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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="A shared, reusable store for spans."><title>Registry in tracing_subscriber::registry - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="tracing_subscriber" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.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="logo-container" href="../../tracing_subscriber/index.html"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../../tracing_subscriber/index.html"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png" alt="logo"></a><h2><a href="../../tracing_subscriber/index.html">tracing_subscriber</a><span class="version">0.3.18</span></h2></div><h2 class="location"><a href="#">Registry</a></h2><div class="sidebar-elems"><section><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Debug-for-Registry">Debug</a></li><li><a href="#impl-Default-for-Registry">Default</a></li><li><a href="#impl-LookupSpan%3C'a%3E-for-Registry">LookupSpan<'a></a></li><li><a href="#impl-Subscriber-for-Registry">Subscriber</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-UnwindSafe-for-Registry">!UnwindSafe</a></li><li><a href="#impl-RefUnwindSafe-for-Registry">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Registry">Send</a></li><li><a href="#impl-Sync-for-Registry">Sync</a></li><li><a href="#impl-Unpin-for-Registry">Unpin</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-T">From<T></a></li><li><a href="#impl-Instrument-for-T">Instrument</a></li><li><a href="#impl-Into%3CU%3E-for-T">Into<U></a></li><li><a href="#impl-SubscriberExt-for-S">SubscriberExt</a></li><li><a href="#impl-SubscriberInitExt-for-T">SubscriberInitExt</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto<U></a></li><li><a href="#impl-WithSubscriber-for-T">WithSubscriber</a></li></ul></section><h2><a href="index.html">In tracing_subscriber::registry</a></h2></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../tracing_subscriber/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="../index.html">tracing_subscriber</a>::<wbr><a href="index.html">registry</a>::<wbr><a class="struct" href="#">Registry</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/tracing_subscriber/registry/sharded.rs.html#92-96">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Registry { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A shared, reusable store for spans.</p>
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<p>A <code>Registry</code> is a <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> around which multiple <a href="../layer/trait.Layer.html" title="trait tracing_subscriber::layer::Layer"><code>Layer</code></a>s
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implementing various behaviors may be <a href="../layer/trait.Layer.html#composing-layers" title="trait tracing_subscriber::layer::Layer">added</a>. Unlike other types
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implementing <code>Subscriber</code>, <code>Registry</code> does not actually record traces itself:
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instead, it collects and stores span data that is exposed to any <a href="../layer/trait.Layer.html" title="trait tracing_subscriber::layer::Layer"><code>Layer</code></a>s
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wrapping it through implementations of the <a href="trait.LookupSpan.html" title="trait tracing_subscriber::registry::LookupSpan"><code>LookupSpan</code></a> trait.
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The <code>Registry</code> is responsible for storing span metadata, recording
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relationships between spans, and tracking which spans are active and which
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are closed. In addition, it provides a mechanism for <a href="../layer/trait.Layer.html" title="trait tracing_subscriber::layer::Layer"><code>Layer</code></a>s to store
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user-defined per-span data, called <a href="struct.Extensions.html" title="struct tracing_subscriber::registry::Extensions">extensions</a>, in the registry. This
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allows <a href="../layer/trait.Layer.html" title="trait tracing_subscriber::layer::Layer"><code>Layer</code></a>-specific data to benefit from the <code>Registry</code>’s
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high-performance concurrent storage.</p>
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<p>This registry is implemented using a <a href="../../sharded_slab/index.html" title="mod sharded_slab">lock-free sharded slab</a>, and is
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highly optimized for concurrent access.</p>
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<h2 id="span-id-generation"><a href="#span-id-generation">Span ID Generation</a></h2>
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<p>Span IDs are not globally unique, but the registry ensures that
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no two currently active spans have the same ID within a process.</p>
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<p>One of the primary responsibilities of the registry is to generate <a href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">span
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IDs</a>. Therefore, it’s important for other code that interacts with the
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registry, such as <a href="../layer/trait.Layer.html" title="trait tracing_subscriber::layer::Layer"><code>Layer</code></a>s, to understand the guarantees of the
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span IDs that are generated.</p>
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<p>The registry’s span IDs are guaranteed to be unique <strong>at a given point
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in time</strong>. This means that an active span will never be assigned the
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same ID as another <strong>currently active</strong> span. However, the registry
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<strong>will</strong> eventually reuse the IDs of <a href="https://docs.rs/tracing/latest/tracing/span/index.html#closing-spans">closed</a> spans, although an ID
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will never be reassigned immediately after a span has closed.</p>
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<p>Spans are not <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.try_close" title="method tracing_core::subscriber::Subscriber::try_close">considered closed</a> by the <code>Registry</code> until <em>every</em>
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<a href="https://docs.rs/tracing/latest/tracing/span/struct.Span.html"><code>Span</code></a> reference with that ID has been dropped.</p>
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<p>Thus: span IDs generated by the registry should be considered unique
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only at a given point in time, and only relative to other spans
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generated by the same process. Two spans with the same ID will not exist
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in the same process concurrently. However, if historical span data is
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being stored, the same ID may occur for multiple spans times in that
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data. If spans must be uniquely identified in historical data, the user
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code storing this data must assign its own unique identifiers to those
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spans. A counter is generally sufficient for this.</p>
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<p>Similarly, span IDs generated by the registry are not unique outside of
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a given process. Distributed tracing systems may require identifiers
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that are unique across multiple processes on multiple machines (for
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example, <a href="https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/api.md#spancontext">OpenTelemetry’s <code>SpanId</code>s and <code>TraceId</code>s</a>). <code>tracing</code> span
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IDs generated by the registry should <strong>not</strong> be used for this purpose.
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Instead, code which integrates with a distributed tracing system should
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generate and propagate its own IDs according to the rules specified by
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the distributed tracing system. These IDs can be associated with
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<code>tracing</code> spans using <a href="../../tracing_core/field/index.html" title="mod tracing_core::field">fields</a> and/or <a href="trait.SpanData.html#tymethod.extensions_mut" title="method tracing_subscriber::registry::SpanData::extensions_mut">stored span data</a>.</p>
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</div></details><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-Registry" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#91">source</a><a href="#impl-Debug-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#91">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.76.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Default-for-Registry" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#135-143">source</a><a href="#impl-Default-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.default" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#136-142">source</a><a href="#method.default" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html#tymethod.default" class="fn">default</a>() -> Self</h4></section></summary><div class='docblock'>Returns the “default value” for a type. <a href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html#tymethod.default">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-LookupSpan%3C'a%3E-for-Registry" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#369-382">source</a><a href="#impl-LookupSpan%3C'a%3E-for-Registry" class="anchor">§</a><h3 class="code-header">impl<'a> <a class="trait" href="trait.LookupSpan.html" title="trait tracing_subscriber::registry::LookupSpan">LookupSpan</a><'a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Data" class="associatedtype trait-impl"><a href="#associatedtype.Data" class="anchor">§</a><h4 class="code-header">type <a href="trait.LookupSpan.html#associatedtype.Data" class="associatedtype">Data</a> = <a class="struct" href="struct.Data.html" title="struct tracing_subscriber::registry::Data">Data</a><'a></h4></section></summary><div class='docblock'>The type of span data stored in this registry.</div></details><details class="toggle method-toggle" open><summary><section id="method.span_data" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#372-375">source</a><a href="#method.span_data" class="anchor">§</a><h4 class="code-header">fn <a href="trait.LookupSpan.html#tymethod.span_data" class="fn">span_data</a>(&'a self, id: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><Self::<a class="associatedtype" href="trait.LookupSpan.html#associatedtype.Data" title="type tracing_subscriber::registry::LookupSpan::Data">Data</a>></h4></section></summary><div class='docblock'>Returns the <a href="trait.SpanData.html" title="trait tracing_subscriber::registry::SpanData"><code>SpanData</code></a> for a given <code>Id</code>, if it exists.</div></details><details class="toggle method-toggle" open><summary><section id="method.register_filter" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#377-381">source</a><a href="#method.register_filter" class="anchor">§</a><h4 class="code-header">fn <a href="trait.LookupSpan.html#method.register_filter" class="fn">register_filter</a>(&mut self) -> <a class="struct" href="../filter/struct.FilterId.html" title="struct tracing_subscriber::filter::FilterId">FilterId</a></h4></section></summary><div class='docblock'>Registers a <a href="../layer/trait.Filter.html" title="trait tracing_subscriber::layer::Filter"><code>Filter</code></a> for <a href="../layer/trait.Layer.html#per-layer-filtering" title="trait tracing_subscriber::layer::Layer">per-layer filtering</a> with this
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<a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a>. <a href="trait.LookupSpan.html#method.register_filter">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/mod.rs.html#118-129">source</a><a href="#method.span" class="anchor">§</a><h4 class="code-header">fn <a href="trait.LookupSpan.html#method.span" class="fn">span</a>(&'a self, id: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.SpanRef.html" title="struct tracing_subscriber::registry::SpanRef">SpanRef</a><'_, Self>><div class="where">where
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Self: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Returns a <a href="struct.SpanRef.html" title="struct tracing_subscriber::registry::SpanRef"><code>SpanRef</code></a> for the span with the given <code>Id</code>, if it exists. <a href="trait.LookupSpan.html#method.span">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Subscriber-for-Registry" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#220-367">source</a><a href="#impl-Subscriber-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.record" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#274">source</a><a href="#method.record" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record" class="fn">record</a>(&self, _: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, _: &<a class="struct" href="../../tracing_core/span/struct.Record.html" title="struct tracing_core::span::Record">Record</a><'_>)</h4></section></summary><div class="docblock"><p>This is intentionally not implemented, as recording fields
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on a span is the responsibility of layers atop of this registry.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.event" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#287">source</a><a href="#method.event" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.event" class="fn">event</a>(&self, _: &<a class="struct" href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event">Event</a><'_>)</h4></section></summary><div class="docblock"><p>This is intentionally not implemented, as recording events
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is the responsibility of layers atop of this registry.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.try_close" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#346-366">source</a><a href="#method.try_close" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.try_close" class="fn">try_close</a>(&self, id: <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Decrements the reference count of the span with the given <code>id</code>, and
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removes the span if it is zero.</p>
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<p>The allocated span slot will be reused when a new span is created.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.register_callsite" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#221-227">source</a><a href="#method.register_callsite" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.register_callsite" class="fn">register_callsite</a>(&self, _: &'static <a class="struct" href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">Metadata</a><'static>) -> <a class="struct" href="../../tracing_core/subscriber/struct.Interest.html" title="struct tracing_core::subscriber::Interest">Interest</a></h4></section></summary><div class='docblock'>Registers a new <a href="../../tracing_core/callsite/index.html" title="mod tracing_core::callsite">callsite</a> with this subscriber, returning whether or not
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the subscriber is interested in being notified about the callsite. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.register_callsite">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.enabled" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#229-234">source</a><a href="#method.enabled" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enabled" class="fn">enabled</a>(&self, _: &<a class="struct" href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">Metadata</a><'_>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Returns true if a span or event with the specified <a href="../../tracing_core/metadata/struct.Metadata.html" title="struct tracing_core::metadata::Metadata">metadata</a> would be
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recorded. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enabled">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.new_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#237-269">source</a><a href="#method.new_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.new_span" class="fn">new_span</a>(&self, attrs: &<a class="struct" href="../../tracing_core/span/struct.Attributes.html" title="struct tracing_core::span::Attributes">Attributes</a><'_>) -> <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a></h4></section></summary><div class='docblock'>Visit the construction of a new span, returning a new <a href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">span ID</a> for the
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span being constructed. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.new_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.record_follows_from" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#276">source</a><a href="#method.record_follows_from" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record_follows_from" class="fn">record_follows_from</a>(&self, _span: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>, _follows: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><div class='docblock'>Adds an indication that <code>span</code> follows from the span with the id
|
||
<code>follows</code>. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.record_follows_from">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.event_enabled" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#278-283">source</a><a href="#method.event_enabled" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.event_enabled" class="fn">event_enabled</a>(&self, _event: &<a class="struct" href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event">Event</a><'_>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Determine if an <a href="../../tracing_core/event/struct.Event.html" title="struct tracing_core::event::Event"><code>Event</code></a> should be recorded. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.event_enabled">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.enter" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#289-298">source</a><a href="#method.enter" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enter" class="fn">enter</a>(&self, id: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><div class='docblock'>Records that a span has been entered. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.enter">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.exit" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#300-306">source</a><a href="#method.exit" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.exit" class="fn">exit</a>(&self, id: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><div class='docblock'>Records that a span has been exited. <a href="../../tracing_core/subscriber/trait.Subscriber.html#tymethod.exit">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#308-328">source</a><a href="#method.clone_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.clone_span" class="fn">clone_span</a>(&self, id: &<a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>) -> <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a></h4></section></summary><div class='docblock'>Notifies the subscriber that a <a href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">span ID</a> has been cloned. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.clone_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.current_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/registry/sharded.rs.html#330-340">source</a><a href="#method.current_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.current_span" class="fn">current_span</a>(&self) -> <a class="struct" href="../../tracing_core/span/struct.Current.html" title="struct tracing_core::span::Current">Current</a></h4></section></summary><div class='docblock'>Returns a type representing this subscriber’s view of the current span. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.current_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.on_register_dispatch" class="method trait-impl"><a class="src rightside" href="../../src/tracing_core/subscriber.rs.html#103">source</a><a href="#method.on_register_dispatch" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.on_register_dispatch" class="fn">on_register_dispatch</a>(&self, subscriber: &<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>)</h4></section></summary><div class='docblock'>Invoked when this subscriber becomes a <a href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch"><code>Dispatch</code></a>. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.on_register_dispatch">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.max_level_hint" class="method trait-impl"><a class="src rightside" href="../../src/tracing_core/subscriber.rs.html#230">source</a><a href="#method.max_level_hint" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.max_level_hint" class="fn">max_level_hint</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../filter/struct.LevelFilter.html" title="struct tracing_subscriber::filter::LevelFilter">LevelFilter</a>></h4></section></summary><div class='docblock'>Returns the highest <a href="../../tracing_core/metadata/struct.Level.html" title="struct tracing_core::metadata::Level">verbosity level</a> that this <code>Subscriber</code> will
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enable, or <code>None</code>, if the subscriber does not implement level-based
|
||
filtering or chooses not to implement this method. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.max_level_hint">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.drop_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing_core/subscriber.rs.html#407">source</a><a href="#method.drop_span" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.drop_span" class="fn">drop_span</a>(&self, _id: <a class="struct" href="../../tracing_core/span/struct.Id.html" title="struct tracing_core::span::Id">Id</a>)</h4></section></summary><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 0.1.2: use <code>Subscriber::try_close</code> instead</span></div></span><div class='docblock'><strong>This method is deprecated.</strong> <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.drop_span">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.downcast_raw" class="method trait-impl"><a class="src rightside" href="../../src/tracing_core/subscriber.rs.html#495">source</a><a href="#method.downcast_raw" class="anchor">§</a><h4 class="code-header">unsafe fn <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.downcast_raw" class="fn">downcast_raw</a>(&self, id: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.pointer.html">*const </a><a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.unit.html">()</a>></h4></section></summary><div class='docblock'>If <code>self</code> is the same type as the provided <code>TypeId</code>, returns an untyped
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<code>*const</code> pointer to that type. Otherwise, returns <code>None</code>. <a href="../../tracing_core/subscriber/trait.Subscriber.html#method.downcast_raw">Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Registry" class="impl"><a href="#impl-RefUnwindSafe-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section><section id="impl-Send-for-Registry" class="impl"><a href="#impl-Send-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section><section id="impl-Sync-for-Registry" class="impl"><a href="#impl-Sync-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section><section id="impl-Unpin-for-Registry" class="impl"><a href="#impl-Unpin-for-Registry" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section><section id="impl-UnwindSafe-for-Registry" class="impl"><a href="#impl-UnwindSafe-for-Registry" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Registry.html" title="struct tracing_subscriber::registry::Registry">Registry</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
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||
T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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||
T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#763">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#766">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
|
||
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Instrument-for-T" class="impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#325">source</a><a href="#impl-Instrument-for-T" 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="toggle method-toggle" open><summary><section id="method.instrument" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#86">source</a><a href="#method.instrument" class="anchor">§</a><h4 class="code-header">fn <a href="../../tracing/instrument/trait.Instrument.html#method.instrument" class="fn">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></h4></section></summary><div class='docblock'>Instruments this type with the provided <a href="../../tracing/span/struct.Span.html" title="struct tracing::span::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="toggle method-toggle" open><summary><section id="method.in_current_span" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#128">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="fn">in_current_span</a>(self) -> <a class="struct" href="../../tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><div class='docblock'>Instruments this type with the <a href="../../tracing/span/struct.Span.html#method.current" title="associated function tracing::span::Span::current">current</a> <a href="../../tracing/span/struct.Span.html" title="struct tracing::span::Span"><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="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
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||
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#756">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
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||
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-SubscriberExt-for-S" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1898">source</a><a href="#impl-SubscriberExt-for-S" class="anchor">§</a><h3 class="code-header">impl<S> <a class="trait" href="../layer/trait.SubscriberExt.html" title="trait tracing_subscriber::layer::SubscriberExt">SubscriberExt</a> for S<div class="where">where
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S: <a class="trait" href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber">Subscriber</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/layer/mod.rs.html#1501-1507">source</a><a href="#method.with" class="anchor">§</a><h4 class="code-header">fn <a href="../layer/trait.SubscriberExt.html#method.with" class="fn">with</a><L>(self, layer: L) -> <a class="struct" href="../layer/struct.Layered.html" title="struct tracing_subscriber::layer::Layered">Layered</a><L, Self><div class="where">where
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L: <a class="trait" href="../layer/trait.Layer.html" title="trait tracing_subscriber::layer::Layer">Layer</a><Self>,
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Self: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class='docblock'>Wraps <code>self</code> with the provided <code>layer</code>.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-SubscriberInitExt-for-T" class="impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#95">source</a><a href="#impl-SubscriberInitExt-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="../util/trait.SubscriberInitExt.html" title="trait tracing_subscriber::util::SubscriberInitExt">SubscriberInitExt</a> for T<div class="where">where
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T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.set_default" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#38-43">source</a><a href="#method.set_default" class="anchor">§</a><h4 class="code-header">fn <a href="../util/trait.SubscriberInitExt.html#method.set_default" class="fn">set_default</a>(self) -> <a class="struct" href="../../tracing_core/dispatcher/struct.DefaultGuard.html" title="struct tracing_core::dispatcher::DefaultGuard">DefaultGuard</a></h4></section></summary><div class='docblock'>Sets <code>self</code> as the <a href="https://docs.rs/tracing/0.1.21/tracing/dispatcher/index.html#setting-the-default-subscriber">default subscriber</a> in the current scope, returning a
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guard that will unset it when dropped. <a href="../util/trait.SubscriberInitExt.html#method.set_default">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.try_init" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#58-74">source</a><a href="#method.try_init" class="anchor">§</a><h4 class="code-header">fn <a href="../util/trait.SubscriberInitExt.html#method.try_init" class="fn">try_init</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.unit.html">()</a>, <a class="struct" href="../util/struct.TryInitError.html" title="struct tracing_subscriber::util::TryInitError">TryInitError</a>></h4></section></summary><div class='docblock'>Attempts to set <code>self</code> as the <a href="https://docs.rs/tracing/0.1.21/tracing/dispatcher/index.html#setting-the-default-subscriber">global default subscriber</a> in the current
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scope, returning an error if one is already set. <a href="../util/trait.SubscriberInitExt.html#method.try_init">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.init" class="method trait-impl"><a class="src rightside" href="../../src/tracing_subscriber/util.rs.html#89-92">source</a><a href="#method.init" class="anchor">§</a><h4 class="code-header">fn <a href="../util/trait.SubscriberInitExt.html#method.init" class="fn">init</a>(self)</h4></section></summary><div class='docblock'>Attempts to set <code>self</code> as the <a href="https://docs.rs/tracing/0.1.21/tracing/dispatcher/index.html#setting-the-default-subscriber">global default subscriber</a> in the current
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scope, panicking if this fails. <a href="../util/trait.SubscriberInitExt.html#method.init">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#803-805">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#810">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#788-790">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#795">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-WithSubscriber-for-T" class="impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#393">source</a><a href="#impl-WithSubscriber-for-T" 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="toggle method-toggle" open><summary><section id="method.with_subscriber" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#176-178">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="fn">with_subscriber</a><S>(self, subscriber: S) -> <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self><div class="where">where
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S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="../../tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>>,</div></h4></section></summary><div class='docblock'>Attaches the provided <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
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<a href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.with_current_subscriber" class="method trait-impl"><a class="src rightside" href="../../src/tracing/instrument.rs.html#228">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="fn">with_current_subscriber</a>(self) -> <a class="struct" href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a><Self></h4></section></summary><div class='docblock'>Attaches the current <a href="../../tracing/dispatcher/index.html#setting-the-default-subscriber" title="mod tracing::dispatcher">default</a> <a href="../../tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
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<a href="../../tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="../../tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber">Read more</a></div></details></div></details></div></section></div></main></body></html> |