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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="Verify the value is from an enumerated set of [`PossibleValue`][crate::builder::PossibleValue]."><meta name="keywords" content="rust, rustlang, rust-lang, PossibleValuesParser"><title>PossibleValuesParser in clap::builder - 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" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" 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="../../clap/index.html"><div class="logo-container"><img src="https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png" alt="logo"></div></a><h2 class="location"></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../clap/index.html"><div class="logo-container">
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<img src="https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png" alt="logo"></div></a><h2 class="location"><a href="#">PossibleValuesParser</a></h2><div class="sidebar-elems"><section><div class="block"><h3 class="sidebar-title"><a href="#implementations">Methods</a></h3><ul><li><a href="#method.new">new</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#trait-implementations">Trait Implementations</a></h3><ul><li><a href="#impl-Clone-for-PossibleValuesParser">Clone</a></li><li><a href="#impl-Debug-for-PossibleValuesParser">Debug</a></li><li><a href="#impl-From%3CI%3E-for-PossibleValuesParser">From<I></a></li><li><a href="#impl-TypedValueParser-for-PossibleValuesParser">TypedValueParser</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul><li><a href="#impl-RefUnwindSafe-for-PossibleValuesParser">RefUnwindSafe</a></li><li><a href="#impl-Send-for-PossibleValuesParser">Send</a></li><li><a href="#impl-Sync-for-PossibleValuesParser">Sync</a></li><li><a href="#impl-Unpin-for-PossibleValuesParser">Unpin</a></li><li><a href="#impl-UnwindSafe-for-PossibleValuesParser">UnwindSafe</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#blanket-implementations">Blanket Implementations</a></h3><ul><li><a href="#impl-Any-for-PossibleValuesParser">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-PossibleValuesParser">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-PossibleValuesParser">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E-for-PossibleValuesParser">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-PossibleValuesParser">Into<U></a></li><li><a href="#impl-ToOwned-for-PossibleValuesParser">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-PossibleValuesParser">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-PossibleValuesParser">TryInto<U></a></li></ul></div></section><h2 class="location"><a href="index.html">In clap::builder</a></h2></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../clap/index.html">
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<img src="https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png" alt="logo"></a><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"><button type="button">?</button></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></div><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">clap</a>::<wbr><a href="index.html">builder</a>::<wbr><a class="struct" href="#">PossibleValuesParser</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></span></h1><span class="out-of-band"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1139">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="docblock item-decl"><pre class="rust struct"><code>pub struct PossibleValuesParser(_);</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Verify the value is from an enumerated set of <a href="struct.PossibleValue.html" title="crate::builder::PossibleValue"><code>PossibleValue</code></a>.</p>
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<p>See also:</p>
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<ul>
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<li><a href="struct.EnumValueParser.html" title="EnumValueParser"><code>EnumValueParser</code></a> for directly supporting <a href="../trait.ValueEnum.html" title="crate::ValueEnum"><code>ValueEnum</code></a> types</li>
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<li><a href="trait.TypedValueParser.html#method.map" title="TypedValueParser::map"><code>TypedValueParser::map</code></a> for adapting values to a more specialized type, like an external
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enums that can’t implement <a href="../trait.ValueEnum.html" title="crate::ValueEnum"><code>ValueEnum</code></a></li>
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</ul>
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<h2 id="example"><a href="#example">Example</a></h2>
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<p>Usage:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cmd</span> <span class="op">=</span> <span class="ident">clap::Command::new</span>(<span class="string">"raw"</span>)
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.<span class="ident">arg</span>(
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<span class="ident">clap::Arg::new</span>(<span class="string">"color"</span>)
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.<span class="ident">value_parser</span>(<span class="ident">clap::builder::PossibleValuesParser::new</span>([<span class="string">"always"</span>, <span class="string">"auto"</span>, <span class="string">"never"</span>]))
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.<span class="ident">required</span>(<span class="bool-val">true</span>)
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);
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<span class="kw">let</span> <span class="ident">m</span> <span class="op">=</span> <span class="ident">cmd</span>.<span class="ident">try_get_matches_from_mut</span>([<span class="string">"cmd"</span>, <span class="string">"always"</span>]).<span class="ident">unwrap</span>();
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<span class="kw">let</span> <span class="ident">port</span>: <span class="kw-2">&</span><span class="ident">String</span> <span class="op">=</span> <span class="ident">m</span>.<span class="ident">get_one</span>(<span class="string">"color"</span>)
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.<span class="ident">expect</span>(<span class="string">"required"</span>);
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<span class="macro">assert_eq!</span>(<span class="ident">port</span>, <span class="string">"always"</span>);</code></pre></div>
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<p>Semantics:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let</span> <span class="ident">value_parser</span> <span class="op">=</span> <span class="ident">clap::builder::PossibleValuesParser::new</span>([<span class="string">"always"</span>, <span class="string">"auto"</span>, <span class="string">"never"</span>]);
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<span class="macro">assert!</span>(<span class="ident">value_parser</span>.<span class="ident">parse_ref</span>(<span class="kw-2">&</span><span class="ident">cmd</span>, <span class="ident">arg</span>, <span class="ident">OsStr::new</span>(<span class="string">"random"</span>)).<span class="ident">is_err</span>());
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<span class="macro">assert!</span>(<span class="ident">value_parser</span>.<span class="ident">parse_ref</span>(<span class="kw-2">&</span><span class="ident">cmd</span>, <span class="ident">arg</span>, <span class="ident">OsStr::new</span>(<span class="string">""</span>)).<span class="ident">is_err</span>());
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<span class="macro">assert_eq!</span>(<span class="ident">value_parser</span>.<span class="ident">parse_ref</span>(<span class="kw-2">&</span><span class="ident">cmd</span>, <span class="ident">arg</span>, <span class="ident">OsStr::new</span>(<span class="string">"always"</span>)).<span class="ident">unwrap</span>(), <span class="string">"always"</span>);
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<span class="macro">assert_eq!</span>(<span class="ident">value_parser</span>.<span class="ident">parse_ref</span>(<span class="kw-2">&</span><span class="ident">cmd</span>, <span class="ident">arg</span>, <span class="ident">OsStr::new</span>(<span class="string">"auto"</span>)).<span class="ident">unwrap</span>(), <span class="string">"auto"</span>);
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<span class="macro">assert_eq!</span>(<span class="ident">value_parser</span>.<span class="ident">parse_ref</span>(<span class="kw-2">&</span><span class="ident">cmd</span>, <span class="ident">arg</span>, <span class="ident">OsStr::new</span>(<span class="string">"never"</span>)).<span class="ident">unwrap</span>(), <span class="string">"never"</span>);</code></pre></div>
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</div></details><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-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1141-1146">source</a></span><a href="#impl-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.new" class="method has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1143-1145">source</a></span><h4 class="code-header">pub fn <a href="#method.new" class="fnname">new</a>(values: impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a>>) -> Self</h4></section></summary><div class="docblock"><p>Verify the value is from an enumerated set pf <a href="struct.PossibleValue.html" title="crate::builder::PossibleValue"><code>PossibleValue</code></a>.</p>
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</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-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1138">source</a></span><a href="#impl-Clone-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</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"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1138">source</a></span><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h4></section></summary><div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/clone.rs.html#132-134">source</a></span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.64.0/std/primitive.reference.html">&</a>Self)</h4></section></summary><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1138">source</a></span><a href="#impl-Debug-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</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"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1138">source</a></span><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.64.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.64.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.64.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-From%3CI%3E-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1201-1209">source</a></span><a href="#impl-From%3CI%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<I, T> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><I> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a> <span class="where fmt-newline">where<br> I: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = T>,<br> T: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="struct.PossibleValue.html" title="struct clap::builder::PossibleValue">PossibleValue</a>>, </span></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="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1206-1208">source</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(values: I) -> Self</h4></section></summary><div class='docblock'><p>Converts to this type from the input type.</p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-TypedValueParser-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1148-1199">source</a></span><a href="#impl-TypedValueParser-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="trait.TypedValueParser.html" title="trait clap::builder::TypedValueParser">TypedValueParser</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Value" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Value" class="anchor"></a><h4 class="code-header">type <a href="trait.TypedValueParser.html#associatedtype.Value" class="associatedtype">Value</a> = <a class="struct" href="https://doc.rust-lang.org/1.64.0/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></h4></section></summary><div class='docblock'><p>Argument’s value type</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.parse_ref" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1151-1158">source</a></span><a href="#method.parse_ref" class="anchor"></a><h4 class="code-header">fn <a href="trait.TypedValueParser.html#tymethod.parse_ref" class="fnname">parse_ref</a>(<br> &self,<br> cmd: &<a class="struct" href="struct.Command.html" title="struct clap::builder::Command">Command</a>,<br> arg: <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="struct.Arg.html" title="struct clap::builder::Arg">Arg</a>>,<br> value: &<a class="struct" href="https://doc.rust-lang.org/1.64.0/std/ffi/os_str/struct.OsStr.html" title="struct std::ffi::os_str::OsStr">OsStr</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self::<a class="associatedtype" href="trait.TypedValueParser.html#associatedtype.Value" title="type clap::builder::TypedValueParser::Value">Value</a>, <a class="type" href="../type.Error.html" title="type clap::Error">Error</a>></h4></section></summary><div class='docblock'><p>Parse the argument value <a href="trait.TypedValueParser.html#tymethod.parse_ref">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.parse" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1160-1192">source</a></span><a href="#method.parse" class="anchor"></a><h4 class="code-header">fn <a href="trait.TypedValueParser.html#method.parse" class="fnname">parse</a>(<br> &self,<br> cmd: &<a class="struct" href="struct.Command.html" title="struct clap::builder::Command">Command</a>,<br> arg: <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="struct.Arg.html" title="struct clap::builder::Arg">Arg</a>>,<br> value: <a class="struct" href="https://doc.rust-lang.org/1.64.0/std/ffi/os_str/struct.OsString.html" title="struct std::ffi::os_str::OsString">OsString</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="https://doc.rust-lang.org/1.64.0/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>, <a class="type" href="../type.Error.html" title="type clap::Error">Error</a>></h4></section></summary><div class='docblock'><p>Parse the argument value <a href="trait.TypedValueParser.html#method.parse">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.possible_values" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#1194-1198">source</a></span><a href="#method.possible_values" class="anchor"></a><h4 class="code-header">fn <a href="trait.TypedValueParser.html#method.possible_values" class="fnname">possible_values</a>(<br> &self<br>) -> <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="https://doc.rust-lang.org/1.64.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><dyn <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a><Item = <a class="struct" href="struct.PossibleValue.html" title="struct clap::builder::PossibleValue">PossibleValue</a>> + '_>></h4></section></summary><div class='docblock'><p>Reflect on enumerated value properties <a href="trait.TypedValueParser.html#method.possible_values">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#757-763">source</a></span><a href="#method.map" class="anchor"></a><h4 class="code-header">fn <a href="trait.TypedValueParser.html#method.map" class="fnname">map</a><T, F>(self, func: F) -> <a class="struct" href="struct.MapValueParser.html" title="struct clap::builder::MapValueParser">MapValueParser</a><Self, F> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,<br> F: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/ops/function/trait.Fn.html" title="trait core::ops::function::Fn">Fn</a>(Self::<a class="associatedtype" href="trait.TypedValueParser.html#associatedtype.Value" title="type clap::builder::TypedValueParser::Value">Value</a>) -> T + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></h4></section></summary><div class='docblock'><p>Adapt a <code>TypedValueParser</code> from one value to another <a href="trait.TypedValueParser.html#method.map">Read more</a></p>
|
||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_map" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/clap/builder/value_parser.rs.html#806-813">source</a></span><a href="#method.try_map" class="anchor"></a><h4 class="code-header">fn <a href="trait.TypedValueParser.html#method.try_map" class="fnname">try_map</a><T, E, F>(self, func: F) -> TryMapValueParser<Self, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/ops/function/trait.Fn.html" title="trait core::ops::function::Fn">Fn</a>(Self::<a class="associatedtype" href="trait.TypedValueParser.html#associatedtype.Value" title="type clap::builder::TypedValueParser::Value">Value</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, E> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static,<br> T: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,<br> E: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="struct" href="https://doc.rust-lang.org/1.64.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><dyn <a class="trait" href="https://doc.rust-lang.org/1.64.0/std/error/trait.Error.html" title="trait std::error::Error">Error</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static>>, </span></h4></section></summary><div class='docblock'><p>Adapt a <code>TypedValueParser</code> from one value to another <a href="trait.TypedValueParser.html#method.try_map">Read more</a></p>
|
||
</div></details></div></details></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-PossibleValuesParser" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h3></section><section id="impl-Send-for-PossibleValuesParser" class="impl has-srclink"><a href="#impl-Send-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h3></section><section id="impl-Sync-for-PossibleValuesParser" class="impl has-srclink"><a href="#impl-Sync-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h3></section><section id="impl-Unpin-for-PossibleValuesParser" class="impl has-srclink"><a href="#impl-Unpin-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</a></h3></section><section id="impl-UnwindSafe-for-PossibleValuesParser" class="impl has-srclink"><a href="#impl-UnwindSafe-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.PossibleValuesParser.html" title="struct clap::builder::PossibleValuesParser">PossibleValuesParser</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-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/any.rs.html#203">source</a></span><a href="#impl-Any-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </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"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/any.rs.html#204">source</a></span><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.64.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.64.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/borrow.rs.html#209">source</a></span><a href="#impl-Borrow%3CT%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/borrow.rs.html#211">source</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.64.0/std/primitive.reference.html">&</a>T</h4></section></summary><div class='docblock'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.64.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/borrow.rs.html#218">source</a></span><a href="#impl-BorrowMut%3CT%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/1.64.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/borrow.rs.html#219">source</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.64.0/std/primitive.reference.html">&mut </a>T</h4></section></summary><div class='docblock'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.64.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#557">source</a></span><a href="#impl-From%3CT%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#559">source</a></span><a href="#method.from-1" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/convert/trait.From.html#tymethod.from" 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-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#541">source</a></span><a href="#impl-Into%3CU%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.From.html" title="trait core::convert::From">From</a><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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#549">source</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/convert/trait.Into.html#tymethod.into" 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><a href="https://doc.rust-lang.org/1.64.0/core/convert/trait.From.html" title="From">From</a><T> for U</code> chooses to do.</p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/alloc/borrow.rs.html#83">source</a></span><a href="#impl-ToOwned-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.64.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </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 href="https://doc.rust-lang.org/1.64.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'><p>The resulting type after obtaining ownership.</p>
|
||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/alloc/borrow.rs.html#88">source</a></span><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.64.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
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||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/alloc/borrow.rs.html#92">source</a></span><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/1.64.0/std/primitive.reference.html">&mut </a>T)</h4></section></summary><div class='docblock'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.64.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#598">source</a></span><a href="#impl-TryFrom%3CU%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><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 href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#604">source</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'><p>Performs the conversion.</p>
|
||
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-PossibleValuesParser" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#583">source</a></span><a href="#impl-TryInto%3CU%3E-for-PossibleValuesParser" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><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 href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.64.0/src/core/convert/mod.rs.html#589">source</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.64.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.64.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'><p>Performs the conversion.</p>
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