| <!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="Captures represents a group of captured strings for a single match."><meta name="keywords" content="rust, rustlang, rust-lang, Captures"><title>Captures in regex - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" 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class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../regex/index.html"><div class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">Captures</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.expand">expand</a></li><li><a href="#method.get">get</a></li><li><a href="#method.iter">iter</a></li><li><a href="#method.len">len</a></li><li><a href="#method.name">name</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Debug-for-Captures%3C%27t%3E">Debug</a></li><li><a href="#impl-Index%3C%26%27i%20str%3E-for-Captures%3C%27t%3E">Index<&'i str></a></li><li><a href="#impl-Index%3Cusize%3E-for-Captures%3C%27t%3E">Index<usize></a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-Captures%3C%27t%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Captures%3C%27t%3E">Send</a></li><li><a href="#impl-Sync-for-Captures%3C%27t%3E">Sync</a></li><li><a href="#impl-Unpin-for-Captures%3C%27t%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Captures%3C%27t%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-Captures%3C%27t%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-Captures%3C%27t%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-Captures%3C%27t%3E">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-Captures%3C%27t%3E">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-Captures%3C%27t%3E">Into<U></a></li><li><a href="#impl-TryFrom%3CU%3E-for-Captures%3C%27t%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-Captures%3C%27t%3E">TryInto<U></a></li></ul></section><h2><a href="index.html">In regex</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" 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="../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="index.html">regex</a>::<wbr><a class="struct" href="#">Captures</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../src/regex/re_unicode.rs.html#1026-1030">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct Captures<'t> { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Captures represents a group of captured strings for a single match.</p> |
| <p>The 0th capture always corresponds to the entire match. Each subsequent |
| index corresponds to the next capture group in the regex. If a capture |
| group is named, then the matched string is <em>also</em> available via the <code>name</code> |
| method. (Note that the 0th capture is always unnamed and so must be |
| accessed with the <code>get</code> method.)</p> |
| <p>Positions returned from a capture group are always byte indices.</p> |
| <p><code>'t</code> is the lifetime of the matched text.</p> |
| </div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1032-1104">source</a><a href="#impl-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.get" class="method has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1052-1054">source</a><h4 class="code-header">pub fn <a href="#method.get" class="fnname">get</a>(&self, i: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.Match.html" title="struct regex::Match">Match</a><'t>></h4></section></summary><div class="docblock"><p>Returns the match associated with the capture group at index <code>i</code>. If |
| <code>i</code> does not correspond to a capture group, or if the capture group |
| did not participate in the match, then <code>None</code> is returned.</p> |
| <h5 id="examples"><a href="#examples">Examples</a></h5> |
| <p>Get the text of the match with a default of an empty string if this |
| group didn’t participate in the match:</p> |
| |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>re = Regex::new(<span class="string">r"[a-z]+(?:([0-9]+)|([A-Z]+))"</span>).unwrap(); |
| <span class="kw">let </span>caps = re.captures(<span class="string">"abc123"</span>).unwrap(); |
| |
| <span class="kw">let </span>text1 = caps.get(<span class="number">1</span>).map_or(<span class="string">""</span>, |m| m.as_str()); |
| <span class="kw">let </span>text2 = caps.get(<span class="number">2</span>).map_or(<span class="string">""</span>, |m| m.as_str()); |
| <span class="macro">assert_eq!</span>(text1, <span class="string">"123"</span>); |
| <span class="macro">assert_eq!</span>(text2, <span class="string">""</span>);</code></pre></div> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.name" class="method has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1058-1060">source</a><h4 class="code-header">pub fn <a href="#method.name" class="fnname">name</a>(&self, name: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.Match.html" title="struct regex::Match">Match</a><'t>></h4></section></summary><div class="docblock"><p>Returns the match for the capture group named <code>name</code>. If <code>name</code> isn’t a |
| valid capture group or didn’t match anything, then <code>None</code> is returned.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.iter" class="method has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1067-1069">source</a><h4 class="code-header">pub fn <a href="#method.iter" class="fnname">iter</a><'c>(&'c self) -> <a class="struct" href="struct.SubCaptureMatches.html" title="struct regex::SubCaptureMatches">SubCaptureMatches</a><'c, 't><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.SubCaptureMatches.html" title="struct regex::SubCaptureMatches">SubCaptureMatches</a><'c, 't></span><code class="content"><span class="where fmt-newline">impl<'c, 't> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="struct.SubCaptureMatches.html" title="struct regex::SubCaptureMatches">SubCaptureMatches</a><'c, 't></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="associatedtype">Item</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.Match.html" title="struct regex::Match">Match</a><'t>>;</span></code></span></span></span></span></h4></section></summary><div class="docblock"><p>An iterator that yields all capturing matches in the order in which |
| they appear in the regex. If a particular capture group didn’t |
| participate in the match, then <code>None</code> is yielded for that capture.</p> |
| <p>The first match always corresponds to the overall match of the regex.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.expand" class="method has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1092-1094">source</a><h4 class="code-header">pub fn <a href="#method.expand" class="fnname">expand</a>(&self, replacement: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, dst: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>)</h4></section></summary><div class="docblock"><p>Expands all instances of <code>$name</code> in <code>replacement</code> to the corresponding |
| capture group <code>name</code>, and writes them to the <code>dst</code> buffer given.</p> |
| <p><code>name</code> may be an integer corresponding to the index of the capture |
| group (counted by order of opening parenthesis where <code>0</code> is the |
| entire match) or it can be a name (consisting of letters, digits or |
| underscores) corresponding to a named capture group.</p> |
| <p>If <code>name</code> isn’t a valid capture group (whether the name doesn’t exist |
| or isn’t a valid index), then it is replaced with the empty string.</p> |
| <p>The longest possible name consisting of the characters <code>[_0-9A-Za-z]</code> |
| is used. e.g., <code>$1a</code> looks up the capture group named <code>1a</code> and not the |
| capture group at index <code>1</code>. To exert more precise control over the |
| name, or to refer to a capture group name that uses characters outside |
| of <code>[_0-9A-Za-z]</code>, use braces, e.g., <code>${1}a</code> or <code>${foo[bar].baz}</code>. When |
| using braces, any sequence of characters is permitted. If the sequence |
| does not refer to a capture group name in the corresponding regex, then |
| it is replaced with an empty string.</p> |
| <p>To write a literal <code>$</code> use <code>$$</code>.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.len" class="method has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1101-1103">source</a><h4 class="code-header">pub fn <a href="#method.len" class="fnname">len</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Returns the total number of capture groups (even if they didn’t match).</p> |
| <p>This is always at least <code>1</code>, since every regex has at least one capture |
| group that corresponds to the full match.</p> |
| </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="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1106-1110">source</a><a href="#impl-Debug-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1107-1109">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/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/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Index%3C%26%27i%20str%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1166-1174">source</a><a href="#impl-Index%3C%26%27i%20str%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t, 'i> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a><&'i <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section></summary><div class="docblock"><p>Get a group by name.</p> |
| <p><code>'t</code> is the lifetime of the matched text and <code>'i</code> is the lifetime |
| of the group name (the index).</p> |
| <p>The text can’t outlive the <code>Captures</code> object if this method is |
| used, because of how <code>Index</code> is defined (normally <code>a[i]</code> is part |
| of <code>a</code> and can’t outlive it); to do that, use <code>name</code> instead.</p> |
| <h4 id="panics-1"><a href="#panics-1">Panics</a></h4> |
| <p>If there is no group named by the given value.</p> |
| </div><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Output-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Output-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.index-1" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1169-1173">source</a><a href="#method.index-1" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#tymethod.index" class="fnname">index</a><'a>(&'a self, name: &'i <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> &'a <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Index%3Cusize%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1144-1152">source</a><a href="#impl-Index%3Cusize%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section></summary><div class="docblock"><p>Get a group by index.</p> |
| <p><code>'t</code> is the lifetime of the matched text.</p> |
| <p>The text can’t outlive the <code>Captures</code> object if this method is |
| used, because of how <code>Index</code> is defined (normally <code>a[i]</code> is part |
| of <code>a</code> and can’t outlive it); to do that, use <code>get()</code> instead.</p> |
| <h4 id="panics"><a href="#panics">Panics</a></h4> |
| <p>If there is no group at the given index.</p> |
| </div><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Output" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.index" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/regex/re_unicode.rs.html#1147-1151">source</a><a href="#method.index" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#tymethod.index" class="fnname">index</a>(&self, i: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>) -> &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/nightly/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details></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-Captures%3C%27t%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section><section id="impl-Send-for-Captures%3C%27t%3E" class="impl has-srclink"><a href="#impl-Send-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section><section id="impl-Sync-for-Captures%3C%27t%3E" class="impl has-srclink"><a href="#impl-Sync-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section><section id="impl-Unpin-for-Captures%3C%27t%3E" class="impl has-srclink"><a href="#impl-Unpin-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></h3></section><section id="impl-UnwindSafe-for-Captures%3C%27t%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<'t> <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Captures.html" title="struct regex::Captures">Captures</a><'t></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="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#200">source</a><a href="#impl-Any-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#201">source</a><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/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/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#211">source</a><a href="#impl-Borrow%3CT%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213">source</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220">source</a><a href="#impl-BorrowMut%3CT%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221">source</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#733">source</a><a href="#impl-From%3CT%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#736">source</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#717">source</a><a href="#impl-Into%3CU%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#725">source</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> 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/nightly/core/convert/trait.From.html" title="From">From</a><T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#775">source</a><a href="#impl-TryFrom%3CU%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/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="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#781">source</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-Captures%3C%27t%3E" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#760">source</a><a href="#impl-TryInto%3CU%3E-for-Captures%3C%27t%3E" class="anchor"></a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/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="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#766">source</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="regex" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
