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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="Lifetimes and type parameters attached to a declaration of a function, enum, trait, etc."><meta name="keywords" content="rust, rustlang, rust-lang, Generics"><title>Generics in syn - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Semibold.ttf.woff2"><link 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class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../syn/index.html"><div class="logo-container"><img class="rust-logo" src="../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">Generics</a></h2><div class="sidebar-elems"><section><h3><a href="#fields">Fields</a></h3><ul class="block"><li><a href="#structfield.gt_token">gt_token</a></li><li><a href="#structfield.lt_token">lt_token</a></li><li><a href="#structfield.params">params</a></li><li><a href="#structfield.where_clause">where_clause</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.const_params">const_params</a></li><li><a href="#method.const_params_mut">const_params_mut</a></li><li><a href="#method.lifetimes">lifetimes</a></li><li><a href="#method.lifetimes_mut">lifetimes_mut</a></li><li><a href="#method.make_where_clause">make_where_clause</a></li><li><a href="#method.split_for_impl">split_for_impl</a></li><li><a href="#method.type_params">type_params</a></li><li><a href="#method.type_params_mut">type_params_mut</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Clone-for-Generics">Clone</a></li><li><a href="#impl-Debug-for-Generics">Debug</a></li><li><a href="#impl-Default-for-Generics">Default</a></li><li><a href="#impl-Eq-for-Generics">Eq</a></li><li><a href="#impl-Hash-for-Generics">Hash</a></li><li><a href="#impl-Parse-for-Generics">Parse</a></li><li><a href="#impl-PartialEq%3CGenerics%3E-for-Generics">PartialEq&lt;Generics&gt;</a></li><li><a href="#impl-ToTokens-for-Generics">ToTokens</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-Generics">RefUnwindSafe</a></li><li><a href="#impl-Send-for-Generics">!Send</a></li><li><a href="#impl-Sync-for-Generics">!Sync</a></li><li><a href="#impl-Unpin-for-Generics">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Generics">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-Generics">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-Generics">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-Generics">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-Generics">From&lt;T&gt;</a></li><li><a href="#impl-Into%3CU%3E-for-Generics">Into&lt;U&gt;</a></li><li><a href="#impl-Spanned-for-Generics">Spanned</a></li><li><a href="#impl-ToOwned-for-Generics">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-Generics">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-Generics">TryInto&lt;U&gt;</a></li></ul></section><h2><a href="index.html">In syn</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="index.html">syn</a>::<wbr><a class="struct" href="#">Generics</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../src/syn/generics.rs.html#9-26">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">&#x2212;</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct Generics {
pub lt_token: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="token/struct.Lt.html" title="struct syn::token::Lt">Lt</a>&gt;,
pub params: <a class="struct" href="punctuated/struct.Punctuated.html" title="struct syn::punctuated::Punctuated">Punctuated</a>&lt;<a class="enum" href="enum.GenericParam.html" title="enum syn::GenericParam">GenericParam</a>, <a class="struct" href="token/struct.Comma.html" title="struct syn::token::Comma">Comma</a>&gt;,
pub gt_token: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="token/struct.Gt.html" title="struct syn::token::Gt">Gt</a>&gt;,
pub where_clause: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="struct.WhereClause.html" title="struct syn::WhereClause">WhereClause</a>&gt;,
}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Lifetimes and type parameters attached to a declaration of a function,
enum, trait, etc.</p>
<p>This struct represents two distinct optional syntactic elements,
<a href="https://doc.rust-lang.org/stable/reference/items/generics.html#generic-parameters">generic parameters</a> and <a href="https://doc.rust-lang.org/stable/reference/items/generics.html#where-clauses">where clause</a>. In some locations of the
grammar, there may be other tokens in between these two things.</p>
</div></details><h2 id="fields" class="fields small-section-header">Fields<a href="#fields" class="anchor"></a></h2><span id="structfield.lt_token" class="structfield small-section-header"><a href="#structfield.lt_token" class="anchor field"></a><code>lt_token: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="token/struct.Lt.html" title="struct syn::token::Lt">Lt</a>&gt;</code></span><span id="structfield.params" class="structfield small-section-header"><a href="#structfield.params" class="anchor field"></a><code>params: <a class="struct" href="punctuated/struct.Punctuated.html" title="struct syn::punctuated::Punctuated">Punctuated</a>&lt;<a class="enum" href="enum.GenericParam.html" title="enum syn::GenericParam">GenericParam</a>, <a class="struct" href="token/struct.Comma.html" title="struct syn::token::Comma">Comma</a>&gt;</code></span><span id="structfield.gt_token" class="structfield small-section-header"><a href="#structfield.gt_token" class="anchor field"></a><code>gt_token: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="token/struct.Gt.html" title="struct syn::token::Gt">Gt</a>&gt;</code></span><span id="structfield.where_clause" class="structfield small-section-header"><a href="#structfield.where_clause" class="anchor field"></a><code>where_clause: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="struct.WhereClause.html" title="struct syn::WhereClause">WhereClause</a>&gt;</code></span><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#99-173">source</a><a href="#impl-Generics" class="anchor"></a><h3 class="code-header">impl <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.lifetimes" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#107-109">source</a><h4 class="code-header">pub fn <a href="#method.lifetimes" class="fnname">lifetimes</a>(&amp;self) -&gt; Lifetimes&lt;'_&gt;</h4></section></summary><div class="docblock"><p>Returns an
<code
style="padding-right:0;">Iterator&lt;Item = &amp;</code><a
href="struct.LifetimeParam.html"><code
style="padding-left:0;padding-right:0;">LifetimeParam</code></a><code
style="padding-left:0;">&gt;</code>
over the lifetime parameters in <code>self.params</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.lifetimes_mut" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#118-120">source</a><h4 class="code-header">pub fn <a href="#method.lifetimes_mut" class="fnname">lifetimes_mut</a>(&amp;mut self) -&gt; LifetimesMut&lt;'_&gt;</h4></section></summary><div class="docblock"><p>Returns an
<code
style="padding-right:0;">Iterator&lt;Item = &amp;mut </code><a
href="struct.LifetimeParam.html"><code
style="padding-left:0;padding-right:0;">LifetimeParam</code></a><code
style="padding-left:0;">&gt;</code>
over the lifetime parameters in <code>self.params</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_params" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#129-131">source</a><h4 class="code-header">pub fn <a href="#method.type_params" class="fnname">type_params</a>(&amp;self) -&gt; TypeParams&lt;'_&gt;</h4></section></summary><div class="docblock"><p>Returns an
<code
style="padding-right:0;">Iterator&lt;Item = &amp;</code><a
href="struct.TypeParam.html"><code
style="padding-left:0;padding-right:0;">TypeParam</code></a><code
style="padding-left:0;">&gt;</code>
over the type parameters in <code>self.params</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_params_mut" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#140-142">source</a><h4 class="code-header">pub fn <a href="#method.type_params_mut" class="fnname">type_params_mut</a>(&amp;mut self) -&gt; TypeParamsMut&lt;'_&gt;</h4></section></summary><div class="docblock"><p>Returns an
<code
style="padding-right:0;">Iterator&lt;Item = &amp;mut </code><a
href="struct.TypeParam.html"><code
style="padding-left:0;padding-right:0;">TypeParam</code></a><code
style="padding-left:0;">&gt;</code>
over the type parameters in <code>self.params</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.const_params" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#151-153">source</a><h4 class="code-header">pub fn <a href="#method.const_params" class="fnname">const_params</a>(&amp;self) -&gt; ConstParams&lt;'_&gt;</h4></section></summary><div class="docblock"><p>Returns an
<code
style="padding-right:0;">Iterator&lt;Item = &amp;</code><a
href="struct.ConstParam.html"><code
style="padding-left:0;padding-right:0;">ConstParam</code></a><code
style="padding-left:0;">&gt;</code>
over the constant parameters in <code>self.params</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.const_params_mut" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#162-164">source</a><h4 class="code-header">pub fn <a href="#method.const_params_mut" class="fnname">const_params_mut</a>(&amp;mut self) -&gt; ConstParamsMut&lt;'_&gt;</h4></section></summary><div class="docblock"><p>Returns an
<code
style="padding-right:0;">Iterator&lt;Item = &amp;mut </code><a
href="struct.ConstParam.html"><code
style="padding-left:0;padding-right:0;">ConstParam</code></a><code
style="padding-left:0;">&gt;</code>
over the constant parameters in <code>self.params</code>.</p>
</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.make_where_clause" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#167-172">source</a><h4 class="code-header">pub fn <a href="#method.make_where_clause" class="fnname">make_where_clause</a>(&amp;mut self) -&gt; &amp;mut <a class="struct" href="struct.WhereClause.html" title="struct syn::WhereClause">WhereClause</a></h4></section></summary><div class="docblock"><p>Initializes an empty <code>where</code>-clause if there is not one present already.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Generics-1" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#308-338">source</a><a href="#impl-Generics-1" class="anchor"></a><h3 class="code-header">impl <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.split_for_impl" class="method has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#331-337">source</a><h4 class="code-header">pub fn <a href="#method.split_for_impl" class="fnname">split_for_impl</a>(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;self<br>) -&gt; (<a class="struct" href="struct.ImplGenerics.html" title="struct syn::ImplGenerics">ImplGenerics</a>&lt;'_&gt;, <a class="struct" href="struct.TypeGenerics.html" title="struct syn::TypeGenerics">TypeGenerics</a>&lt;'_&gt;, <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;<a class="struct" href="struct.WhereClause.html" title="struct syn::WhereClause">WhereClause</a>&gt;)</h4></section></summary><div class="docblock"><p>Split a type’s generics into the pieces required for impl’ing a trait
for that type.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>(impl_generics, ty_generics, where_clause) = generics.split_for_impl();
<span class="macro">quote! </span>{
<span class="kw">impl </span>#impl_generics MyTrait <span class="kw">for </span>#name #ty_generics #where_clause {
<span class="comment">// ...
</span>}
}</code></pre></div>
</div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Clone-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/clone.rs.html#951-960">source</a><a href="#impl-Clone-for-Generics" class="anchor"></a><h3 class="code-header">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="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/clone.rs.html#952-959">source</a><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&amp;self) -&gt; Self</h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/clone.rs.html#132-134">source</a></span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">const fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&amp;mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Self)</h4></section></summary><div class='docblock'>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></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/debug.rs.html#1395-1404">source</a><a href="#impl-Debug-for-Generics" class="anchor"></a><h3 class="code-header">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="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/debug.rs.html#1396-1403">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&amp;self, formatter: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>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></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Default-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#88-97">source</a><a href="#impl-Default-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.default" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#89-96">source</a><a href="#method.default" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default" class="fnname">default</a>() -&gt; Self</h4></section></summary><div class='docblock'>Returns the “default value” for a type. <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Hash-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/hash.rs.html#1251-1261">source</a><a href="#impl-Hash-for-Generics" class="anchor"></a><h3 class="code-header">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="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.hash" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/hash.rs.html#1252-1260">source</a><a href="#method.hash" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash" class="fnname">hash</a>&lt;H&gt;(&amp;self, state: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>H)<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>,</span></h4></section></summary><div class='docblock'>Feeds this value into the given <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="Hasher"><code>Hasher</code></a>. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#tymethod.hash">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.hash_slice" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.3.0">1.3.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/hash/mod.rs.html#237-239">source</a></span><a href="#method.hash_slice" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice" class="fnname">hash_slice</a>&lt;H&gt;(data: &amp;<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">&amp;mut </a>H)<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;H: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="trait core::hash::Hasher">Hasher</a>,</span></h4></section></summary><div class='docblock'>Feeds a slice of this type into the given <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hasher.html" title="Hasher"><code>Hasher</code></a>. <a href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html#method.hash_slice">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Parse-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#539-599">source</a><a href="#impl-Parse-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="parse/trait.Parse.html" title="trait syn::parse::Parse">Parse</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><section id="method.parse" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#540-598">source</a><a href="#method.parse" class="anchor"></a><h4 class="code-header">fn <a href="parse/trait.Parse.html#tymethod.parse" class="fnname">parse</a>(input: <a class="type" href="parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a>&lt;'_&gt;) -&gt; <a class="type" href="parse/type.Result.html" title="type syn::parse::Result">Result</a>&lt;Self&gt;</h4></section></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CGenerics%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/eq.rs.html#941-946">source</a><a href="#impl-PartialEq%3CGenerics%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;<a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a>&gt; for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/eq.rs.html#942-945">source</a><a href="#method.eq" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq" class="fnname">eq</a>(&amp;self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>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></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#227">source</a></span><a href="#method.ne" class="anchor"></a><h4 class="code-header">const fn <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne" class="fnname">ne</a>(&amp;self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>Rhs) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
sufficient, and should not be overridden without very good reason. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-ToTokens-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#981-1013">source</a><a href="#impl-ToTokens-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="../quote/to_tokens/trait.ToTokens.html" title="trait quote::to_tokens::ToTokens">ToTokens</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_tokens" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/generics.rs.html#982-1012">source</a><a href="#method.to_tokens" class="anchor"></a><h4 class="code-header">fn <a href="../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens" class="fnname">to_tokens</a>(&amp;self, tokens: &amp;mut <a class="struct" href="../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>)</h4></section></summary><div class='docblock'>Write <code>self</code> to the given <code>TokenStream</code>. <a href="../quote/to_tokens/trait.ToTokens.html#tymethod.to_tokens">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_token_stream" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/quote/to_tokens.rs.html#59">source</a><a href="#method.to_token_stream" class="anchor"></a><h4 class="code-header">fn <a href="../quote/to_tokens/trait.ToTokens.html#method.to_token_stream" class="fnname">to_token_stream</a>(&amp;self) -&gt; <a class="struct" href="../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></h4></section></summary><div class='docblock'>Convert <code>self</code> directly into a <code>TokenStream</code> object. <a href="../quote/to_tokens/trait.ToTokens.html#method.to_token_stream">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into_token_stream" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/quote/to_tokens.rs.html#69-71">source</a><a href="#method.into_token_stream" class="anchor"></a><h4 class="code-header">fn <a href="../quote/to_tokens/trait.ToTokens.html#method.into_token_stream" class="fnname">into_token_stream</a>(self) -&gt; <a class="struct" href="../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></h4></section></summary><div class='docblock'>Convert <code>self</code> directly into a <code>TokenStream</code> object. <a href="../quote/to_tokens/trait.ToTokens.html#method.into_token_stream">Read more</a></div></details></div></details><section id="impl-Eq-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/gen/eq.rs.html#938">source</a><a href="#impl-Eq-for-Generics" class="anchor"></a><h3 class="code-header">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="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Generics" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section><section id="impl-Send-for-Generics" class="impl has-srclink"><a href="#impl-Send-for-Generics" class="anchor"></a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section><section id="impl-Sync-for-Generics" class="impl has-srclink"><a href="#impl-Sync-for-Generics" class="anchor"></a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section><section id="impl-Unpin-for-Generics" class="impl has-srclink"><a href="#impl-Unpin-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section><section id="impl-UnwindSafe-for-Generics" class="impl has-srclink"><a href="#impl-UnwindSafe-for-Generics" class="anchor"></a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Generics.html" title="struct syn::Generics">Generics</a></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#200">source</a><a href="#impl-Any-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#201">source</a><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#211">source</a><a href="#impl-Borrow%3CT%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213">source</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</a>T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220">source</a><a href="#impl-BorrowMut%3CT%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221">source</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#733">source</a><a href="#impl-From%3CT%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#736">source</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#717">source</a><a href="#impl-Into%3CU%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#725">source</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Spanned-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="../src/syn/spanned.rs.html#104-108">source</a><a href="#impl-Spanned-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="spanned/trait.Spanned.html" title="trait syn::spanned::Spanned">Spanned</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: Spanned + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.span" class="method trait-impl has-srclink"><a class="srclink rightside" href="../src/syn/spanned.rs.html#105-107">source</a><a href="#method.span" class="anchor"></a><h4 class="code-header">fn <a href="spanned/trait.Spanned.html#tymethod.span" class="fnname">span</a>(&amp;self) -&gt; <a class="struct" href="../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a></h4></section></summary><div class='docblock'>Returns a <code>Span</code> covering the complete contents of this syntax tree
node, or <a href="../proc_macro2/struct.Span.html#method.call_site"><code>Span::call_site()</code></a> if this node is empty. <a href="spanned/trait.Spanned.html#tymethod.span">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#83">source</a><a href="#impl-ToOwned-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Owned" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&amp;self) -&gt; T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&amp;self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#775">source</a><a href="#impl-TryFrom%3CU%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#781">source</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-Generics" class="impl has-srclink"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#760">source</a><a href="#impl-TryInto%3CU%3E-for-Generics" class="anchor"></a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#766">source</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../" data-current-crate="syn" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>