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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="API documentation for the Rust `Downcast` trait in crate `downcast`."><meta name="keywords" content="rust, rustlang, rust-lang, Downcast"><title>downcast::Downcast - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><p class='location'>Trait Downcast</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.is_type">is_type</a><a href="#method.downcast_ref_unchecked">downcast_ref_unchecked</a><a href="#method.downcast_ref">downcast_ref</a><a href="#method.downcast_mut_unchecked">downcast_mut_unchecked</a><a href="#method.downcast_mut">downcast_mut</a><a href="#method.downcast_unchecked">downcast_unchecked</a><a href="#method.downcast">downcast</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>downcast</a></p><script>window.sidebarCurrent = {name: 'Downcast', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>downcast</a>::<wbr><a class="trait" href=''>Downcast</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../src/downcast/lib.rs.html#117-160' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait Downcast<T>: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a> <span class="where fmt-newline">where<br> T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>, </span>{
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fn <a href='#method.is_type' class='fnname'>is_type</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
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<div class='item-spacer'></div> unsafe fn <a href='#method.downcast_ref_unchecked' class='fnname'>downcast_ref_unchecked</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T { ... }
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<div class='item-spacer'></div> fn <a href='#method.downcast_ref' class='fnname'>downcast_ref</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T, <a class="struct" href="../downcast/struct.TypeMismatch.html" title="struct downcast::TypeMismatch">TypeMismatch</a>> { ... }
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<div class='item-spacer'></div> unsafe fn <a href='#method.downcast_mut_unchecked' class='fnname'>downcast_mut_unchecked</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T { ... }
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<div class='item-spacer'></div> fn <a href='#method.downcast_mut' class='fnname'>downcast_mut</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T, <a class="struct" href="../downcast/struct.TypeMismatch.html" title="struct downcast::TypeMismatch">TypeMismatch</a>> { ... }
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<div class='item-spacer'></div> unsafe fn <a href='#method.downcast_unchecked' class='fnname'>downcast_unchecked</a>(self: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><Self>) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><T> { ... }
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<div class='item-spacer'></div> fn <a href='#method.downcast' class='fnname'>downcast</a>(self: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><Self>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><T>, <a class="struct" href="../downcast/struct.DowncastError.html" title="struct downcast::DowncastError">DowncastError</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><Self>>> { ... }
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}</pre></div>
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<h2 id='provided-methods' class='small-section-header'>
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Provided Methods<a href='#provided-methods' class='anchor'></a>
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</h2>
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<div class='methods'>
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<h3 id='method.is_type' class='method'><span id='is_type.v' class='invisible'><code>fn <a href='#method.is_type' class='fnname'>is_type</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></h3><h3 id='method.downcast_ref_unchecked' class='method'><span id='downcast_ref_unchecked.v' class='invisible'><code>unsafe fn <a href='#method.downcast_ref_unchecked' class='fnname'>downcast_ref_unchecked</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code></span></h3><h3 id='method.downcast_ref' class='method'><span id='downcast_ref.v' class='invisible'><code>fn <a href='#method.downcast_ref' class='fnname'>downcast_ref</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T, <a class="struct" href="../downcast/struct.TypeMismatch.html" title="struct downcast::TypeMismatch">TypeMismatch</a>></code></span></h3><h3 id='method.downcast_mut_unchecked' class='method'><span id='downcast_mut_unchecked.v' class='invisible'><code>unsafe fn <a href='#method.downcast_mut_unchecked' class='fnname'>downcast_mut_unchecked</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code></span></h3><h3 id='method.downcast_mut' class='method'><span id='downcast_mut.v' class='invisible'><code>fn <a href='#method.downcast_mut' class='fnname'>downcast_mut</a>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T, <a class="struct" href="../downcast/struct.TypeMismatch.html" title="struct downcast::TypeMismatch">TypeMismatch</a>></code></span></h3><h3 id='method.downcast_unchecked' class='method'><span id='downcast_unchecked.v' class='invisible'><code>unsafe fn <a href='#method.downcast_unchecked' class='fnname'>downcast_unchecked</a>(self: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><Self>) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><T></code></span></h3><h3 id='method.downcast' class='method'><span id='downcast.v' class='invisible'><code>fn <a href='#method.downcast' class='fnname'>downcast</a>(self: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><Self>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><T>, <a class="struct" href="../downcast/struct.DowncastError.html" title="struct downcast::DowncastError">DowncastError</a><<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><Self>>></code></span></h3></div>
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<h2 id='implementors' class='small-section-header'>
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Implementors<a href='#implementors' class='anchor'></a>
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</h2>
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<ul class='item-list' id='implementors-list'>
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<li><table class='table-display'><tbody><tr><td><code>impl<_T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>> Downcast<_T> for <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a> <span class="where fmt-newline">where<br> _T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../src/downcast/lib.rs.html#200-202' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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<li><table class='table-display'><tbody><tr><td><code>impl<_T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>> Downcast<_T> for <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> <span class="where fmt-newline">where<br> _T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../src/downcast/lib.rs.html#200-202' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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<li><table class='table-display'><tbody><tr><td><code>impl<_T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>> Downcast<_T> for <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> <span class="where fmt-newline">where<br> _T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../src/downcast/lib.rs.html#200-202' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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<li><table class='table-display'><tbody><tr><td><code>impl<_T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>> Downcast<_T> for <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> <span class="where fmt-newline">where<br> _T: <a class="trait" href="../downcast/trait.Any.html" title="trait downcast::Any">Any</a>, </span></code><td><div class='out-of-band'><a class='srclink' href='../src/downcast/lib.rs.html#200-202' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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</ul><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
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src="../implementors/downcast/trait.Downcast.js">
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</script></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "downcast";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html> |