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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="API documentation for the Rust `IdentExt` trait in crate `syn`."><meta name="keywords" content="rust, rustlang, rust-lang, IdentExt"><title>syn::ext::IdentExt - Rust</title><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="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><p class='location'>Trait IdentExt</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.parse_any">parse_any</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>syn</a>::<wbr><a href='index.html'>ext</a></p><script>window.sidebarCurrent = {name: 'IdentExt', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Trait <a href='../index.html'>syn</a>::<wbr><a href='index.html'>ext</a>::<wbr><a class="trait" href=''>IdentExt</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/syn/ext.rs.html#14-48' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait IdentExt: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + Sealed {
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fn <a href='#tymethod.parse_any' class='fnname'>parse_any</a>(input: <a class="type" href="../../syn/parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self>;
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}</pre></div><div class='docblock'><p>Additional parsing methods for <code>Ident</code>.</p>
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<p>This trait is sealed and cannot be implemented for types outside of Syn.</p>
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<p><em>This trait is available if Syn is built with the <code>"parsing"</code> feature.</em></p>
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</div>
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<h2 id='required-methods' class='small-section-header'>
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Required Methods<a href='#required-methods' class='anchor'></a>
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</h2>
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<div class='methods'>
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<h3 id='tymethod.parse_any' class='method'><span id='parse_any.v' class='invisible'><code>fn <a href='#tymethod.parse_any' class='fnname'>parse_any</a>(input: <a class="type" href="../../syn/parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self></code></span></h3><div class='docblock'><p>Parses any identifier including keywords.</p>
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<p>This is useful when parsing a DSL which allows Rust keywords as
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identifiers.</p>
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<pre class="rust rust-example-rendered">
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<span class="attribute">#[<span class="ident">macro_use</span>]</span>
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<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">syn</span>;
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<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">Ident</span>;
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<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">ext</span>::<span class="ident">IdentExt</span>;
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<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Error</span>, <span class="ident">ParseStream</span>, <span class="prelude-ty">Result</span>};
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<span class="comment">// Parses input that looks like `name = NAME` where `NAME` can be</span>
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<span class="comment">// any identifier.</span>
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<span class="comment">//</span>
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<span class="comment">// Examples:</span>
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<span class="comment">//</span>
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<span class="comment">// name = anything</span>
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<span class="comment">// name = impl</span>
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<span class="kw">fn</span> <span class="ident">parse_dsl</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">Ident</span><span class="op">></span> {
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<span class="kw">let</span> <span class="ident">name_token</span>: <span class="ident">Ident</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
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<span class="kw">if</span> <span class="ident">name_token</span> <span class="op">!=</span> <span class="string">"name"</span> {
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<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">name_token</span>.<span class="ident">span</span>(), <span class="string">"expected `name`"</span>));
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}
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<span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token</span><span class="macro">!</span>[<span class="op">=</span>]<span class="op">></span>()<span class="question-mark">?</span>;
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<span class="kw">let</span> <span class="ident">name</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Ident</span>::<span class="ident">parse_any</span>)<span class="question-mark">?</span>;
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<span class="prelude-val">Ok</span>(<span class="ident">name</span>)
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}</pre>
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</div></div><h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><ul class='item-list' id='implementors-list'><li><table class='table-display'><tbody><tr><td><code>impl IdentExt for <a class="struct" href="../../syn/struct.Ident.html" title="struct syn::Ident">Ident</a></code><td><div class='out-of-band'><a class='srclink' href='../../src/syn/ext.rs.html#50-57' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
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</ul><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
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src="../../implementors/syn/ext/trait.IdentExt.js">
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