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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 mutex based on critical sections."><title>Mutex in critical_section - 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/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin 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class="sidebar"><a class="logo-container" href="../critical_section/index.html"><img class="rust-logo" src="../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><h2 class="location"><a href="#">Mutex</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.borrow">borrow</a></li><li><a href="#method.borrow_ref">borrow_ref</a></li><li><a href="#method.borrow_ref_mut">borrow_ref_mut</a></li><li><a href="#method.get_mut">get_mut</a></li><li><a href="#method.into_inner">into_inner</a></li><li><a href="#method.new">new</a></li><li><a href="#method.replace">replace</a></li><li><a href="#method.replace_with">replace_with</a></li><li><a href="#method.take">take</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Debug-for-Mutex%3CT%3E">Debug</a></li><li><a href="#impl-Sync-for-Mutex%3CT%3E">Sync</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-Mutex%3CT%3E">!RefUnwindSafe</a></li><li><a href="#impl-Send-for-Mutex%3CT%3E">Send</a></li><li><a href="#impl-Unpin-for-Mutex%3CT%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Mutex%3CT%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-Mutex%3CT%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-Mutex%3CT%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-Mutex%3CT%3E">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-Mutex%3CT%3E">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-Mutex%3CT%3E">Into<U></a></li><li><a href="#impl-TryFrom%3CU%3E-for-Mutex%3CT%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-Mutex%3CT%3E">TryInto<U></a></li></ul></section><h2><a href="index.html">In critical_section</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><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" title="help" tabindex="-1"><a href="../help.html">?</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">critical_section</a>::<wbr><a class="struct" href="#">Mutex</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/critical_section/mutex.rs.html#74-76">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Mutex<T> { /* private fields */ }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A mutex based on critical sections.</p>
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<h2 id="example"><a href="#example">Example</a></h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code>
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<span class="kw">static </span>FOO: Mutex<Cell<i32>> = Mutex::new(Cell::new(<span class="number">42</span>));
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<span class="kw">fn </span>main() {
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critical_section::with(|cs| {
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FOO.borrow(cs).set(<span class="number">43</span>);
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});
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}
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<span class="kw">fn </span>interrupt_handler() {
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<span class="kw">let </span>_x = critical_section::with(|cs| FOO.borrow(cs).get());
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}</code></pre></div>
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<h2 id="design"><a href="#design">Design</a></h2>
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<p><a href="https://doc.rust-lang.org/std/sync/struct.Mutex.html"><code>std::sync::Mutex</code></a> has two purposes. It converts types that are [<code>Send</code>]
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but not [<code>Sync</code>] into types that are both; and it provides
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<a href="https://doc.rust-lang.org/reference/interior-mutability.html">interior mutability</a>. <code>critical_section::Mutex</code>, on the other hand, only adds
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<code>Sync</code>. It does <em>not</em> provide interior mutability.</p>
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<p>This was a conscious design choice. It is possible to create multiple
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<a href="struct.CriticalSection.html" title="struct critical_section::CriticalSection"><code>CriticalSection</code></a> tokens, either by nesting critical sections or <code>Copy</code>ing
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an existing token. As a result, it would not be sound for <a href="struct.Mutex.html#method.borrow" title="method critical_section::Mutex::borrow"><code>Mutex::borrow</code></a>
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to return <code>&mut T</code>, because there would be nothing to prevent calling
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<code>borrow</code> multiple times to create aliased <code>&mut T</code> references.</p>
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<p>The solution is to include a runtime check to ensure that each resource is
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borrowed only once. This is what <code>std::sync::Mutex</code> does. However, this is
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a runtime cost that may not be required in all circumstances. For instance,
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<code>Mutex<Cell<T>></code> never needs to create <code>&mut T</code> or equivalent.</p>
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<p>If <code>&mut T</code> is needed, the simplest solution is to use <code>Mutex<RefCell<T>></code>,
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which is the closest analogy to <code>std::sync::Mutex</code>. [<code>RefCell</code>] inserts the
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exact runtime check necessary to guarantee that the <code>&mut T</code> reference is
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unique.</p>
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<p>To reduce verbosity when using <code>Mutex<RefCell<T>></code>, we reimplement some of
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<code>RefCell</code>’s methods on it directly.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code>
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<span class="kw">static </span>FOO: Mutex<RefCell<i32>> = Mutex::new(RefCell::new(<span class="number">42</span>));
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<span class="kw">fn </span>main() {
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critical_section::with(|cs| {
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<span class="comment">// Instead of calling this
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</span><span class="kw">let _ </span>= FOO.borrow(cs).take();
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<span class="comment">// Call this
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</span><span class="kw">let _ </span>= FOO.take(cs);
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<span class="comment">// `RefCell::borrow` and `RefCell::borrow_mut` are renamed to
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// `borrow_ref` and `borrow_ref_mut` to avoid name collisions
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</span><span class="kw">let _</span>: <span class="kw-2">&mut </span>i32 = <span class="kw-2">&mut *</span>FOO.borrow_ref_mut(cs);
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})
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}</code></pre></div>
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</div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Mutex%3CT%3E" class="impl"><a class="src rightside" href="../src/critical_section/mutex.rs.html#78-109">source</a><a href="#impl-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#81-85">source</a><h4 class="code-header">pub const fn <a href="#method.new" class="fn">new</a>(value: T) -> Self</h4></section></summary><div class="docblock"><p>Creates a new mutex.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.get_mut" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#94-96">source</a><h4 class="code-header">pub fn <a href="#method.get_mut" class="fn">get_mut</a>(&mut self) -> &mut T</h4></section></summary><div class="docblock"><p>Gets a mutable reference to the contained value when the mutex is already uniquely borrowed.</p>
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<p>This does not require locking or a critical section since it takes <code>&mut self</code>, which
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guarantees unique ownership already. Care must be taken when using this method to
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<strong>unsafely</strong> access <code>static mut</code> variables, appropriate fences must be used to prevent
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unwanted optimizations.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.into_inner" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#100-102">source</a><h4 class="code-header">pub fn <a href="#method.into_inner" class="fn">into_inner</a>(self) -> T</h4></section></summary><div class="docblock"><p>Unwraps the contained value, consuming the mutex.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#106-108">source</a><h4 class="code-header">pub fn <a href="#method.borrow" class="fn">borrow</a><'cs>(&'cs self, _cs: <a class="struct" href="struct.CriticalSection.html" title="struct critical_section::CriticalSection">CriticalSection</a><'cs>) -> &'cs T</h4></section></summary><div class="docblock"><p>Borrows the data for the duration of the critical section.</p>
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</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Mutex%3CRefCell%3CT%3E%3E" class="impl"><a class="src rightside" href="../src/critical_section/mutex.rs.html#111-170">source</a><a href="#impl-Mutex%3CRefCell%3CT%3E%3E" class="anchor">§</a><h3 class="code-header">impl<T> <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><RefCell<T>></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.replace" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#122-124">source</a><h4 class="code-header">pub fn <a href="#method.replace" class="fn">replace</a><'cs>(&'cs self, cs: <a class="struct" href="struct.CriticalSection.html" title="struct critical_section::CriticalSection">CriticalSection</a><'cs>, t: T) -> T</h4></section></summary><div class="docblock"><p>Borrow the data and call [<code>RefCell::replace</code>]</p>
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<p>This is equivalent to <code>self.borrow(cs).replace(t)</code></p>
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<h5 id="panics"><a href="#panics">Panics</a></h5>
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<p>This call could panic. See the documentation for [<code>RefCell::replace</code>]
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for more details.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.replace_with" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#136-141">source</a><h4 class="code-header">pub fn <a href="#method.replace_with" class="fn">replace_with</a><'cs, F>(&'cs self, cs: <a class="struct" href="struct.CriticalSection.html" title="struct critical_section::CriticalSection">CriticalSection</a><'cs>, f: F) -> T<span class="where fmt-newline">where
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F: FnOnce(&mut T) -> T,</span></h4></section></summary><div class="docblock"><p>Borrow the data and call [<code>RefCell::replace_with</code>]</p>
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<p>This is equivalent to <code>self.borrow(cs).replace_with(f)</code></p>
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<h5 id="panics-1"><a href="#panics-1">Panics</a></h5>
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<p>This call could panic. See the documentation for
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[<code>RefCell::replace_with</code>] for more details.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.borrow_ref" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#153-155">source</a><h4 class="code-header">pub fn <a href="#method.borrow_ref" class="fn">borrow_ref</a><'cs>(&'cs self, cs: <a class="struct" href="struct.CriticalSection.html" title="struct critical_section::CriticalSection">CriticalSection</a><'cs>) -> Ref<'cs, T></h4></section></summary><div class="docblock"><p>Borrow the data and call [<code>RefCell::borrow</code>]</p>
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<p>This is equivalent to <code>self.borrow(cs).borrow()</code></p>
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<h5 id="panics-2"><a href="#panics-2">Panics</a></h5>
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<p>This call could panic. See the documentation for [<code>RefCell::borrow</code>]
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for more details.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.borrow_ref_mut" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#167-169">source</a><h4 class="code-header">pub fn <a href="#method.borrow_ref_mut" class="fn">borrow_ref_mut</a><'cs>(
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&'cs self,
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cs: <a class="struct" href="struct.CriticalSection.html" title="struct critical_section::CriticalSection">CriticalSection</a><'cs>
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) -> RefMut<'cs, T></h4></section></summary><div class="docblock"><p>Borrow the data and call [<code>RefCell::borrow_mut</code>]</p>
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<p>This is equivalent to <code>self.borrow(cs).borrow_mut()</code></p>
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<h5 id="panics-3"><a href="#panics-3">Panics</a></h5>
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<p>This call could panic. See the documentation for [<code>RefCell::borrow_mut</code>]
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for more details.</p>
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</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Mutex%3CRefCell%3CT%3E%3E-1" class="impl"><a class="src rightside" href="../src/critical_section/mutex.rs.html#172-186">source</a><a href="#impl-Mutex%3CRefCell%3CT%3E%3E-1" class="anchor">§</a><h3 class="code-header">impl<T: Default> <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><RefCell<T>></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.take" class="method"><a class="src rightside" href="../src/critical_section/mutex.rs.html#183-185">source</a><h4 class="code-header">pub fn <a href="#method.take" class="fn">take</a><'cs>(&'cs self, cs: <a class="struct" href="struct.CriticalSection.html" title="struct critical_section::CriticalSection">CriticalSection</a><'cs>) -> T</h4></section></summary><div class="docblock"><p>Borrow the data and call [<code>RefCell::take</code>]</p>
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<p>This is equivalent to <code>self.borrow(cs).take()</code></p>
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<h5 id="panics-4"><a href="#panics-4">Panics</a></h5>
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<p>This call could panic. See the documentation for [<code>RefCell::take</code>]
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for more details.</p>
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</div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-Mutex%3CT%3E" class="impl"><a class="src rightside" href="../src/critical_section/mutex.rs.html#73">source</a><a href="#impl-Debug-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T: Debug> Debug for <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T></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/critical_section/mutex.rs.html#73">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a class="fn">fmt</a>(&self, f: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><section id="impl-Sync-for-Mutex%3CT%3E" class="impl"><a class="src rightside" href="../src/critical_section/mutex.rs.html#191">source</a><a href="#impl-Sync-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> Sync for <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T><span class="where fmt-newline">where
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T: Send,</span></h3></section></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Mutex%3CT%3E" class="impl"><a href="#impl-RefUnwindSafe-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> !RefUnwindSafe for <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T></h3></section><section id="impl-Send-for-Mutex%3CT%3E" class="impl"><a href="#impl-Send-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> Send for <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T><span class="where fmt-newline">where
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T: Send,</span></h3></section><section id="impl-Unpin-for-Mutex%3CT%3E" class="impl"><a href="#impl-Unpin-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> Unpin for <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T><span class="where fmt-newline">where
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T: Unpin,</span></h3></section><section id="impl-UnwindSafe-for-Mutex%3CT%3E" class="impl"><a href="#impl-UnwindSafe-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> UnwindSafe for <a class="struct" href="struct.Mutex.html" title="struct critical_section::Mutex">Mutex</a><T><span class="where fmt-newline">where
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T: UnwindSafe,</span></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-Mutex%3CT%3E" class="impl"><a href="#impl-Any-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where
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T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a class="fn">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-Mutex%3CT%3E" class="impl"><a href="#impl-Borrow%3CT%3E-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where
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T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow-1" class="method trait-impl"><a href="#method.borrow-1" class="anchor">§</a><h4 class="code-header">fn <a class="fn">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-Mutex%3CT%3E" class="impl"><a href="#impl-BorrowMut%3CT%3E-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where
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T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a class="fn">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-Mutex%3CT%3E" class="impl"><a href="#impl-From%3CT%3E-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> From<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 href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
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</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-Mutex%3CT%3E" class="impl"><a href="#impl-Into%3CU%3E-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where
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U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a 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>[From]<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-TryFrom%3CU%3E-for-Mutex%3CT%3E" class="impl"><a href="#impl-TryFrom%3CU%3E-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where
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U: Into<T>,</span></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 class="associatedtype">Error</a> = Infallible</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 href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a class="fn">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></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-Mutex%3CT%3E" class="impl"><a href="#impl-TryInto%3CU%3E-for-Mutex%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where
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U: TryFrom<T>,</span></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 class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</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 href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a class="fn">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html> |