<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `MAP` struct in crate `headless`."><metaname="keywords"content="rust, rustlang, rust-lang, MAP"><title>MAP in headless - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../SourceSerif4-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../FiraSans-Regular.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../FiraSans-Medium.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../SourceCodePro-Regular.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../SourceSerif4-Bold.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../SourceCodePro-Semibold.ttf.woff2"><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../ayu.css"disabled><linkrel="stylesheet"type="text/css"href="../dark.css"disabled><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptid="default-settings"></script><scriptsrc="../storage.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../main.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="alternate icon"type="image/png"href="../favicon-16x16.png"><linkrel="alternate icon"type="image/png"href="../favicon-32x32.png"><linkrel="icon"type="image/svg+xml"href="../favicon.svg"></head><bodyclass="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle">☰</button><aclass="sidebar-logo"href="../headless/index.html"><divclass="logo-container"><imgclass="rust-logo"src="../rust-logo.svg"alt="logo"></div>
</a><h2class="location"><ahref="#">MAP</a></h2><divclass="sidebar-elems"><section><divclass="block"><h3class="sidebar-title"><ahref="#fields">Fields</a></h3><ul><li><ahref="#structfield.__private_field">__private_field</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#deref-methods-RwLock%3CMap%3E">Methods from Deref<Target=RwLock<Map>></a></h3><ul><li><ahref="#method.clear_poison">clear_poison</a></li><li><ahref="#method.is_poisoned">is_poisoned</a></li><li><ahref="#method.read">read</a></li><li><ahref="#method.try_read">try_read</a></li><li><ahref="#method.try_write">try_write</a></li><li><ahref="#method.write">write</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#trait-implementations">Trait Implementations</a></h3><ul><li><ahref="#impl-Deref">Deref</a></li><li><ahref="#impl-LazyStatic">LazyStatic</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#synthetic-implementations">Auto Trait Implementations</a></h3><ul><li><ahref="#impl-RefUnwindSafe">RefUnwindSafe</a></li><li><ahref="#impl-Send">Send</a></li><li><ahref="#impl-Sync">Sync</a></li><li><ahref="#impl-Unpin">Unpin</a></li><li><ahref="#impl-UnwindSafe">UnwindSafe</a></li></ul></div><divclass="block"><h3class="sidebar-title"><ahref="#blanket-implementations">Blanket Implementations</a></h3><ul><li><ahref="#impl-Any">Any</a></li><li><ahref="#impl-Borrow%3CT%3E">Borrow<T></a></li><li><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a></li><li><ahref="#impl-Downcast">Downcast</a></li><li><ahref="#impl-DowncastSync">DowncastSync</a></li><li><ahref="#impl-From%3CT%3E">From<T></a></li><li><ahref="#impl-Instrument">Instrument</a></li><li><ahref="#impl-Into%3CU%3E">Into<U></a></li><li><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a></li><li><ahref="#impl-TryInto%3CU%3E">TryInto<U></a></li><li><ahref="#impl-VZip%3CV%3E">VZip<V></a></li></ul></div></section><h2class="location"><ahref="index.html">In headless</a></h2></div></nav><main><divclass="width-limiter"><divclass="sub-container"><aclass="sub-logo-container"href="../headless/index.html"><imgclass="rust-logo"src="../rust-logo.svg"alt="logo"></a><navclass="sub"><formclass="search-form"><divclass="search-container"><span></span><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><buttontype="button"id="help-button"title="help">?</button><divid="settings-menu"tabindex="-1">
<p>This function will return the <ahref="https://doc.rust-lang.org/1.63.0/std/sync/poison/enum.TryLockError.html#variant.Poisoned"><code>Poisoned</code></a> error if the RwLock is poisoned.
<p>This function will return the <ahref="https://doc.rust-lang.org/1.63.0/std/sync/poison/enum.TryLockError.html#variant.WouldBlock"><code>WouldBlock</code></a> error if the RwLock could not
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.write"class="method has-srclink"><spanclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/std/sync/rwlock.rs.html#290">source</a></span><ahref="#method.write"class="anchor"></a><h4class="code-header">pub fn <ahref="#method.write"class="fnname">write</a>(<br> &self<br>) -><aclass="enum"href="https://doc.rust-lang.org/1.63.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><<aclass="struct"href="https://doc.rust-lang.org/1.63.0/std/sync/rwlock/struct.RwLockWriteGuard.html"title="struct std::sync::rwlock::RwLockWriteGuard">RwLockWriteGuard</a><'_, T>, <aclass="struct"href="https://doc.rust-lang.org/1.63.0/std/sync/poison/struct.PoisonError.html"title="struct std::sync::poison::PoisonError">PoisonError</a><<aclass="struct"href="https://doc.rust-lang.org/1.63.0/std/sync/rwlock/struct.RwLockWriteGuard.html"title="struct std::sync::rwlock::RwLockWriteGuard">RwLockWriteGuard</a><'_, T>>></h4></section></summary><divclass="docblock"><p>Locks this rwlock with exclusive write access, blocking the current
<p>This function will return the <ahref="https://doc.rust-lang.org/1.63.0/std/sync/poison/enum.TryLockError.html#variant.Poisoned"><code>Poisoned</code></a> error if the RwLock is
<p>This function will return the <ahref="https://doc.rust-lang.org/1.63.0/std/sync/poison/enum.TryLockError.html#variant.WouldBlock"><code>WouldBlock</code></a> error if the RwLock could not
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.is_poisoned"class="method has-srclink"><spanclass="rightside"><spanclass="since"title="Stable since Rust version 1.2.0">1.2.0</span> · <aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/std/sync/rwlock.rs.html#369">source</a></span><ahref="#method.is_poisoned"class="anchor"></a><h4class="code-header">pub fn <ahref="#method.is_poisoned"class="fnname">is_poisoned</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.63.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Determines whether the lock is poisoned.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.clear_poison"class="method has-srclink"><spanclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/std/sync/rwlock.rs.html#408">source</a></span><ahref="#method.clear_poison"class="anchor"></a><h4class="code-header">pub fn <ahref="#method.clear_poison"class="fnname">clear_poison</a>(&self)</h4></section><spanclass="item-info"><divclass="stab unstable"><spanclass="emoji">🔬</span> This is a nightly-only experimental API. (<code>mutex_unpoison</code>)</div></span></summary><divclass="docblock"><p>Clear the poisoned state from a lock</p>
<p>If the lock is poisoned, it will remain poisoned until this function is called. This allows
recovering from a poisoned state and marking that it has recovered. For example, if the
value is overwritten by a known-good value, then the mutex can be marked as un-poisoned. Or
possibly, the value could be inspected to determine if it is in a consistent state, and if
then be further <code>downcast</code> into <code>Box<ConcreteType></code> where <code>ConcreteType</code> implements <code>Trait</code>. <a>Read more</a></p>
further <code>downcast</code> into <code>Rc<ConcreteType></code> where <code>ConcreteType</code> implements <code>Trait</code>. <a>Read more</a></p>
further <code>downcast</code> into <code>Arc<ConcreteType></code> where <code>ConcreteType</code> implements <code>Trait</code>. <a>Read more</a></p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-Instrument"class="impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://docs.rs/tracing/0.1.26/src/tracing/instrument.rs.html#155">source</a></span><ahref="#impl-Instrument"class="anchor"></a><h3class="code-header in-band">impl<T><aclass="trait"href="https://docs.rs/tracing/0.1.26/tracing/instrument/trait.Instrument.html"title="trait tracing::instrument::Instrument">Instrument</a> for T</h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.instrument"class="method trait-impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://docs.rs/tracing/0.1.26/src/tracing/instrument.rs.html#38">source</a></span><ahref="#method.instrument"class="anchor"></a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.26/tracing/instrument/trait.Instrument.html#method.instrument"class="fnname">instrument</a>(self, span: <aclass="struct"href="https://docs.rs/tracing/0.1.26/tracing/span/struct.Span.html"title="struct tracing::span::Span">Span</a>) -><aclass="struct"href="https://docs.rs/tracing/0.1.26/tracing/instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><divclass='docblock'><p>Instruments this type with the provided <code>Span</code>, returning an
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.in_current_span"class="method trait-impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://docs.rs/tracing/0.1.26/src/tracing/instrument.rs.html#74">source</a></span><ahref="#method.in_current_span"class="anchor"></a><h4class="code-header">fn <ahref="https://docs.rs/tracing/0.1.26/tracing/instrument/trait.Instrument.html#method.in_current_span"class="fnname">in_current_span</a>(self) -><aclass="struct"href="https://docs.rs/tracing/0.1.26/tracing/instrument/struct.Instrumented.html"title="struct tracing::instrument::Instrumented">Instrumented</a><Self></h4></section></summary><divclass='docblock'><p>Instruments this type with the <ahref="../struct.Span.html#method.current">current</a><code>Span</code>, returning an
<code><ahref="https://doc.rust-lang.org/1.63.0/core/convert/trait.From.html"title="From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E"class="impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/core/convert/mod.rs.html#598-607">source</a></span><ahref="#impl-TryFrom%3CU%3E"class="anchor"></a><h3class="code-header in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl has-srclink"><ahref="#associatedtype.Error"class="anchor"></a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.63.0/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl has-srclink"><spanclass="rightside"><spanclass="since"title="const unstable">const: <ahref="https://github.com/rust-lang/rust/issues/88674"title="Tracking issue for const_convert">unstable</a></span> · <aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/core/convert/mod.rs.html#604">source</a></span><ahref="#method.try_from"class="anchor"></a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fnname">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.63.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'><p>Performs the conversion.</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E"class="impl has-srclink"><spanclass="rightside"><aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/core/convert/mod.rs.html#583-592">source</a></span><ahref="#impl-TryInto%3CU%3E"class="anchor"></a><h3class="code-header in-band">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></h3></section></summary><divclass="impl-items"><detailsclass="rustdoc-toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl has-srclink"><ahref="#associatedtype.Error-1"class="anchor"></a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div></details><detailsclass="rustdoc-toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl has-srclink"><spanclass="rightside"><spanclass="since"title="const unstable">const: <ahref="https://github.com/rust-lang/rust/issues/88674"title="Tracking issue for const_convert">unstable</a></span> · <aclass="srclink"href="https://doc.rust-lang.org/1.63.0/src/core/convert/mod.rs.html#589">source</a></span><ahref="#method.try_into"class="anchor"></a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fnname">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.63.0/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.63.0/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'><p>Performs the conversion.</p>
</div></details></div></details><detailsclass="rustdoc-toggle implementors-toggle"><summary><sectionid="impl-VZip%3CV%3E"class="impl has-srclink"><ahref="#impl-VZip%3CV%3E"class="anchor"></a><h3class="code-header in-band">impl<V, T> VZip<V> for T <spanclass="where fmt-newline">where<br> V: MultiLane<T>, </span></h3></section></summary><divclass="impl-items"><sectionid="method.vzip"class="method trait-impl has-srclink"><ahref="#method.vzip"class="anchor"></a><h4class="code-header">fn <aclass="fnname">vzip</a>(self) -> V</h4></section></div></details></div></section></div></main><divid="rustdoc-vars"data-root-path="../"data-current-crate="headless"data-themes="ayu,dark,light"data-resource-suffix=""data-rustdoc-version="1.63.0 (4b91a6ea7 2022-08-08)"></div>
