<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `MatchKind` enum in crate `aho_corasick`."><metaname="keywords"content="rust, rustlang, rust-lang, MatchKind"><title>aho_corasick::MatchKind - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="shortcut icon"href="../favicon.ico"><styletype="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><bodyclass="rustdoc enum"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../aho_corasick/index.html'><divclass='logo-container'><imgsrc='../rust-logo.png'alt='logo'></div></a><pclass='location'>Enum MatchKind</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#variants">Variants</a><divclass="sidebar-links"><ahref="#variant.Standard">Standard</a><ahref="#variant.LeftmostFirst">LeftmostFirst</a><ahref="#variant.LeftmostLongest">LeftmostLongest</a></div><aclass="sidebar-title"href="#implementations">Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-Clone">Clone</a><ahref="#impl-Copy">Copy</a><ahref="#impl-Debug">Debug</a><ahref="#impl-Default">Default</a><ahref="#impl-Eq">Eq</a><ahref="#impl-PartialEq%3CMatchKind%3E">PartialEq<MatchKind></a></div><aclass="sidebar-title"href="#synthetic-implementations">Auto Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-RefUnwindSafe">RefUnwindSafe</a><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a><ahref="#impl-Unpin">Unpin</a><ahref="#impl-UnwindSafe">UnwindSafe</a></div><aclass="sidebar-title"href="#blanket-implementations">Blanket Implementations</a><divclass="sidebar-links"><ahref="#impl-Any">Any</a><ahref="#impl-Borrow%3CT%3E">Borrow<T></a><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><ahref="#impl-From%3CT%3E">From<T></a><ahref="#impl-Into%3CU%3E">Into<U></a><ahref="#impl-ToOwned">ToOwned</a><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a><ahref="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><pclass='location'><ahref='index.html'>aho_corasick</a></p><script>window.sidebarCurrent={name:'MatchKind',ty:'enum',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1990-2019'title='goto source code'>[src]</a></span><spanclass='in-band'>Enum <ahref='index.html'>aho_corasick</a>::<wbr><aclass="enum"href=''>MatchKind</a></span></h1><divclass="docblock type-decl hidden-by-usual-hider">
Standard,
LeftmostFirst,
LeftmostLongest,
// some variants omitted
}</pre></div><divclass='docblock'><p>A knob for controlling the match semantics of an Aho-Corasick automaton.</p>
<p>There are two generally different ways that Aho-Corasick automatons can
report matches. The first way is the "standard" approach that results from
implementing most textbook explanations of Aho-Corasick. The second way is
to report only the leftmost non-overlapping matches. The leftmost approach
is in turn split into two different ways of resolving ambiguous matches:
leftmost-first and leftmost-longest.</p>
<p>The <code>Standard</code> match kind is the default and is the only one that supports
overlapping matches and stream searching. (Trying to find overlapping
or streaming matches using leftmost match semantics will result in a
panic.) The <code>Standard</code> match kind will report matches as they are seen.
When searching for overlapping matches, then all possible matches are
reported. When searching for non-overlapping matches, the first match seen
is reported. For example, for non-overlapping matches, given the patterns
<code>abcd</code> and <code>b</code> and the subject string <code>abcdef</code>, only a match for <code>b</code> is
reported since it is detected first. The <code>abcd</code> match is never reported
since it overlaps with the <code>b</code> match.</p>
<p>In contrast, the leftmost match kind always prefers the leftmost match
among all possible matches. Given the same example as above with <code>abcd</code> and
<code>b</code> as patterns and <code>abcdef</code> as the subject string, the leftmost match is
<code>abcd</code> since it begins before the <code>b</code> match, even though the <code>b</code> match is
detected before the <code>abcd</code> match. In this case, the <code>b</code> match is not
reported at all since it overlaps with the <code>abcd</code> match.</p>
<p>The difference between leftmost-first and leftmost-longest is in how they
resolve ambiguous matches when there are multiple leftmost matches to
choose from. Leftmost-first always chooses the pattern that was provided
earliest, where as leftmost-longest always chooses the longest matching
pattern. For example, given the patterns <code>a</code> and <code>ab</code> and the subject
string <code>ab</code>, the leftmost-first match is <code>a</code> but the leftmost-longest match
is <code>ab</code>. Conversely, if the patterns were given in reverse order, i.e.,
<code>ab</code> and <code>a</code>, then both the leftmost-first and leftmost-longest matches
would be <code>ab</code>. Stated differently, the leftmost-first match depends on the
order in which the patterns were given to the Aho-Corasick automaton.
Because of that, when leftmost-first matching is used, if a pattern <code>A</code>
that appears before a pattern <code>B</code> is a prefix of <code>B</code>, then it is impossible
to ever observe a match of <code>B</code>.</p>
<p>If you're not sure which match kind to pick, then stick with the standard
kind, which is the default. In particular, if you need overlapping or
streaming matches, then you <em>must</em> use the standard kind. The leftmost
kinds are useful in specific circumstances. For example, leftmost-first can
be very useful as a way to implement match priority based on the order of
patterns given and leftmost-longest can be useful for dictionary searching
such that only the longest matching words are reported.</p>
<h1id="relationship-with-regular-expression-alternations"class="section-header"><ahref="#relationship-with-regular-expression-alternations">Relationship with regular expression alternations</a></h1>
<p>Understanding match semantics can be a little tricky, and one easy way
to conceptualize non-overlapping matches from an Aho-Corasick automaton
is to think about them as a simple alternation of literals in a regular
expression. For example, let's say we wanted to match the strings
<code>Sam</code> and <code>Samwise</code>, which would turn into the regex <code>Sam|Samwise</code>. It
turns out that regular expression engines have two different ways of
matching this alternation. The first way, leftmost-longest, is commonly
found in POSIX compatible implementations of regular expressions (such as
<code>grep</code>). The second way, leftmost-first, is commonly found in backtracking
implementations such as Perl. (Some regex engines, such as RE2 and Rust's
regex engine do not use backtracking, but still implement leftmost-first
semantics in an effort to match the behavior of dominant backtracking
regex engines such as those found in Perl, Ruby, Python, Javascript and
PHP.)</p>
<p>That is, when matching <code>Sam|Samwise</code> against <code>Samwise</code>, a POSIX regex
will match <code>Samwise</code> because it is the longest possible match, but a
Perl-like regex will match <code>Sam</code> since it appears earlier in the
alternation. Indeed, the regex <code>Sam|Samwise</code> in a Perl-like regex engine
will never match <code>Samwise</code> since <code>Sam</code> will always have higher priority.
Conversely, matching the regex <code>Samwise|Sam</code> against <code>Samwise</code> will lead to
a match of <code>Samwise</code> in both POSIX and Perl-like regexes since <code>Samwise</code> is
still longest match, but it also appears earlier than <code>Sam</code>.</p>
<p>The "standard" match semantics of Aho-Corasick generally don't correspond
to the match semantics of any large group of regex implementations, so
there's no direct analogy that can be made here. Standard match semantics
are generally useful for overlapping matches, or if you just want to see
matches as they are detected.</p>
<p>The main conclusion to draw from this section is that the match semantics
can be tweaked to precisely match either Perl-like regex alternations or
<spanid="variant.Standard"class="variant small-section-header"><ahref="#variant.Standard"class="anchor field"></a><codeid='Standard.v'>Standard</code></span><divclass='docblock'><p>Use standard match semantics, which support overlapping matches. When
used with non-overlapping matches, matches are reported as they are
seen.</p>
</div><spanid="variant.LeftmostFirst"class="variant small-section-header"><ahref="#variant.LeftmostFirst"class="anchor field"></a><codeid='LeftmostFirst.v'>LeftmostFirst</code></span><divclass='docblock'><p>Use leftmost-first match semantics, which reports leftmost matches.
When there are multiple possible leftmost matches, the match
corresponding to the pattern that appeared earlier when constructing
the automaton is reported.</p>
<p>This does <strong>not</strong> support overlapping matches or stream searching. If
this match kind is used, attempting to find overlapping matches or
stream matches will panic.</p>
</div><spanid="variant.LeftmostLongest"class="variant small-section-header"><ahref="#variant.LeftmostLongest"class="anchor field"></a><codeid='LeftmostLongest.v'>LeftmostLongest</code></span><divclass='docblock'><p>Use leftmost-longest match semantics, which reports leftmost matches.
When there are multiple possible leftmost matches, the longest match
is chosen.</p>
<p>This does <strong>not</strong> support overlapping matches or stream searching. If
this match kind is used, attempting to find overlapping matches or
stream matches will panic.</p>
</div><h2id='implementations'class='small-section-header'>Trait Implementations<ahref='#implementations'class='anchor'></a></h2><divid='implementations-list'><h3id='impl-Eq'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html"title="trait core::cmp::Eq">Eq</a> for <aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><ahref='#impl-Eq'class='anchor'></a><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h3><divclass='impl-items'></div><h3id='impl-Default'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html"title="trait core::default::Default">Default</a> for <aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><ahref='#impl-Default'class='anchor'></a><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#2022-2026'title='goto source code'>[src]</a></h3><divclass='docblock'><p>The default match kind is <code>MatchKind::Standard</code>.</p>
</div><divclass='impl-items'><h4id='method.default'class="method hidden"><codeid='default.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default'class='fnname'>default</a>() -><aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#2023-2025'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Returns the "default value" for a type. <ahref="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default">Read more</a></p>
</div></div><h3id='impl-Clone'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a> for <aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><ahref='#impl-Clone'class='anchor'></a><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.clone'class="method hidden"><codeid='clone.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone'class='fnname'>clone</a>(&self) -><aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Returns a copy of the value. <ahref="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4id='method.clone_from'class="method hidden"><codeid='clone_from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from'class='fnname'>clone_from</a>(&mut self, source: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><spanclass='since'title='Stable since Rust version 1.0.0'>1.0.0</span><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#131-133'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <ahref="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3id='impl-PartialEq%3CMatchKind%3E'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html"title="trait core::cmp::PartialEq">PartialEq</a><<aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a>> for <aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><ahref='#impl-PartialEq%3CMatchKind%3E'class='anchor'></a><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.eq'class="method hidden"><codeid='eq.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq'class='fnname'>eq</a>(&self, other: &<aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a>) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <ahref="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
</span>fn <ahref='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne'class='fnname'>ne</a>(&self, other: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><spanclass='since'title='Stable since Rust version 1.0.0'>1.0.0</span><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#200'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>This method tests for <code>!=</code>.</p>
</div></div><h3id='impl-Copy'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html"title="trait core::marker::Copy">Copy</a> for <aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><ahref='#impl-Copy'class='anchor'></a><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h3><divclass='impl-items'></div><h3id='impl-Debug'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="enum"href="../aho_corasick/enum.MatchKind.html"title="enum aho_corasick::MatchKind">MatchKind</a></code><ahref='#impl-Debug'class='anchor'></a><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.fmt'class="method hidden"><codeid='fmt.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt'class='fnname'>fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a>) -><aclass="type"href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></code><aclass='srclink'href='../src/aho_corasick/ahocorasick.rs.html#1989'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3id='impl-ToOwned'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T <spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>, </span></code><ahref='#impl-ToOwned'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-92'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Owned'class="type"><codeid='Owned.t'>type <ahref='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned'class="type">Owned</a> = T</code></h4><divclass='docblock'><p>The resulting type after obtaining ownership.</p>
</div><h4id='method.to_owned'class="method hidden"><codeid='to_owned.v'>fn <ahref='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned'class='fnname'>to_owned</a>(&self) -> T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#85-87'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
</div><h4id='method.clone_into'class="method hidden"><codeid='clone_into.v'>fn <ahref='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into'class='fnname'>clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#89-91'title='goto source code'>[src]</a></h4><divclass='stability hidden'><divclass='stab unstable'><details><summary><spanclass='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
</details></div></div><divclass='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
</div></div><h3id='impl-TryFrom%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></code><ahref='#impl-TryFrom%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#571-577'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error'class="type"><codeid='Error.t'>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error'class="type">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_from'class="method hidden"><codeid='try_from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from'class='fnname'>try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#574-576'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-TryInto%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><ahref='#impl-TryInto%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#559-566'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error-1'class="type"><codeid='Error.t-1'>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error'class="type">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_into'class="method hidden"><codeid='try_into.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into'class='fnname'>try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#563-565'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-BorrowMut%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-BorrowMut%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#218-220'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow_mut'class="method hidden"><codeid='borrow_mut.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut'class='fnname'>borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#219'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3id='impl-Borrow%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Borrow%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-215'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow'class="method hidden"><codeid='borrow.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow'class='fnname'>borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3id='impl-Any'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> for T <spanclass="where fmt-newline">where<br> T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Any'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#100-102'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.type_id'class="method hidden"><codeid='type_id.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id'class='fnname'>type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#101'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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