34 lines
4.2 KiB
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34 lines
4.2 KiB
HTML
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Statically constructs new span metadata."><title>metadata in tracing_core - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="tracing_core" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-263c88ec.css"></noscript><link rel="icon" href="https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/favicon.ico"></head><body class="rustdoc macro"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">metadata</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../tracing_core/index.html"><img src="https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/logo-type.png" alt="logo"></a><h2><a href="../tracing_core/index.html">tracing_<wbr>core</a><span class="version">0.1.36</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="index.html">tracing_core</a></div><h1>Macro <span class="macro">metadata</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../src/tracing_core/lib.rs.html#230-267">Source</a> </span></div><pre class="rust item-decl"><code>macro_rules! metadata {
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(
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name: $name:expr,
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target: $target:expr,
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level: $level:expr,
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fields: $fields:expr,
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callsite: $callsite:expr,
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kind: $kind:expr
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) => { ... };
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(
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name: $name:expr,
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target: $target:expr,
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level: $level:expr,
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fields: $fields:expr,
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callsite: $callsite:expr,
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kind: $kind:expr,
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) => { ... };
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Statically constructs new span <a href="struct.Metadata.html" title="struct tracing_core::Metadata">metadata</a>.</p>
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<p>/// For example:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tracing_core::metadata;
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<span class="kw">use </span>tracing_core::metadata::{Kind, Level, Metadata};
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<span class="kw">static </span>FOO_CALLSITE: MyCallsite = MyCallsite {
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<span class="comment">// ...
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</span>};
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<span class="kw">static </span>FOO_METADATA: Metadata = <span class="macro">metadata!</span>{
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name: <span class="string">"foo"</span>,
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target: <span class="macro">module_path!</span>(),
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level: Level::DEBUG,
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fields: <span class="kw-2">&</span>[<span class="string">"bar"</span>, <span class="string">"baz"</span>],
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callsite: <span class="kw-2">&</span>FOO_CALLSITE,
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kind: Kind::SPAN,
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};</code></pre></div></div></details></section></div></main></body></html> |