<main><divclass="width-limiter"><navclass="sub"><formclass="search-form"><span></span><divid="sidebar-button"tabindex="-1"><ahref="../clap_derive/all.html"title="show sidebar"></a></div><inputclass="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"><divid="help-button"tabindex="-1"><ahref="../help.html"title="help">?</a></div><divid="settings-menu"tabindex="-1"><ahref="../settings.html"title="settings"><imgwidth="22"height="22"alt="Change settings"src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><sectionid="main-content"class="content"><divclass="main-heading"><h1>Derive Macro <ahref="index.html">clap_derive</a>::<wbr><aclass="derive"href="#">Parser</a><buttonid="copy-path"title="Copy item path to clipboard"><imgsrc="../static.files/clipboard-7571035ce49a181d.svg"width="19"height="18"alt="Copy item path"></button></h1><spanclass="out-of-band"><aclass="src"href="../src/clap_derive/lib.rs.html#53-81">source</a> · <buttonid="toggle-all-docs"title="collapse all docs">[<span>−</span>]</button></span></div><preclass="rust item-decl"><code>#[derive(Parser)]
{
<spanclass="comment">// Attributes available to this derive:</span>
#[clap]
#[structopt]
#[command]
#[arg]
#[group]
}
</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>Generates the <code>Parser</code> implementation.</p>
<p>This is far less verbose than defining the <code>clap::Command</code> struct manually,
receiving an instance of <code>clap::ArgMatches</code> from conducting parsing, and then
implementing a conversion code to instantiate an instance of the user
