<!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="A set of look-around assertions."><title>LookSet in regex_syntax::hir - 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><linkrel="stylesheet"href="../../static.files/normalize-76eba96aa4d2e634.css"><linkrel="stylesheet"href="../../static.files/rustdoc-dd39b87e5fcfba68.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="1.80.0 (051478957 2024-07-21)"data-channel="1.80.0"data-search-js="search-d52510db62a78183.js"data-settings-js="settings-4313503d2e1961c2.js"><scriptsrc="../../static.files/storage-118b08c4c78b968e.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../static.files/main-20a3ad099b048cf2.js"></script><noscript><linkrel="stylesheet"href="../../static.files/noscript-df360f571f6edeae.css"></noscript><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 struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle"title="show sidebar"></button></nav><navclass="sidebar"><divclass="sidebar-crate"><h2><ahref="../../regex_syntax/index.html">regex_syntax</a><spanclass="version">0.8.4</span></h2></div><h2class="location"><ahref="#">LookSet</a></h2><divclass="sidebar-elems"><section><h3><ahref="#fields">Fields</a></h3><ulclass="block structfield"><li><ahref="#structfield.bits">bits</a></li></ul><h3><ahref="#implementations">Methods</a></h3><ulclass="block method"><li><ahref="#method.contains">contains</a></li><li><ahref="#method.contains_anchor">contains_anchor</a></li><li><ahref="#method.contains_anchor_crlf">contains_anchor_crlf</a></li><li><ahref="#method.contains_anchor_haystack">contains_anchor_haystack</a></li><li><ahref="#method.contains_anchor_lf">contains_anchor_lf</a></li><li><ahref="#method.contains_anchor_line">contains_anchor_line</a></li><li><ahref="#method.contains_word">contains_word</a></li><li><ahref="#method.contains_word_ascii">contains_word_ascii</a></li><li><ahref="#method.contains_word_unicode">contains_word_unicode</a></li><li><ahref="#method.empty">empty</a></li><li><ahref="#method.full">full</a></li><li><ahref="#method.insert">insert</a></li><li><ahref="#method.intersect">intersect</a></li><li><ahref="#method.is_empty">is_empty</a></li><li><ahref="#method.iter">iter</a></li><li><ahref="#method.len">len</a></li><li><ahref="#method.read_repr">read_repr</a></li><li><ahref="#method.remove">remove</a></li><li><ahref="#method.set_insert">set_insert</a></li><li><ahref="#method.set_intersect">set_intersect</a></li><li><ahref="#method.set_remove">set_remove</a></li><li><ahref="#method.set_subtract">set_subtract</a></li><li><ahref="#method.set_union">set_union</a></li><li><ahref="#method.singleton">singleton</a></li><li><ahref="#method.subtract">subtract</a></li><li><ahref="#method.union">union</a></li><li><ahref="#method.write_repr">write_repr</a></li></ul><h3><ahref="#trait-implementations">Trait Implementations</a></h3><ulclass="block trait-implementation"><li><ahref="#impl-Clone-for-LookSet">Clone</a></li><li><ahref="#impl-Copy-for-LookSet">Copy</a></li><li><ahre
}</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>A set of look-around assertions.</p>
<p>This is useful for efficiently tracking look-around assertions. For
example, an <ahref="struct.Hir.html"title="struct regex_syntax::hir::Hir"><code>Hir</code></a> provides properties that return <code>LookSet</code>s.</p>
</div></details><h2id="fields"class="fields section-header">Fields<ahref="#fields"class="anchor">§</a></h2><spanid="structfield.bits"class="structfield section-header"><ahref="#structfield.bits"class="anchor field">§</a><code>bits: <aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.u32.html">u32</a></code></span><divclass="docblock"><p>The underlying representation this set is exposed to make it possible
</div><h2id="implementations"class="section-header">Implementations<ahref="#implementations"class="anchor">§</a></h2><divid="implementations-list"><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2678-2898">source</a><ahref="#impl-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.empty"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2681-2683">source</a><h4class="code-header">pub fn <ahref="#method.empty"class="fn">empty</a>() -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Create an empty set of look-around assertions.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.full"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2689-2691">source</a><h4class="code-header">pub fn <ahref="#method.full"class="fn">full</a>() -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Create a full set of look-around assertions.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.len"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2704-2708">source</a><h4class="code-header">pub fn <ahref="#method.len"class="fn">len</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a></h4></section></summary><divclass="docblock"><p>Returns the total number of look-around assertions in this set.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.is_empty"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2712-2714">source</a><h4class="code-header">pub fn <ahref="#method.is_empty"class="fn">is_empty</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set is empty.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2719-2721">source</a><h4class="code-header">pub fn <ahref="#method.contains"class="fn">contains</a>(self, look: <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a>) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if the given look-around assertion is in this
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_anchor"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2726-2728">source</a><h4class="code-header">pub fn <ahref="#method.contains_anchor"class="fn">contains_anchor</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any anchor assertions.
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_anchor_haystack"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2733-2735">source</a><h4class="code-header">pub fn <ahref="#method.contains_anchor_haystack"class="fn">contains_anchor_haystack</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any “start/end of
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_anchor_line"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2741-2746">source</a><h4class="code-header">pub fn <ahref="#method.contains_anchor_line"class="fn">contains_anchor_line</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any “start/end of line”
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_anchor_lf"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2752-2754">source</a><h4class="code-header">pub fn <ahref="#method.contains_anchor_lf"class="fn">contains_anchor_lf</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any “start/end of line”
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_anchor_crlf"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2760-2762">source</a><h4class="code-header">pub fn <ahref="#method.contains_anchor_crlf"class="fn">contains_anchor_crlf</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any “start/end of line”
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_word"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2768-2770">source</a><h4class="code-header">pub fn <ahref="#method.contains_word"class="fn">contains_word</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any word boundary or
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_word_unicode"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2775-2782">source</a><h4class="code-header">pub fn <ahref="#method.contains_word_unicode"class="fn">contains_word_unicode</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any Unicode word boundary
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.contains_word_ascii"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2787-2794">source</a><h4class="code-header">pub fn <ahref="#method.contains_word_ascii"class="fn">contains_word_ascii</a>(self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><divclass="docblock"><p>Returns true if and only if this set contains any ASCII word boundary
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.iter"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2798-2800">source</a><h4class="code-header">pub fn <ahref="#method.iter"class="fn">iter</a>(self) -><aclass="struct"href="struct.LookSetIter.html"title="struct regex_syntax::hir::LookSetIter">LookSetIter</a><ahref="#"class="tooltip"data-notable-ty="LookSetIter">ⓘ</a></h4></section></summary><divclass="docblock"><p>Returns an iterator over all of the look-around assertions in this set.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.insert"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2806-2808">source</a><h4class="code-header">pub fn <ahref="#method.insert"class="fn">insert</a>(self, look: <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a>) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Return a new set that is equivalent to the original, but with the given
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.set_insert"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2813-2815">source</a><h4class="code-header">pub fn <ahref="#method.set_insert"class="fn">set_insert</a>(&mut self, look: <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a>)</h4></section></summary><divclass="docblock"><p>Updates this set in place with the result of inserting the given
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.remove"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2821-2823">source</a><h4class="code-header">pub fn <ahref="#method.remove"class="fn">remove</a>(self, look: <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a>) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Return a new set that is equivalent to the original, but with the given
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.set_remove"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2828-2830">source</a><h4class="code-header">pub fn <ahref="#method.set_remove"class="fn">set_remove</a>(&mut self, look: <aclass="enum"href="enum.Look.html"title="enum regex_syntax::hir::Look">Look</a>)</h4></section></summary><divclass="docblock"><p>Updates this set in place with the result of removing the given
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.subtract"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2835-2837">source</a><h4class="code-header">pub fn <ahref="#method.subtract"class="fn">subtract</a>(self, other: <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a>) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Returns a new set that is the result of subtracting the given set from
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.set_subtract"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2842-2844">source</a><h4class="code-header">pub fn <ahref="#method.set_subtract"class="fn">set_subtract</a>(&mut self, other: <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a>)</h4></section></summary><divclass="docblock"><p>Updates this set in place with the result of subtracting the given set
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.union"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2848-2850">source</a><h4class="code-header">pub fn <ahref="#method.union"class="fn">union</a>(self, other: <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a>) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Returns a new set that is the union of this and the one given.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.set_union"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2855-2857">source</a><h4class="code-header">pub fn <ahref="#method.set_union"class="fn">set_union</a>(&mut self, other: <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a>)</h4></section></summary><divclass="docblock"><p>Updates this set in place with the result of unioning it with the one
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.intersect"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2861-2863">source</a><h4class="code-header">pub fn <ahref="#method.intersect"class="fn">intersect</a>(self, other: <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a>) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Returns a new set that is the intersection of this and the one given.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.set_intersect"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2868-2870">source</a><h4class="code-header">pub fn <ahref="#method.set_intersect"class="fn">set_intersect</a>(&mut self, other: <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a>)</h4></section></summary><divclass="docblock"><p>Updates this set in place with the result of intersecting it with the
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.read_repr"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2879-2882">source</a><h4class="code-header">pub fn <ahref="#method.read_repr"class="fn">read_repr</a>(slice: &[<aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.u8.html">u8</a>]) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass="docblock"><p>Return a <code>LookSet</code> from the slice given as a native endian 32-bit
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.write_repr"class="method"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2891-2897">source</a><h4class="code-header">pub fn <ahref="#method.write_repr"class="fn">write_repr</a>(self, slice: &mut [<aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.u8.html">u8</a>])</h4></section></summary><divclass="docblock"><p>Write a <code>LookSet</code> as a native endian 32-bit integer to the beginning
</div></details></div></details></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-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2664">source</a><ahref="#impl-Clone-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</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/hir/mod.rs.html#2664">source</a><ahref="#method.clone"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/clone/trait.Clone.html#tymethod.clone"class="fn">clone</a>(&self) -><aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><divclass='docblock'>Returns a copy of the value. <ahref="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/core/clone/trait.Clone.html#method.clone_from"class="fn">clone_from</a>(&mut self, source: <aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&Self</a>)</h4></section></summary><divclass='docblock'>Performs copy-assignment from <code>source</code>. <ahref="https://doc.rust-lang.org/1.80.0/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-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2900-2910">source</a><ahref="#impl-Debug-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><divclass="impl-items"><detailsclass="toggle method-toggle"open><summary><sectionid="method.fmt"class="method trait-impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2901-2909">source</a><ahref="#method.fmt"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html#tymethod.fmt"class="fn">fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/1.80.0/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a><'_>) -><aclass="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><divclass='docblock'>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/1.80.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><detailsclass="toggle implementors-toggle"open><summary><sectionid="impl-Default-for-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2664">source</a><ahref="#impl-Default-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/defaul
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/1.80.0/src/core/cmp.rs.html#263">source</a></span><ahref="#method.ne"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/cmp/trait.PartialEq.html#method.ne"class="fn">ne</a>(&self, other: <aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&Rhs</a>) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/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-Copy-for-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2664">source</a><ahref="#impl-Copy-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Copy.html"title="trait core::marker::Copy">Copy</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-Eq-for-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2664">source</a><ahref="#impl-Eq-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/cmp/trait.Eq.html"title="trait core::cmp::Eq">Eq</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-StructuralPartialEq-for-LookSet"class="impl"><aclass="src rightside"href="../../src/regex_syntax/hir/mod.rs.html#2664">source</a><ahref="#impl-StructuralPartialEq-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.StructuralPartialEq.html"title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</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-Freeze-for-LookSet"class="impl"><ahref="#impl-Freeze-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Freeze.html"title="trait core::marker::Freeze">Freeze</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-RefUnwindSafe-for-LookSet"class="impl"><ahref="#impl-RefUnwindSafe-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="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 <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-Send-for-LookSet"class="impl"><ahref="#impl-Send-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Send.html"title="trait core::marker::Send">Send</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-Sync-for-LookSet"class="impl"><ahref="#impl-Sync-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sync.html"title="trait core::marker::Sync">Sync</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-Unpin-for-LookSet"class="impl"><ahref="#impl-Unpin-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Unpin.html"title="trait core::marker::Unpin">Unpin</a> for <aclass="struct"href="struct.LookSet.html"title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><sectionid="impl-UnwindSafe-for-LookSet"class="impl"><ahref="#impl-UnwindSafe-for-LookSet"class="anchor">§</a><h3class="code-header">impl <aclass="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 <aclass="struct"href="struct.LookSet.html"title="structregex_syntax::hir::L
T: 'static + ?<aclass="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><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/1.80.0/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/1.80.0/core/any/trait.Any.html#tymethod.type_id"class="fn">type_id</a>(&self) -><aclass="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><divclass='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/src/core/borrow.rs.html#210">source</a><ahref="#method.borrow"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/borrow/trait.Borrow.html#tymethod.borrow"class="fn">borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&T</a></h4></section></summary><divclass='docblock'>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut"class="fn">borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/1.80.0/std/primitive.reference.html">&mut T</a></h4></section></summary><divclass='docblock'>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/1.80.0/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/1.80.0/src/core/convert/mod.rs.html#765">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/1.80.0/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/1.80.0/src/core/convert/mod.rs.html#768">source</a><ahref="#method.from"class="anchor">§</a><h4class="code-header">fn <ahref="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><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/1.80.0/src/core/convert/mod.rs.html#748-750">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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/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/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into"class="fn">clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/1.80.0/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/1.80.0/alloc/borrow/trait.ToOwned.html#method.clone_into">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/1.80.0/src/core/convert/mod.rs.html#805-807">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/1.80.0/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/1.80.0/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"class="associatedtype trait-impl"><ahref="#associatedtype.Error"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#associatedtype.Error"class="associatedtype">Error</a> = <aclass="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><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/1.80.0/src/core/convert/mod.rs.html#812">source</a><ahref="#method.try_from"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html#tymethod.try_from"class="fn">try_from</a>(value: U) -><aclass="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 <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="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><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/1.80.0/src/core/convert/mod.rs.html#790-792">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/1.80.0/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/1.80.0/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-1"class="associatedtype trait-impl"><ahref="#associatedtype.Error-1"class="anchor">§</a><h4class="code-header">type <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#associatedtype.Error"class="associatedtype">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="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><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/1.80.0/src/core/convert/mod.rs.html#797">source</a><ahref="#method.try_into"class="anchor">§</a><h4class="code-header">fn <ahref="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryInto.html#tymethod.try_into"class="fn">try_into</a>(self) -><aclass="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 <aclass="trait"href="https://doc.rust-lang.org/1.80.0/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="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><divclass='docblock'>Performs the conversion.</div></details></div></details></div><scripttype="text/json"id="notable-traits-data">{"LookSetIter":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.LookSetIter.html\" title=\"struct regex_syntax::hir::LookSetIter\">LookSetIter</a></code></h3><pre><code><div class=\"where\">impl <a class=\"trait\" href=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.LookSetIter.html\" title=\"struct regex_syntax::hir::LookSetIter\">LookSetIter</a></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"enum\" href=\"enum.Look.html\" title=\"enum regex_syntax::hir::Look\">Look</a>;</div>"}</script></section></div></main></body></html>
