<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="The type of an error that occurred while building an AST."><title>ErrorKind in regex_syntax::ast - Rust</title><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><linkrel="preload"as="font"type="font/woff2"crossoriginhref="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><linkrel="stylesheet"href="../../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../../static.files/rustdoc-5bc39a1768837dd0.css"><metaname="rustdoc-vars"data-root-path="../../"data-static-root-path="../../static.files/"data-current-crate="regex_syntax"data-themes=""data-resource-suffix=""data-rustdoc-version="1.77.1 (7cf61ebde 2024-03-27)"data-channel="1.77.1"data-search-js="search-dd67cee4cfa65049.js"data-settings-js="settings-4313503d2e1961c2.js"><scriptsrc="../../static.files/storage-4c98445ec4002617.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../static.files/main-48f368f3872407c8.js"></script><noscript><linkrel="stylesheet"href="../../static.files/noscript-04d5337699b92874.css"></noscript><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-32x32-422f7d1d52889060.png"><linkrel="icon"type="image/svg+xml"href="../../static.files/favicon-2c020d218678b618.svg"></head><bodyclass="rustdoc enum"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle"title="show sidebar"></button></nav><navclass="sidebar"><divclass="sidebar-crate"><h2><ahref="../../regex_syntax/index.html">regex_syntax</a><spanclass="version">0.8.3</span></h2></div><h2class="location"><ahref="#">ErrorKind</a></h2><divclass="sidebar-elems"><section><h3><ahref="#variants">Variants</a></h3><ulclass="block variant"><li><ahref="#variant.CaptureLimitExceeded">CaptureLimitExceeded</a></li><li><ahref="#variant.ClassEscapeInvalid">ClassEscapeInvalid</a></li><li><ahref="#variant.ClassRangeInvalid">ClassRangeInvalid</a></li><li><ahref="#variant.ClassRangeLiteral">ClassRangeLiteral</a></li><li><ahref="#variant.ClassUnclosed">ClassUnclosed</a></li><li><ahref="#variant.DecimalEmpty">DecimalEmpty</a></li><li><ahref="#variant.DecimalInvalid">DecimalInvalid</a></li><li><ahref="#variant.EscapeHexEmpty">EscapeHexEmpty</a></li><li><ahref="#variant.EscapeHexInvalid">EscapeHexInvalid</a></li><li><ahref="#variant.EscapeHexInvalidDigit">EscapeHexInvalidDigit</a></li><li><ahref="#variant.EscapeUnexpectedEof">EscapeUnexpectedEof</a></li><li><ahref="#variant.EscapeUnrecognized">EscapeUnrecognized</a></li><li><ahref="#variant.FlagDanglingNegation">FlagDanglingNegation</a></li><li><ahref="#variant.FlagDuplicate">FlagDuplicate</a></li><li><ahref="#variant.FlagRepeatedNegation">FlagRepeatedNegation</a></li><li><ahref="#variant.FlagUnexpectedEof">FlagUnexpectedEof</a></li><li><ahref="#variant.FlagUnrecognized">FlagUnrecognized</a></li><li><ahref="#variant.GroupNameDuplicate">GroupNameDuplicate</a></li><li><ahref="#variant.GroupNameEmpty">GroupNameEmpty</a></li><li><ahref="#variant.GroupNameInvalid">GroupNameInvalid</a></li><li><ahref="#variant.GroupNameUnexpectedEof">GroupNameUnexpectedEof</a></li><li><ahref="#variant.GroupUnclosed">GroupUnclosed</a></li><li><
<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../../regex_syntax/all.html"title="show sidebar"></a></div><inputclass="search-input"name="search"aria-label="Run search in the documentation"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"><divid="help-button"tabindex="-1"><ahref="../../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Enum <ahref="../index.html">regex_syntax</a>::<wbr><ahref="index.html">ast</a>::<wbr><aclass="enum"href="#">ErrorKind</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../../src/regex_syntax/ast/mod.rs.html#75-190">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code><divclass="code-attribute">#[non_exhaustive]</div>pub enum ErrorKind {
</details>}</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>The type of an error that occurred while building an AST.</p>
<p>This error type is marked as <code>non_exhaustive</code>. This means that adding a
new variant is not considered a breaking change.</p>
</div></details><h2id="variants"class="variants section-header">Variants (Non-exhaustive)<ahref="#variants"class="anchor">§</a></h2><detailsclass="toggle non-exhaustive"><summaryclass="hideme"><span>This enum is marked as non-exhaustive</span></summary><divclass="docblock">Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.</div></details><divclass="variants"><sectionid="variant.CaptureLimitExceeded"class="variant"><ahref="#variant.CaptureLimitExceeded"class="anchor">§</a><h3class="code-header">CaptureLimitExceeded</h3></section><divclass="docblock"><p>The capturing group limit was exceeded.</p>
<p>Note that this represents a limit on the total number of capturing
groups in a regex and not necessarily the number of nested capturing
groups. That is, the nest limit can be low and it is still possible for
this error to occur.</p>
</div><sectionid="variant.ClassEscapeInvalid"class="variant"><ahref="#variant.ClassEscapeInvalid"class="anchor">§</a><h3class="code-header">ClassEscapeInvalid</h3></section><divclass="docblock"><p>An invalid escape sequence was found in a character class set.</p>
</div><sectionid="variant.ClassRangeInvalid"class="variant"><ahref="#variant.ClassRangeInvalid"class="anchor">§</a><h3class="code-header">ClassRangeInvalid</h3></section><divclass="docblock"><p>An invalid character class range was found. An invalid range is any
range where the start is greater than the end.</p>
</div><sectionid="variant.ClassRangeLiteral"class="variant"><ahref="#variant.ClassRangeLiteral"class="anchor">§</a><h3class="code-header">ClassRangeLiteral</h3></section><divclass="docblock"><p>An invalid range boundary was found in a character class. Range
boundaries must be a single literal codepoint, but this error indicates
that something else was found, such as a nested class.</p>
</div><sectionid="variant.ClassUnclosed"class="variant"><ahref="#variant.ClassUnclosed"class="anchor">§</a><h3class="code-header">ClassUnclosed</h3></section><divclass="docblock"><p>An opening <code>[</code> was found with no corresponding closing <code>]</code>.</p>
</div><sectionid="variant.DecimalEmpty"class="variant"><ahref="#variant.DecimalEmpty"class="anchor">§</a><h3class="code-header">DecimalEmpty</h3></section><divclass="docblock"><p>Note that this error variant is no longer used. Namely, a decimal
number can only appear as a repetition quantifier. When the number
in a repetition quantifier is empty, then it gets its own specialized
</div><sectionid="variant.DecimalInvalid"class="variant"><ahref="#variant.DecimalInvalid"class="anchor">§</a><h3class="code-header">DecimalInvalid</h3></section><divclass="docblock"><p>An invalid decimal number was given where one was expected.</p>
</div><sectionid="variant.EscapeHexEmpty"class="variant"><ahref="#variant.EscapeHexEmpty"class="anchor">§</a><h3class="code-header">EscapeHexEmpty</h3></section><divclass="docblock"><p>A bracketed hex literal was empty.</p>
</div><sectionid="variant.EscapeHexInvalid"class="variant"><ahref="#variant.EscapeHexInvalid"class="anchor">§</a><h3class="code-header">EscapeHexInvalid</h3></section><divclass="docblock"><p>A bracketed hex literal did not correspond to a Unicode scalar value.</p>
</div><sectionid="variant.EscapeHexInvalidDigit"class="variant"><ahref="#variant.EscapeHexInvalidDigit"class="anchor">§</a><h3class="code-header">EscapeHexInvalidDigit</h3></section><divclass="docblock"><p>An invalid hexadecimal digit was found.</p>
</div><sectionid="variant.EscapeUnexpectedEof"class="variant"><ahref="#variant.EscapeUnexpectedEof"class="anchor">§</a><h3class="code-header">EscapeUnexpectedEof</h3></section><divclass="docblock"><p>EOF was found before an escape sequence was completed.</p>
</div><sectionid="variant.FlagDanglingNegation"class="variant"><ahref="#variant.FlagDanglingNegation"class="anchor">§</a><h3class="code-header">FlagDanglingNegation</h3></section><divclass="docblock"><p>A dangling negation was used when setting flags, e.g., <code>i-</code>.</p>
</div><sectionid="variant.FlagDuplicate"class="variant"><ahref="#variant.FlagDuplicate"class="anchor">§</a><h3class="code-header">FlagDuplicate</h3></section><divclass="sub-variant"id="variant.FlagDuplicate.fields"><h4>Fields</h4><divclass="sub-variant-field"><spanid="variant.FlagDuplicate.field.original"class="section-header"><ahref="#variant.FlagDuplicate.field.original"class="anchor field">§</a><code>original: <aclass="struct"href="struct.Span.html"title="struct regex_syntax::ast::Span">Span</a></code></span><divclass="docblock"><p>The position of the original flag. The error position
points to the duplicate flag.</p>
</div></div></div><divclass="docblock"><p>A flag was used twice, e.g., <code>i-i</code>.</p>
</div><sectionid="variant.FlagRepeatedNegation"class="variant"><ahref="#variant.FlagRepeatedNegation"class="anchor">§</a><h3class="code-header">FlagRepeatedNegation</h3></section><divclass="sub-variant"id="variant.FlagRepeatedNegation.fields"><h4>Fields</h4><divclass="sub-variant-field"><spanid="variant.FlagRepeatedNegation.field.original"class="section-header"><ahref="#variant.FlagRepeatedNegation.field.original"class="anchor field">§</a><code>original: <aclass="struct"href="struct.Span.html"title="struct regex_syntax::ast::Span">Span</a></code></span><divclass="docblock"><p>The position of the original negation operator. The error position
points to the duplicate negation operator.</p>
</div></div></div><divclass="docblock"><p>The negation operator was used twice, e.g., <code>-i-s</code>.</p>
</div><sectionid="variant.FlagUnexpectedEof"class="variant"><ahref="#variant.FlagUnexpectedEof"class="anchor">§</a><h3class="code-header">FlagUnexpectedEof</h3></section><divclass="docblock"><p>Expected a flag but got EOF, e.g., <code>(?</code>.</p>
</div><sectionid="variant.GroupNameDuplicate"class="variant"><ahref="#variant.GroupNameDuplicate"class="anchor">§</a><h3class="code-header">GroupNameDuplicate</h3></section><divclass="sub-variant"id="variant.GroupNameDuplicate.fields"><h4>Fields</h4><divclass="sub-variant-field"><spanid="variant.GroupNameDuplicate.field.original"class="section-header"><ahref="#variant.GroupNameDuplicate.field.original"class="anchor field">§</a><code>original: <aclass="struct"href="struct.Span.html"title="struct regex_syntax::ast::Span">Span</a></code></span><divclass="docblock"><p>The position of the initial occurrence of the capture name. The
error position itself points to the duplicate occurrence.</p>
</div></div></div><divclass="docblock"><p>A duplicate capture name was found.</p>
</div><sectionid="variant.GroupNameEmpty"class="variant"><ahref="#variant.GroupNameEmpty"class="anchor">§</a><h3class="code-header">GroupNameEmpty</h3></section><divclass="docblock"><p>A capture group name is empty, e.g., <code>(?P<>abc)</code>.</p>
</div><sectionid="variant.GroupNameInvalid"class="variant"><ahref="#variant.GroupNameInvalid"class="anchor">§</a><h3class="code-header">GroupNameInvalid</h3></section><divclass="docblock"><p>An invalid character was seen for a capture group name. This includes
errors where the first character is a digit (even though subsequent
characters are allowed to be digits).</p>
</div><sectionid="variant.GroupNameUnexpectedEof"class="variant"><ahref="#variant.GroupNameUnexpectedEof"class="anchor">§</a><h3class="code-header">GroupNameUnexpectedEof</h3></section><divclass="docblock"><p>A closing <code>></code> could not be found for a capture group name.</p>
</div><sectionid="variant.NestLimitExceeded"class="variant"><ahref="#variant.NestLimitExceeded"class="anchor">§</a><h3class="code-header">NestLimitExceeded(<aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.u32.html">u32</a>)</h3></section><divclass="docblock"><p>The nest limit was exceeded. The limit stored here is the limit
</div><sectionid="variant.RepetitionCountInvalid"class="variant"><ahref="#variant.RepetitionCountInvalid"class="anchor">§</a><h3class="code-header">RepetitionCountInvalid</h3></section><divclass="docblock"><p>The range provided in a counted repetition operator is invalid. The
range is invalid if the start is greater than the end.</p>
</div><sectionid="variant.RepetitionCountDecimalEmpty"class="variant"><ahref="#variant.RepetitionCountDecimalEmpty"class="anchor">§</a><h3class="code-header">RepetitionCountDecimalEmpty</h3></section><divclass="docblock"><p>An opening <code>{</code> was not followed by a valid decimal value.
For example, <code>x{}</code> or <code>x{]}</code> would fail.</p>
</div><sectionid="variant.RepetitionCountUnclosed"class="variant"><ahref="#variant.RepetitionCountUnclosed"class="anchor">§</a><h3class="code-header">RepetitionCountUnclosed</h3></section><divclass="docblock"><p>An opening <code>{</code> was found with no corresponding closing <code>}</code>.</p>
</div><sectionid="variant.RepetitionMissing"class="variant"><ahref="#variant.RepetitionMissing"class="anchor">§</a><h3class="code-header">RepetitionMissing</h3></section><divclass="docblock"><p>A repetition operator was applied to a missing sub-expression. This
occurs, for example, in the regex consisting of just a <code>*</code> or even
<code>(?i)*</code>. It is, however, possible to create a repetition operating on
an empty sub-expression. For example, <code>()*</code> is still considered valid.</p>
</div><sectionid="variant.SpecialWordBoundaryUnclosed"class="variant"><ahref="#variant.SpecialWordBoundaryUnclosed"class="anchor">§</a><h3class="code-header">SpecialWordBoundaryUnclosed</h3></section><divclass="docblock"><p>The special word boundary syntax, <code>\b{something}</code>, was used, but
either EOF without <code>}</code> was seen, or an invalid character in the
braces was seen.</p>
</div><sectionid="variant.SpecialWordBoundaryUnrecognized"class="variant"><ahref="#variant.SpecialWordBoundaryUnrecognized"class="anchor">§</a><h3class="code-header">SpecialWordBoundaryUnrecognized</h3></section><divclass="docblock"><p>The special word boundary syntax, <code>\b{something}</code>, was used, but
<code>something</code> was not recognized as a valid word boundary kind.</p>
</div><sectionid="variant.SpecialWordOrRepetitionUnexpectedEof"class="variant"><ahref="#variant.SpecialWordOrRepetitionUnexpectedEof"class="anchor">§</a><h3class="code-header">SpecialWordOrRepetitionUnexpectedEof</h3></section><divclass="docblock"><p>The syntax <code>\b{</code> was observed, but afterwards the end of the pattern
was observed without being able to tell whether it was meant to be a
bounded repetition on the <code>\b</code> or the beginning of a special word
boundary assertion.</p>
</div><sectionid="variant.UnicodeClassInvalid"class="variant"><ahref="#variant.UnicodeClassInvalid"class="anchor">§</a><h3class="code-header">UnicodeClassInvalid</h3></section><divclass="docblock"><p>The Unicode class is not valid. This typically occurs when a <code>\p</code> is
followed by something other than a <code>{</code>.</p>
</div><sectionid="variant.UnsupportedBackreference"class="variant"><ahref="#variant.UnsupportedBackreference"class="anchor">§</a><h3class="code-header">UnsupportedBackreference</h3></section><divclass="docblock"><p>When octal support is disabled, this error is produced when an octal
escape is used. The octal escape is assumed to be an invocation of
a backreference, which is the common case.</p>
</div><sectionid="variant.UnsupportedLookAround"class="variant"><ahref="#variant.UnsupportedLookAround"class="anchor">§</a><h3class="code-header">UnsupportedLookAround</h3></section><divclass="docblock"><p>When syntax similar to PCRE’s look-around is used, this error is
returned. Some example syntaxes that are rejected include, but are
not necessarily limited to, <code>(?=re)</code>, <code>(?!re)</code>, <code>(?<=re)</code> and
<code>(?<!re)</code>. Note that all of these syntaxes are otherwise invalid; this
</div></div><h2id="trait-implementations"class="section-header">Trait Implementations<ahref="#trait-implementations"class="anchor">§</a></h2><divid="trait-implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Clone-for-ErrorKind"class="impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#73">source</a><ahref="#impl-Clone-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone"class="method trait-impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#73">source</a><ahref="#method.clone"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/clone/trait.Clone.html#tymethod.clone"class="fn">clone</a>(&self) -><aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h4></section></summary><divclass='docblock'>Returns a copy of the value. <ahref="https://doc.rust-lang.org/1.77.1/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_from"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="src"href="https://doc.rust-lang.org/1.77.1/src/core/clone.rs.html#169">source</a></span><ahref="#method.clone_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/clone/trait.Clone.html#method.clone_from"class="fn">clone_from</a>(&mut self, source: <aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&Self</a>)</h4></section></summary><divclass='docblock'>Performs copy-assignment from <code>source</code>. <ahref="https://doc.rust-lang.org/1.77.1/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Debug-for-ErrorKind"class="impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#73">source</a><ahref="#impl-Debug-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.fmt-1"class="method trait-impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#73">source</a><ahref="#method.fmt-1"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/fmt/trait.Debug.html#tymethod.fmt"class="fn">fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/1.77.1/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a><'_>) -><aclass="type"href="https://doc.rust-lang.org/1.77.1/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></h4></section></summary><divclass='docblock'>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/1.77.1/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Display-for-ErrorKind"class="impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#201-311">source</a><ahref="#impl-Display-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/fmt/trait.Display.html"title="
by <code>==</code>.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.ne"class="method trait-impl"><spanclass="rightside"><spanclass="since"title="Stable since Rust version 1.0.0">1.0.0</span> · <aclass="src"href="https://doc.rust-lang.org/1.77.1/src/core/cmp.rs.html#242">source</a></span><ahref="#method.ne"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/cmp/trait.PartialEq.html#method.ne"class="fn">ne</a>(&self, other: <aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&Rhs</a>) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.bool.html">bool</a></h4></section></summary><divclass='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
sufficient, and should not be overridden without very good reason.</div></details></div></details><sectionid="impl-Eq-for-ErrorKind"class="impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#73">source</a><ahref="#impl-Eq-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/cmp/trait.Eq.html"title="trait core::cmp::Eq">Eq</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section><sectionid="impl-StructuralPartialEq-for-ErrorKind"class="impl"><aclass="src rightside"href="../../src/regex_syntax/ast/mod.rs.html#73">source</a><ahref="#impl-StructuralPartialEq-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.StructuralPartialEq.html"title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section></div><h2id="synthetic-implementations"class="section-header">Auto Trait Implementations<ahref="#synthetic-implementations"class="anchor">§</a></h2><divid="synthetic-implementations-list"><sectionid="impl-RefUnwindSafe-for-ErrorKind"class="impl"><ahref="#impl-RefUnwindSafe-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/panic/unwind_safe/trait.RefUnwindSafe.html"title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section><sectionid="impl-Send-for-ErrorKind"class="impl"><ahref="#impl-Send-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section><sectionid="impl-Sync-for-ErrorKind"class="impl"><ahref="#impl-Sync-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section><sectionid="impl-Unpin-for-ErrorKind"class="impl"><ahref="#impl-Unpin-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section><sectionid="impl-UnwindSafe-for-ErrorKind"class="impl"><ahref="#impl-UnwindSafe-for-ErrorKind"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/panic/unwind_safe/trait.UnwindSafe.html"title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <aclass="enum"href="enum.ErrorKind.html"title="enum regex_syntax::ast::ErrorKind">ErrorKind</a></h3></section></div><h2id="blanket-implementations"class="section-header">Blanket Implementations<ahref="#blanket-implementations"class="anchor">§</a></h2><divid="blanket-implementations-list"><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Any-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/any.rs.html#140">source</a><ahref="#impl-Any-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/any/trait.Any.html"title="trait core::any::Any">Any</a> for T<divclass="where">where
T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.type_id"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/any.rs.html#141">source</a><ahref="#method.type_id"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/any/trait.Any.html#tymethod.type_id"class="fn">type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/1.77.1/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></h4></section></summary><divclass='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/1.77.1/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Borrow%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/borrow.rs.html#208">source</a><ahref="#impl-Borrow%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T<divclass="where">where
T: ?<aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/borrow.rs.html#210">source</a><ahref="#method.borrow"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/borrow/trait.Borrow.html#tymethod.borrow"class="fn">borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&T</a></h4></section></summary><divclass='docblock'>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.77.1/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-BorrowMut%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/borrow.rs.html#216">source</a><ahref="#impl-BorrowMut%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<divclass="where">where
T: ?<aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.borrow_mut"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/borrow.rs.html#217">source</a><ahref="#method.borrow_mut"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut"class="fn">borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&mut T</a></h4></section></summary><divclass='docblock'>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.77.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-From%3CT%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#764">source</a><ahref="#impl-From%3CT%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for T</h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#767">source</a><ahref="#method.from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.From.html#tymethod.from"class="fn">from</a>(t: T) -> T</h4></section></summary><divclass="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Into%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#747-749">source</a><ahref="#impl-Into%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><U> for T<divclass="where">where
<code><ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.From.html"title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-ToOwned-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/alloc/borrow.rs.html#83-85">source</a><ahref="#impl-ToOwned-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.1/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T<divclass="where">where
T: <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Owned"class="associatedtype trait-impl"><ahref="#associatedtype.Owned"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.1/alloc/borrow/trait.ToOwned.html#associatedtype.Owned"class="associatedtype">Owned</a> = T</h4></section></summary><divclass='docblock'>The resulting type after obtaining ownership.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.to_owned"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/alloc/borrow.rs.html#88">source</a><ahref="#method.to_owned"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/alloc/borrow/trait.ToOwned.html#tymethod.to_owned"class="fn">to_owned</a>(&self) -> T</h4></section></summary><divclass='docblock'>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/1.77.1/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.clone_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/alloc/borrow.rs.html#92">source</a><ahref="#method.clone_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/1.77.1/std/primitive.reference.html">&mut T</a>)</h4></section></summary><divclass='docblock'>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/1.77.1/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-ToString-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/alloc/string.rs.html#2600">source</a><ahref="#impl-ToString-for-T"class="anchor">§</a><h3class="code-header">impl<T><aclass="trait"href="https://doc.rust-lang.org/1.77.1/alloc/string/trait.ToString.html"title="trait alloc::string::ToString">ToString</a> for T<divclass="where">where
T: <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/fmt/trait.Display.html"title="trait core::fmt::Display">Display</a> + ?<aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.to_string"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/alloc/string.rs.html#2606">source</a><ahref="#method.to_string"class="anchor">§</a><h4class="code-header">default fn <ahref="https://doc.rust-lang.org/1.77.1/alloc/string/trait.ToString.html#tymethod.to_string"class="fn">to_string</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/1.77.1/alloc/string/struct.String.html"title="struct alloc::string::String">String</a></h4></section></summary><divclass='docblock'>Converts the given value to a <code>String</code>. <ahref="https://doc.rust-lang.org/1.77.1/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryFrom%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#804-806">source</a><ahref="#impl-TryFrom%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/1.77.1/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_from"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#811">source</a><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/1.77.1/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-TryInto%3CU%3E-for-T"class="impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#789-791">source</a><ahref="#impl-TryInto%3CU%3E-for-T"class="anchor">§</a><h3class="code-header">impl<T, U><aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T<divclass="where">where
U: <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><divclass="impl-items"><detailsclass="toggle"open><summary><sectionid="associatedtype.Error"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><divclass='docblock'>The type returned in the event of a conversion error.</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.try_into"class="method trait-impl"><aclass="src rightside"href="https://doc.rust-lang.org/1.77.1/src/core/convert/mod.rs.html#796">source</a><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/1.77.1/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="associatedtype"href="https://doc.rust-lang.org/1.77.1/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><divclass='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html>
