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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="Parse a set of arguments into a user-defined container."><title>Args in clap - 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-5bc39a1768837dd0.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="clap" data-themes="" data-resource-suffix="" data-rustdoc-version="1.77.0 (aedd173a2 2024-03-17)" data-channel="1.77.0" data-search-js="search-dd67cee4cfa65049.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-4c98445ec4002617.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-48f368f3872407c8.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-04d5337699b92874.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 trait"><!--[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" title="show sidebar"></button><a class="logo-container" href="../clap/index.html"><img src="https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../clap/index.html"><img src="https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png" alt="logo"></a><h2><a href="../clap/index.html">clap</a><span class="version">4.5.4</span></h2></div><h2 class="location"><a href="#">Args</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.augment_args">augment_args</a></li><li><a href="#tymethod.augment_args_for_update">augment_args_for_update</a></li></ul><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.group_id">group_id</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-Args-for-Box%3CT%3E">Box<T></a></li></ul><h3><a href="#object-safety">Object Safety</a></h3><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In crate clap</a></h2></div></nav><div class="sidebar-resizer"></div>
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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="../clap/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>Trait <a href="index.html">clap</a>::<wbr><a class="trait" href="#">Args</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/clap_builder/derive.rs.html#214">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub trait Args: <a class="trait" href="trait.FromArgMatches.html" title="trait clap::FromArgMatches">FromArgMatches</a> + <a class="trait" href="https://doc.rust-lang.org/1.77.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
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// Required methods
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fn <a href="#tymethod.augment_args" class="fn">augment_args</a>(cmd: <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>) -> <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>;
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<span class="item-spacer"></span> fn <a href="#tymethod.augment_args_for_update" class="fn">augment_args_for_update</a>(cmd: <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>) -> <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>;
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// Provided method
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fn <a href="#method.group_id" class="fn">group_id</a>() -> <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.Id.html" title="struct clap::Id">Id</a>> { ... }
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Parse a set of arguments into a user-defined container.</p>
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<p>Implementing this trait lets a parent container delegate argument parsing behavior to <code>Self</code>.
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with:</p>
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<ul>
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<li><code>#[command(flatten)] args: ChildArgs</code>: Attribute can only be used with struct fields that impl
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<code>Args</code>.</li>
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<li><code>Variant(ChildArgs)</code>: No attribute is used with enum variants that impl <code>Args</code>.</li>
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</ul>
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<p><strong>NOTE:</strong> Deriving requires the <code>derive</code> feature flag</p>
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</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.augment_args" class="method"><a class="src rightside" href="../src/clap_builder/derive.rs.html#222">source</a><h4 class="code-header">fn <a href="#tymethod.augment_args" class="fn">augment_args</a>(cmd: <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>) -> <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a></h4></section></summary><div class="docblock"><p>Append to <a href="struct.Command.html" title="struct clap::Command"><code>Command</code></a> so it can instantiate <code>Self</code>.</p>
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<p>See also <a href="trait.CommandFactory.html" title="trait clap::CommandFactory"><code>CommandFactory</code></a>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.augment_args_for_update" class="method"><a class="src rightside" href="../src/clap_builder/derive.rs.html#228">source</a><h4 class="code-header">fn <a href="#tymethod.augment_args_for_update" class="fn">augment_args_for_update</a>(cmd: <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>) -> <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a></h4></section></summary><div class="docblock"><p>Append to <a href="struct.Command.html" title="struct clap::Command"><code>Command</code></a> so it can update <code>self</code>.</p>
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<p>This is used to implement <code>#[command(flatten)]</code></p>
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<p>See also <a href="trait.CommandFactory.html" title="trait clap::CommandFactory"><code>CommandFactory</code></a>.</p>
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</div></details></div><h2 id="provided-methods" class="section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="method.group_id" class="method"><a class="src rightside" href="../src/clap_builder/derive.rs.html#216">source</a><h4 class="code-header">fn <a href="#method.group_id" class="fn">group_id</a>() -> <a class="enum" href="https://doc.rust-lang.org/1.77.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="struct.Id.html" title="struct clap::Id">Id</a>></h4></section></summary><div class="docblock"><p>Report the <a href="struct.ArgGroup.html#method.id" title="method clap::ArgGroup::id"><code>ArgGroup::id</code></a> for this set of arguments</p>
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</div></details></div><h2 id="object-safety" class="section-header">Object Safety<a href="#object-safety" class="anchor">§</a></h2><div class="object-safety-info">This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.77.0/reference/items/traits.html#object-safety">object safe</a>.</div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-Args-for-Box%3CT%3E" class="impl"><a class="src rightside" href="../src/clap_builder/derive.rs.html#337">source</a><a href="#impl-Args-for-Box%3CT%3E" class="anchor">§</a><h3 class="code-header">impl<T> <a class="trait" href="trait.Args.html" title="trait clap::Args">Args</a> for <a class="struct" href="https://doc.rust-lang.org/1.77.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a><T><div class="where">where
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T: <a class="trait" href="trait.Args.html" title="trait clap::Args">Args</a>,</div></h3></section></summary><div class="impl-items"><section id="method.augment_args" class="method trait-impl"><a class="src rightside" href="../src/clap_builder/derive.rs.html#338">source</a><a href="#method.augment_args" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.augment_args" class="fn">augment_args</a>(cmd: <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>) -> <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a></h4></section><section id="method.augment_args_for_update" class="method trait-impl"><a class="src rightside" href="../src/clap_builder/derive.rs.html#341">source</a><a href="#method.augment_args_for_update" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.augment_args_for_update" class="fn">augment_args_for_update</a>(cmd: <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a>) -> <a class="struct" href="struct.Command.html" title="struct clap::Command">Command</a></h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../trait.impl/clap_builder/derive/trait.Args.js" data-ignore-extern-crates="alloc" async></script></section></div></main></body></html> |