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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="An error indicating that a search stopped before reporting whether a match exists or not."><title>MatchError in regex_automata - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-dd39b87e5fcfba68.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="regex_automata" data-themes="" data-resource-suffix="" data-rustdoc-version="1.80.0 (051478957 2024-07-21)" data-channel="1.80.0" data-search-js="search-d52510db62a78183.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-118b08c4c78b968e.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-20a3ad099b048cf2.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-df360f571f6edeae.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../regex_automata/index.html">regex_automata</a><span class="version">0.4.7</span></h2></div><h2 class="location"><a href="#">MatchError</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.gave_up">gave_up</a></li><li><a href="#method.haystack_too_long">haystack_too_long</a></li><li><a href="#method.kind">kind</a></li><li><a href="#method.new">new</a></li><li><a href="#method.quit">quit</a></li><li><a href="#method.unsupported_anchored">unsupported_anchored</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Clone-for-MatchError">Clone</a></li><li><a href="#impl-Debug-for-MatchError">Debug</a></li><li><a href="#impl-Display-for-MatchError">Display</a></li><li><a href="#impl-Eq-for-MatchError">Eq</a></li><li><a href="#impl-Error-for-MatchError">Error</a></li><li><a href="#impl-PartialEq-for-MatchError">PartialEq</a></li><li><a href="#impl-StructuralPartialEq-for-MatchError">StructuralPartialEq</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-Freeze-for-MatchError">Freeze</a></li><li><a href="#impl-RefUnwindSafe-for-MatchError">RefUnwindSafe</a></li><li><a href="#impl-Send-for-MatchError">Send</a></li><li><a href="#impl-Sync-for-MatchError">Sync</a></li><li><a href="#impl-Unpin-for-MatchError">Unpin</a></li><li><a href="#impl-UnwindSafe-for-MatchError">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-T">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-T">Into<U></a></li><li><a href="#impl-ToOwned-for-T">ToOwned</a></li><li><a href="#impl-ToString-for-T">ToString</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto<U></a></li></ul></section><h2><a href="index.html">In crate regex_automata</a></h2></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="index.html">regex_automata</a>::<wbr><a class="struct" href="#">MatchError</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../src/regex_automata/util/search.rs.html#1783-1786">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub struct MatchError(<span class="comment">/* private fields */</span>);</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>An error indicating that a search stopped before reporting whether a
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match exists or not.</p>
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<p>To be very clear, this error type implies that one cannot assume that no
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matches occur, since the search stopped before completing. That is, if
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you’re looking for information about where a search determined that no
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match can occur, then this error type does <em>not</em> give you that. (Indeed, at
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the time of writing, if you need such a thing, you have to write your own
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search routine.)</p>
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<p>Normally, when one searches for something, the response is either an
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affirmative “it was found at this location” or a negative “not found at
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all.” However, in some cases, a regex engine can be configured to stop its
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search before concluding whether a match exists or not. When this happens,
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it may be important for the caller to know why the regex engine gave up and
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where in the input it gave up at. This error type exposes the ‘why’ and the
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‘where.’</p>
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<p>For example, the DFAs provided by this library generally cannot correctly
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implement Unicode word boundaries. Instead, they provide an option to
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eagerly support them on ASCII text (since Unicode word boundaries are
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equivalent to ASCII word boundaries when searching ASCII text), but will
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“give up” if a non-ASCII byte is seen. In such cases, one is usually
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required to either report the failure to the caller (unergonomic) or
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otherwise fall back to some other regex engine (ergonomic, but potentially
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costly).</p>
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<p>More generally, some regex engines offer the ability for callers to specify
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certain bytes that will trigger the regex engine to automatically quit if
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they are seen.</p>
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<p>Still yet, there may be other reasons for a failed match. For example,
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the hybrid DFA provided by this crate can be configured to give up if it
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believes that it is not efficient. This in turn permits callers to choose a
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different regex engine.</p>
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<p>(Note that DFAs are configured by default to never quit or give up in this
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fashion. For example, by default, a DFA will fail to build if the regex
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pattern contains a Unicode word boundary. One needs to opt into the “quit”
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behavior via options, like
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<a href="hybrid/dfa/struct.Config.html#method.unicode_word_boundary" title="method regex_automata::hybrid::dfa::Config::unicode_word_boundary"><code>hybrid::dfa::Config::unicode_word_boundary</code></a>.)</p>
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<p>There are a couple other ways a search
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can fail. For example, when using the
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<a href="crate::nfa::thompson::backtrack::BoundedBacktracker"><code>BoundedBacktracker</code></a>
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with a haystack that is too long, or trying to run an unanchored search
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with a <a href="crate::dfa::onepass">one-pass DFA</a>.</p>
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</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1788-1846">source</a><a href="#impl-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></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/regex_automata/util/search.rs.html#1793-1802">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fn">new</a>(kind: <a class="enum" href="enum.MatchErrorKind.html" title="enum regex_automata::MatchErrorKind">MatchErrorKind</a>) -> <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h4></section></summary><div class="docblock"><p>Create a new error value with the given kind.</p>
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<p>This is a more verbose version of the kind-specific constructors,
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e.g., <code>MatchError::quit</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.kind" class="method"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1805-1807">source</a><h4 class="code-header">pub fn <a href="#method.kind" class="fn">kind</a>(&self) -> &<a class="enum" href="enum.MatchErrorKind.html" title="enum regex_automata::MatchErrorKind">MatchErrorKind</a></h4></section></summary><div class="docblock"><p>Returns a reference to the underlying error kind.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.quit" class="method"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1815-1817">source</a><h4 class="code-header">pub fn <a href="#method.quit" class="fn">quit</a>(byte: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.u8.html">u8</a>, offset: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h4></section></summary><div class="docblock"><p>Create a new “quit” error. The given <code>byte</code> corresponds to the value
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that tripped a search’s quit condition, and <code>offset</code> corresponds to the
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location in the haystack at which the search quit.</p>
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<p>This is the same as calling <code>MatchError::new</code> with a
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<a href="enum.MatchErrorKind.html#variant.Quit" title="variant regex_automata::MatchErrorKind::Quit"><code>MatchErrorKind::Quit</code></a> kind.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.gave_up" class="method"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1824-1826">source</a><h4 class="code-header">pub fn <a href="#method.gave_up" class="fn">gave_up</a>(offset: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h4></section></summary><div class="docblock"><p>Create a new “gave up” error. The given <code>offset</code> corresponds to the
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location in the haystack at which the search gave up.</p>
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<p>This is the same as calling <code>MatchError::new</code> with a
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<a href="enum.MatchErrorKind.html#variant.GaveUp" title="variant regex_automata::MatchErrorKind::GaveUp"><code>MatchErrorKind::GaveUp</code></a> kind.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.haystack_too_long" class="method"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1833-1835">source</a><h4 class="code-header">pub fn <a href="#method.haystack_too_long" class="fn">haystack_too_long</a>(len: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>) -> <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h4></section></summary><div class="docblock"><p>Create a new “haystack too long” error. The given <code>len</code> corresponds to
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the length of the haystack that was problematic.</p>
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<p>This is the same as calling <code>MatchError::new</code> with a
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<a href="enum.MatchErrorKind.html#variant.HaystackTooLong" title="variant regex_automata::MatchErrorKind::HaystackTooLong"><code>MatchErrorKind::HaystackTooLong</code></a> kind.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.unsupported_anchored" class="method"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1843-1845">source</a><h4 class="code-header">pub fn <a href="#method.unsupported_anchored" class="fn">unsupported_anchored</a>(mode: <a class="enum" href="enum.Anchored.html" title="enum regex_automata::Anchored">Anchored</a>) -> <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h4></section></summary><div class="docblock"><p>Create a new “unsupported anchored” error. This occurs when the caller
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requests a search with an anchor mode that is not supported by the
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regex engine.</p>
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<p>This is the same as calling <code>MatchError::new</code> with a
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<a href="enum.MatchErrorKind.html#variant.UnsupportedAnchored" title="variant regex_automata::MatchErrorKind::UnsupportedAnchored"><code>MatchErrorKind::UnsupportedAnchored</code></a> kind.</p>
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</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#impl-Clone-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&self) -> <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.80.0/src/core/clone.rs.html#169">source</a></span><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#impl-Debug-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.80.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.80.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Display-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1900-1933">source</a><a href="#impl-Display-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt-1" class="method trait-impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1901-1932">source</a><a href="#method.fmt-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Display.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.80.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.80.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Error-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1898">source</a><a href="#impl-Error-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html" title="trait core::error::Error">Error</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.source" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.30.0">1.30.0</span> · <a class="src" href="https://doc.rust-lang.org/1.80.0/src/core/error.rs.html#84">source</a></span><a href="#method.source" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.source" class="fn">source</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&(dyn <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html" title="trait core::error::Error">Error</a> + 'static)></h4></section></summary><div class='docblock'>The lower-level source of this error, if any. <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.source">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.description" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.80.0/src/core/error.rs.html#110">source</a></span><a href="#method.description" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.description" class="fn">description</a>(&self) -> &<a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a></h4></section></summary><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 1.42.0: use the Display impl or to_string()</span></div></span><div class='docblock'> <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.description">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.cause" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.80.0/src/core/error.rs.html#120">source</a></span><a href="#method.cause" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.cause" class="fn">cause</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&dyn <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html" title="trait core::error::Error">Error</a>></h4></section></summary><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated since 1.33.0: replaced by Error::source, which can support downcasting</span></div></span></details><details class="toggle method-toggle" open><summary><section id="method.provide" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/error.rs.html#184">source</a><a href="#method.provide" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.provide" class="fn">provide</a><'a>(&'a self, request: &mut <a class="struct" href="https://doc.rust-lang.org/1.80.0/core/error/struct.Request.html" title="struct core::error::Request">Request</a><'a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>error_generic_member_access</code>)</span></div></span><div class='docblock'>Provides type based access to context intended for error reports. <a href="https://doc.rust-lang.org/1.80.0/core/error/trait.Error.html#method.provide">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-PartialEq-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#impl-PartialEq-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#method.eq" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.PartialEq.html#tymethod.eq" class="fn">eq</a>(&self, other: &<a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used
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by <code>==</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.80.0/src/core/cmp.rs.html#263">source</a></span><a href="#method.ne" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.PartialEq.html#method.ne" class="fn">ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&Rhs</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
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sufficient, and should not be overridden without very good reason.</div></details></div></details><section id="impl-Eq-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#impl-Eq-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section><section id="impl-StructuralPartialEq-for-MatchError" class="impl"><a class="src rightside" href="../src/regex_automata/util/search.rs.html#1782">source</a><a href="#impl-StructuralPartialEq-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.StructuralPartialEq.html" title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-Freeze-for-MatchError" class="impl"><a href="#impl-Freeze-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section><section id="impl-RefUnwindSafe-for-MatchError" class="impl"><a href="#impl-RefUnwindSafe-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section><section id="impl-Send-for-MatchError" class="impl"><a href="#impl-Send-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section><section id="impl-Sync-for-MatchError" class="impl"><a href="#impl-Sync-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section><section id="impl-Unpin-for-MatchError" class="impl"><a href="#impl-Unpin-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section><section id="impl-UnwindSafe-for-MatchError" class="impl"><a href="#impl-UnwindSafe-for-MatchError" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.MatchError.html" title="struct regex_automata::MatchError">MatchError</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.80.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.80.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.80.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#765">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><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 class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#768">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
|
||
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#748-750">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#758">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html#tymethod.into" 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><a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><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-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
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T: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToString-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/string.rs.html#2552">source</a><a href="#impl-ToString-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.80.0/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T<div class="where">where
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T: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.to_string" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/alloc/string.rs.html#2558">source</a><a href="#method.to_string" class="anchor">§</a><h4 class="code-header">default fn <a href="https://doc.rust-lang.org/1.80.0/alloc/string/trait.ToString.html#tymethod.to_string" class="fn">to_string</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.80.0/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></h4></section></summary><div class='docblock'>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/1.80.0/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#805-807">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></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 href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#812">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/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="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#790-792">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></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 href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.80.0/src/core/convert/mod.rs.html#797">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/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></body></html> |