<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="Parser that can parse Rust tokens into a particular syntax tree node."><title>Parser in syn::parse - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><linkrel="stylesheet"href="../../static.files/normalize-9960930a.css"><linkrel="stylesheet"href="../../static.files/rustdoc-84e720fa.css"><metaname="rustdoc-vars"data-root-path="../../"data-static-root-path="../../static.files/"data-current-crate="syn"data-themes=""data-resource-suffix=""data-rustdoc-version="1.89.0 (29483883e 2025-08-04)"data-channel="1.89.0"data-search-js="search-92309212.js"data-settings-js="settings-5514c975.js"><scriptsrc="../../static.files/storage-4e99c027.js"></script><scriptdefersrc="sidebar-items.js"></script><scriptdefersrc="../../static.files/main-fd3af306.js"></script><noscript><linkrel="stylesheet"href="../../static.files/noscript-32bb7600.css"></noscript><linkrel="alternate icon"type="image/png"href="../../static.files/favicon-32x32-6580c154.png"><linkrel="icon"type="image/svg+xml"href="../../static.files/favicon-044be391.svg"></head><bodyclass="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="mobile-topbar"><buttonclass="sidebar-menu-toggle"title="show sidebar"></button></nav><navclass="sidebar"><divclass="sidebar-crate"><h2><ahref="../../syn/index.html">syn</a><spanclass="version">2.0.106</span></h2></div><divclass="sidebar-elems"><sectionid="rustdoc-toc"><h2class="location"><ahref="#">Parser</a></h2><h3><ahref="#required-associated-types">Required Associated Types</a></h3><ulclass="block"><li><ahref="#associatedtype.Output"title="Output">Output</a></li></ul><h3><ahref="#required-methods">Required Methods</a></h3><ulclass="block"><li><ahref="#tymethod.parse2"title="parse2">parse2</a></li></ul><h3><ahref="#provided-methods">Provided Methods</a></h3><ulclass="block"><li><ahref="#method.parse"title="parse">parse</a></li><li><ahref="#method.parse_str"title="parse_str">parse_str</a></li></ul><h3><ahref="#dyn-compatibility">Dyn Compatibility</a></h3><h3><ahref="#implementors">Implementors</a></h3></section><divid="rustdoc-modnav"><h2><ahref="index.html">In syn::<wbr>parse</a></h2></div></div></nav><divclass="sidebar-resizer"title="Drag to resize sidebar"></div><main><divclass="width-limiter"><rustdoc-search></rustdoc-search><sectionid="main-content"class="content"><divclass="main-heading"><divclass="rustdoc-breadcrumbs"><ahref="../index.html">syn</a>::<wbr><ahref="index.html">parse</a></div><h1>Trait <spanclass="trait">Parser</span><buttonid="copy-path"title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><spanclass="sub-heading"><aclass="src"href="../../src/syn/parse.rs.html#1239-1277">Source</a></span></div><preclass="rust item-decl"><code>pub trait Parser: <aclass="trait"href="https://doc.rust-lang.org/1.89.0/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a> {
}</code></pre><detailsclass="toggle top-doc"open><summaryclass="hideme"><span>Expand description</span></summary><divclass="docblock"><p>Parser that can parse Rust tokens into a particular syntax tree node.</p>
<p>Refer to the <ahref="index.html"title="mod syn::parse">module documentation</a> for details about parsing in Syn.</p>
</div></details><detailsclass="toggle method-toggle"open><summary><sectionid="method.parse_str"class="method"><aclass="src rightside"href="../../src/syn/parse.rs.html#1267-1269">Source</a><h4class="code-header">fn <ahref="#method.parse_str"class="fn">parse_str</a>(self, s: &<aclass="primitive"href="https://doc.rust-lang.org/1.89.0/std/primitive.str.html">str</a>) -><aclass="type"href="../type.Result.html"title="type syn::Result">Result</a><Self::<aclass="associatedtype"href="trait.Parser.html#associatedtype.Output"title="type syn::parse::Parser::Output">Output</a>></h4></section></summary><divclass="docblock"><p>Parse a string of Rust code into the chosen syntax tree node.</p>
</div></details></div><h2id="dyn-compatibility"class="section-header">Dyn Compatibility<ahref="#dyn-compatibility"class="anchor">§</a></h2><divclass="dyn-compatibility-info"><p>This trait is <b>not</b><ahref="https://doc.rust-lang.org/1.89.0/reference/items/traits.html#dyn-compatibility">dyn compatible</a>.</p><p><i>In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.</i></p></div><h2id="implementors"class="section-header">Implementors<ahref="#implementors"class="anchor">§</a></h2><divid="implementors-list"><detailsclass="toggle implementors-toggle"><summary><sectionid="impl-Parser-for-F"class="impl"><aclass="src rightside"href="../../src/syn/parse.rs.html#1286-1321">Source</a><ahref="#impl-Parser-for-F"class="anchor">§</a><h3class="code-header">impl<F, T><aclass="trait"href="trait.Parser.html"title="trait syn::parse::Parser">Parser</a> for F<divclass="where">where
