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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="Always run on scope exit."><title>Always in scopeguard - 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="scopeguard" 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="alternate icon" type="image/png" href="../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc enum"><!--[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="#">Always</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../scopeguard/index.html">scopeguard</a><span class="version">1.2.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Always</a></h2><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Debug-for-Always" title="Debug">Debug</a></li><li><a href="#impl-Strategy-for-Always" title="Strategy">Strategy</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-Freeze-for-Always" title="Freeze">Freeze</a></li><li><a href="#impl-RefUnwindSafe-for-Always" title="RefUnwindSafe">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Always" title="Send">Send</a></li><li><a href="#impl-Sync-for-Always" title="Sync">Sync</a></li><li><a href="#impl-Unpin-for-Always" title="Unpin">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Always" title="UnwindSafe">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T" title="Any">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T" title="Borrow&#60;T&#62;">Borrow&#60;T&#62;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T" title="BorrowMut&#60;T&#62;">BorrowMut&#60;T&#62;</a></li><li><a href="#impl-From%3CT%3E-for-T" title="From&#60;T&#62;">From&#60;T&#62;</a></li><li><a href="#impl-Into%3CU%3E-for-T" title="Into&#60;U&#62;">Into&#60;U&#62;</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T" title="TryFrom&#60;U&#62;">TryFrom&#60;U&#62;</a></li><li><a href="#impl-TryInto%3CU%3E-for-T" title="TryInto&#60;U&#62;">TryInto&#60;U&#62;</a></li></ul></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="index.html">In crate scopeguard</a></h2></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">scopeguard</a></div><h1>Enum <span class="enum">Always</span>&nbsp;<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/scopeguard/lib.rs.html#213">Source</a> </span></div><pre class="rust item-decl"><code>pub enum Always {}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Always run on scope exit.</p>
<p>“Always” run: on regular exit from a scope or on unwinding from a panic.
Can not run on abort, process exit, and other catastrophic events where
destructors dont run.</p>
</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-Always" class="impl"><a class="src rightside" href="../src/scopeguard/lib.rs.html#212">Source</a><a href="#impl-Debug-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</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/scopeguard/lib.rs.html#212">Source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.93.1/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Strategy-for-Always" class="impl"><a class="src rightside" href="../src/scopeguard/lib.rs.html#229-234">Source</a><a href="#impl-Strategy-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.Strategy.html" title="trait scopeguard::Strategy">Strategy</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.should_run" class="method trait-impl"><a class="src rightside" href="../src/scopeguard/lib.rs.html#231-233">Source</a><a href="#method.should_run" class="anchor">§</a><h4 class="code-header">fn <a href="trait.Strategy.html#tymethod.should_run" class="fn">should_run</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Return <code>true</code> if the guards associated code should run
(in the context where this method is called).</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-Freeze-for-Always" class="impl"><a href="#impl-Freeze-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section><section id="impl-RefUnwindSafe-for-Always" class="impl"><a href="#impl-RefUnwindSafe-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section><section id="impl-Send-for-Always" class="impl"><a href="#impl-Send-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section><section id="impl-Sync-for-Always" class="impl"><a href="#impl-Sync-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section><section id="impl-Unpin-for-Always" class="impl"><a href="#impl-Unpin-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section><section id="impl-UnwindSafe-for-Always" class="impl"><a href="#impl-UnwindSafe-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</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/1.93.1/src/core/any.rs.html#138">Source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/any.rs.html#139">Source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/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/1.93.1/src/core/borrow.rs.html#212">Source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/borrow.rs.html#214">Source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/borrow.rs.html#221">Source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/borrow.rs.html#222">Source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/convert/mod.rs.html#785">Source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; 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/1.93.1/src/core/convert/mod.rs.html#788">Source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; 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-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/convert/mod.rs.html#767-769">Source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</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/1.93.1/src/core/convert/mod.rs.html#777">Source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</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/1.93.1/src/core/convert/mod.rs.html#827-829">Source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/convert/mod.rs.html#831">Source</a><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/convert/mod.rs.html#834">Source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</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/1.93.1/src/core/convert/mod.rs.html#811-813">Source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.93.1/src/core/convert/mod.rs.html#815">Source</a><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.93.1/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/1.93.1/src/core/convert/mod.rs.html#818">Source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.93.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html>

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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="Create a new `ScopeGuard` owning `v` and with deferred closure `dropfn`."><title>guard in scopeguard - 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="scopeguard" 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="alternate icon" type="image/png" href="../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc fn"><!--[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="#">guard</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../scopeguard/index.html">scopeguard</a><span class="version">1.2.0</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">scopeguard</a></div><h1>Function <span class="fn">guard</span>&nbsp;<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/scopeguard/lib.rs.html#375-380">Source</a> </span></div><pre class="rust item-decl"><code>pub fn guard&lt;T, F&gt;(v: T, dropfn: F) -&gt; <a class="struct" href="struct.ScopeGuard.html" title="struct scopeguard::ScopeGuard">ScopeGuard</a>&lt;T, F, <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a>&gt;<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.93.1/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(T),</div></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Create a new <code>ScopeGuard</code> owning <code>v</code> and with deferred closure <code>dropfn</code>.</p>
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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 scope guard will run a given closure when it goes out of scope, even if the code between panics. (as long as panic doesnt abort)"><title>scopeguard - 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="scopeguard" 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="../crates.js"></script><script defer src="../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc mod crate"><!--[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="#">Crate scopeguard</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../scopeguard/index.html">scopeguard</a><span class="version">1.2.0</span></h2></div><div class="sidebar-elems"><ul class="block"><li><a id="all-types" href="all.html">All Items</a></li></ul><section id="rustdoc-toc"><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#examples" title="Examples">Examples</a><ul><li><a href="#hello-world" title="Hello World">Hello World</a></li><li><a href="#defer" title="`defer!`"><code>defer!</code></a></li><li><a href="#scope-guard-with-value" title="Scope Guard with Value">Scope Guard with Value</a></li></ul></li><li><a href="#crate-features" title="Crate Features">Crate Features</a></li><li><a href="#rust-version" title="Rust Version">Rust Version</a></li></ul><h3><a href="#macros">Crate Items</a></h3><ul class="block"><li><a href="#macros" title="Macros">Macros</a></li><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li><li><a href="#traits" title="Traits">Traits</a></li><li><a href="#functions" title="Functions">Functions</a></li></ul></section><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"><h1>Crate <span>scopeguard</span>&nbsp;<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/scopeguard/lib.rs.html#1-595">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A scope guard will run a given closure when it goes out of scope,
even if the code between panics.
(as long as panic doesnt abort)</p>
<h2 id="examples"><a class="doc-anchor" href="#examples">§</a>Examples</h2><h3 id="hello-world"><a class="doc-anchor" href="#hello-world">§</a>Hello World</h3>
<p>This example creates a scope guard with an example function:</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">extern crate </span>scopeguard;
<span class="kw">fn </span>f() {
<span class="kw">let </span>_guard = scopeguard::guard((), |<span class="kw">_</span>| {
<span class="macro">println!</span>(<span class="string">"Hello Scope Exit!"</span>);
});
<span class="comment">// rest of the code here.
// Here, at the end of `_guard`'s scope, the guard's closure is called.
// It is also called if we exit this scope through unwinding instead.
</span>}</code></pre></div><h3 id="defer"><a class="doc-anchor" href="#defer">§</a><code>defer!</code></h3>
<p>Use the <code>defer</code> macro to run an operation at scope exit,
either regular scope exit or during unwinding from a panic.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="attr">#[macro_use(defer)] </span><span class="kw">extern crate </span>scopeguard;
<span class="kw">use </span>std::cell::Cell;
<span class="kw">fn </span>main() {
<span class="comment">// use a cell to observe drops during and after the scope guard is active
</span><span class="kw">let </span>drop_counter = Cell::new(<span class="number">0</span>);
{
<span class="comment">// Create a scope guard using `defer!` for the current scope
</span><span class="macro">defer!</span> {
drop_counter.set(<span class="number">1 </span>+ drop_counter.get());
}
<span class="comment">// Do regular operations here in the meantime.
// Just before scope exit: it hasn't run yet.
</span><span class="macro">assert_eq!</span>(drop_counter.get(), <span class="number">0</span>);
<span class="comment">// The following scope end is where the defer closure is called
</span>}
<span class="macro">assert_eq!</span>(drop_counter.get(), <span class="number">1</span>);
}</code></pre></div><h3 id="scope-guard-with-value"><a class="doc-anchor" href="#scope-guard-with-value">§</a>Scope Guard with Value</h3>
<p>If the scope guard closure needs to access an outer value that is also
mutated outside of the scope guard, then you may want to use the scope guard
with a value. The guard works like a smart pointer, so the inner value can
be accessed by reference or by mutable reference.</p>
<h4 id="1-the-guard-owns-a-file"><a class="doc-anchor" href="#1-the-guard-owns-a-file">§</a>1. The guard owns a file</h4>
<p>In this example, the scope guard owns a file and ensures pending writes are
synced at scope exit.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">extern crate </span>scopeguard;
<span class="kw">use </span>std::fs::<span class="kw-2">*</span>;
<span class="kw">use </span>std::io::{<span class="self">self</span>, Write};
<span class="kw">fn </span>try_main() -&gt; io::Result&lt;()&gt; {
<span class="kw">let </span>f = File::create(<span class="string">"newfile.txt"</span>)<span class="question-mark">?</span>;
<span class="kw">let </span><span class="kw-2">mut </span>file = scopeguard::guard(f, |f| {
<span class="comment">// ensure we flush file at return or panic
</span><span class="kw">let _ </span>= f.sync_all();
});
<span class="comment">// Access the file through the scope guard itself
</span>file.write_all(<span class="string">b"test me\n"</span>).map(|<span class="kw">_</span>| ())
}
<span class="kw">fn </span>main() {
try_main().unwrap();
}
</code></pre></div><h4 id="2-the-guard-restores-an-invariant-on-scope-exit"><a class="doc-anchor" href="#2-the-guard-restores-an-invariant-on-scope-exit">§</a>2. The guard restores an invariant on scope exit</h4>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">extern crate </span>scopeguard;
<span class="kw">use </span>std::mem::ManuallyDrop;
<span class="kw">use </span>std::ptr;
<span class="comment">// This function, just for this example, takes the first element
// and inserts it into the assumed sorted tail of the vector.
//
// For optimization purposes we temporarily violate an invariant of the
// Vec, that it owns all of its elements.
//
// The safe approach is to use swap, which means two writes to memory,
// the optimization is to use a “hole” which uses only one write of memory
// for each position it moves.
//
// We *must* use a scope guard to run this code safely. We
// are running arbitrary user code (comparison operators) that may panic.
// The scope guard ensures we restore the invariant after successful
// exit or during unwinding from panic.
</span><span class="kw">fn </span>insertion_sort_first&lt;T&gt;(v: <span class="kw-2">&amp;mut </span>Vec&lt;T&gt;)
<span class="kw">where </span>T: PartialOrd
{
<span class="kw">struct </span>Hole&lt;<span class="lifetime">'a</span>, T: <span class="lifetime">'a</span>&gt; {
v: <span class="kw-2">&amp;</span><span class="lifetime">'a </span><span class="kw-2">mut </span>Vec&lt;T&gt;,
index: usize,
value: ManuallyDrop&lt;T&gt;,
}
<span class="kw">unsafe </span>{
<span class="comment">// Create a moved-from location in the vector, a “hole”.
</span><span class="kw">let </span>value = ptr::read(<span class="kw-2">&amp;</span>v[<span class="number">0</span>]);
<span class="kw">let </span><span class="kw-2">mut </span>hole = Hole { v: v, index: <span class="number">0</span>, value: ManuallyDrop::new(value) };
<span class="comment">// Use a scope guard with a value.
// At scope exit, plug the hole so that the vector is fully
// initialized again.
// The scope guard owns the hole, but we can access it through the guard.
</span><span class="kw">let </span><span class="kw-2">mut </span>hole_guard = scopeguard::guard(hole, |hole| {
<span class="comment">// plug the hole in the vector with the value that was // taken out
</span><span class="kw">let </span>index = hole.index;
ptr::copy_nonoverlapping(<span class="kw-2">&amp;*</span>hole.value, <span class="kw-2">&amp;mut </span>hole.v[index], <span class="number">1</span>);
});
<span class="comment">// run algorithm that moves the hole in the vector here
// move the hole until it's in a sorted position
</span><span class="kw">for </span>i <span class="kw">in </span><span class="number">1</span>..hole_guard.v.len() {
<span class="kw">if </span><span class="kw-2">*</span>hole_guard.value &gt;= hole_guard.v[i] {
<span class="comment">// move the element back and the hole forward
</span><span class="kw">let </span>index = hole_guard.index;
hole_guard.v.swap(index, index + <span class="number">1</span>);
hole_guard.index += <span class="number">1</span>;
} <span class="kw">else </span>{
<span class="kw">break</span>;
}
}
<span class="comment">// When the scope exits here, the Vec becomes whole again!
</span>}
}
<span class="kw">fn </span>main() {
<span class="kw">let </span>string = String::from;
<span class="kw">let </span><span class="kw-2">mut </span>data = <span class="macro">vec!</span>[string(<span class="string">"c"</span>), string(<span class="string">"a"</span>), string(<span class="string">"b"</span>), string(<span class="string">"d"</span>)];
insertion_sort_first(<span class="kw-2">&amp;mut </span>data);
<span class="macro">assert_eq!</span>(data, <span class="macro">vec!</span>[<span class="string">"a"</span>, <span class="string">"b"</span>, <span class="string">"c"</span>, <span class="string">"d"</span>]);
}
</code></pre></div><h2 id="crate-features"><a class="doc-anchor" href="#crate-features">§</a>Crate Features</h2>
<ul>
<li><code>use_std</code>
<ul>
<li>Enabled by default. Enables the <code>OnUnwind</code> and <code>OnSuccess</code> strategies.</li>
<li>Disable to use <code>no_std</code>.</li>
</ul>
</li>
</ul>
<h2 id="rust-version"><a class="doc-anchor" href="#rust-version">§</a>Rust Version</h2>
<p>This version of the crate requires Rust 1.20 or later.</p>
<p>The scopeguard 1.x release series will use a carefully considered version
upgrade policy, where in a later 1.x version, we will raise the minimum
required Rust version.</p>
</div></details><h2 id="macros" class="section-header">Macros<a href="#macros" class="anchor">§</a></h2><dl class="item-table"><dt><a class="macro" href="macro.defer.html" title="macro scopeguard::defer">defer</a></dt><dd>Macro to create a <code>ScopeGuard</code> (always run).</dd></dl><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.ScopeGuard.html" title="struct scopeguard::ScopeGuard">Scope<wbr>Guard</a></dt><dd><code>ScopeGuard</code> is a scope guard that may own a protected value.</dd></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></dt><dd>Always run on scope exit.</dd></dl><h2 id="traits" class="section-header">Traits<a href="#traits" class="anchor">§</a></h2><dl class="item-table"><dt><a class="trait" href="trait.Strategy.html" title="trait scopeguard::Strategy">Strategy</a></dt><dd>Controls in which cases the associated code should be run</dd></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.guard.html" title="fn scopeguard::guard">guard</a></dt><dd>Create a new <code>ScopeGuard</code> owning <code>v</code> and with deferred closure <code>dropfn</code>.</dd></dl></section></div></main></body></html>

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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="Macro to create a `ScopeGuard` (always run)."><title>defer in scopeguard - 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="scopeguard" 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="alternate icon" type="image/png" href="../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></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="#">defer</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../scopeguard/index.html">scopeguard</a><span class="version">1.2.0</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">scopeguard</a></div><h1>Macro <span class="macro">defer</span>&nbsp;<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/scopeguard/lib.rs.html#257-261">Source</a> </span></div><pre class="rust item-decl"><code>macro_rules! defer {
($($t:tt)*) =&gt; { ... };
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Macro to create a <code>ScopeGuard</code> (always run).</p>
<p>The macro takes statements, which are the body of a closure
that will run when the scope is exited.</p>
</div></details></section></div></main></body></html>

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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="Controls in which cases the associated code should be run"><title>Strategy in scopeguard - 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="scopeguard" 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="alternate icon" type="image/png" href="../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><!--[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="#">Strategy</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../scopeguard/index.html">scopeguard</a><span class="version">1.2.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Strategy</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.should_run" title="should_run">should_run</a></li></ul><h3><a href="#dyn-compatibility">Dyn Compatibility</a></h3><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2 class="in-crate"><a href="index.html">In crate scopeguard</a></h2></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">scopeguard</a></div><h1>Trait <span class="trait">Strategy</span>&nbsp;<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/scopeguard/lib.rs.html#201-205">Source</a> </span></div><pre class="rust item-decl"><code>pub trait Strategy {
// Required method
fn <a href="#tymethod.should_run" class="fn">should_run</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.bool.html">bool</a>;
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Controls in which cases the associated code should be run</p>
</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.should_run" class="method"><a class="src rightside" href="../src/scopeguard/lib.rs.html#204">Source</a><h4 class="code-header">fn <a href="#tymethod.should_run" class="fn">should_run</a>() -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.93.1/core/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Return <code>true</code> if the guards associated code should run
(in the context where this method is called).</p>
</div></details></div><h2 id="dyn-compatibility" class="section-header">Dyn Compatibility<a href="#dyn-compatibility" class="anchor">§</a></h2><div class="dyn-compatibility-info"><p>This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.93.1/reference/items/traits.html#dyn-compatibility">dyn compatible</a>.</p><p><i>In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.</i></p></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><section id="impl-Strategy-for-Always" class="impl"><a class="src rightside" href="../src/scopeguard/lib.rs.html#229-234">Source</a><a href="#impl-Strategy-for-Always" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.Strategy.html" title="trait scopeguard::Strategy">Strategy</a> for <a class="enum" href="enum.Always.html" title="enum scopeguard::Always">Always</a></h3></section></div><script src="../trait.impl/scopeguard/trait.Strategy.js" async></script></section></div></main></body></html>