| <!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="A set of look-around assertions."><meta name="keywords" content="rust, rustlang, rust-lang, LookSet"><title>LookSet in regex_syntax::hir - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.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">☰</button><a class="sidebar-logo" href="../../regex_syntax/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../regex_syntax/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">LookSet</a></h2><div class="sidebar-elems"><section><h3><a href="#fields">Fields</a></h3><ul class="block"><li><a href="#structfield.bits">bits</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.contains">contains</a></li><li><a href="#method.contains_anchor">contains_anchor</a></li><li><a href="#method.contains_anchor_crlf">contains_anchor_crlf</a></li><li><a href="#method.contains_anchor_haystack">contains_anchor_haystack</a></li><li><a href="#method.contains_anchor_lf">contains_anchor_lf</a></li><li><a href="#method.contains_anchor_line">contains_anchor_line</a></li><li><a href="#method.contains_word">contains_word</a></li><li><a href="#method.contains_word_ascii">contains_word_ascii</a></li><li><a href="#method.contains_word_unicode">contains_word_unicode</a></li><li><a href="#method.empty">empty</a></li><li><a href="#method.full">full</a></li><li><a href="#method.insert">insert</a></li><li><a href="#method.intersect">intersect</a></li><li><a href="#method.is_empty">is_empty</a></li><li><a href="#method.iter">iter</a></li><li><a href="#method.len">len</a></li><li><a href="#method.read_repr">read_repr</a></li><li><a href="#method.remove">remove</a></li><li><a href="#method.set_insert">set_insert</a></li><li><a href="#method.set_intersect">set_intersect</a></li><li><a href="#method.set_remove">set_remove</a></li><li><a href="#method.set_subtract">set_subtract</a></li><li><a href="#method.set_union">set_union</a></li><li><a href="#method.singleton">singleton</a></li><li><a href="#method.subtract">subtract</a></li><li><a href="#method.union">union</a></li><li><a href="#method.write_repr">write_repr</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Clone-for-LookSet">Clone</a></li><li><a href="#impl-Copy-for-LookSet">Copy</a></li><li><a href="#impl-Debug-for-LookSet">Debug</a></li><li><a href="#impl-Default-for-LookSet">Default</a></li><li><a href="#impl-Eq-for-LookSet">Eq</a></li><li><a href="#impl-PartialEq%3CLookSet%3E-for-LookSet">PartialEq<LookSet></a></li><li><a href="#impl-StructuralEq-for-LookSet">StructuralEq</a></li><li><a href="#impl-StructuralPartialEq-for-LookSet">StructuralPartialEq</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-LookSet">RefUnwindSafe</a></li><li><a href="#impl-Send-for-LookSet">Send</a></li><li><a href="#impl-Sync-for-LookSet">Sync</a></li><li><a href="#impl-Unpin-for-LookSet">Unpin</a></li><li><a href="#impl-UnwindSafe-for-LookSet">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-LookSet">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-LookSet">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-LookSet">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-LookSet">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-LookSet">Into<U></a></li><li><a href="#impl-ToOwned-for-LookSet">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-LookSet">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-LookSet">TryInto<U></a></li></ul></section><h2><a href="index.html">In regex_syntax::hir</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../index.html">regex_syntax</a>::<wbr><a href="index.html">hir</a>::<wbr><a class="struct" href="#">LookSet</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../src/regex_syntax/hir/mod.rs.html#2542-2553">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct LookSet { |
| pub bits: u16, |
| }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A set of look-around assertions.</p> |
| <p>This is useful for efficiently tracking look-around assertions. For |
| example, an <a href="struct.Hir.html" title="Hir"><code>Hir</code></a> provides properties that return <code>LookSet</code>s.</p> |
| </div></details><h2 id="fields" class="fields small-section-header">Fields<a href="#fields" class="anchor"></a></h2><span id="structfield.bits" class="structfield small-section-header"><a href="#structfield.bits" class="anchor field"></a><code>bits: u16</code></span><div class="docblock"><p>The underlying representation this set is exposed to make it possible |
| to store it somewhere efficiently. The representation is that |
| of a bitset, where each assertion occupies bit <code>i</code> where <code>i = Look::as_repr()</code>.</p> |
| <p>Note that users of this internal representation must permit the full |
| range of <code>u16</code> values to be represented. For example, even if the |
| current implementation only makes use of the 10 least significant bits, |
| it may use more bits in a future semver compatible release.</p> |
| </div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2555-2764">source</a><a href="#impl-LookSet" class="anchor"></a><h3 class="code-header">impl <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.empty" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2558-2560">source</a><h4 class="code-header">pub fn <a href="#method.empty" class="fnname">empty</a>() -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Create an empty set of look-around assertions.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.full" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2566-2568">source</a><h4 class="code-header">pub fn <a href="#method.full" class="fnname">full</a>() -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Create a full set of look-around assertions.</p> |
| <p>This set contains all possible look-around assertions.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.singleton" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2575-2577">source</a><h4 class="code-header">pub fn <a href="#method.singleton" class="fnname">singleton</a>(look: <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Create a look-around set containing the look-around assertion given.</p> |
| <p>This is a convenience routine for creating an empty set and inserting |
| one look-around assertions.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.len" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2581-2585">source</a><h4 class="code-header">pub fn <a href="#method.len" class="fnname">len</a>(self) -> usize</h4></section></summary><div class="docblock"><p>Returns the total number of look-around assertions in this set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.is_empty" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2589-2591">source</a><h4 class="code-header">pub fn <a href="#method.is_empty" class="fnname">is_empty</a>(self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set is empty.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2596-2598">source</a><h4 class="code-header">pub fn <a href="#method.contains" class="fnname">contains</a>(self, look: <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if the given look-around assertion is in this |
| set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_anchor" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2603-2605">source</a><h4 class="code-header">pub fn <a href="#method.contains_anchor" class="fnname">contains_anchor</a>(&self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any anchor assertions. |
| This includes both “start/end of haystack” and “start/end of line.”</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_anchor_haystack" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2610-2612">source</a><h4 class="code-header">pub fn <a href="#method.contains_anchor_haystack" class="fnname">contains_anchor_haystack</a>(&self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any “start/end of |
| haystack” anchors. This doesn’t include “start/end of line” anchors.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_anchor_line" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2618-2623">source</a><h4 class="code-header">pub fn <a href="#method.contains_anchor_line" class="fnname">contains_anchor_line</a>(&self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any “start/end of line” |
| anchors. This doesn’t include “start/end of haystack” anchors. This |
| includes both <code>\n</code> line anchors and CRLF (<code>\r\n</code>) aware line anchors.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_anchor_lf" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2629-2631">source</a><h4 class="code-header">pub fn <a href="#method.contains_anchor_lf" class="fnname">contains_anchor_lf</a>(&self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any “start/end of line” |
| anchors that only treat <code>\n</code> as line terminators. This does not include |
| haystack anchors or CRLF aware line anchors.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_anchor_crlf" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2637-2639">source</a><h4 class="code-header">pub fn <a href="#method.contains_anchor_crlf" class="fnname">contains_anchor_crlf</a>(&self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any “start/end of line” |
| anchors that are CRLF-aware. This doesn’t include “start/end of |
| haystack” or “start/end of line-feed” anchors.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_word" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2645-2647">source</a><h4 class="code-header">pub fn <a href="#method.contains_word" class="fnname">contains_word</a>(self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any word boundary or |
| negated word boundary assertions. This include both Unicode and ASCII |
| word boundaries.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_word_unicode" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2652-2655">source</a><h4 class="code-header">pub fn <a href="#method.contains_word_unicode" class="fnname">contains_word_unicode</a>(self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any Unicode word boundary |
| or negated Unicode word boundary assertions.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.contains_word_ascii" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2660-2662">source</a><h4 class="code-header">pub fn <a href="#method.contains_word_ascii" class="fnname">contains_word_ascii</a>(self) -> bool</h4></section></summary><div class="docblock"><p>Returns true if and only if this set contains any ASCII word boundary |
| or negated ASCII word boundary assertions.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.iter" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2666-2668">source</a><h4 class="code-header">pub fn <a href="#method.iter" class="fnname">iter</a>(self) -> <a class="struct" href="struct.LookSetIter.html" title="struct regex_syntax::hir::LookSetIter">LookSetIter</a><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.LookSetIter.html" title="struct regex_syntax::hir::LookSetIter">LookSetIter</a></span><code class="content"><span class="where fmt-newline">impl Iterator for <a class="struct" href="struct.LookSetIter.html" title="struct regex_syntax::hir::LookSetIter">LookSetIter</a></span><span class="where fmt-newline"> type <a class="associatedtype">Item</a> = <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>;</span></code></span></span></span></span></h4></section></summary><div class="docblock"><p>Returns an iterator over all of the look-around assertions in this set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.insert" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2674-2676">source</a><h4 class="code-header">pub fn <a href="#method.insert" class="fnname">insert</a>(self, look: <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Return a new set that is equivalent to the original, but with the given |
| assertion added to it. If the assertion is already in the set, then the |
| returned set is equivalent to the original.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.set_insert" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2681-2683">source</a><h4 class="code-header">pub fn <a href="#method.set_insert" class="fnname">set_insert</a>(&mut self, look: <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>)</h4></section></summary><div class="docblock"><p>Updates this set in place with the result of inserting the given |
| assertion into this set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.remove" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2689-2691">source</a><h4 class="code-header">pub fn <a href="#method.remove" class="fnname">remove</a>(self, look: <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Return a new set that is equivalent to the original, but with the given |
| assertion removed from it. If the assertion is not in the set, then the |
| returned set is equivalent to the original.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.set_remove" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2696-2698">source</a><h4 class="code-header">pub fn <a href="#method.set_remove" class="fnname">set_remove</a>(&mut self, look: <a class="enum" href="enum.Look.html" title="enum regex_syntax::hir::Look">Look</a>)</h4></section></summary><div class="docblock"><p>Updates this set in place with the result of removing the given |
| assertion from this set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.subtract" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2703-2705">source</a><h4 class="code-header">pub fn <a href="#method.subtract" class="fnname">subtract</a>(self, other: <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Returns a new set that is the result of subtracting the given set from |
| this set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.set_subtract" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2710-2712">source</a><h4 class="code-header">pub fn <a href="#method.set_subtract" class="fnname">set_subtract</a>(&mut self, other: <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>)</h4></section></summary><div class="docblock"><p>Updates this set in place with the result of subtracting the given set |
| from this set.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.union" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2716-2718">source</a><h4 class="code-header">pub fn <a href="#method.union" class="fnname">union</a>(self, other: <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Returns a new set that is the union of this and the one given.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.set_union" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2723-2725">source</a><h4 class="code-header">pub fn <a href="#method.set_union" class="fnname">set_union</a>(&mut self, other: <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>)</h4></section></summary><div class="docblock"><p>Updates this set in place with the result of unioning it with the one |
| given.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.intersect" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2729-2731">source</a><h4 class="code-header">pub fn <a href="#method.intersect" class="fnname">intersect</a>(self, other: <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Returns a new set that is the intersection of this and the one given.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.set_intersect" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2736-2738">source</a><h4 class="code-header">pub fn <a href="#method.set_intersect" class="fnname">set_intersect</a>(&mut self, other: <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>)</h4></section></summary><div class="docblock"><p>Updates this set in place with the result of intersecting it with the |
| one given.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.read_repr" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2747-2750">source</a><h4 class="code-header">pub fn <a href="#method.read_repr" class="fnname">read_repr</a>(slice: &[u8]) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class="docblock"><p>Return a <code>LookSet</code> from the slice given as a native endian 16-bit |
| integer.</p> |
| <h5 id="panics"><a href="#panics">Panics</a></h5> |
| <p>This panics if <code>slice.len() < 2</code>.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.write_repr" class="method has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2759-2763">source</a><h4 class="code-header">pub fn <a href="#method.write_repr" class="fnname">write_repr</a>(self, slice: &mut [u8])</h4></section></summary><div class="docblock"><p>Write a <code>LookSet</code> as a native endian 16-bit integer to the beginning |
| of the slice given.</p> |
| <h5 id="panics-1"><a href="#panics-1">Panics</a></h5> |
| <p>This panics if <code>slice.len() < 2</code>.</p> |
| </div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Clone-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-Clone-for-LookSet" class="anchor"></a><h3 class="code-header">impl Clone for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone</a>(&self) -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">clone_from</a>(&mut self, source: &Self)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2766-2776">source</a><a href="#impl-Debug-for-LookSet" class="anchor"></a><h3 class="code-header">impl Debug for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2767-2775">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, f: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Default-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-Default-for-LookSet" class="anchor"></a><h3 class="code-header">impl Default for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.default" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#method.default" class="anchor"></a><h4 class="code-header">fn <a class="fnname">default</a>() -> <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h4></section></summary><div class='docblock'>Returns the “default value” for a type. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CLookSet%3E-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-PartialEq%3CLookSet%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl PartialEq<<a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>> for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#method.eq" class="anchor"></a><h4 class="code-header">fn <a class="fnname">eq</a>(&self, other: &<a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a>) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used |
| by <code>==</code>. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.ne" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">ne</a>(&self, other: &Rhs) -> bool</h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always |
| sufficient, and should not be overridden without very good reason. <a>Read more</a></div></details></div></details><section id="impl-Copy-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-Copy-for-LookSet" class="anchor"></a><h3 class="code-header">impl Copy for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-Eq-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-Eq-for-LookSet" class="anchor"></a><h3 class="code-header">impl Eq for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-StructuralEq-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-StructuralEq-for-LookSet" class="anchor"></a><h3 class="code-header">impl StructuralEq for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-StructuralPartialEq-for-LookSet" class="impl has-srclink"><a class="srclink rightside" href="../../src/regex_syntax/hir/mod.rs.html#2541">source</a><a href="#impl-StructuralPartialEq-for-LookSet" class="anchor"></a><h3 class="code-header">impl StructuralPartialEq for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-LookSet" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-LookSet" class="anchor"></a><h3 class="code-header">impl RefUnwindSafe for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-Send-for-LookSet" class="impl has-srclink"><a href="#impl-Send-for-LookSet" class="anchor"></a><h3 class="code-header">impl Send for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-Sync-for-LookSet" class="impl has-srclink"><a href="#impl-Sync-for-LookSet" class="anchor"></a><h3 class="code-header">impl Sync for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-Unpin-for-LookSet" class="impl has-srclink"><a href="#impl-Unpin-for-LookSet" class="anchor"></a><h3 class="code-header">impl Unpin for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section><section id="impl-UnwindSafe-for-LookSet" class="impl has-srclink"><a href="#impl-UnwindSafe-for-LookSet" class="anchor"></a><h3 class="code-header">impl UnwindSafe for <a class="struct" href="struct.LookSet.html" title="struct regex_syntax::hir::LookSet">LookSet</a></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-LookSet" class="impl has-srclink"><a href="#impl-Any-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where<br> T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-LookSet" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-LookSet" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-LookSet" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T> From<T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-LookSet" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where<br> U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code>[From]<T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-LookSet" class="impl has-srclink"><a href="#impl-ToOwned-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T> ToOwned for T<span class="where fmt-newline">where<br> T: Clone,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Owned" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a class="fnname">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone_into</a>(&self, target: &mut T)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-LookSet" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where<br> U: Into<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-LookSet" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-LookSet" class="anchor"></a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where<br> U: TryFrom<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="regex_syntax" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
