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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A state in an NFA."><title>State in regex_automata::nfa::thompson - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="regex_automata" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc enum"><!--[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></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../regex_automata/index.html">regex_automata</a><span class="version">0.4.5</span></h2></div><h2 class="location"><a href="#">State</a></h2><div class="sidebar-elems"><section><h3><a href="#variants">Variants</a></h3><ul class="block variant"><li><a href="#variant.BinaryUnion">BinaryUnion</a></li><li><a href="#variant.ByteRange">ByteRange</a></li><li><a href="#variant.Capture">Capture</a></li><li><a href="#variant.Dense">Dense</a></li><li><a href="#variant.Fail">Fail</a></li><li><a href="#variant.Look">Look</a></li><li><a href="#variant.Match">Match</a></li><li><a href="#variant.Sparse">Sparse</a></li><li><a href="#variant.Union">Union</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.is_epsilon">is_epsilon</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Clone-for-State">Clone</a></li><li><a href="#impl-Debug-for-State">Debug</a></li><li><a href="#impl-Eq-for-State">Eq</a></li><li><a href="#impl-PartialEq-for-State">PartialEq</a></li><li><a href="#impl-StructuralEq-for-State">StructuralEq</a></li><li><a href="#impl-StructuralPartialEq-for-State">StructuralPartialEq</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-State">RefUnwindSafe</a></li><li><a href="#impl-Send-for-State">Send</a></li><li><a href="#impl-Sync-for-State">Sync</a></li><li><a href="#impl-Unpin-for-State">Unpin</a></li><li><a href="#impl-UnwindSafe-for-State">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../../regex_automata/all.html" title="show sidebar"></a></div><input class="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"><div id="help-button" tabindex="-1"><a href="../../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Enum <a href="../../index.html">regex_automata</a>::<wbr><a href="../index.html">nfa</a>::<wbr><a href="index.html">thompson</a>::<wbr><a class="enum" href="#">State</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1512-1619">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub enum State {
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ByteRange {
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trans: <a class="struct" href="struct.Transition.html" title="struct regex_automata::nfa::thompson::Transition">Transition</a>,
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},
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Sparse(<a class="struct" href="struct.SparseTransitions.html" title="struct regex_automata::nfa::thompson::SparseTransitions">SparseTransitions</a>),
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Dense(<a class="struct" href="struct.DenseTransitions.html" title="struct regex_automata::nfa::thompson::DenseTransitions">DenseTransitions</a>),
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Look {
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look: <a class="enum" href="../../util/look/enum.Look.html" title="enum regex_automata::util::look::Look">Look</a>,
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next: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a>,
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},
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Union {
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alternates: <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><[<a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a>]>,
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},
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BinaryUnion {
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alt1: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a>,
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alt2: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a>,
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},
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Capture {
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next: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a>,
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pattern_id: <a class="struct" href="../../struct.PatternID.html" title="struct regex_automata::PatternID">PatternID</a>,
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group_index: <a class="struct" href="../../util/primitives/struct.SmallIndex.html" title="struct regex_automata::util::primitives::SmallIndex">SmallIndex</a>,
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slot: <a class="struct" href="../../util/primitives/struct.SmallIndex.html" title="struct regex_automata::util::primitives::SmallIndex">SmallIndex</a>,
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},
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Fail,
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Match {
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pattern_id: <a class="struct" href="../../struct.PatternID.html" title="struct regex_automata::PatternID">PatternID</a>,
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},
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A state in an NFA.</p>
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<p>In theory, it can help to conceptualize an <code>NFA</code> as a graph consisting of
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<code>State</code>s. Each <code>State</code> contains its complete set of outgoing transitions.</p>
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<p>In practice, it can help to conceptualize an <code>NFA</code> as a sequence of
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instructions for a virtual machine. Each <code>State</code> says what to do and where
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to go next.</p>
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<p>Strictly speaking, the practical interpretation is the most correct one,
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because of the <a href="enum.State.html#variant.Capture" title="variant regex_automata::nfa::thompson::State::Capture"><code>Capture</code></a> state. Namely, a <code>Capture</code>
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state always forwards execution to another state unconditionally. Its only
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purpose is to cause a side effect: the recording of the current input
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position at a particular location in memory. In this sense, an <code>NFA</code>
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has more power than a theoretical non-deterministic finite automaton.</p>
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<p>For most uses of this crate, it is likely that one may never even need to
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be aware of this type at all. The main use cases for looking at <code>State</code>s
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directly are if you need to write your own search implementation or if you
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need to do some kind of analysis on the NFA.</p>
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</div></details><h2 id="variants" class="variants section-header">Variants<a href="#variants" class="anchor">§</a></h2><div class="variants"><section id="variant.ByteRange" class="variant"><a href="#variant.ByteRange" class="anchor">§</a><h3 class="code-header">ByteRange</h3></section><div class="sub-variant" id="variant.ByteRange.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.ByteRange.field.trans" class="section-header"><a href="#variant.ByteRange.field.trans" class="anchor field">§</a><code>trans: <a class="struct" href="struct.Transition.html" title="struct regex_automata::nfa::thompson::Transition">Transition</a></code></span><div class="docblock"><p>The transition from this state to the next.</p>
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</div></div></div><div class="docblock"><p>A state with a single transition that can only be taken if the current
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input symbol is in a particular range of bytes.</p>
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</div><section id="variant.Sparse" class="variant"><a href="#variant.Sparse" class="anchor">§</a><h3 class="code-header">Sparse(<a class="struct" href="struct.SparseTransitions.html" title="struct regex_automata::nfa::thompson::SparseTransitions">SparseTransitions</a>)</h3></section><div class="docblock"><p>A state with possibly many transitions represented in a sparse fashion.
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Transitions are non-overlapping and ordered lexicographically by input
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range.</p>
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<p>In practice, this is used for encoding UTF-8 automata. Its presence is
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primarily an optimization that avoids many additional unconditional
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epsilon transitions (via <a href="enum.State.html#variant.Union" title="variant regex_automata::nfa::thompson::State::Union"><code>Union</code></a> states), and thus
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decreases the overhead of traversing the NFA. This can improve both
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matching time and DFA construction time.</p>
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</div><section id="variant.Dense" class="variant"><a href="#variant.Dense" class="anchor">§</a><h3 class="code-header">Dense(<a class="struct" href="struct.DenseTransitions.html" title="struct regex_automata::nfa::thompson::DenseTransitions">DenseTransitions</a>)</h3></section><div class="docblock"><p>A dense representation of a state with multiple transitions.</p>
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</div><section id="variant.Look" class="variant"><a href="#variant.Look" class="anchor">§</a><h3 class="code-header">Look</h3></section><div class="sub-variant" id="variant.Look.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.Look.field.look" class="section-header"><a href="#variant.Look.field.look" class="anchor field">§</a><code>look: <a class="enum" href="../../util/look/enum.Look.html" title="enum regex_automata::util::look::Look">Look</a></code></span><div class="docblock"><p>The look-around assertion that must be satisfied before moving
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to <code>next</code>.</p>
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</div></div><div class="sub-variant-field"><span id="variant.Look.field.next" class="section-header"><a href="#variant.Look.field.next" class="anchor field">§</a><code>next: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a></code></span><div class="docblock"><p>The state to transition to if the look-around assertion is
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satisfied.</p>
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</div></div></div><div class="docblock"><p>A conditional epsilon transition satisfied via some sort of
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look-around. Look-around is limited to anchor and word boundary
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assertions.</p>
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<p>Look-around states are meant to be evaluated while performing epsilon
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closure (computing the set of states reachable from a particular state
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via only epsilon transitions). If the current position in the haystack
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satisfies the look-around assertion, then you’re permitted to follow
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that epsilon transition.</p>
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</div><section id="variant.Union" class="variant"><a href="#variant.Union" class="anchor">§</a><h3 class="code-header">Union</h3></section><div class="sub-variant" id="variant.Union.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.Union.field.alternates" class="section-header"><a href="#variant.Union.field.alternates" class="anchor field">§</a><code>alternates: <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><[<a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a>]></code></span><div class="docblock"><p>An ordered sequence of unconditional epsilon transitions to other
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states. Transitions earlier in the sequence are preferred over
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transitions later in the sequence.</p>
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</div></div></div><div class="docblock"><p>An alternation such that there exists an epsilon transition to all
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states in <code>alternates</code>, where matches found via earlier transitions
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are preferred over later transitions.</p>
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</div><section id="variant.BinaryUnion" class="variant"><a href="#variant.BinaryUnion" class="anchor">§</a><h3 class="code-header">BinaryUnion</h3></section><div class="sub-variant" id="variant.BinaryUnion.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.BinaryUnion.field.alt1" class="section-header"><a href="#variant.BinaryUnion.field.alt1" class="anchor field">§</a><code>alt1: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a></code></span><div class="docblock"><p>An unconditional epsilon transition to another NFA state. This
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is preferred over <code>alt2</code>.</p>
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</div></div><div class="sub-variant-field"><span id="variant.BinaryUnion.field.alt2" class="section-header"><a href="#variant.BinaryUnion.field.alt2" class="anchor field">§</a><code>alt2: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a></code></span><div class="docblock"><p>An unconditional epsilon transition to another NFA state. Matches
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reported via this transition should only be reported if no matches
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were found by following <code>alt1</code>.</p>
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</div></div></div><div class="docblock"><p>An alternation such that there exists precisely two unconditional
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epsilon transitions, where matches found via <code>alt1</code> are preferred over
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matches found via <code>alt2</code>.</p>
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<p>This state exists as a common special case of Union where there are
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only two alternates. In this case, we don’t need any allocations to
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represent the state. This saves a bit of memory and also saves an
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additional memory access when traversing the NFA.</p>
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</div><section id="variant.Capture" class="variant"><a href="#variant.Capture" class="anchor">§</a><h3 class="code-header">Capture</h3></section><div class="sub-variant" id="variant.Capture.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.Capture.field.next" class="section-header"><a href="#variant.Capture.field.next" class="anchor field">§</a><code>next: <a class="struct" href="../../util/primitives/struct.StateID.html" title="struct regex_automata::util::primitives::StateID">StateID</a></code></span><div class="docblock"><p>The state to transition to, unconditionally.</p>
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</div></div><div class="sub-variant-field"><span id="variant.Capture.field.pattern_id" class="section-header"><a href="#variant.Capture.field.pattern_id" class="anchor field">§</a><code>pattern_id: <a class="struct" href="../../struct.PatternID.html" title="struct regex_automata::PatternID">PatternID</a></code></span><div class="docblock"><p>The pattern ID that this capture belongs to.</p>
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</div></div><div class="sub-variant-field"><span id="variant.Capture.field.group_index" class="section-header"><a href="#variant.Capture.field.group_index" class="anchor field">§</a><code>group_index: <a class="struct" href="../../util/primitives/struct.SmallIndex.html" title="struct regex_automata::util::primitives::SmallIndex">SmallIndex</a></code></span><div class="docblock"><p>The capture group index that this capture belongs to. Capture group
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indices are local to each pattern. For example, when capturing
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groups are enabled, every pattern has a capture group at index
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<code>0</code>.</p>
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</div></div><div class="sub-variant-field"><span id="variant.Capture.field.slot" class="section-header"><a href="#variant.Capture.field.slot" class="anchor field">§</a><code>slot: <a class="struct" href="../../util/primitives/struct.SmallIndex.html" title="struct regex_automata::util::primitives::SmallIndex">SmallIndex</a></code></span><div class="docblock"><p>The slot index for this capture. Every capturing group has two
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slots: one for the start haystack offset and one for the end
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haystack offset. Unlike capture group indices, slot indices are
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global across all patterns in this NFA. That is, each slot belongs
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to a single pattern, but there is only one slot at index <code>i</code>.</p>
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</div></div></div><div class="docblock"><p>An empty state that records a capture location.</p>
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<p>From the perspective of finite automata, this is precisely equivalent
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to an unconditional epsilon transition, but serves the purpose of
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instructing NFA simulations to record additional state when the finite
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state machine passes through this epsilon transition.</p>
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<p><code>slot</code> in this context refers to the specific capture group slot
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offset that is being recorded. Each capturing group has two slots
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corresponding to the start and end of the matching portion of that
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group.</p>
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<p>The pattern ID and capture group index are also included in this state
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in case they are useful. But mostly, all you’ll need is <code>next</code> and
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<code>slot</code>.</p>
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</div><section id="variant.Fail" class="variant"><a href="#variant.Fail" class="anchor">§</a><h3 class="code-header">Fail</h3></section><div class="docblock"><p>A state that cannot be transitioned out of. This is useful for cases
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where you want to prevent matching from occurring. For example, if your
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regex parser permits empty character classes, then one could choose
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a <code>Fail</code> state to represent them. (An empty character class can be
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thought of as an empty set. Since nothing is in an empty set, they can
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never match anything.)</p>
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</div><section id="variant.Match" class="variant"><a href="#variant.Match" class="anchor">§</a><h3 class="code-header">Match</h3></section><div class="sub-variant" id="variant.Match.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.Match.field.pattern_id" class="section-header"><a href="#variant.Match.field.pattern_id" class="anchor field">§</a><code>pattern_id: <a class="struct" href="../../struct.PatternID.html" title="struct regex_automata::PatternID">PatternID</a></code></span><div class="docblock"><p>The matching pattern ID.</p>
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</div></div></div><div class="docblock"><p>A match state. There is at least one such occurrence of this state for
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each regex that can match that is in this NFA.</p>
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</div></div><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1621-1724">source</a><a href="#impl-State" class="anchor">§</a><h3 class="code-header">impl <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.is_epsilon" class="method"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1655-1667">source</a><h4 class="code-header">pub fn <a href="#method.is_epsilon" class="fn">is_epsilon</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns true if and only if this state contains one or more epsilon
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transitions.</p>
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<p>In practice, a state has no outgoing transitions (like <code>Match</code>), has
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only non-epsilon transitions (like <code>ByteRange</code>) or has only epsilon
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transitions (like <code>Union</code>).</p>
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<h5 id="example"><a href="#example">Example</a></h5>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>regex_automata::{
|
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nfa::thompson::{State, Transition},
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util::primitives::{PatternID, StateID, SmallIndex},
|
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};
|
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|
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<span class="comment">// Capture states are epsilon transitions.
|
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</span><span class="kw">let </span>state = State::Capture {
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next: StateID::ZERO,
|
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|
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pattern_id: PatternID::ZERO,
|
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group_index: SmallIndex::ZERO,
|
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|
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slot: SmallIndex::ZERO,
|
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|
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};
|
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|
|
<span class="macro">assert!</span>(state.is_epsilon());
|
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|
|
|
|||
|
|
<span class="comment">// ByteRange states are not.
|
|||
|
|
</span><span class="kw">let </span>state = State::ByteRange {
|
|||
|
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trans: Transition { start: <span class="string">b'a'</span>, end: <span class="string">b'z'</span>, next: StateID::ZERO },
|
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|
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};
|
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|
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<span class="macro">assert!</span>(!state.is_epsilon());
|
|||
|
|
</code></pre></div>
|
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|
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</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1511">source</a><a href="#impl-Clone-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1511">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&self) -> <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.76.0/src/core/clone.rs.html#169">source</a></span><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1726-1783">source</a><a href="#impl-Debug-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1727-1782">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.76.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-PartialEq-for-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1511">source</a><a href="#impl-PartialEq-for-State" class="anchor">§</a><h3 class="code-header">impl <a cl
|
|||
|
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by <code>==</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.76.0/src/core/cmp.rs.html#242">source</a></span><a href="#method.ne" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html#method.ne" class="fn">ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&Rhs</a>) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
|
|||
|
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sufficient, and should not be overridden without very good reason.</div></details></div></details><section id="impl-Eq-for-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1511">source</a><a href="#impl-Eq-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section><section id="impl-StructuralEq-for-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1511">source</a><a href="#impl-StructuralEq-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.StructuralEq.html" title="trait core::marker::StructuralEq">StructuralEq</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section><section id="impl-StructuralPartialEq-for-State" class="impl"><a class="src rightside" href="../../../src/regex_automata/nfa/thompson/nfa.rs.html#1511">source</a><a href="#impl-StructuralPartialEq-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.StructuralPartialEq.html" title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-State" class="impl"><a href="#impl-RefUnwindSafe-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section><section id="impl-Send-for-State" class="impl"><a href="#impl-Send-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section><section id="impl-Sync-for-State" class="impl"><a href="#impl-Sync-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section><section id="impl-Unpin-for-State" class="impl"><a href="#impl-Unpin-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section><section id="impl-UnwindSafe-for-State" class="impl"><a href="#impl-UnwindSafe-for-State" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="enum" href="enum.State.html" title="enum regex_automata::nfa::thompson::State">State</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightsid
|
|||
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T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T<div class="where">where
|
|||
|
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T<div class="where">where
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|||
|
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T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#763">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#766">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T<div class="where">where
|
|||
|
|
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#756">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
|
|||
|
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<p>That is, this conversion is whatever the implementation of
|
|||
|
|
<code><a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for U</code> chooses to do.</p>
|
|||
|
|
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
|
|||
|
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T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#803-805">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#810">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#788-790">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T<div class="where">where
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U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#795">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main></body></html>
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