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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="Parsing interface implemented by all types that can be parsed in a default way from a token stream."><title>Parse in syn::parse - 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-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="syn" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.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">☰</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../syn/index.html">syn</a><span class="version">2.0.48</span></h2></div><h2 class="location"><a href="#">Parse</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.parse">parse</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-Parse-for-Box%3CT%3E">Box<T></a></li><li><a href="#impl-Parse-for-Group">Group</a></li><li><a href="#impl-Parse-for-Literal">Literal</a></li><li><a href="#impl-Parse-for-Option%3CAbi%3E">Option<Abi></a></li><li><a href="#impl-Parse-for-Option%3CBoundLifetimes%3E">Option<BoundLifetimes></a></li><li><a href="#impl-Parse-for-Option%3CLabel%3E">Option<Label></a></li><li><a href="#impl-Parse-for-Option%3CT%3E">Option<T></a></li><li><a href="#impl-Parse-for-Option%3CWhereClause%3E">Option<WhereClause></a></li><li><a href="#impl-Parse-for-Punct">Punct</a></li><li><a href="#impl-Parse-for-TokenStream">TokenStream</a></li><li><a href="#impl-Parse-for-TokenTree">TokenTree</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 syn::parse</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="../../syn/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">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="trait" href="#">Parse</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/syn/parse.rs.html#213-215">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub trait Parse: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
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// Required method
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fn <a href="#tymethod.parse" class="fn">parse</a>(input: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self>;
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Parsing interface implemented by all types that can be parsed in a default
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way from a token stream.</p>
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<p>Refer to the <a href="index.html" title="mod syn::parse">module documentation</a> for details about implementing and using
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the <code>Parse</code> trait.</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"><section id="tymethod.parse" class="method"><a class="src rightside" href="../../src/syn/parse.rs.html#214">source</a><h4 class="code-header">fn <a href="#tymethod.parse" class="fn">parse</a>(input: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self></h4></section></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/1.76.0/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-Parse-for-TokenTree" class="impl"><a class="src rightside" href="../../src/syn/parse.rs.html#1189-1196">source</a><a href="#impl-Parse-for-TokenTree" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.Parse.html" title="trait syn::parse::Parse">Parse</a> for <a class="enum" href="../../proc_macro2/enum.TokenTree.html" title="enum proc_macro2::TokenTree">TokenTree</a></h3></section></summary><div class="impl-items"><section id="method.parse" class="method trait-impl"><a class="src rightside" href="../../src/syn/parse.rs.html#1190-1195">source</a><a href="#method.parse" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.parse" class="fn">parse</a>(input: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Parse-for-Option%3CAbi%3E" class="impl"><a class="src rightside" href="../../src/syn/ty.rs.html#984-992">source</a><a href="#impl-Parse-for-Option%3CAbi%3E" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.Parse.html" title="trait syn::parse::Parse">Parse</a> for <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../struct.Abi.html" title="struct syn::Abi">Abi</a>></h3></section></summary><div class="impl-items"><section id="method.parse-1" class="method trait-impl"><a class="src rightside" href="../../src/syn/ty.rs.html#985-991">source</a><a href="#method.parse-1" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.parse" class="fn">parse</a>(input: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Parse-for-Option%3CBoundLifetimes%3E" class="impl"><a class="src rightside" href="../../src/syn/generics.rs.html#696-704">source</a><a href="#impl-Parse-for-Option%3CBoundLifetimes%3E" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.Parse.html" title="trait syn::parse::Parse">Parse</a> for <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="struct" href="../struct.BoundLifetimes.html" title="struct syn::BoundLifetimes">BoundLifetimes</a>></h3></section></summary><div class="impl-items"><section id="method.parse-2" class="method trait-impl"><a class="src rightside" href="../../src/syn/generics.rs.html#697-703">source</a><a href="#method.parse-2" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.parse" class="fn">parse</a>(input: <a class="type"
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