></div></summary><div class='docblock'><p>Attaches the current <a href="../dispatcher/index.html#setting-the-default-subscriber">default</a> <a href="../trait.Subscriber.html"><code>Subscriber</code></a> to this type, returning a
|
||
<a href="../instrument/struct.WithDispatch.html" title="WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../instrument/trait.WithSubscriber.html#method.with_current_subscriber">Read more</a></p>
|
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</div></details></div></details></div></section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="tracing" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.59.0 (9d1b2106e 2022-02-23)" ></div>
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