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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="A literal string (`&quot;hello&quot;`), byte string (`b&quot;hello&quot;`), character (`&#x27;a&#x27;`), byte character (`b&#x27;a&#x27;`), an integer or floating point number with or without a suffix (`1`, `1u8`, `2.3`, `2.3f32`)."><title>Literal in proc_macro2 - 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 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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 struct"><!--[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">&#9776;</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../proc_macro2/index.html">proc_macro2</a><span class="version">1.0.78</span></h2></div><h2 class="location"><a href="#">Literal</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.byte_string">byte_string</a></li><li><a href="#method.character">character</a></li><li><a href="#method.f32_suffixed">f32_suffixed</a></li><li><a href="#method.f32_unsuffixed">f32_unsuffixed</a></li><li><a href="#method.f64_suffixed">f64_suffixed</a></li><li><a href="#method.f64_unsuffixed">f64_unsuffixed</a></li><li><a href="#method.i128_suffixed">i128_suffixed</a></li><li><a href="#method.i128_unsuffixed">i128_unsuffixed</a></li><li><a href="#method.i16_suffixed">i16_suffixed</a></li><li><a href="#method.i16_unsuffixed">i16_unsuffixed</a></li><li><a href="#method.i32_suffixed">i32_suffixed</a></li><li><a href="#method.i32_unsuffixed">i32_unsuffixed</a></li><li><a href="#method.i64_suffixed">i64_suffixed</a></li><li><a href="#method.i64_unsuffixed">i64_unsuffixed</a></li><li><a href="#method.i8_suffixed">i8_suffixed</a></li><li><a href="#method.i8_unsuffixed">i8_unsuffixed</a></li><li><a href="#method.isize_suffixed">isize_suffixed</a></li><li><a href="#method.isize_unsuffixed">isize_unsuffixed</a></li><li><a href="#method.set_span">set_span</a></li><li><a href="#method.span">span</a></li><li><a href="#method.string">string</a></li><li><a href="#method.subspan">subspan</a></li><li><a href="#method.u128_suffixed">u128_suffixed</a></li><li><a href="#method.u128_unsuffixed">u128_unsuffixed</a></li><li><a href="#method.u16_suffixed">u16_suffixed</a></li><li><a href="#method.u16_unsuffixed">u16_unsuffixed</a></li><li><a href="#method.u32_suffixed">u32_suffixed</a></li><li><a href="#method.u32_unsuffixed">u32_unsuffixed</a></li><li><a href="#method.u64_suffixed">u64_suffixed</a></li><li><a href="#method.u64_unsuffixed">u64_unsuffixed</a></li><li><a href="#method.u8_suffixed">u8_suffixed</a></li><li><a href="#method.u8_unsuffixed">u8_unsuffixed</a></li><li><a href="#method.usize_suffixed">usize_suffixed</a></li><li><a href="#method.usize_unsuffixed">usize_unsuffixed</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Clone-for-Literal">Clone</a></li><li><a href="#impl-Debug-for-Literal">Debug</a></li><li><a href="#impl-Display-for-Literal">Display</a></li><li><a href="#impl-From%3CLiteral%3E-for-TokenTree">From&lt;Literal&gt;</a></li><li><a href="#impl-FromStr-for-Literal">FromStr</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-Send-for-Literal">!Send</a></li><li><a href="#impl-Sync-for-Literal">!Sync</a></li><li><a href="#impl-RefUnwindSafe-for-Literal">RefUnwindSafe</a></li><li><a href="#impl-Unpin-for-Literal">Unpin</a></li><li><a href="#impl-UnwindSafe-for-Literal">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-From%3CT%3E-for-T">From&lt;T&gt;</a></li><li><a href="#impl-Into%3CU%3E-for-T">Into&lt;U&gt;</a></li><li><a href="#impl-ToOwned-for-T">ToOwned</a></li><li><a href="#impl-ToString-for-T">ToString</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto&lt;U&gt;</a></li></ul></section><h2><a href="index.html">In crate proc_macro2</a></h2></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../proc_macro2/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>Struct <a href="index.html">proc_macro2</a>::<wbr><a class="struct" href="#">Literal</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/proc_macro2/lib.rs.html#1064-1067">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub struct Literal { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A literal string (<code>&quot;hello&quot;</code>), byte string (<code>b&quot;hello&quot;</code>), character (<code>'a'</code>),
byte character (<code>b'a'</code>), an integer or floating point number with or without
a suffix (<code>1</code>, <code>1u8</code>, <code>2.3</code>, <code>2.3f32</code>).</p>
<p>Boolean literals like <code>true</code> and <code>false</code> do not belong here, they are
<code>Ident</code>s.</p>
</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Literal" class="impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1109-1272">source</a><a href="#impl-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.u8_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.u8_suffixed" class="fn">u8_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u8.html">u8</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u16_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.u16_suffixed" class="fn">u16_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u16.html">u16</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u32_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.u32_suffixed" class="fn">u32_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u32.html">u32</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u64_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.u64_suffixed" class="fn">u64_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u64.html">u64</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u128_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.u128_suffixed" class="fn">u128_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u128.html">u128</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.usize_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.usize_suffixed" class="fn">usize_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i8_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.i8_suffixed" class="fn">i8_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i8.html">i8</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i16_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.i16_suffixed" class="fn">i16_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i16.html">i16</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i32_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.i32_suffixed" class="fn">i32_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i32.html">i32</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i64_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.i64_suffixed" class="fn">i64_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i128_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.i128_suffixed" class="fn">i128_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i128.html">i128</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.isize_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1124-1137">source</a><h4 class="code-header">pub fn <a href="#method.isize_suffixed" class="fn">isize_suffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.isize.html">isize</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1u32</code> where the integer
value specified is the first part of the token and the integral is
also suffixed at the end. Literals created from negative numbers may
not survive roundtrips through <code>TokenStream</code> or strings and may be
broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u8_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.u8_unsuffixed" class="fn">u8_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u8.html">u8</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u16_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.u16_unsuffixed" class="fn">u16_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u16.html">u16</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u32_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.u32_unsuffixed" class="fn">u32_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u32.html">u32</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u64_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.u64_unsuffixed" class="fn">u64_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u64.html">u64</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.u128_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.u128_unsuffixed" class="fn">u128_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u128.html">u128</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.usize_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.usize_unsuffixed" class="fn">usize_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i8_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.i8_unsuffixed" class="fn">i8_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i8.html">i8</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i16_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.i16_unsuffixed" class="fn">i16_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i16.html">i16</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i32_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.i32_unsuffixed" class="fn">i32_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i32.html">i32</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i64_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.i64_unsuffixed" class="fn">i64_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i64.html">i64</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.i128_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.i128_unsuffixed" class="fn">i128_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.i128.html">i128</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.isize_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1139-1152">source</a><h4 class="code-header">pub fn <a href="#method.isize_unsuffixed" class="fn">isize_unsuffixed</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.isize.html">isize</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed integer literal with the specified value.</p>
<p>This function will create an integer like <code>1</code> where the integer
value specified is the first part of the token. No suffix is
specified on this token, meaning that invocations like
<code>Literal::i8_unsuffixed(1)</code> are equivalent to
<code>Literal::u32_unsuffixed(1)</code>. Literals created from negative numbers
may not survive roundtrips through <code>TokenStream</code> or strings and may
be broken into two tokens (<code>-</code> and positive literal).</p>
<p>Literals created through this method have the <code>Span::call_site()</code>
span by default, which can be configured with the <code>set_span</code> method
below.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.f64_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1167-1170">source</a><h4 class="code-header">pub fn <a href="#method.f64_unsuffixed" class="fn">f64_unsuffixed</a>(f: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.f64.html">f64</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed floating-point literal.</p>
<p>This constructor is similar to those like <code>Literal::i8_unsuffixed</code> where
the float’s value is emitted directly into the token but no suffix is
used, so it may be inferred to be a <code>f64</code> later in the compiler.
Literals created from negative numbers may not survive round-trips
through <code>TokenStream</code> or strings and may be broken into two tokens (<code>-</code>
and positive literal).</p>
<h5 id="panics"><a href="#panics">Panics</a></h5>
<p>This function requires that the specified float is finite, for example
if it is infinity or NaN this function will panic.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.f64_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1185-1188">source</a><h4 class="code-header">pub fn <a href="#method.f64_suffixed" class="fn">f64_suffixed</a>(f: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.f64.html">f64</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed floating-point literal.</p>
<p>This constructor will create a literal like <code>1.0f64</code> where the value
specified is the preceding part of the token and <code>f64</code> is the suffix of
the token. This token will always be inferred to be an <code>f64</code> in the
compiler. Literals created from negative numbers may not survive
round-trips through <code>TokenStream</code> or strings and may be broken into two
tokens (<code>-</code> and positive literal).</p>
<h5 id="panics-1"><a href="#panics-1">Panics</a></h5>
<p>This function requires that the specified float is finite, for example
if it is infinity or NaN this function will panic.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.f32_unsuffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1203-1206">source</a><h4 class="code-header">pub fn <a href="#method.f32_unsuffixed" class="fn">f32_unsuffixed</a>(f: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.f32.html">f32</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new unsuffixed floating-point literal.</p>
<p>This constructor is similar to those like <code>Literal::i8_unsuffixed</code> where
the float’s value is emitted directly into the token but no suffix is
used, so it may be inferred to be a <code>f64</code> later in the compiler.
Literals created from negative numbers may not survive round-trips
through <code>TokenStream</code> or strings and may be broken into two tokens (<code>-</code>
and positive literal).</p>
<h5 id="panics-2"><a href="#panics-2">Panics</a></h5>
<p>This function requires that the specified float is finite, for example
if it is infinity or NaN this function will panic.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.f32_suffixed" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1221-1224">source</a><h4 class="code-header">pub fn <a href="#method.f32_suffixed" class="fn">f32_suffixed</a>(f: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.f32.html">f32</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Creates a new suffixed floating-point literal.</p>
<p>This constructor will create a literal like <code>1.0f32</code> where the value
specified is the preceding part of the token and <code>f32</code> is the suffix of
the token. This token will always be inferred to be an <code>f32</code> in the
compiler. Literals created from negative numbers may not survive
round-trips through <code>TokenStream</code> or strings and may be broken into two
tokens (<code>-</code> and positive literal).</p>
<h5 id="panics-3"><a href="#panics-3">Panics</a></h5>
<p>This function requires that the specified float is finite, for example
if it is infinity or NaN this function will panic.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.string" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1227-1229">source</a><h4 class="code-header">pub fn <a href="#method.string" class="fn">string</a>(string: &amp;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.str.html">str</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>String literal.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.character" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1232-1234">source</a><h4 class="code-header">pub fn <a href="#method.character" class="fn">character</a>(ch: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.char.html">char</a>) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Character literal.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.byte_string" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1237-1239">source</a><h4 class="code-header">pub fn <a href="#method.byte_string" class="fn">byte_string</a>(s: &amp;[<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.u8.html">u8</a>]) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class="docblock"><p>Byte string literal.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.span" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1242-1244">source</a><h4 class="code-header">pub fn <a href="#method.span" class="fn">span</a>(&amp;self) -&gt; <a class="struct" href="struct.Span.html" title="struct proc_macro2::Span">Span</a></h4></section></summary><div class="docblock"><p>Returns the span encompassing this literal.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.set_span" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1247-1249">source</a><h4 class="code-header">pub fn <a href="#method.set_span" class="fn">set_span</a>(&amp;mut self, span: <a class="struct" href="struct.Span.html" title="struct proc_macro2::Span">Span</a>)</h4></section></summary><div class="docblock"><p>Configures the span associated for this literal.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.subspan" class="method"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1260-1262">source</a><h4 class="code-header">pub fn <a href="#method.subspan" class="fn">subspan</a>&lt;R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt;(&amp;self, range: R) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="struct.Span.html" title="struct proc_macro2::Span">Span</a>&gt;</h4></section></summary><div class="docblock"><p>Returns a <code>Span</code> that is a subset of <code>self.span()</code> containing only
the source bytes in range <code>range</code>. Returns <code>None</code> if the would-be
trimmed span is outside the bounds of <code>self</code>.</p>
<p>Warning: the underlying <a href="https://doc.rust-lang.org/proc_macro/struct.Literal.html#method.subspan"><code>proc_macro::Literal::subspan</code></a> method is
nightly-only. When called from within a procedural macro not using a
nightly compiler, this method will always return <code>None</code>.</p>
</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-Literal" class="impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1063">source</a><a href="#impl-Clone-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1063">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&amp;self) -&gt; <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.76.0/src/core/clone.rs.html#169">source</a></span><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&amp;mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-Literal" class="impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1285-1289">source</a><a href="#impl-Debug-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt-1" class="method trait-impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1286-1288">source</a><a href="#method.fmt-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Display-for-Literal" class="impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1291-1295">source</a><a href="#impl-Display-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1292-1294">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3CLiteral%3E-for-TokenTree" class="impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#621-625">source</a><a href="#impl-From%3CLiteral%3E-for-TokenTree" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a>&gt; for <a class="enum" href="enum.TokenTree.html" title="enum proc_macro2::TokenTree">TokenTree</a></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#622-624">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(g: <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a>) -&gt; Self</h4></section></summary><div class='docblock'>Converts to this type from the input type.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-FromStr-for-Literal" class="impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1274-1283">source</a><a href="#impl-FromStr-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/str/traits/trait.FromStr.html" title="trait core::str::traits::FromStr">FromStr</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Err" class="associatedtype trait-impl"><a href="#associatedtype.Err" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/str/traits/trait.FromStr.html#associatedtype.Err" class="associatedtype">Err</a> = <a class="struct" href="struct.LexError.html" title="struct proc_macro2::LexError">LexError</a></h4></section></summary><div class='docblock'>The associated error which can be returned from parsing.</div></details><details class="toggle method-toggle" open><summary><section id="method.from_str" class="method trait-impl"><a class="src rightside" href="../src/proc_macro2/lib.rs.html#1277-1282">source</a><a href="#method.from_str" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/str/traits/trait.FromStr.html#tymethod.from_str" class="fn">from_str</a>(repr: &amp;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.str.html">str</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;Self, <a class="struct" href="struct.LexError.html" title="struct proc_macro2::LexError">LexError</a>&gt;</h4></section></summary><div class='docblock'>Parses a string <code>s</code> to return a value of this type. <a href="https://doc.rust-lang.org/1.76.0/core/str/traits/trait.FromStr.html#tymethod.from_str">Read more</a></div></details></div></details></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-Literal" class="impl"><a href="#impl-RefUnwindSafe-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section><section id="impl-Send-for-Literal" class="impl"><a href="#impl-Send-for-Literal" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section><section id="impl-Sync-for-Literal" class="impl"><a href="#impl-Sync-for-Literal" class="anchor">§</a><h3 class="code-header">impl !<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section><section id="impl-Unpin-for-Literal" class="impl"><a href="#impl-Unpin-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section><section id="impl-UnwindSafe-for-Literal" class="impl"><a href="#impl-UnwindSafe-for-Literal" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Literal.html" title="struct proc_macro2::Literal">Literal</a></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#763">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/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="toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#766">source</a><a href="#method.from-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#756">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html#tymethod.into" class="fn">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/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/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="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">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/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&amp;self, target: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToString-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/string.rs.html#2600">source</a><a href="#impl-ToString-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.to_string" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/string.rs.html#2606">source</a><a href="#method.to_string" class="anchor">§</a><h4 class="code-header">default fn <a href="https://doc.rust-lang.org/1.76.0/alloc/string/trait.ToString.html#tymethod.to_string" class="fn">to_string</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></h4></section></summary><div class='docblock'>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/1.76.0/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#803-805">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.76.0/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="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#810">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/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/1.76.0/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="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#788-790">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/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="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#795">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/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/1.76.0/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/1.76.0/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></body></html>
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