<!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 `Attribute` struct in crate `syn`."> <meta name="keywords" content="rust, rustlang, rust-lang, Attribute"> <title>syn::Attribute - 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="../main.css" id="themeStyle"> <script src="../storage.js"></script> </head> <body class="rustdoc struct"> <!--[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'>Struct Attribute</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#fields">Fields</a><div class="sidebar-links"><a href="#structfield.style">style</a><a href="#structfield.value">value</a><a href="#structfield.is_sugared_doc">is_sugared_doc</a></div><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.name">name</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-ToTokens">ToTokens</a><a href="#impl-Debug">Debug</a><a href="#impl-Clone">Clone</a><a href="#impl-Eq">Eq</a><a href="#impl-PartialEq">PartialEq</a><a href="#impl-Hash">Hash</a></div></div><p class='location'><a href='index.html'>syn</a></p><script>window.sidebarCurrent = {name: 'Attribute', ty: 'struct', 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"> </div> </form> </nav> <section id='main' class="content"> <h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>syn</a>::<wbr><a class="struct" href=''>Attribute</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/attr.rs.html#7-11' title='goto source code'>[src]</a></span></h1> <pre class='rust struct'>pub struct Attribute { pub style: <a class="enum" href="../syn/enum.AttrStyle.html" title="enum syn::AttrStyle">AttrStyle</a>, pub value: <a class="enum" href="../syn/enum.MetaItem.html" title="enum syn::MetaItem">MetaItem</a>, pub is_sugared_doc: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, }</pre><div class='docblock'><p>Doc-comments are promoted to attributes that have <code>is_sugared_doc</code> = true</p> </div><h2 id='fields' class='fields small-section-header'> Fields<a href='#fields' class='anchor'></a></h2><span id="structfield.style" class="structfield small-section-header"> <a href="#structfield.style" class="anchor field"></a> <span id="style.v" class='invisible'> <code>style: <a class="enum" href="../syn/enum.AttrStyle.html" title="enum syn::AttrStyle">AttrStyle</a></code> </span></span><span id="structfield.value" class="structfield small-section-header"> <a href="#structfield.value" class="anchor field"></a> <span id="value.v" class='invisible'> <code>value: <a class="enum" href="../syn/enum.MetaItem.html" title="enum syn::MetaItem">MetaItem</a></code> </span></span><span id="structfield.is_sugared_doc" class="structfield small-section-header"> <a href="#structfield.is_sugared_doc" class="anchor field"></a> <span id="is_sugared_doc.v" class='invisible'> <code>is_sugared_doc: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code> </span></span> <h2 id='methods' class='small-section-header'> Methods<a href='#methods' class='anchor'></a> </h2> <h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#13-17' title='goto source code'>[src]</a></span></h3> <div class='impl-items'><h4 id='method.name' class="method"><span id='name.v' class='invisible'><code>pub fn <a href='#method.name' class='fnname'>name</a>(&self) -> &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#14-16' title='goto source code'>[src]</a></span></h4> </div> <h2 id='implementations' class='small-section-header'> Trait Implementations<a href='#implementations' class='anchor'></a> </h2> <h3 id='impl-ToTokens' class='impl'><span class='in-band'><code>impl <a class="trait" href="../quote/to_tokens/trait.ToTokens.html" title="trait quote::to_tokens::ToTokens">ToTokens</a> for <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl-ToTokens' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#233-270' title='goto source code'>[src]</a></span></h3> <div class='impl-items'><h4 id='method.to_tokens' class="method"><span id='to_tokens.v' class='invisible'><code>fn <a href='../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens' class='fnname'>to_tokens</a>(&self, tokens: &mut <a class="struct" href="../quote/tokens/struct.Tokens.html" title="struct quote::tokens::Tokens">Tokens</a>)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#234-269' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>Write <code>self</code> to the given <code>Tokens</code>. <a href="../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens">Read more</a></p> </div></div><h3 id='impl-Debug' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl-Debug' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h3> <div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, __arg_0: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p> </div></div><h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h3> <div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p> </div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p> </div></div><h3 id='impl-Eq' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl-Eq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h3> <div class='impl-items'></div><h3 id='impl-PartialEq' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> for <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl-PartialEq' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h3> <div class='impl-items'><h4 id='method.eq' class="method"><span id='eq.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, __arg_0: &<a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p> </div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, __arg_0: &<a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>This method tests for <code>!=</code>.</p> </div></div><h3 id='impl-Hash' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> for <a class="struct" href="../syn/struct.Attribute.html" title="struct syn::Attribute">Attribute</a></code><a href='#impl-Hash' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h3> <div class='impl-items'><h4 id='method.hash' class="method"><span id='hash.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash' class='fnname'>hash</a><__H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>>(&self, __arg_0: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>__H)</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/syn/attr.rs.html#6' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>Feeds this value into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash">Read more</a></p> </div><h4 id='method.hash_slice' class="method"><span id='hash_slice.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice' class='fnname'>hash_slice</a><H>(data: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[Self]</a>, state: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>H) <span class="where fmt-newline">where<br> H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>, </span></code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.3.0'>1.3.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/hash/mod.rs.html#202-208' title='goto source code'>[src]</a></span></h4> <div class='docblock'><p>Feeds a slice of this type into the given [<code>Hasher</code>]. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice">Read more</a></p> </div></div></section> <section id='search' class="content hidden"></section> <section class="footer"></section> <aside id="help" class="hidden"> <div> <h1 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