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<table><tr class="module-item"><td><a class="trait" href="trait.Speculative.html" title="syn::parse::discouraged::Speculative trait">Speculative</a></td><td class="docblock-short"><p>Extensions to the <code>ParseStream</code> API to support speculative parsing.</p>
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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="Extensions to the `ParseStream` API to support speculative parsing."><meta name="keywords" content="rust, rustlang, rust-lang, Speculative"><title>syn::parse::discouraged::Speculative - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings"></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../../favicon.svg">
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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="Extensions to the `ParseStream` API to support speculative parsing."><meta name="keywords" content="rust, rustlang, rust-lang, Speculative"><title>Speculative in syn::parse::discouraged - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../ayu.css" disabled ><script id="default-settings"></script><script src="../../../storage.js"></script><script src="../../../crates.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../../syn/index.html'><div class='logo-container rust-logo'><img src='../../../rust-logo.png' alt='logo'></div></a><p class="location">Trait Speculative</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.advance_to">advance_to</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class="location"><a href="../../index.html">syn</a>::<wbr><a href="../index.html">parse</a>::<wbr><a href="index.html">discouraged</a></p><div id="sidebar-vars" data-name="Speculative" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../../index.html">syn</a>::<wbr><a href="../index.html">parse</a>::<wbr><a href="index.html">discouraged</a>::<wbr><a class="trait" href="">Speculative</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../../src/syn/discouraged.rs.html#6-158" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust trait">pub trait Speculative {
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<link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../../syn/index.html'><div class='logo-container rust-logo'><img src='../../../rust-logo.png' alt='logo'></div></a><p class="location">Trait Speculative</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.advance_to">advance_to</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class="location"><a href="../../index.html">syn</a>::<wbr><a href="../index.html">parse</a>::<wbr><a href="index.html">discouraged</a></p><div id="sidebar-vars" data-name="Speculative" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../../index.html">syn</a>::<wbr><a href="../index.html">parse</a>::<wbr><a href="index.html">discouraged</a>::<wbr><a class="trait" href="">Speculative</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../../src/syn/discouraged.rs.html#6-158" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust trait">pub trait Speculative {
|
||||
fn <a href="#tymethod.advance_to" class="fnname">advance_to</a>(&self, fork: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self);
|
||||
}</pre></div><div class="docblock"><p>Extensions to the <code>ParseStream</code> API to support speculative parsing.</p>
|
||||
</div><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><h3 id="tymethod.advance_to" class="method"><code>fn <a href="#tymethod.advance_to" class="fnname">advance_to</a>(&self, fork: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><a class="srclink" href="../../../src/syn/discouraged.rs.html#157" title="goto source code">[src]</a></h3><div class="docblock"><p>Advance this parse stream to the position of a forked parse stream.</p>
|
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<p>This is the opposite operation to <a href="../../../syn/parse/struct.ParseBuffer.html#method.fork"><code>ParseStream::fork</code></a>. You can fork a
|
||||
<p>This is the opposite operation to <a href="../struct.ParseBuffer.html#method.fork"><code>ParseStream::fork</code></a>. You can fork a
|
||||
parse stream, perform some speculative parsing, then join the original
|
||||
stream to the fork to “commit” the parsing from the fork to the main
|
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stream.</p>
|
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@@ -24,18 +24,18 @@ speculative parsing.</p>
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<p>There has been chatter about the possibility of making the colons in the
|
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turbofish syntax like <code>path::to::<T></code> no longer required by accepting
|
||||
<code>path::to<T></code> in expression position. Specifically, according to <a href="https://github.com/rust-lang/rfcs/pull/2544">RFC
|
||||
2544</a>, <a href="../../../syn/struct.PathSegment.html"><code>PathSegment</code></a> parsing should always try to consume a following
|
||||
2544</a>, <a href="../../struct.PathSegment.html"><code>PathSegment</code></a> parsing should always try to consume a following
|
||||
<code><</code> token as the start of generic arguments, and reset to the <code><</code> if
|
||||
that fails (e.g. the token is acting as a less-than operator).</p>
|
||||
<p>This is the exact kind of parsing behavior which requires the “fork,
|
||||
try, commit” behavior that <a href="../../../syn/parse/struct.ParseBuffer.html#method.fork"><code>ParseStream::fork</code></a> discourages. With
|
||||
try, commit” behavior that <a href="../struct.ParseBuffer.html#method.fork"><code>ParseStream::fork</code></a> discourages. With
|
||||
<code>advance_to</code>, we can avoid having to parse the speculatively parsed
|
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content a second time.</p>
|
||||
<p>This change in behavior can be implemented in syn by replacing just the
|
||||
<code>Parse</code> implementation for <code>PathSegment</code>:</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
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<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::<span class="ident">discouraged</span>::<span class="ident">Speculative</span>;
|
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<span class="kw">use</span> <span class="ident">syn::parse::discouraged::Speculative</span>;
|
||||
|
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<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">PathSegment</span> {
|
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<span class="kw">pub</span> <span class="ident">ident</span>: <span class="ident">Ident</span>,
|
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@@ -44,33 +44,33 @@ content a second time.</p>
|
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|
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<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">PathSegment</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">super</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="self">self</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="self">Self</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">crate</span>])
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">super</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">self</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">Self</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</span>])
|
||||
{
|
||||
<span class="kw">let</span> <span class="ident">ident</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Ident</span>::<span class="ident">parse_any</span>)<span class="question-mark">?</span>;
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">PathSegment</span>::<span class="ident">from</span>(<span class="ident">ident</span>));
|
||||
<span class="kw">let</span> <span class="ident">ident</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Ident::parse_any</span>)<span class="question-mark">?</span>;
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">PathSegment::from</span>(<span class="ident">ident</span>));
|
||||
}
|
||||
|
||||
<span class="kw">let</span> <span class="ident">ident</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[::]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek3</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="op"><</span>]) {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[::]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek3</span>(<span class="macro">Token!</span>[<span class="op"><</span>]) {
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">PathSegment</span> {
|
||||
<span class="ident">ident</span>,
|
||||
<span class="ident">arguments</span>: <span class="ident">PathArguments</span>::<span class="ident">AngleBracketed</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>),
|
||||
<span class="ident">arguments</span>: <span class="ident">PathArguments::AngleBracketed</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>),
|
||||
});
|
||||
}
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="op"><</span>]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="op"><</span><span class="op">=</span>]) {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op"><</span>]) <span class="op">&&</span> <span class="op">!</span><span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="op"><</span><span class="op">=</span>]) {
|
||||
<span class="kw">let</span> <span class="ident">fork</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>();
|
||||
<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Ok</span>(<span class="ident">arguments</span>) <span class="op">=</span> <span class="ident">fork</span>.<span class="ident">parse</span>() {
|
||||
<span class="ident">input</span>.<span class="ident">advance_to</span>(<span class="kw-2">&</span><span class="ident">fork</span>);
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">PathSegment</span> {
|
||||
<span class="ident">ident</span>,
|
||||
<span class="ident">arguments</span>: <span class="ident">PathArguments</span>::<span class="ident">AngleBracketed</span>(<span class="ident">arguments</span>),
|
||||
<span class="ident">arguments</span>: <span class="ident">PathArguments::AngleBracketed</span>(<span class="ident">arguments</span>),
|
||||
});
|
||||
}
|
||||
}
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">PathSegment</span>::<span class="ident">from</span>(<span class="ident">ident</span>))
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">PathSegment::from</span>(<span class="ident">ident</span>))
|
||||
}
|
||||
}
|
||||
</pre></div>
|
||||
@@ -110,5 +110,5 @@ on how far apart the two streams are positioned.</p>
|
||||
<p>The forked stream in the argument of <code>advance_to</code> must have been
|
||||
obtained by forking <code>self</code>. Attempting to advance to any other stream
|
||||
will cause a panic.</p>
|
||||
</div></div><span class="loading-content">Loading content...</span><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><h3 id="impl-Speculative" class="impl"><code class="in-band">impl<'a> <a class="trait" href="../../../syn/parse/discouraged/trait.Speculative.html" title="trait syn::parse::discouraged::Speculative">Speculative</a> for <a class="struct" href="../../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Speculative" class="anchor"></a><a class="srclink" href="../../../src/syn/discouraged.rs.html#160-194" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.advance_to" class="method hidden"><code>fn <a href="#method.advance_to" class="fnname">advance_to</a>(&self, fork: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><a class="srclink" href="../../../src/syn/discouraged.rs.html#161-193" title="goto source code">[src]</a></h4></div></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../../implementors/syn/parse/discouraged/trait.Speculative.js" async></script></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="syn" data-search-js="../../../search-index.js"></div>
|
||||
</div></div><span class="loading-content">Loading content...</span><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Speculative" class="impl"><code class="in-band">impl<'a> <a class="trait" href="trait.Speculative.html" title="trait syn::parse::discouraged::Speculative">Speculative</a> for <a class="struct" href="../struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Speculative" class="anchor"></a><a class="srclink" href="../../../src/syn/discouraged.rs.html#160-194" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.advance_to" class="method hidden trait-impl"><code>fn <a href="#tymethod.advance_to" class="fnname">advance_to</a>(&self, fork: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><a href="#method.advance_to" class="anchor"></a><a class="srclink" href="../../../src/syn/discouraged.rs.html#161-193" title="goto source code">[src]</a></h4></div></details></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../../implementors/syn/parse/discouraged/trait.Speculative.js" async></script></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="syn" data-search-index-js="../../../search-index.js" data-search-js="../../../search.js"></div>
|
||||
<script src="../../../main.js"></script></body></html>
|
||||
+36
-36
@@ -1,28 +1,28 @@
|
||||
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Parsing interface for parsing a token stream into a syntax tree node."><meta name="keywords" content="rust, rustlang, rust-lang, parse"><title>syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Module parse</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#modules">Modules</a></li><li><a href="#structs">Structs</a></li><li><a href="#traits">Traits</a></li><li><a href="#types">Type Definitions</a></li></ul></div><p class="location"><a href="../index.html">syn</a></p><div id="sidebar-vars" data-name="parse" data-ty="mod" data-relpath="../"></div><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Module <a href="../index.html">syn</a>::<wbr><a class="mod" href="">parse</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#1-1287" title="goto source code">[src]</a></span></h1><div class="docblock"><p>Parsing interface for parsing a token stream into a syntax tree node.</p>
|
||||
<p>Parsing in Syn is built on parser functions that take in a <a href="../../syn/parse/type.ParseStream.html" title="ParseStream"><code>ParseStream</code></a>
|
||||
and produce a <a href="../../syn/parse/type.Result.html"><code>Result<T></code></a> where <code>T</code> is some syntax tree node. Underlying
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Module parse</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#modules">Modules</a></li><li><a href="#structs">Structs</a></li><li><a href="#traits">Traits</a></li><li><a href="#types">Type Definitions</a></li></ul></div><p class="location"><a href="../index.html">syn</a></p><div id="sidebar-vars" data-name="parse" data-ty="mod" data-relpath="../"></div><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Module <a href="../index.html">syn</a>::<wbr><a class="mod" href="">parse</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#1-1287" title="goto source code">[src]</a></span></h1><div class="docblock"><p>Parsing interface for parsing a token stream into a syntax tree node.</p>
|
||||
<p>Parsing in Syn is built on parser functions that take in a <a href="type.ParseStream.html" title="ParseStream"><code>ParseStream</code></a>
|
||||
and produce a <a href="type.Result.html"><code>Result<T></code></a> where <code>T</code> is some syntax tree node. Underlying
|
||||
these parser functions is a lower level mechanism built around the
|
||||
<a href="../../syn/buffer/struct.Cursor.html"><code>Cursor</code></a> type. <code>Cursor</code> is a cheaply copyable cursor over a range of
|
||||
<a href="../buffer/struct.Cursor.html"><code>Cursor</code></a> type. <code>Cursor</code> is a cheaply copyable cursor over a range of
|
||||
tokens in a token stream.</p>
|
||||
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
|
||||
<p>Here is a snippet of parsing code to get a feel for the style of the
|
||||
library. We define data structures for a subset of Rust syntax including
|
||||
enums (not shown) and structs, then provide implementations of the <a href="../../syn/parse/trait.Parse.html" title="Parse"><code>Parse</code></a>
|
||||
enums (not shown) and structs, then provide implementations of the <a href="trait.Parse.html" title="Parse"><code>Parse</code></a>
|
||||
trait to parse these syntax tree data structures from a token stream.</p>
|
||||
<p>Once <code>Parse</code> impls have been defined, they can be called conveniently from a
|
||||
procedural macro through <a href="../../syn/macro.parse_macro_input.html"><code>parse_macro_input!</code></a> as shown at the bottom of
|
||||
procedural macro through <a href="../macro.parse_macro_input.html"><code>parse_macro_input!</code></a> as shown at the bottom of
|
||||
the snippet. If the caller provides syntactically invalid input to the
|
||||
procedural macro, they will receive a helpful compiler error message
|
||||
pointing out the exact token that triggered the failure to parse.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro</span>::<span class="ident">TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro::TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">braced</span>, <span class="ident">parse_macro_input</span>, <span class="ident">token</span>, <span class="ident">Field</span>, <span class="ident">Ident</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">punctuated</span>::<span class="ident">Punctuated</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::punctuated::Punctuated</span>;
|
||||
|
||||
<span class="kw">enum</span> <span class="ident">Item</span> {
|
||||
<span class="ident">Struct</span>(<span class="ident">ItemStruct</span>),
|
||||
@@ -30,19 +30,19 @@ pointing out the exact token that triggered the failure to parse.</p>
|
||||
}
|
||||
|
||||
<span class="kw">struct</span> <span class="ident">ItemStruct</span> {
|
||||
<span class="ident">struct_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">struct</span>],
|
||||
<span class="ident">struct_token</span>: <span class="macro">Token!</span>[<span class="kw">struct</span>],
|
||||
<span class="ident">ident</span>: <span class="ident">Ident</span>,
|
||||
<span class="ident">brace_token</span>: <span class="ident">token</span>::<span class="ident">Brace</span>,
|
||||
<span class="ident">fields</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Field</span>, <span class="macro">Token</span><span class="macro">!</span>[,]<span class="op">></span>,
|
||||
<span class="ident">brace_token</span>: <span class="ident">token::Brace</span>,
|
||||
<span class="ident">fields</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Field</span>, <span class="macro">Token!</span>[,]<span class="op">></span>,
|
||||
}
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Item</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">let</span> <span class="ident">lookahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">lookahead1</span>();
|
||||
<span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">struct</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Item</span>::<span class="ident">Struct</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">enum</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Item</span>::<span class="ident">Enum</span>)
|
||||
<span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">struct</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Item::Struct</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">enum</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">Item::Enum</span>)
|
||||
} <span class="kw">else</span> {
|
||||
<span class="prelude-val">Err</span>(<span class="ident">lookahead</span>.<span class="ident">error</span>())
|
||||
}
|
||||
@@ -55,33 +55,33 @@ pointing out the exact token that triggered the failure to parse.</p>
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">ItemStruct</span> {
|
||||
<span class="ident">struct_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">ident</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">brace_token</span>: <span class="macro">braced</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">fields</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Field</span>::<span class="ident">parse_named</span>)<span class="question-mark">?</span>,
|
||||
<span class="ident">brace_token</span>: <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">fields</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Field::parse_named</span>)<span class="question-mark">?</span>,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
<span class="attribute">#[<span class="ident">proc_macro</span>]</span>
|
||||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">my_macro</span>(<span class="ident">tokens</span>: <span class="ident">TokenStream</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TokenStream</span> {
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input</span><span class="macro">!</span>(<span class="ident">tokens</span> <span class="kw">as</span> <span class="ident">Item</span>);
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input!</span>(<span class="ident">tokens</span> <span class="kw">as</span> <span class="ident">Item</span>);
|
||||
|
||||
<span class="comment">/* ... */</span>
|
||||
}</pre></div>
|
||||
<h1 id="the-synparse-functions" class="section-header"><a href="#the-synparse-functions">The <code>syn::parse*</code> functions</a></h1>
|
||||
<p>The <a href="../../syn/fn.parse.html"><code>syn::parse</code></a>, <a href="../../syn/fn.parse2.html"><code>syn::parse2</code></a>, and <a href="../../syn/fn.parse_str.html"><code>syn::parse_str</code></a> functions serve
|
||||
<p>The <a href="../fn.parse.html"><code>syn::parse</code></a>, <a href="../fn.parse2.html"><code>syn::parse2</code></a>, and <a href="../fn.parse_str.html"><code>syn::parse_str</code></a> functions serve
|
||||
as an entry point for parsing syntax tree nodes that can be parsed in an
|
||||
obvious default way. These functions can return any syntax tree node that
|
||||
implements the <a href="../../syn/parse/trait.Parse.html" title="Parse"><code>Parse</code></a> trait, which includes most types in Syn.</p>
|
||||
implements the <a href="trait.Parse.html" title="Parse"><code>Parse</code></a> trait, which includes most types in Syn.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">Type</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::Type</span>;
|
||||
|
||||
<span class="kw">let</span> <span class="ident">t</span>: <span class="ident">Type</span> <span class="op">=</span> <span class="ident">syn</span>::<span class="ident">parse_str</span>(<span class="string">"std::collections::HashMap<String, Value>"</span>)<span class="question-mark">?</span>;</pre></div>
|
||||
<p>The <a href="../../syn/macro.parse_quote.html"><code>parse_quote!</code></a> macro also uses this approach.</p>
|
||||
<span class="kw">let</span> <span class="ident">t</span>: <span class="ident">Type</span> <span class="op">=</span> <span class="ident">syn::parse_str</span>(<span class="string">"std::collections::HashMap<String, Value>"</span>)<span class="question-mark">?</span>;</pre></div>
|
||||
<p>The <a href="../macro.parse_quote.html"><code>parse_quote!</code></a> macro also uses this approach.</p>
|
||||
<h1 id="the-parser-trait" class="section-header"><a href="#the-parser-trait">The <code>Parser</code> trait</a></h1>
|
||||
<p>Some types can be parsed in several ways depending on context. For example
|
||||
an <a href="../../syn/struct.Attribute.html"><code>Attribute</code></a> can be either “outer” like <code>#[...]</code> or “inner” like
|
||||
<code>#![...]</code> and parsing the wrong one would be a bug. Similarly <a href="../../syn/punctuated/index.html"><code>Punctuated</code></a>
|
||||
an <a href="../struct.Attribute.html"><code>Attribute</code></a> can be either “outer” like <code>#[...]</code> or “inner” like
|
||||
<code>#![...]</code> and parsing the wrong one would be a bug. Similarly <a href="../punctuated/index.html"><code>Punctuated</code></a>
|
||||
may or may not allow trailing punctuation, and parsing it the wrong way
|
||||
would either reject valid input or accept invalid input.</p>
|
||||
<p>The <code>Parse</code> trait is not implemented in these cases because there is no good
|
||||
@@ -90,33 +90,33 @@ behavior to consider the default.</p>
|
||||
<div class='information'><div class='tooltip compile_fail'>ⓘ</div></div><div class="example-wrap"><pre class="rust rust-example-rendered compile_fail">
|
||||
<span class="comment">// Can't parse `Punctuated` without knowing whether trailing punctuation</span>
|
||||
<span class="comment">// should be allowed in this context.</span>
|
||||
<span class="kw">let</span> <span class="ident">path</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">PathSegment</span>, <span class="macro">Token</span><span class="macro">!</span>[::]<span class="op">></span> <span class="op">=</span> <span class="ident">syn</span>::<span class="ident">parse</span>(<span class="ident">tokens</span>)<span class="question-mark">?</span>;</pre></div>
|
||||
<span class="kw">let</span> <span class="ident">path</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">PathSegment</span>, <span class="macro">Token!</span>[::]<span class="op">></span> <span class="op">=</span> <span class="ident">syn::parse</span>(<span class="ident">tokens</span>)<span class="question-mark">?</span>;</pre></div>
|
||||
<p>In these cases the types provide a choice of parser functions rather than a
|
||||
single <code>Parse</code> implementation, and those parser functions can be invoked
|
||||
through the <a href="../../syn/parse/trait.Parser.html" title="Parser"><code>Parser</code></a> trait.</p>
|
||||
through the <a href="trait.Parser.html" title="Parser"><code>Parser</code></a> trait.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro</span>::<span class="ident">TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::<span class="ident">Parser</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">punctuated</span>::<span class="ident">Punctuated</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro::TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse::Parser</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::punctuated::Punctuated</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">Attribute</span>, <span class="ident">Expr</span>, <span class="ident">PathSegment</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
|
||||
<span class="kw">fn</span> <span class="ident">call_some_parser_methods</span>(<span class="ident">input</span>: <span class="ident">TokenStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> {
|
||||
<span class="comment">// Parse a nonempty sequence of path segments separated by `::` punctuation</span>
|
||||
<span class="comment">// with no trailing punctuation.</span>
|
||||
<span class="kw">let</span> <span class="ident">tokens</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">clone</span>();
|
||||
<span class="kw">let</span> <span class="ident">parser</span> <span class="op">=</span> <span class="ident">Punctuated</span>::<span class="op"><</span><span class="ident">PathSegment</span>, <span class="macro">Token</span><span class="macro">!</span>[::]<span class="op">></span>::<span class="ident">parse_separated_nonempty</span>;
|
||||
<span class="kw">let</span> <span class="ident">parser</span> <span class="op">=</span> <span class="ident">Punctuated</span>::<span class="op"><</span><span class="ident">PathSegment</span>, <span class="macro">Token!</span>[::]<span class="op">></span><span class="ident">::parse_separated_nonempty</span>;
|
||||
<span class="kw">let</span> <span class="ident">_path</span> <span class="op">=</span> <span class="ident">parser</span>.<span class="ident">parse</span>(<span class="ident">tokens</span>)<span class="question-mark">?</span>;
|
||||
|
||||
<span class="comment">// Parse a possibly empty sequence of expressions terminated by commas with</span>
|
||||
<span class="comment">// an optional trailing punctuation.</span>
|
||||
<span class="kw">let</span> <span class="ident">tokens</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">clone</span>();
|
||||
<span class="kw">let</span> <span class="ident">parser</span> <span class="op">=</span> <span class="ident">Punctuated</span>::<span class="op"><</span><span class="ident">Expr</span>, <span class="macro">Token</span><span class="macro">!</span>[,]<span class="op">></span>::<span class="ident">parse_terminated</span>;
|
||||
<span class="kw">let</span> <span class="ident">parser</span> <span class="op">=</span> <span class="ident">Punctuated</span>::<span class="op"><</span><span class="ident">Expr</span>, <span class="macro">Token!</span>[,]<span class="op">></span><span class="ident">::parse_terminated</span>;
|
||||
<span class="kw">let</span> <span class="ident">_args</span> <span class="op">=</span> <span class="ident">parser</span>.<span class="ident">parse</span>(<span class="ident">tokens</span>)<span class="question-mark">?</span>;
|
||||
|
||||
<span class="comment">// Parse zero or more outer attributes but not inner attributes.</span>
|
||||
<span class="kw">let</span> <span class="ident">tokens</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">clone</span>();
|
||||
<span class="kw">let</span> <span class="ident">parser</span> <span class="op">=</span> <span class="ident">Attribute</span>::<span class="ident">parse_outer</span>;
|
||||
<span class="kw">let</span> <span class="ident">parser</span> <span class="op">=</span> <span class="ident">Attribute::parse_outer</span>;
|
||||
<span class="kw">let</span> <span class="ident">_attrs</span> <span class="op">=</span> <span class="ident">parser</span>.<span class="ident">parse</span>(<span class="ident">tokens</span>)<span class="question-mark">?</span>;
|
||||
|
||||
<span class="prelude-val">Ok</span>(())
|
||||
@@ -139,5 +139,5 @@ way from a token stream.</p>
|
||||
</td></tr></table><h2 id="types" class="section-header"><a href="#types">Type Definitions</a></h2>
|
||||
<table><tr class="module-item"><td><a class="type" href="type.ParseStream.html" title="syn::parse::ParseStream type">ParseStream</a></td><td class="docblock-short"><p>Input to a Syn parser function.</p>
|
||||
</td></tr><tr class="module-item"><td><a class="type" href="type.Result.html" title="syn::parse::Result type">Result</a></td><td class="docblock-short"><p>The result of a Syn parser.</p>
|
||||
</td></tr></table></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
|
||||
</td></tr></table></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
|
||||
<script src="../../main.js"></script></body></html>
|
||||
@@ -1,41 +1,41 @@
|
||||
<!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="Error returned when a Syn parser cannot parse the input tokens."><meta name="keywords" content="rust, rustlang, rust-lang, Error"><title>syn::parse::Error - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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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="Error returned when a Syn parser cannot parse the input tokens."><meta name="keywords" content="rust, rustlang, rust-lang, Error"><title>Error in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Error</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.combine">combine</a><a href="#method.into_compile_error">into_compile_error</a><a href="#method.new">new</a><a href="#method.new_spanned">new_spanned</a><a href="#method.span">span</a><a href="#method.to_compile_error">to_compile_error</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Display">Display</a><a href="#impl-Error">Error</a><a href="#impl-Extend%3CError%3E">Extend<Error></a><a href="#impl-From%3CLexError%3E">From<LexError></a><a href="#impl-IntoIterator">IntoIterator</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-ToString">ToString</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Error" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">Error</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/error.rs.html#82-84" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct Error { /* fields omitted */ }</pre></div><div class="docblock"><p>Error returned when a Syn parser cannot parse the input tokens.</p>
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Error</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.combine">combine</a><a href="#method.into_compile_error">into_compile_error</a><a href="#method.new">new</a><a href="#method.new_spanned">new_spanned</a><a href="#method.span">span</a><a href="#method.to_compile_error">to_compile_error</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Display">Display</a><a href="#impl-Error">Error</a><a href="#impl-Extend%3CError%3E">Extend<Error></a><a href="#impl-From%3CLexError%3E">From<LexError></a><a href="#impl-IntoIterator">IntoIterator</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-ToString">ToString</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Error" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">Error</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/error.rs.html#82-84" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust struct">pub struct Error { /* fields omitted */ }</pre></div><div class="docblock"><p>Error returned when a Syn parser cannot parse the input tokens.</p>
|
||||
<h1 id="error-reporting-in-proc-macros" class="section-header"><a href="#error-reporting-in-proc-macros">Error reporting in proc macros</a></h1>
|
||||
<p>The correct way to report errors back to the compiler from a procedural
|
||||
macro is by emitting an appropriately spanned invocation of
|
||||
<a href="https://doc.rust-lang.org/nightly/core/macro.compile_error.html"><code>compile_error!</code></a> in the generated code. This produces a better diagnostic
|
||||
message than simply panicking the macro.</p>
|
||||
<p>When parsing macro input, the <a href="../../syn/macro.parse_macro_input.html" title="parse_macro_input!"><code>parse_macro_input!</code></a> macro handles the
|
||||
<p>When parsing macro input, the <a href="../macro.parse_macro_input.html" title="parse_macro_input!"><code>parse_macro_input!</code></a> macro handles the
|
||||
conversion to <code>compile_error!</code> automatically.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro</span>::<span class="ident">TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro::TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">parse_macro_input</span>, <span class="ident">AttributeArgs</span>, <span class="ident">ItemFn</span>};
|
||||
|
||||
<span class="attribute">#[<span class="ident">proc_macro_attribute</span>]</span>
|
||||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">my_attr</span>(<span class="ident">args</span>: <span class="ident">TokenStream</span>, <span class="ident">input</span>: <span class="ident">TokenStream</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TokenStream</span> {
|
||||
<span class="kw">let</span> <span class="ident">args</span> <span class="op">=</span> <span class="macro">parse_macro_input</span><span class="macro">!</span>(<span class="ident">args</span> <span class="kw">as</span> <span class="ident">AttributeArgs</span>);
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input</span><span class="macro">!</span>(<span class="ident">input</span> <span class="kw">as</span> <span class="ident">ItemFn</span>);
|
||||
<span class="kw">let</span> <span class="ident">args</span> <span class="op">=</span> <span class="macro">parse_macro_input!</span>(<span class="ident">args</span> <span class="kw">as</span> <span class="ident">AttributeArgs</span>);
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input!</span>(<span class="ident">input</span> <span class="kw">as</span> <span class="ident">ItemFn</span>);
|
||||
|
||||
<span class="comment">/* ... */</span>
|
||||
}</pre></div>
|
||||
<p>For errors that arise later than the initial parsing stage, the
|
||||
<a href="../../syn/parse/struct.Error.html#method.to_compile_error"><code>.to_compile_error()</code></a> method can be used to perform an explicit conversion
|
||||
<a href="struct.Error.html#method.to_compile_error"><code>.to_compile_error()</code></a> method can be used to perform an explicit conversion
|
||||
to <code>compile_error!</code>.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="attribute">#[<span class="ident">proc_macro_derive</span>(<span class="ident">MyDerive</span>)]</span>
|
||||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">my_derive</span>(<span class="ident">input</span>: <span class="ident">TokenStream</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TokenStream</span> {
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input</span><span class="macro">!</span>(<span class="ident">input</span> <span class="kw">as</span> <span class="ident">DeriveInput</span>);
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input!</span>(<span class="ident">input</span> <span class="kw">as</span> <span class="ident">DeriveInput</span>);
|
||||
|
||||
<span class="comment">// fn(DeriveInput) -> syn::Result<proc_macro2::TokenStream></span>
|
||||
<span class="ident">expand</span>::<span class="ident">my_derive</span>(<span class="ident">input</span>)
|
||||
<span class="ident">expand::my_derive</span>(<span class="ident">input</span>)
|
||||
.<span class="ident">unwrap_or_else</span>(<span class="op">|</span><span class="ident">err</span><span class="op">|</span> <span class="ident">err</span>.<span class="ident">to_compile_error</span>())
|
||||
.<span class="ident">into</span>()
|
||||
}</pre></div>
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#102-241" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.new" class="method"><code>pub fn <a href="#method.new" class="fnname">new</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(span: <a class="struct" href="../../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a>, message: T) -> Self</code><a class="srclink" href="../../src/syn/error.rs.html#133-141" title="goto source code">[src]</a></h4><div class="docblock"><p>Usually the <a href="../../syn/parse/struct.ParseBuffer.html#method.error"><code>ParseStream::error</code></a> method will be used instead, which
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl" class="impl"><code class="in-band">impl <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#102-241" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.new" class="method"><code>pub fn <a href="#method.new" class="fnname">new</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(span: <a class="struct" href="../../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a>, message: T) -> Self</code><a href="#method.new" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#133-141" title="goto source code">[src]</a></h4><div class="docblock"><p>Usually the <a href="struct.ParseBuffer.html#method.error"><code>ParseStream::error</code></a> method will be used instead, which
|
||||
automatically uses the correct span from the current position of the
|
||||
parse stream.</p>
|
||||
<p>Use <code>Error::new</code> when the error needs to be triggered on some span other
|
||||
@@ -43,7 +43,7 @@ than where the parse stream is currently positioned.</p>
|
||||
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">Error</span>, <span class="ident">Ident</span>, <span class="ident">LitStr</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::<span class="ident">ParseStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse::ParseStream</span>;
|
||||
|
||||
<span class="comment">// Parses input that looks like `name = "string"` where the key must be</span>
|
||||
<span class="comment">// the identifier `name` and the value may be any string literal.</span>
|
||||
@@ -53,13 +53,13 @@ than where the parse stream is currently positioned.</p>
|
||||
<span class="kw">if</span> <span class="ident">name_token</span> <span class="op">!</span><span class="op">=</span> <span class="string">"name"</span> {
|
||||
<span class="comment">// Trigger an error not on the current position of the stream,</span>
|
||||
<span class="comment">// but on the position of the unexpected identifier.</span>
|
||||
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">Error</span>::<span class="ident">new</span>(<span class="ident">name_token</span>.<span class="ident">span</span>(), <span class="string">"expected `name`"</span>));
|
||||
<span class="kw">return</span> <span class="prelude-val">Err</span>(<span class="ident">Error::new</span>(<span class="ident">name_token</span>.<span class="ident">span</span>(), <span class="string">"expected `name`"</span>));
|
||||
}
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token</span><span class="macro">!</span>[<span class="op">=</span>]<span class="op">></span>()<span class="question-mark">?</span>;
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>::<span class="op"><</span><span class="macro">Token!</span>[<span class="op">=</span>]<span class="op">></span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">s</span>: <span class="ident">LitStr</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">s</span>)
|
||||
}</pre></div>
|
||||
</div><h4 id="method.new_spanned" class="method"><code>pub fn <a href="#method.new_spanned" class="fnname">new_spanned</a><T: <a class="trait" href="../../quote/to_tokens/trait.ToTokens.html" title="trait quote::to_tokens::ToTokens">ToTokens</a>, U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(tokens: T, message: U) -> Self</code><a class="srclink" href="../../src/syn/error.rs.html#157-168" title="goto source code">[src]</a></h4><div class="docblock"><p>Creates an error with the specified message spanning the given syntax
|
||||
</div><h4 id="method.new_spanned" class="method"><code>pub fn <a href="#method.new_spanned" class="fnname">new_spanned</a><T: <a class="trait" href="../../quote/to_tokens/trait.ToTokens.html" title="trait quote::to_tokens::ToTokens">ToTokens</a>, U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(tokens: T, message: U) -> Self</code><a href="#method.new_spanned" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#157-168" title="goto source code">[src]</a></h4><div class="docblock"><p>Creates an error with the specified message spanning the given syntax
|
||||
tree node.</p>
|
||||
<p>Unlike the <code>Error::new</code> constructor, this constructor takes an argument
|
||||
<code>tokens</code> which is a syntax tree node. This allows the resulting <code>Error</code>
|
||||
@@ -70,68 +70,68 @@ constructor, implementation limitations today mean that
|
||||
stable Rust.</p>
|
||||
<p>When in doubt it’s recommended to stick to <code>Error::new</code> (or
|
||||
<code>ParseStream::error</code>)!</p>
|
||||
</div><h4 id="method.span" class="method"><code>pub fn <a href="#method.span" class="fnname">span</a>(&self) -> <a class="struct" href="../../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a></code><a class="srclink" href="../../src/syn/error.rs.html#175-185" title="goto source code">[src]</a></h4><div class="docblock"><p>The source location of the error.</p>
|
||||
</div><h4 id="method.span" class="method"><code>pub fn <a href="#method.span" class="fnname">span</a>(&self) -> <a class="struct" href="../../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a></code><a href="#method.span" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#175-185" title="goto source code">[src]</a></h4><div class="docblock"><p>The source location of the error.</p>
|
||||
<p>Spans are not thread-safe so this function returns <code>Span::call_site()</code>
|
||||
if called from a different thread than the one on which the <code>Error</code> was
|
||||
originally created.</p>
|
||||
</div><h4 id="method.to_compile_error" class="method"><code>pub fn <a href="#method.to_compile_error" class="fnname">to_compile_error</a>(&self) -> <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></code><a class="srclink" href="../../src/syn/error.rs.html#193-198" title="goto source code">[src]</a></h4><div class="docblock"><p>Render the error as an invocation of <a href="https://doc.rust-lang.org/nightly/core/macro.compile_error.html"><code>compile_error!</code></a>.</p>
|
||||
<p>The <a href="../../syn/macro.parse_macro_input.html" title="parse_macro_input!"><code>parse_macro_input!</code></a> macro provides a convenient way to invoke
|
||||
</div><h4 id="method.to_compile_error" class="method"><code>pub fn <a href="#method.to_compile_error" class="fnname">to_compile_error</a>(&self) -> <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></code><a href="#method.to_compile_error" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#193-198" title="goto source code">[src]</a></h4><div class="docblock"><p>Render the error as an invocation of <a href="https://doc.rust-lang.org/nightly/core/macro.compile_error.html"><code>compile_error!</code></a>.</p>
|
||||
<p>The <a href="../macro.parse_macro_input.html" title="parse_macro_input!"><code>parse_macro_input!</code></a> macro provides a convenient way to invoke
|
||||
this method correctly in a procedural macro.</p>
|
||||
</div><h4 id="method.into_compile_error" class="method"><code>pub fn <a href="#method.into_compile_error" class="fnname">into_compile_error</a>(self) -> <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></code><a class="srclink" href="../../src/syn/error.rs.html#232-234" title="goto source code">[src]</a></h4><div class="docblock"><p>Render the error as an invocation of <a href="https://doc.rust-lang.org/nightly/core/macro.compile_error.html"><code>compile_error!</code></a>.</p>
|
||||
</div><h4 id="method.into_compile_error" class="method"><code>pub fn <a href="#method.into_compile_error" class="fnname">into_compile_error</a>(self) -> <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a></code><a href="#method.into_compile_error" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#232-234" title="goto source code">[src]</a></h4><div class="docblock"><p>Render the error as an invocation of <a href="https://doc.rust-lang.org/nightly/core/macro.compile_error.html"><code>compile_error!</code></a>.</p>
|
||||
<h1 id="example-1" class="section-header"><a href="#example-1">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro</span>::<span class="ident">TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro::TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">parse_macro_input</span>, <span class="ident">DeriveInput</span>, <span class="ident">Error</span>};
|
||||
|
||||
<span class="attribute">#[<span class="ident">proc_macro_derive</span>(<span class="ident">MyTrait</span>)]</span>
|
||||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">derive_my_trait</span>(<span class="ident">input</span>: <span class="ident">TokenStream</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TokenStream</span> {
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input</span><span class="macro">!</span>(<span class="ident">input</span> <span class="kw">as</span> <span class="ident">DeriveInput</span>);
|
||||
<span class="ident">my_trait</span>::<span class="ident">expand</span>(<span class="ident">input</span>)
|
||||
.<span class="ident">unwrap_or_else</span>(<span class="ident">Error</span>::<span class="ident">into_compile_error</span>)
|
||||
<span class="kw">let</span> <span class="ident">input</span> <span class="op">=</span> <span class="macro">parse_macro_input!</span>(<span class="ident">input</span> <span class="kw">as</span> <span class="ident">DeriveInput</span>);
|
||||
<span class="ident">my_trait::expand</span>(<span class="ident">input</span>)
|
||||
.<span class="ident">unwrap_or_else</span>(<span class="ident">Error::into_compile_error</span>)
|
||||
.<span class="ident">into</span>()
|
||||
}
|
||||
|
||||
<span class="kw">mod</span> <span class="ident">my_trait</span> {
|
||||
<span class="kw">use</span> <span class="ident">proc_macro2</span>::<span class="ident">TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro2::TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">DeriveInput</span>, <span class="prelude-ty">Result</span>};
|
||||
|
||||
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">expand</span>(<span class="ident">input</span>: <span class="ident">DeriveInput</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">TokenStream</span><span class="op">></span> {
|
||||
<span class="comment">/* ... */</span>
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.combine" class="method"><code>pub fn <a href="#method.combine" class="fnname">combine</a>(&mut self, another: <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a>)</code><a class="srclink" href="../../src/syn/error.rs.html#238-240" title="goto source code">[src]</a></h4><div class="docblock"><p>Add another error message to self such that when <code>to_compile_error()</code> is
|
||||
</div><h4 id="method.combine" class="method"><code>pub fn <a href="#method.combine" class="fnname">combine</a>(&mut self, another: <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a>)</code><a href="#method.combine" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#238-240" title="goto source code">[src]</a></h4><div class="docblock"><p>Add another error message to self such that when <code>to_compile_error()</code> is
|
||||
called, both errors will be emitted together.</p>
|
||||
</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Clone" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Clone" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#324-330" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.clone" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> Self</code><a class="srclink" href="../../src/syn/error.rs.html#325-329" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||||
</div><h4 id="method.clone_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><span 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#130" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||||
</div></div><h3 id="impl-Debug" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#296-310" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, formatter: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class="srclink" href="../../src/syn/error.rs.html#297-309" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div><h3 id="impl-Display" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Display" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#318-322" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt-1" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt" class="fnname">fmt</a>(&self, formatter: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class="srclink" href="../../src/syn/error.rs.html#319-321" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div><h3 id="impl-Error" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html" title="trait std::error::Error">Error</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Error" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#348" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.source" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.source" class="fnname">source</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&(dyn <a class="trait" href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html" title="trait std::error::Error">Error</a> + 'static)></code><span class="since" title="Stable since Rust version 1.30.0">1.30.0</span><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#99" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>The lower-level source of this error, if any. <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.source">Read more</a></p>
|
||||
</div><h4 id="method.backtrace" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.backtrace" class="fnname">backtrace</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="https://doc.rust-lang.org/nightly/std/backtrace/struct.Backtrace.html" title="struct std::backtrace::Backtrace">Backtrace</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#127" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>backtrace</code>)</div></div><div class='docblock hidden'><p>Returns a stack backtrace, if available, of where this error occurred. <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.backtrace">Read more</a></p>
|
||||
</div><h4 id="method.description" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.description" class="fnname">description</a>(&self) -> &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></code><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/std/error.rs.html#139" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab deprecated"><span class="emoji">👎</span> Deprecated since 1.42.0: <p>use the Display impl or to_string()</p>
|
||||
</div></div><div class='docblock hidden'> <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.description">Read more</a></div><h4 id="method.cause" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.cause" class="fnname">cause</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&dyn <a class="trait" href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html" title="trait std::error::Error">Error</a>></code><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/std/error.rs.html#149" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab deprecated"><span class="emoji">👎</span> Deprecated since 1.33.0: <p>replaced by Error::source, which can support downcasting</p>
|
||||
</div></div></div><h3 id="impl-Extend%3CError%3E" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a>> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Extend%3CError%3E" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#406-412" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.extend" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fnname">extend</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a>>>(&mut self, iter: T)</code><a class="srclink" href="../../src/syn/error.rs.html#407-411" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></p>
|
||||
</div><h4 id="method.extend_one" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fnname">extend_one</a>(&mut self, item: A)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#340" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Extends a collection with exactly one element.</p>
|
||||
</div><h4 id="method.extend_reserve" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fnname">extend_reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#348" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></p>
|
||||
</div></div><h3 id="impl-From%3CLexError%3E" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><<a class="struct" href="../../proc_macro2/struct.LexError.html" title="struct proc_macro2::LexError">LexError</a>> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-From%3CLexError%3E" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#350-354" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(err: <a class="struct" href="../../proc_macro2/struct.LexError.html" title="struct proc_macro2::LexError">LexError</a>) -> Self</code><a class="srclink" href="../../src/syn/error.rs.html#351-353" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-IntoIterator" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-IntoIterator" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#356-365" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Item" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="type">Item</a> = <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||||
</div><h4 id="associatedtype.IntoIter" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="type">IntoIter</a> = IntoIter</code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||||
</div><h4 id="method.into_iter" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fnname">into_iter</a>(self) -> Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></code><a class="srclink" href="../../src/syn/error.rs.html#360-364" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||||
</div></div><h3 id="impl-IntoIterator-1" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-IntoIterator-1" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#381-390" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Item-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="type">Item</a> = <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||||
</div><h4 id="associatedtype.IntoIter-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="type">IntoIter</a> = Iter<'a></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||||
</div><h4 id="method.into_iter-1" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fnname">into_iter</a>(self) -> Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></code><a class="srclink" href="../../src/syn/error.rs.html#385-389" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||||
</div></div></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">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="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Send" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">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="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Sync" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">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="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Unpin" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from-1" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-ToOwned" class="impl"><code class="in-band">impl<T> <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> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href="#impl-ToOwned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-93" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Owned" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="type">Owned</a> = T</code></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
|
||||
</div><h4 id="method.to_owned" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#86" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div><h4 id="method.clone_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#90" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><details><summary><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
|
||||
</div></div></details><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><h3 id="impl-Clone" class="impl"><code class="in-band">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.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Clone" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#324-330" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.clone" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> Self</code><a href="#method.clone" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#325-329" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||||
</div><h4 id="method.clone_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.clone_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/clone.rs.html#130" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Debug" class="impl"><code class="in-band">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.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#296-310" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.fmt" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, formatter: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a href="#method.fmt" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#297-309" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Display" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Display" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#318-322" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.fmt-1" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt" class="fnname">fmt</a>(&self, formatter: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a href="#method.fmt-1" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#319-321" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Error" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html" title="trait std::error::Error">Error</a> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Error" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#348" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.source" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.source" class="fnname">source</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&(dyn <a class="trait" href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html" title="trait std::error::Error">Error</a> + 'static)></code><span class="since" title="Stable since Rust version 1.30.0">1.30.0</span><a href="#method.source" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#106" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>The lower-level source of this error, if any. <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.source">Read more</a></p>
|
||||
</div><h4 id="method.backtrace" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.backtrace" class="fnname">backtrace</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="https://doc.rust-lang.org/nightly/std/backtrace/struct.Backtrace.html" title="struct std::backtrace::Backtrace">Backtrace</a>></code><a href="#method.backtrace" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#134" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>backtrace</code>)</div></div><div class='docblock hidden'><p>Returns a stack backtrace, if available, of where this error occurred. <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.backtrace">Read more</a></p>
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</div><h4 id="method.description" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.description" class="fnname">description</a>(&self) -> &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a></code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.description" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#146" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab deprecated"><span class="emoji">👎</span> Deprecated since 1.42.0: <p>use the Display impl or to_string()</p>
|
||||
</div></div><div class='docblock hidden'> <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.description">Read more</a></div><h4 id="method.cause" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html#method.cause" class="fnname">cause</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&dyn <a class="trait" href="https://doc.rust-lang.org/nightly/std/error/trait.Error.html" title="trait std::error::Error">Error</a>></code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.cause" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/std/error.rs.html#156" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab deprecated"><span class="emoji">👎</span> Deprecated since 1.33.0: <p>replaced by Error::source, which can support downcasting</p>
|
||||
</div></div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Extend%3CError%3E" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><<a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a>> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Extend%3CError%3E" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#406-412" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.extend" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fnname">extend</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a>>>(&mut self, iter: T)</code><a href="#method.extend" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#407-411" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></p>
|
||||
</div><h4 id="method.extend_one" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fnname">extend_one</a>(&mut self, item: A)</code><a href="#method.extend_one" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#341" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Extends a collection with exactly one element.</p>
|
||||
</div><h4 id="method.extend_reserve" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fnname">extend_reserve</a>(&mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>)</code><a href="#method.extend_reserve" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#349" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-From%3CLexError%3E" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><<a class="struct" href="../../proc_macro2/struct.LexError.html" title="struct proc_macro2::LexError">LexError</a>> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-From%3CLexError%3E" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#350-354" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.from" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(err: <a class="struct" href="../../proc_macro2/struct.LexError.html" title="struct proc_macro2::LexError">LexError</a>) -> Self</code><a href="#method.from" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#351-353" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-IntoIterator" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-IntoIterator" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#356-365" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Item" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="type">Item</a> = <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#associatedtype.Item" class="anchor"></a></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||||
</div><h4 id="associatedtype.IntoIter" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="type">IntoIter</a> = IntoIter</code><a href="#associatedtype.IntoIter" class="anchor"></a></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
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||||
</div><h4 id="method.into_iter" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fnname">into_iter</a>(self) -> Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></code><a href="#method.into_iter" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#360-364" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-IntoIterator-1" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-IntoIterator-1" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#381-390" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Item-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="type">Item</a> = <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#associatedtype.Item-1" class="anchor"></a></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||||
</div><h4 id="associatedtype.IntoIter-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="type">IntoIter</a> = Iter<'a></code><a href="#associatedtype.IntoIter-1" class="anchor"></a></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||||
</div><h4 id="method.into_iter-1" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fnname">into_iter</a>(self) -> Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></code><a href="#method.into_iter-1" class="anchor"></a><a class="srclink" href="../../src/syn/error.rs.html#385-389" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||||
</div></div></details></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><h3 id="impl-Send" class="impl"><code class="in-band">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.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Send" class="anchor"></a></h3><h3 id="impl-Sync" class="impl"><code class="in-band">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.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Sync" class="anchor"></a></h3><h3 id="impl-Unpin" class="impl"><code class="in-band">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.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-Unpin" class="anchor"></a></h3><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3></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" open><summary><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.type_id" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a href="#method.type_id" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a href="#method.borrow" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a href="#method.borrow_mut" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.from-1" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a href="#method.from-1" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a href="#method.into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-ToOwned" class="impl"><code class="in-band">impl<T> <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> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href="#impl-ToOwned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-93" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Owned" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="type">Owned</a> = T</code><a href="#associatedtype.Owned" class="anchor"></a></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
|
||||
</div><h4 id="method.to_owned" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</code><a href="#method.to_owned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#86" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div><h4 id="method.clone_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a href="#method.clone_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#90" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><details><summary><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
|
||||
</details></div></div><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-ToString" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-ToString" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2261-2274" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.to_string" class="method hidden"><code>pub default fn <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string" class="fnname">to_string</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2267" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
|
||||
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-ToString" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-ToString" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2268-2281" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.to_string" class="method hidden trait-impl"><code>pub default fn <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string" class="fnname">to_string</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></code><a href="#method.to_string" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2274" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code><a href="#associatedtype.Error" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code><a href="#associatedtype.Error-1" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details></div></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
|
||||
<script src="../../main.js"></script></body></html>
|
||||
@@ -1,16 +1,16 @@
|
||||
<!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="Support for checking the next token in a stream to decide how to parse."><meta name="keywords" content="rust, rustlang, rust-lang, Lookahead1"><title>syn::parse::Lookahead1 - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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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="Support for checking the next token in a stream to decide how to parse."><meta name="keywords" content="rust, rustlang, rust-lang, Lookahead1"><title>Lookahead1 in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Lookahead1</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.error">error</a><a href="#method.peek">peek</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Lookahead1" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">Lookahead1</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/lookahead.rs.html#59-63" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct Lookahead1<'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Support for checking the next token in a stream to decide how to parse.</p>
|
||||
<p>An important advantage over <a href="../../syn/parse/struct.ParseBuffer.html#method.peek"><code>ParseStream::peek</code></a> is that here we
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Lookahead1</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.error">error</a><a href="#method.peek">peek</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Lookahead1" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">Lookahead1</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/lookahead.rs.html#59-63" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust struct">pub struct Lookahead1<'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Support for checking the next token in a stream to decide how to parse.</p>
|
||||
<p>An important advantage over <a href="struct.ParseBuffer.html#method.peek"><code>ParseStream::peek</code></a> is that here we
|
||||
automatically construct an appropriate error message based on the token
|
||||
alternatives that get peeked. If you are producing your own error message,
|
||||
go ahead and use <code>ParseStream::peek</code> instead.</p>
|
||||
<p>Use <a href="../../syn/parse/struct.ParseBuffer.html#method.lookahead1"><code>ParseStream::lookahead1</code></a> to construct this object.</p>
|
||||
<p>Use <a href="struct.ParseBuffer.html#method.lookahead1"><code>ParseStream::lookahead1</code></a> to construct this object.</p>
|
||||
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">ConstParam</span>, <span class="ident">Ident</span>, <span class="ident">Lifetime</span>, <span class="ident">LifetimeDef</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>, <span class="ident">TypeParam</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="comment">// A generic parameter, a single one of the comma-separated elements inside</span>
|
||||
<span class="comment">// angle brackets in:</span>
|
||||
@@ -33,17 +33,17 @@ go ahead and use <code>ParseStream::peek</code> instead.</p>
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">let</span> <span class="ident">lookahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">lookahead1</span>();
|
||||
<span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">Ident</span>) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam</span>::<span class="ident">Type</span>)
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam::Type</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</span>) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam</span>::<span class="ident">Lifetime</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">const</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam</span>::<span class="ident">Const</span>)
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam::Lifetime</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">const</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam::Const</span>)
|
||||
} <span class="kw">else</span> {
|
||||
<span class="prelude-val">Err</span>(<span class="ident">lookahead</span>.<span class="ident">error</span>())
|
||||
}
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl<'a> <a class="struct" href="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/lookahead.rs.html#85-134" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.peek" class="method"><code>pub fn <a href="#method.peek" class="fnname">peek</a><T: <a class="trait" href="../../syn/parse/trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/syn/lookahead.rs.html#100-103" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the next token in the parse stream to determine whether it
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl" class="impl"><code class="in-band">impl<'a> <a class="struct" href="struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/lookahead.rs.html#85-134" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.peek" class="method"><code>pub fn <a href="#method.peek" class="fnname">peek</a><T: <a class="trait" href="trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a href="#method.peek" class="anchor"></a><a class="srclink" href="../../src/syn/lookahead.rs.html#100-103" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the next token in the parse stream to determine whether it
|
||||
matches the requested type of token.</p>
|
||||
<h1 id="syntax" class="section-header"><a href="#syntax">Syntax</a></h1>
|
||||
<p>Note that this method does not use turbofish syntax. Pass the peek type
|
||||
@@ -56,17 +56,17 @@ inside of parentheses.</p>
|
||||
<li><code>input.peek(Lifetime)</code></li>
|
||||
<li><code>input.peek(token::Brace)</code></li>
|
||||
</ul>
|
||||
</div><h4 id="method.error" class="method"><code>pub fn <a href="#method.error" class="fnname">error</a>(self) -> <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a class="srclink" href="../../src/syn/lookahead.rs.html#109-133" title="goto source code">[src]</a></h4><div class="docblock"><p>Triggers an error at the current position of the parse stream.</p>
|
||||
</div><h4 id="method.error" class="method"><code>pub fn <a href="#method.error" class="fnname">error</a>(self) -> <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#method.error" class="anchor"></a><a class="srclink" href="../../src/syn/lookahead.rs.html#109-133" title="goto source code">[src]</a></h4><div class="docblock"><p>Triggers an error at the current position of the parse stream.</p>
|
||||
<p>The error message will identify all of the expected token types that
|
||||
have been peeked against this lookahead instance.</p>
|
||||
</div></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">impl<'a> !<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="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-Send" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl<'a> !<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="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-Sync" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<'a> <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="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-Unpin" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
|
||||
</div></div></details><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><h3 id="impl-Send" class="impl"><code class="in-band">impl<'a> !<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.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-Send" class="anchor"></a></h3><h3 id="impl-Sync" class="impl"><code class="in-band">impl<'a> !<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.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-Sync" class="anchor"></a></h3><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<'a> <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.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-Unpin" class="anchor"></a></h3><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3></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" open><summary><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.type_id" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a href="#method.type_id" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a href="#method.borrow" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a href="#method.borrow_mut" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a href="#method.from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a href="#method.into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code><a href="#associatedtype.Error" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code><a href="#associatedtype.Error-1" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details></div></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
|
||||
<script src="../../main.js"></script></body></html>
|
||||
@@ -1,18 +1,18 @@
|
||||
<!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="An empty syntax tree node that consumes no tokens when parsed."><meta name="keywords" content="rust, rustlang, rust-lang, Nothing"><title>syn::parse::Nothing - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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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="An empty syntax tree node that consumes no tokens when parsed."><meta name="keywords" content="rust, rustlang, rust-lang, Nothing"><title>Nothing in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Nothing</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Parse">Parse</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Nothing" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">Nothing</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#1281" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct Nothing;</pre></div><div class="docblock"><p>An empty syntax tree node that consumes no tokens when parsed.</p>
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct Nothing</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Parse">Parse</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Nothing" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">Nothing</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#1281" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust struct">pub struct Nothing;</pre></div><div class="docblock"><p>An empty syntax tree node that consumes no tokens when parsed.</p>
|
||||
<p>This is useful for attribute macros that want to ensure they are not
|
||||
provided any attribute args.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro</span>::<span class="ident">TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse_macro_input</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::<span class="ident">Nothing</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro::TokenStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse_macro_input</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse::Nothing</span>;
|
||||
|
||||
<span class="attribute">#[<span class="ident">proc_macro_attribute</span>]</span>
|
||||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">my_attr</span>(<span class="ident">args</span>: <span class="ident">TokenStream</span>, <span class="ident">input</span>: <span class="ident">TokenStream</span>) <span class="op">-</span><span class="op">></span> <span class="ident">TokenStream</span> {
|
||||
<span class="macro">parse_macro_input</span><span class="macro">!</span>(<span class="ident">args</span> <span class="kw">as</span> <span class="ident">Nothing</span>);
|
||||
<span class="macro">parse_macro_input!</span>(<span class="ident">args</span> <span class="kw">as</span> <span class="ident">Nothing</span>);
|
||||
|
||||
<span class="comment">/* ... */</span>
|
||||
}</pre></div>
|
||||
@@ -22,14 +22,14 @@ provided any attribute args.</p>
|
||||
3 | #[my_attr(asdf)]
|
||||
| ^^^^
|
||||
</code></pre>
|
||||
</div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Parse" class="impl"><code class="in-band">impl <a class="trait" href="../../syn/parse/trait.Parse.html" title="trait syn::parse::Parse">Parse</a> for <a class="struct" href="../../syn/parse/struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Parse" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1283-1287" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.parse" class="method hidden"><code>fn <a href="../../syn/parse/trait.Parse.html#tymethod.parse" class="fnname">parse</a>(_input: <a class="type" href="../../syn/parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self></code><a class="srclink" href="../../src/syn/parse.rs.html#1284-1286" title="goto source code">[src]</a></h4></div></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">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="../../syn/parse/struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Send" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">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="../../syn/parse/struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Sync" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">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="../../syn/parse/struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Unpin" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
|
||||
</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><h3 id="impl-Parse" class="impl"><code class="in-band">impl <a class="trait" href="trait.Parse.html" title="trait syn::parse::Parse">Parse</a> for <a class="struct" href="struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Parse" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1283-1287" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.parse" class="method hidden trait-impl"><code>fn <a href="trait.Parse.html#tymethod.parse" class="fnname">parse</a>(_input: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self></code><a href="#method.parse" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1284-1286" title="goto source code">[src]</a></h4></div></details></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><h3 id="impl-Send" class="impl"><code class="in-band">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.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Send" class="anchor"></a></h3><h3 id="impl-Sync" class="impl"><code class="in-band">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.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Sync" class="anchor"></a></h3><h3 id="impl-Unpin" class="impl"><code class="in-band">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.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-Unpin" class="anchor"></a></h3><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.Nothing.html" title="struct syn::parse::Nothing">Nothing</a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3></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" open><summary><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.type_id" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a href="#method.type_id" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a href="#method.borrow" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a href="#method.borrow_mut" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a href="#method.from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a href="#method.into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code><a href="#associatedtype.Error" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code><a href="#associatedtype.Error-1" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct ParseBuffer</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.call">call</a><a href="#method.cursor">cursor</a><a href="#method.error">error</a><a href="#method.fork">fork</a><a href="#method.is_empty">is_empty</a><a href="#method.lookahead1">lookahead1</a><a href="#method.parse">parse</a><a href="#method.parse_terminated">parse_terminated</a><a href="#method.peek">peek</a><a href="#method.peek2">peek2</a><a href="#method.peek3">peek3</a><a href="#method.span">span</a><a href="#method.step">step</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Display">Display</a><a href="#impl-Drop">Drop</a><a href="#impl-Speculative">Speculative</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">!UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToString">ToString</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="ParseBuffer" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">ParseBuffer</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#249-265" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct ParseBuffer<'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Cursor position within a buffered token stream.</p>
|
||||
<p>This type is more commonly used through the type alias <a href="../../syn/parse/type.ParseStream.html" title="ParseStream"><code>ParseStream</code></a> which
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct ParseBuffer</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.call">call</a><a href="#method.cursor">cursor</a><a href="#method.error">error</a><a href="#method.fork">fork</a><a href="#method.is_empty">is_empty</a><a href="#method.lookahead1">lookahead1</a><a href="#method.parse">parse</a><a href="#method.parse_terminated">parse_terminated</a><a href="#method.peek">peek</a><a href="#method.peek2">peek2</a><a href="#method.peek3">peek3</a><a href="#method.span">span</a><a href="#method.step">step</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Display">Display</a><a href="#impl-Drop">Drop</a><a href="#impl-Speculative">Speculative</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">!RefUnwindSafe</a><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">!UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToString">ToString</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="ParseBuffer" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">ParseBuffer</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#249-265" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust struct">pub struct ParseBuffer<'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Cursor position within a buffered token stream.</p>
|
||||
<p>This type is more commonly used through the type alias <a href="type.ParseStream.html" title="ParseStream"><code>ParseStream</code></a> which
|
||||
is an alias for <code>&ParseBuffer</code>.</p>
|
||||
<p><code>ParseStream</code> is the input type for all parser functions in Syn. They have
|
||||
the signature <code>fn(ParseStream) -> Result<T></code>.</p>
|
||||
@@ -11,21 +11,21 @@ the signature <code>fn(ParseStream) -> Result<T></code>.</p>
|
||||
looking to invoke a parser function that requires <code>ParseStream</code> as input,
|
||||
you will need to go through one of the public parsing entry points.</p>
|
||||
<ul>
|
||||
<li>The <a href="../../syn/macro.parse_macro_input.html" title="parse_macro_input!"><code>parse_macro_input!</code></a> macro if parsing input of a procedural macro;</li>
|
||||
<li>One of <a href="../../syn/parse/index.html#the-synparse-functions">the <code>syn::parse*</code> functions</a>; or</li>
|
||||
<li>A method of the <a href="../../syn/parse/trait.Parser.html" title="Parser"><code>Parser</code></a> trait.</li>
|
||||
<li>The <a href="../macro.parse_macro_input.html" title="parse_macro_input!"><code>parse_macro_input!</code></a> macro if parsing input of a procedural macro;</li>
|
||||
<li>One of <a href="index.html#the-synparse-functions">the <code>syn::parse*</code> functions</a>; or</li>
|
||||
<li>A method of the <a href="trait.Parser.html" title="Parser"><code>Parser</code></a> trait.</li>
|
||||
</ul>
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl<'a> <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#461-1060" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.parse" class="method"><code>pub fn <a href="#method.parse" class="fnname">parse</a><T: <a class="trait" href="../../syn/parse/trait.Parse.html" title="trait syn::parse::Parse">Parse</a>>(&self) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><T></code><a class="srclink" href="../../src/syn/parse.rs.html#464-466" title="goto source code">[src]</a></h4><div class="docblock"><p>Parses a syntax tree node of type <code>T</code>, advancing the position of our
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl" class="impl"><code class="in-band">impl<'a> <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#461-1060" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.parse" class="method"><code>pub fn <a href="#method.parse" class="fnname">parse</a><T: <a class="trait" href="trait.Parse.html" title="trait syn::parse::Parse">Parse</a>>(&self) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><T></code><a href="#method.parse" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#464-466" title="goto source code">[src]</a></h4><div class="docblock"><p>Parses a syntax tree node of type <code>T</code>, advancing the position of our
|
||||
parse stream past it.</p>
|
||||
</div><h4 id="method.call" class="method"><code>pub fn <a href="#method.call" class="fnname">call</a><T>(<br> &self, <br> function: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.fn.html">fn</a>(_: <a class="type" href="../../syn/parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><T><br>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><T></code><a class="srclink" href="../../src/syn/parse.rs.html#504-506" title="goto source code">[src]</a></h4><div class="docblock"><p>Calls the given parser function to parse a syntax tree node of type <code>T</code>
|
||||
</div><h4 id="method.call" class="method"><code>pub fn <a href="#method.call" class="fnname">call</a><T>(<br> &self, <br> function: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.fn.html">fn</a>(_: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><T><br>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><T></code><a href="#method.call" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#504-506" title="goto source code">[src]</a></h4><div class="docblock"><p>Calls the given parser function to parse a syntax tree node of type <code>T</code>
|
||||
from this stream.</p>
|
||||
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
|
||||
<p>The parser below invokes <a href="../../syn/struct.Attribute.html#method.parse_outer"><code>Attribute::parse_outer</code></a> to parse a vector of
|
||||
<p>The parser below invokes <a href="../struct.Attribute.html#method.parse_outer"><code>Attribute::parse_outer</code></a> to parse a vector of
|
||||
zero or more outer attributes.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">Attribute</span>, <span class="ident">Ident</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="comment">// Parses a unit struct with attributes.</span>
|
||||
<span class="comment">//</span>
|
||||
@@ -33,22 +33,22 @@ zero or more outer attributes.</p>
|
||||
<span class="comment">// struct S;</span>
|
||||
<span class="kw">struct</span> <span class="ident">UnitStruct</span> {
|
||||
<span class="ident">attrs</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Attribute</span><span class="op">></span>,
|
||||
<span class="ident">struct_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">struct</span>],
|
||||
<span class="ident">struct_token</span>: <span class="macro">Token!</span>[<span class="kw">struct</span>],
|
||||
<span class="ident">name</span>: <span class="ident">Ident</span>,
|
||||
<span class="ident">semi_token</span>: <span class="macro">Token</span><span class="macro">!</span>[;],
|
||||
<span class="ident">semi_token</span>: <span class="macro">Token!</span>[;],
|
||||
}
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">UnitStruct</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">UnitStruct</span> {
|
||||
<span class="ident">attrs</span>: <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute</span>::<span class="ident">parse_outer</span>)<span class="question-mark">?</span>,
|
||||
<span class="ident">attrs</span>: <span class="ident">input</span>.<span class="ident">call</span>(<span class="ident">Attribute::parse_outer</span>)<span class="question-mark">?</span>,
|
||||
<span class="ident">struct_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">name</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">semi_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
})
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.peek" class="method"><code>pub fn <a href="#method.peek" class="fnname">peek</a><T: <a class="trait" href="../../syn/parse/trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/syn/parse.rs.html#580-583" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the next token in the parse stream to determine whether it
|
||||
</div><h4 id="method.peek" class="method"><code>pub fn <a href="#method.peek" class="fnname">peek</a><T: <a class="trait" href="trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a href="#method.peek" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#580-583" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the next token in the parse stream to determine whether it
|
||||
matches the requested type of token.</p>
|
||||
<p>Does not advance the position of the parse stream.</p>
|
||||
<h1 id="syntax" class="section-header"><a href="#syntax">Syntax</a></h1>
|
||||
@@ -68,33 +68,33 @@ token in the input is either <code>where</code> or an opening curly brace.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">braced</span>, <span class="ident">token</span>, <span class="ident">Generics</span>, <span class="ident">Ident</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>, <span class="ident">TypeParamBound</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">punctuated</span>::<span class="ident">Punctuated</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::punctuated::Punctuated</span>;
|
||||
|
||||
<span class="comment">// Parses a trait definition containing no associated items.</span>
|
||||
<span class="comment">//</span>
|
||||
<span class="comment">// trait Marker<'de, T>: A + B<'de> where Box<T>: Clone {}</span>
|
||||
<span class="kw">struct</span> <span class="ident">MarkerTrait</span> {
|
||||
<span class="ident">trait_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">trait</span>],
|
||||
<span class="ident">trait_token</span>: <span class="macro">Token!</span>[<span class="kw">trait</span>],
|
||||
<span class="ident">ident</span>: <span class="ident">Ident</span>,
|
||||
<span class="ident">generics</span>: <span class="ident">Generics</span>,
|
||||
<span class="ident">colon_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token</span><span class="macro">!</span>[:]<span class="op">></span>,
|
||||
<span class="ident">supertraits</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">TypeParamBound</span>, <span class="macro">Token</span><span class="macro">!</span>[<span class="op">+</span>]<span class="op">></span>,
|
||||
<span class="ident">brace_token</span>: <span class="ident">token</span>::<span class="ident">Brace</span>,
|
||||
<span class="ident">colon_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[:]<span class="op">></span>,
|
||||
<span class="ident">supertraits</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">TypeParamBound</span>, <span class="macro">Token!</span>[<span class="op">+</span>]<span class="op">></span>,
|
||||
<span class="ident">brace_token</span>: <span class="ident">token::Brace</span>,
|
||||
}
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">MarkerTrait</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">let</span> <span class="ident">trait_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">trait</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">trait_token</span>: <span class="macro">Token!</span>[<span class="kw">trait</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">ident</span>: <span class="ident">Ident</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">generics</span>: <span class="ident">Generics</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">colon_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token</span><span class="macro">!</span>[:]<span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">colon_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[:]<span class="op">></span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">supertraits</span> <span class="op">=</span> <span class="ident">Punctuated</span>::<span class="ident">new</span>();
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">supertraits</span> <span class="op">=</span> <span class="ident">Punctuated::new</span>();
|
||||
<span class="kw">if</span> <span class="ident">colon_token</span>.<span class="ident">is_some</span>() {
|
||||
<span class="kw">loop</span> {
|
||||
<span class="ident">supertraits</span>.<span class="ident">push_value</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>);
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">where</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token</span>::<span class="ident">Brace</span>) {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">where</span>]) <span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Brace</span>) {
|
||||
<span class="kw">break</span>;
|
||||
}
|
||||
<span class="ident">supertraits</span>.<span class="ident">push_punct</span>(<span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>);
|
||||
@@ -103,7 +103,7 @@ token in the input is either <code>where</code> or an opening curly brace.</p>
|
||||
|
||||
<span class="ident">generics</span>.<span class="ident">where_clause</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">content</span>;
|
||||
<span class="kw">let</span> <span class="ident">empty_brace_token</span> <span class="op">=</span> <span class="macro">braced</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>);
|
||||
<span class="kw">let</span> <span class="ident">empty_brace_token</span> <span class="op">=</span> <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>);
|
||||
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">MarkerTrait</span> {
|
||||
<span class="ident">trait_token</span>,
|
||||
@@ -115,7 +115,7 @@ token in the input is either <code>where</code> or an opening curly brace.</p>
|
||||
})
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.peek2" class="method"><code>pub fn <a href="#method.peek2" class="fnname">peek2</a><T: <a class="trait" href="../../syn/parse/trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/syn/parse.rs.html#619-631" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the second-next token in the parse stream.</p>
|
||||
</div><h4 id="method.peek2" class="method"><code>pub fn <a href="#method.peek2" class="fnname">peek2</a><T: <a class="trait" href="trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a href="#method.peek2" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#619-631" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the second-next token in the parse stream.</p>
|
||||
<p>This is commonly useful as a way to implement contextual keywords.</p>
|
||||
<h1 id="example-2" class="section-header"><a href="#example-2">Example</a></h1>
|
||||
<p>This example needs to use <code>peek2</code> because the symbol <code>union</code> is not a
|
||||
@@ -124,7 +124,7 @@ the very next token is <code>union</code>, because someone is free to write a <c
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">Ident</span>, <span class="ident">ItemUnion</span>, <span class="ident">Macro</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="comment">// Parses either a union or a macro invocation.</span>
|
||||
<span class="kw">enum</span> <span class="ident">UnionOrMacro</span> {
|
||||
@@ -136,33 +136,33 @@ the very next token is <code>union</code>, because someone is free to write a <c
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">UnionOrMacro</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="ident">union</span>]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">Ident</span>) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">UnionOrMacro</span>::<span class="ident">Union</span>)
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="ident">union</span>]) <span class="op">&&</span> <span class="ident">input</span>.<span class="ident">peek2</span>(<span class="ident">Ident</span>) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">UnionOrMacro::Union</span>)
|
||||
} <span class="kw">else</span> {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">UnionOrMacro</span>::<span class="ident">Macro</span>)
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">UnionOrMacro::Macro</span>)
|
||||
}
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.peek3" class="method"><code>pub fn <a href="#method.peek3" class="fnname">peek3</a><T: <a class="trait" href="../../syn/parse/trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/syn/parse.rs.html#634-650" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the third-next token in the parse stream.</p>
|
||||
</div><h4 id="method.parse_terminated" class="method"><code>pub fn <a href="#method.parse_terminated" class="fnname">parse_terminated</a><T, P: <a class="trait" href="../../syn/parse/trait.Parse.html" title="trait syn::parse::Parse">Parse</a>>(<br> &self, <br> parser: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.fn.html">fn</a>(_: <a class="type" href="../../syn/parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><T><br>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><<a class="struct" href="../../syn/punctuated/struct.Punctuated.html" title="struct syn::punctuated::Punctuated">Punctuated</a><T, P>></code><a class="srclink" href="../../src/syn/parse.rs.html#696-701" title="goto source code">[src]</a></h4><div class="docblock"><p>Parses zero or more occurrences of <code>T</code> separated by punctuation of type
|
||||
</div><h4 id="method.peek3" class="method"><code>pub fn <a href="#method.peek3" class="fnname">peek3</a><T: <a class="trait" href="trait.Peek.html" title="trait syn::parse::Peek">Peek</a>>(&self, token: T) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a href="#method.peek3" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#634-650" title="goto source code">[src]</a></h4><div class="docblock"><p>Looks at the third-next token in the parse stream.</p>
|
||||
</div><h4 id="method.parse_terminated" class="method"><code>pub fn <a href="#method.parse_terminated" class="fnname">parse_terminated</a><T, P: <a class="trait" href="trait.Parse.html" title="trait syn::parse::Parse">Parse</a>>(<br> &self, <br> parser: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.fn.html">fn</a>(_: <a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><T><br>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><<a class="struct" href="../punctuated/struct.Punctuated.html" title="struct syn::punctuated::Punctuated">Punctuated</a><T, P>></code><a href="#method.parse_terminated" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#696-701" title="goto source code">[src]</a></h4><div class="docblock"><p>Parses zero or more occurrences of <code>T</code> separated by punctuation of type
|
||||
<code>P</code>, with optional trailing punctuation.</p>
|
||||
<p>Parsing continues until the end of this parse stream. The entire content
|
||||
of this parse stream must consist of <code>T</code> and <code>P</code>.</p>
|
||||
<h1 id="example-3" class="section-header"><a href="#example-3">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">parenthesized</span>, <span class="ident">token</span>, <span class="ident">Ident</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>, <span class="ident">Type</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">punctuated</span>::<span class="ident">Punctuated</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::punctuated::Punctuated</span>;
|
||||
|
||||
<span class="comment">// Parse a simplified tuple struct syntax like:</span>
|
||||
<span class="comment">//</span>
|
||||
<span class="comment">// struct S(A, B);</span>
|
||||
<span class="kw">struct</span> <span class="ident">TupleStruct</span> {
|
||||
<span class="ident">struct_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">struct</span>],
|
||||
<span class="ident">struct_token</span>: <span class="macro">Token!</span>[<span class="kw">struct</span>],
|
||||
<span class="ident">ident</span>: <span class="ident">Ident</span>,
|
||||
<span class="ident">paren_token</span>: <span class="ident">token</span>::<span class="ident">Paren</span>,
|
||||
<span class="ident">fields</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Type</span>, <span class="macro">Token</span><span class="macro">!</span>[,]<span class="op">></span>,
|
||||
<span class="ident">semi_token</span>: <span class="macro">Token</span><span class="macro">!</span>[;],
|
||||
<span class="ident">paren_token</span>: <span class="ident">token::Paren</span>,
|
||||
<span class="ident">fields</span>: <span class="ident">Punctuated</span><span class="op"><</span><span class="ident">Type</span>, <span class="macro">Token!</span>[,]<span class="op">></span>,
|
||||
<span class="ident">semi_token</span>: <span class="macro">Token!</span>[;],
|
||||
}
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">TupleStruct</span> {
|
||||
@@ -171,25 +171,25 @@ of this parse stream must consist of <code>T</code> and <code>P</code>.</p>
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">TupleStruct</span> {
|
||||
<span class="ident">struct_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">ident</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">paren_token</span>: <span class="macro">parenthesized</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">fields</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Type</span>::<span class="ident">parse</span>)<span class="question-mark">?</span>,
|
||||
<span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">fields</span>: <span class="ident">content</span>.<span class="ident">parse_terminated</span>(<span class="ident">Type::parse</span>)<span class="question-mark">?</span>,
|
||||
<span class="ident">semi_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
})
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.is_empty" class="method"><code>pub fn <a href="#method.is_empty" class="fnname">is_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class="srclink" href="../../src/syn/parse.rs.html#740-742" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns whether there are tokens remaining in this stream.</p>
|
||||
</div><h4 id="method.is_empty" class="method"><code>pub fn <a href="#method.is_empty" class="fnname">is_empty</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a href="#method.is_empty" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#740-742" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns whether there are tokens remaining in this stream.</p>
|
||||
<p>This method returns true at the end of the content of a set of
|
||||
delimiters, as well as at the very end of the complete macro input.</p>
|
||||
<h1 id="example-4" class="section-header"><a href="#example-4">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">braced</span>, <span class="ident">token</span>, <span class="ident">Ident</span>, <span class="ident">Item</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="comment">// Parses a Rust `mod m { ... }` containing zero or more items.</span>
|
||||
<span class="kw">struct</span> <span class="ident">Mod</span> {
|
||||
<span class="ident">mod_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">mod</span>],
|
||||
<span class="ident">mod_token</span>: <span class="macro">Token!</span>[<span class="kw">mod</span>],
|
||||
<span class="ident">name</span>: <span class="ident">Ident</span>,
|
||||
<span class="ident">brace_token</span>: <span class="ident">token</span>::<span class="ident">Brace</span>,
|
||||
<span class="ident">brace_token</span>: <span class="ident">token::Brace</span>,
|
||||
<span class="ident">items</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">Item</span><span class="op">></span>,
|
||||
}
|
||||
|
||||
@@ -199,9 +199,9 @@ delimiters, as well as at the very end of the complete macro input.</p>
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">Mod</span> {
|
||||
<span class="ident">mod_token</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">name</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
<span class="ident">brace_token</span>: <span class="macro">braced</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">brace_token</span>: <span class="macro">braced!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">items</span>: {
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">items</span> <span class="op">=</span> <span class="ident">Vec</span>::<span class="ident">new</span>();
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">items</span> <span class="op">=</span> <span class="ident">Vec::new</span>();
|
||||
<span class="kw">while</span> <span class="op">!</span><span class="ident">content</span>.<span class="ident">is_empty</span>() {
|
||||
<span class="ident">items</span>.<span class="ident">push</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>);
|
||||
}
|
||||
@@ -210,12 +210,12 @@ delimiters, as well as at the very end of the complete macro input.</p>
|
||||
})
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.lookahead1" class="method"><code>pub fn <a href="#method.lookahead1" class="fnname">lookahead1</a>(&self) -> <a class="struct" href="../../syn/parse/struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a class="srclink" href="../../src/syn/parse.rs.html#785-787" title="goto source code">[src]</a></h4><div class="docblock"><p>Constructs a helper for peeking at the next token in this stream and
|
||||
</div><h4 id="method.lookahead1" class="method"><code>pub fn <a href="#method.lookahead1" class="fnname">lookahead1</a>(&self) -> <a class="struct" href="struct.Lookahead1.html" title="struct syn::parse::Lookahead1">Lookahead1</a><'a></code><a href="#method.lookahead1" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#785-787" title="goto source code">[src]</a></h4><div class="docblock"><p>Constructs a helper for peeking at the next token in this stream and
|
||||
building an error message if it is not one of a set of expected tokens.</p>
|
||||
<h1 id="example-5" class="section-header"><a href="#example-5">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">ConstParam</span>, <span class="ident">Ident</span>, <span class="ident">Lifetime</span>, <span class="ident">LifetimeDef</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>, <span class="ident">TypeParam</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="comment">// A generic parameter, a single one of the comma-separated elements inside</span>
|
||||
<span class="comment">// angle brackets in:</span>
|
||||
@@ -238,17 +238,17 @@ building an error message if it is not one of a set of expected tokens.</p>
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">let</span> <span class="ident">lookahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">lookahead1</span>();
|
||||
<span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">Ident</span>) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam</span>::<span class="ident">Type</span>)
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam::Type</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="ident">Lifetime</span>) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam</span>::<span class="ident">Lifetime</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">const</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam</span>::<span class="ident">Const</span>)
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam::Lifetime</span>)
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">lookahead</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">const</span>]) {
|
||||
<span class="ident">input</span>.<span class="ident">parse</span>().<span class="ident">map</span>(<span class="ident">GenericParam::Const</span>)
|
||||
} <span class="kw">else</span> {
|
||||
<span class="prelude-val">Err</span>(<span class="ident">lookahead</span>.<span class="ident">error</span>())
|
||||
}
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.fork" class="method"><code>pub fn <a href="#method.fork" class="fnname">fork</a>(&self) -> Self</code><a class="srclink" href="../../src/syn/parse.rs.html#915-924" title="goto source code">[src]</a></h4><div class="docblock"><p>Forks a parse stream so that parsing tokens out of either the original
|
||||
</div><h4 id="method.fork" class="method"><code>pub fn <a href="#method.fork" class="fnname">fork</a>(&self) -> Self</code><a href="#method.fork" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#915-924" title="goto source code">[src]</a></h4><div class="docblock"><p>Forks a parse stream so that parsing tokens out of either the original
|
||||
or the fork does not advance the position of the other.</p>
|
||||
<h1 id="performance" class="section-header"><a href="#performance">Performance</a></h1>
|
||||
<p>Forking a parse stream is a cheap fixed amount of work and does not
|
||||
@@ -265,11 +265,11 @@ once.</p>
|
||||
parse stream. Only use a fork when the amount of work performed against
|
||||
the fork is small and bounded.</p>
|
||||
<p>When complex speculative parsing against the forked stream is
|
||||
unavoidable, use <a href="../../syn/parse/discouraged/trait.Speculative.html"><code>parse::discouraged::Speculative</code></a> to advance the
|
||||
unavoidable, use <a href="discouraged/trait.Speculative.html"><code>parse::discouraged::Speculative</code></a> to advance the
|
||||
original stream once the fork’s parse is determined to have been
|
||||
successful.</p>
|
||||
<p>For a lower level way to perform speculative parsing at the token level,
|
||||
consider using <a href="../../syn/parse/struct.ParseBuffer.html#method.step"><code>ParseStream::step</code></a> instead.</p>
|
||||
consider using <a href="struct.ParseBuffer.html#method.step"><code>ParseStream::step</code></a> instead.</p>
|
||||
<h1 id="example-6" class="section-header"><a href="#example-6">Example</a></h1>
|
||||
<p>The parse implementation shown here parses possibly restricted <code>pub</code>
|
||||
visibilities.</p>
|
||||
@@ -296,48 +296,48 @@ work performed against the forked parse stream.</p>
|
||||
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">parenthesized</span>, <span class="ident">token</span>, <span class="ident">Ident</span>, <span class="ident">Path</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">ext</span>::<span class="ident">IdentExt</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::ext::IdentExt</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="kw">struct</span> <span class="ident">PubVisibility</span> {
|
||||
<span class="ident">pub_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">pub</span>],
|
||||
<span class="ident">pub_token</span>: <span class="macro">Token!</span>[<span class="kw">pub</span>],
|
||||
<span class="ident">restricted</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="ident">Restricted</span><span class="op">></span>,
|
||||
}
|
||||
|
||||
<span class="kw">struct</span> <span class="ident">Restricted</span> {
|
||||
<span class="ident">paren_token</span>: <span class="ident">token</span>::<span class="ident">Paren</span>,
|
||||
<span class="ident">in_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token</span><span class="macro">!</span>[<span class="kw">in</span>]<span class="op">></span>,
|
||||
<span class="ident">paren_token</span>: <span class="ident">token::Paren</span>,
|
||||
<span class="ident">in_token</span>: <span class="prelude-ty">Option</span><span class="op"><</span><span class="macro">Token!</span>[<span class="kw">in</span>]<span class="op">></span>,
|
||||
<span class="ident">path</span>: <span class="ident">Path</span>,
|
||||
}
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">PubVisibility</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">let</span> <span class="ident">pub_token</span>: <span class="macro">Token</span><span class="macro">!</span>[<span class="kw">pub</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
<span class="kw">let</span> <span class="ident">pub_token</span>: <span class="macro">Token!</span>[<span class="kw">pub</span>] <span class="op">=</span> <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>;
|
||||
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token</span>::<span class="ident">Paren</span>) {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="ident">token::Paren</span>) {
|
||||
<span class="kw">let</span> <span class="ident">ahead</span> <span class="op">=</span> <span class="ident">input</span>.<span class="ident">fork</span>();
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">content</span>;
|
||||
<span class="macro">parenthesized</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">ahead</span>);
|
||||
<span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">ahead</span>);
|
||||
|
||||
<span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">crate</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="self">self</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">super</span>])
|
||||
<span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">crate</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="self">self</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">super</span>])
|
||||
{
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">PubVisibility</span> {
|
||||
<span class="ident">pub_token</span>,
|
||||
<span class="ident">restricted</span>: <span class="prelude-val">Some</span>(<span class="ident">Restricted</span> {
|
||||
<span class="ident">paren_token</span>: <span class="macro">parenthesized</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">in_token</span>: <span class="prelude-val">None</span>,
|
||||
<span class="ident">path</span>: <span class="ident">Path</span>::<span class="ident">from</span>(<span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Ident</span>::<span class="ident">parse_any</span>)<span class="question-mark">?</span>),
|
||||
<span class="ident">path</span>: <span class="ident">Path::from</span>(<span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Ident::parse_any</span>)<span class="question-mark">?</span>),
|
||||
}),
|
||||
});
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">in</span>]) {
|
||||
} <span class="kw">else</span> <span class="kw">if</span> <span class="ident">content</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">in</span>]) {
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(<span class="ident">PubVisibility</span> {
|
||||
<span class="ident">pub_token</span>,
|
||||
<span class="ident">restricted</span>: <span class="prelude-val">Some</span>(<span class="ident">Restricted</span> {
|
||||
<span class="ident">paren_token</span>: <span class="macro">parenthesized</span><span class="macro">!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">paren_token</span>: <span class="macro">parenthesized!</span>(<span class="ident">content</span> <span class="kw">in</span> <span class="ident">input</span>),
|
||||
<span class="ident">in_token</span>: <span class="prelude-val">Some</span>(<span class="ident">content</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>),
|
||||
<span class="ident">path</span>: <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Path</span>::<span class="ident">parse_mod_style</span>)<span class="question-mark">?</span>,
|
||||
<span class="ident">path</span>: <span class="ident">content</span>.<span class="ident">call</span>(<span class="ident">Path::parse_mod_style</span>)<span class="question-mark">?</span>,
|
||||
}),
|
||||
});
|
||||
}
|
||||
@@ -349,11 +349,11 @@ work performed against the forked parse stream.</p>
|
||||
})
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.error" class="method"><code>pub fn <a href="#method.error" class="fnname">error</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(&self, message: T) -> <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a class="srclink" href="../../src/syn/parse.rs.html#954-956" title="goto source code">[src]</a></h4><div class="docblock"><p>Triggers an error at the current position of the parse stream.</p>
|
||||
</div><h4 id="method.error" class="method"><code>pub fn <a href="#method.error" class="fnname">error</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(&self, message: T) -> <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#method.error" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#954-956" title="goto source code">[src]</a></h4><div class="docblock"><p>Triggers an error at the current position of the parse stream.</p>
|
||||
<h1 id="example-7" class="section-header"><a href="#example-7">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::{<span class="ident">Expr</span>, <span class="prelude-ty">Result</span>, <span class="ident">Token</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
<span class="kw">use</span> <span class="ident">syn::parse</span>::{<span class="ident">Parse</span>, <span class="ident">ParseStream</span>};
|
||||
|
||||
<span class="comment">// Some kind of loop: `while` or `for` or `loop`.</span>
|
||||
<span class="kw">struct</span> <span class="ident">Loop</span> {
|
||||
@@ -362,9 +362,9 @@ work performed against the forked parse stream.</p>
|
||||
|
||||
<span class="kw">impl</span> <span class="ident">Parse</span> <span class="kw">for</span> <span class="ident">Loop</span> {
|
||||
<span class="kw">fn</span> <span class="ident">parse</span>(<span class="ident">input</span>: <span class="ident">ParseStream</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">while</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">for</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token</span><span class="macro">!</span>[<span class="kw">loop</span>])
|
||||
<span class="kw">if</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">while</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">for</span>])
|
||||
<span class="op">|</span><span class="op">|</span> <span class="ident">input</span>.<span class="ident">peek</span>(<span class="macro">Token!</span>[<span class="kw">loop</span>])
|
||||
{
|
||||
<span class="prelude-val">Ok</span>(<span class="ident">Loop</span> {
|
||||
<span class="ident">expr</span>: <span class="ident">input</span>.<span class="ident">parse</span>()<span class="question-mark">?</span>,
|
||||
@@ -374,16 +374,16 @@ work performed against the forked parse stream.</p>
|
||||
}
|
||||
}
|
||||
}</pre></div>
|
||||
</div><h4 id="method.step" class="method"><code>pub fn <a href="#method.step" class="fnname">step</a><F, R>(&self, function: F) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><R> <span class="where fmt-newline">where<br> F: for<'c> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(<a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>R, <a class="struct" href="../../syn/buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'c><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>>, </span></code><a class="srclink" href="../../src/syn/parse.rs.html#1003-1031" title="goto source code">[src]</a></h4><div class="docblock"><p>Speculatively parses tokens from this parse stream, advancing the
|
||||
</div><h4 id="method.step" class="method"><code>pub fn <a href="#method.step" class="fnname">step</a><F, R>(&self, function: F) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><R> <span class="where fmt-newline">where<br> F: for<'c> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(<a class="struct" href="struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">(</a>R, <a class="struct" href="../buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'c><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">)</a>>, </span></code><a href="#method.step" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1003-1031" title="goto source code">[src]</a></h4><div class="docblock"><p>Speculatively parses tokens from this parse stream, advancing the
|
||||
position of this stream only if parsing succeeds.</p>
|
||||
<p>This is a powerful low-level API used for defining the <code>Parse</code> impls of
|
||||
the basic built-in token types. It is not something that will be used
|
||||
widely outside of the Syn codebase.</p>
|
||||
<h1 id="example-8" class="section-header"><a href="#example-8">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro2</span>::<span class="ident">TokenTree</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="prelude-ty">Result</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::<span class="ident">ParseStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro2::TokenTree</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::Result</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse::ParseStream</span>;
|
||||
|
||||
<span class="comment">// This function advances the stream past the next occurrence of `@`. If</span>
|
||||
<span class="comment">// no `@` is present in the stream, the stream position is unchanged and</span>
|
||||
@@ -393,7 +393,7 @@ widely outside of the Syn codebase.</p>
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rest</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">cursor</span>;
|
||||
<span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">tt</span>, <span class="ident">next</span>)) <span class="op">=</span> <span class="ident">rest</span>.<span class="ident">token_tree</span>() {
|
||||
<span class="kw">match</span> <span class="kw-2">&</span><span class="ident">tt</span> {
|
||||
<span class="ident">TokenTree</span>::<span class="ident">Punct</span>(<span class="ident">punct</span>) <span class="kw">if</span> <span class="ident">punct</span>.<span class="ident">as_char</span>() <span class="op">=</span><span class="op">=</span> <span class="string">'@'</span> <span class="op">=</span><span class="op">></span> {
|
||||
<span class="ident">TokenTree::Punct</span>(<span class="ident">punct</span>) <span class="kw">if</span> <span class="ident">punct</span>.<span class="ident">as_char</span>() <span class="op">=</span><span class="op">=</span> <span class="string">'@'</span> <span class="op">=</span><span class="op">></span> {
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(((), <span class="ident">next</span>));
|
||||
}
|
||||
<span class="kw">_</span> <span class="op">=</span><span class="op">></span> <span class="ident">rest</span> <span class="op">=</span> <span class="ident">next</span>,
|
||||
@@ -402,26 +402,26 @@ widely outside of the Syn codebase.</p>
|
||||
<span class="prelude-val">Err</span>(<span class="ident">cursor</span>.<span class="ident">error</span>(<span class="string">"no `@` was found after this point"</span>))
|
||||
})
|
||||
}</pre></div>
|
||||
</div><h4 id="method.span" class="method"><code>pub fn <a href="#method.span" class="fnname">span</a>(&self) -> <a class="struct" href="../../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a></code><a class="srclink" href="../../src/syn/parse.rs.html#1036-1043" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the <code>Span</code> of the next token in the parse stream, or
|
||||
</div><h4 id="method.span" class="method"><code>pub fn <a href="#method.span" class="fnname">span</a>(&self) -> <a class="struct" href="../../proc_macro2/struct.Span.html" title="struct proc_macro2::Span">Span</a></code><a href="#method.span" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1036-1043" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the <code>Span</code> of the next token in the parse stream, or
|
||||
<code>Span::call_site()</code> if this parse stream has completely exhausted its
|
||||
input <code>TokenStream</code>.</p>
|
||||
</div><h4 id="method.cursor" class="method"><code>pub fn <a href="#method.cursor" class="fnname">cursor</a>(&self) -> <a class="struct" href="../../syn/buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'a></code><a class="srclink" href="../../src/syn/parse.rs.html#1050-1052" title="goto source code">[src]</a></h4><div class="docblock"><p>Provides low-level access to the token representation underlying this
|
||||
</div><h4 id="method.cursor" class="method"><code>pub fn <a href="#method.cursor" class="fnname">cursor</a>(&self) -> <a class="struct" href="../buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'a></code><a href="#method.cursor" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1050-1052" title="goto source code">[src]</a></h4><div class="docblock"><p>Provides low-level access to the token representation underlying this
|
||||
parse stream.</p>
|
||||
<p>Cursors are immutable so no operations you perform against the cursor
|
||||
will affect the state of this parse stream.</p>
|
||||
</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Debug" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#284-288" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class="srclink" href="../../src/syn/parse.rs.html#285-287" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div><h3 id="impl-Display" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Display" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#278-282" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt-1" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class="srclink" href="../../src/syn/parse.rs.html#279-281" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div><h3 id="impl-Drop" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html" title="trait core::ops::drop::Drop">Drop</a> for <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Drop" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#267-276" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.drop" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop" class="fnname">drop</a>(&mut self)</code><a class="srclink" href="../../src/syn/parse.rs.html#268-275" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Executes the destructor for this type. <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></p>
|
||||
</div></div><h3 id="impl-Speculative" class="impl"><code class="in-band">impl<'a> <a class="trait" href="../../syn/parse/discouraged/trait.Speculative.html" title="trait syn::parse::discouraged::Speculative">Speculative</a> for <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Speculative" class="anchor"></a><a class="srclink" href="../../src/syn/discouraged.rs.html#160-194" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.advance_to" class="method hidden"><code>fn <a href="../../syn/parse/discouraged/trait.Speculative.html#tymethod.advance_to" class="fnname">advance_to</a>(&self, fork: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><a class="srclink" href="../../src/syn/discouraged.rs.html#161-193" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Advance this parse stream to the position of a forked parse stream. <a href="../../syn/parse/discouraged/trait.Speculative.html#tymethod.advance_to">Read more</a></p>
|
||||
</div></div></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">impl<'a> !<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="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Send" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl<'a> !<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="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Sync" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<'a> <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="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Unpin" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-ToString" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-ToString" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2261-2274" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.to_string" class="method hidden"><code>pub default fn <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string" class="fnname">to_string</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2267" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
|
||||
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
|
||||
</div></div></details><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><h3 id="impl-Debug" class="impl"><code class="in-band">impl<'a> <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.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#284-288" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.fmt" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a href="#method.fmt" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#285-287" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Display" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> for <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Display" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#278-282" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.fmt-1" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a href="#method.fmt-1" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#279-281" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Drop" class="impl"><code class="in-band">impl<'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html" title="trait core::ops::drop::Drop">Drop</a> for <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Drop" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#267-276" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.drop" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop" class="fnname">drop</a>(&mut self)</code><a href="#method.drop" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#268-275" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Executes the destructor for this type. <a href="https://doc.rust-lang.org/nightly/core/ops/drop/trait.Drop.html#tymethod.drop">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Speculative" class="impl"><code class="in-band">impl<'a> <a class="trait" href="discouraged/trait.Speculative.html" title="trait syn::parse::discouraged::Speculative">Speculative</a> for <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Speculative" class="anchor"></a><a class="srclink" href="../../src/syn/discouraged.rs.html#160-194" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.advance_to" class="method hidden trait-impl"><code>fn <a href="discouraged/trait.Speculative.html#tymethod.advance_to" class="fnname">advance_to</a>(&self, fork: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><a href="#method.advance_to" class="anchor"></a><a class="srclink" href="../../src/syn/discouraged.rs.html#161-193" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Advance this parse stream to the position of a forked parse stream. <a href="discouraged/trait.Speculative.html#tymethod.advance_to">Read more</a></p>
|
||||
</div></div></details></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><h3 id="impl-Send" class="impl"><code class="in-band">impl<'a> !<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.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Send" class="anchor"></a></h3><h3 id="impl-Sync" class="impl"><code class="in-band">impl<'a> !<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.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Sync" class="anchor"></a></h3><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<'a> <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.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-Unpin" class="anchor"></a></h3><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<'a> !<a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3></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" open><summary><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.type_id" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a href="#method.type_id" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a href="#method.borrow" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a href="#method.borrow_mut" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a href="#method.from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a href="#method.into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-ToString" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html" title="trait alloc::string::ToString">ToString</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-ToString" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2268-2281" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.to_string" class="method hidden trait-impl"><code>pub default fn <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string" class="fnname">to_string</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a></code><a href="#method.to_string" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/string.rs.html#2274" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Converts the given value to a <code>String</code>. <a href="https://doc.rust-lang.org/nightly/alloc/string/trait.ToString.html#tymethod.to_string">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code><a href="#associatedtype.Error" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code><a href="#associatedtype.Error-1" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">StepCursor</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#334-347" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct StepCursor<'c, 'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Cursor state associated with speculative parsing.</p>
|
||||
<p>This type is the input of the closure provided to <a href="../../syn/parse/struct.ParseBuffer.html#method.step"><code>ParseStream::step</code></a>.</p>
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Struct StepCursor</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.error">error</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Copy">Copy</a><a href="#impl-Deref">Deref</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-RefUnwindSafe">RefUnwindSafe</a><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a><a href="#impl-Unpin">Unpin</a><a href="#impl-UnwindSafe">UnwindSafe</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="StepCursor" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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||||
<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="struct" href="">StepCursor</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#334-347" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust struct">pub struct StepCursor<'c, 'a> { /* fields omitted */ }</pre></div><div class="docblock"><p>Cursor state associated with speculative parsing.</p>
|
||||
<p>This type is the input of the closure provided to <a href="struct.ParseBuffer.html#method.step"><code>ParseStream::step</code></a>.</p>
|
||||
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
|
||||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||||
<span class="kw">use</span> <span class="ident">proc_macro2</span>::<span class="ident">TokenTree</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="prelude-ty">Result</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn</span>::<span class="ident">parse</span>::<span class="ident">ParseStream</span>;
|
||||
<span class="kw">use</span> <span class="ident">proc_macro2::TokenTree</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::Result</span>;
|
||||
<span class="kw">use</span> <span class="ident">syn::parse::ParseStream</span>;
|
||||
|
||||
<span class="comment">// This function advances the stream past the next occurrence of `@`. If</span>
|
||||
<span class="comment">// no `@` is present in the stream, the stream position is unchanged and</span>
|
||||
@@ -17,7 +17,7 @@
|
||||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rest</span> <span class="op">=</span> <span class="kw-2">*</span><span class="ident">cursor</span>;
|
||||
<span class="kw">while</span> <span class="kw">let</span> <span class="prelude-val">Some</span>((<span class="ident">tt</span>, <span class="ident">next</span>)) <span class="op">=</span> <span class="ident">rest</span>.<span class="ident">token_tree</span>() {
|
||||
<span class="kw">match</span> <span class="kw-2">&</span><span class="ident">tt</span> {
|
||||
<span class="ident">TokenTree</span>::<span class="ident">Punct</span>(<span class="ident">punct</span>) <span class="kw">if</span> <span class="ident">punct</span>.<span class="ident">as_char</span>() <span class="op">=</span><span class="op">=</span> <span class="string">'@'</span> <span class="op">=</span><span class="op">></span> {
|
||||
<span class="ident">TokenTree::Punct</span>(<span class="ident">punct</span>) <span class="kw">if</span> <span class="ident">punct</span>.<span class="ident">as_char</span>() <span class="op">=</span><span class="op">=</span> <span class="string">'@'</span> <span class="op">=</span><span class="op">></span> {
|
||||
<span class="kw">return</span> <span class="prelude-val">Ok</span>(((), <span class="ident">next</span>));
|
||||
}
|
||||
<span class="kw">_</span> <span class="op">=</span><span class="op">></span> <span class="ident">rest</span> <span class="op">=</span> <span class="ident">next</span>,
|
||||
@@ -26,25 +26,25 @@
|
||||
<span class="prelude-val">Err</span>(<span class="ident">cursor</span>.<span class="ident">error</span>(<span class="string">"no `@` was found after this point"</span>))
|
||||
})
|
||||
}</pre></div>
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl<'c, 'a> <a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#365-373" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.error" class="method"><code>pub fn <a href="#method.error" class="fnname">error</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(self, message: T) -> <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a></code><a class="srclink" href="../../src/syn/parse.rs.html#370-372" title="goto source code">[src]</a></h4><div class="docblock"><p>Triggers an error at the current position of the parse stream.</p>
|
||||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl" class="impl"><code class="in-band">impl<'c, 'a> <a class="struct" href="struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#365-373" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.error" class="method"><code>pub fn <a href="#method.error" class="fnname">error</a><T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a>>(self, message: T) -> <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a></code><a href="#method.error" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#370-372" title="goto source code">[src]</a></h4><div class="docblock"><p>Triggers an error at the current position of the parse stream.</p>
|
||||
<p>The <code>ParseStream::step</code> invocation will return this same error without
|
||||
advancing the stream state.</p>
|
||||
</div></div><h2 id="deref-methods" class="small-section-header">Methods from <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a><Target = <a class="struct" href="../../syn/buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'c>><a href="#deref-methods" class="anchor"></a></h2><div class="impl-items"></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-Clone" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Clone" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#359-363" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.clone" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> Self</code><a class="srclink" href="../../src/syn/parse.rs.html#360-362" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||||
</div><h4 id="method.clone_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><span 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#130" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||||
</div></div><h3 id="impl-Copy" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Copy" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#357" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Deref" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a> for <a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Deref" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#349-355" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Target" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" class="type">Target</a> = <a class="struct" href="../../syn/buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'c></code></h4><div class='docblock'><p>The resulting type after dereferencing.</p>
|
||||
</div><h4 id="method.deref" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#tymethod.deref" class="fnname">deref</a>(&self) -> &Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a></code><a class="srclink" href="../../src/syn/parse.rs.html#352-354" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Dereferences the value.</p>
|
||||
</div></div></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Send" class="impl"><code class="in-band">impl<'c, 'a> !<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="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Send" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl<'c, 'a> !<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="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Sync" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<'c, 'a> <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="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Unpin" class="anchor"></a></h3><div class="impl-items"></div><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="../../syn/parse/struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-ToOwned" class="impl"><code class="in-band">impl<T> <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> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href="#impl-ToOwned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-93" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Owned" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="type">Owned</a> = T</code></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
|
||||
</div><h4 id="method.to_owned" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#86" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div><h4 id="method.clone_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#90" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><details><summary><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
|
||||
</div></div></details><h2 id="deref-methods" class="small-section-header">Methods from <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a><Target = <a class="struct" href="../buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'c>><a href="#deref-methods" class="anchor"></a></h2><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><h3 id="impl-Clone" class="impl"><code class="in-band">impl<'c, 'a> <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.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Clone" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#359-363" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.clone" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> Self</code><a href="#method.clone" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#360-362" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||||
</div><h4 id="method.clone_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.clone_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/clone.rs.html#130" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Deref" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html" title="trait core::ops::deref::Deref">Deref</a> for <a class="struct" href="struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Deref" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#349-355" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Target" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" class="type">Target</a> = <a class="struct" href="../buffer/struct.Cursor.html" title="struct syn::buffer::Cursor">Cursor</a><'c></code><a href="#associatedtype.Target" class="anchor"></a></h4><div class='docblock'><p>The resulting type after dereferencing.</p>
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||||
</div><h4 id="method.deref" class="method hidden trait-impl"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#tymethod.deref" class="fnname">deref</a>(&self) -> &Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/ops/deref/trait.Deref.html#associatedtype.Target" title="type core::ops::deref::Deref::Target">Target</a></code><a href="#method.deref" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#352-354" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Dereferences the value.</p>
|
||||
</div></div></details><h3 id="impl-Copy" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Copy" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#357" title="goto source code">[src]</a></h3></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"><h3 id="impl-RefUnwindSafe" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.RefUnwindSafe.html" title="trait std::panic::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-RefUnwindSafe" class="anchor"></a></h3><h3 id="impl-Send" class="impl"><code class="in-band">impl<'c, 'a> !<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.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Send" class="anchor"></a></h3><h3 id="impl-Sync" class="impl"><code class="in-band">impl<'c, 'a> !<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.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Sync" class="anchor"></a></h3><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<'c, 'a> <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.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-Unpin" class="anchor"></a></h3><h3 id="impl-UnwindSafe" class="impl"><code class="in-band">impl<'c, 'a> <a class="trait" href="https://doc.rust-lang.org/nightly/std/panic/trait.UnwindSafe.html" title="trait std::panic::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.StepCursor.html" title="struct syn::parse::StepCursor">StepCursor</a><'c, 'a></code><a href="#impl-UnwindSafe" class="anchor"></a></h3></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" open><summary><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <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> 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></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.type_id" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a href="#method.type_id" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208-213" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a href="#method.borrow" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#210" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#216-220" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a href="#method.borrow_mut" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#217" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#544-548" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a href="#method.from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#533-540" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="method.into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a href="#method.into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#537" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-ToOwned" class="impl"><code class="in-band">impl<T> <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> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href="#impl-ToOwned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-93" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Owned" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="type">Owned</a> = T</code><a href="#associatedtype.Owned" class="anchor"></a></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
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</div><h4 id="method.to_owned" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</code><a href="#method.to_owned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#86" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>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></p>
|
||||
</div><h4 id="method.clone_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a href="#method.clone_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#90" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><details><summary><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
|
||||
</details></div></div><div class='docblock hidden'><p>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></p>
|
||||
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
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|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#581-590" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code><a href="#associatedtype.Error" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_from" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_from" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#587" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#567-576" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Error-1" class="type trait-impl"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code><a href="#associatedtype.Error-1" class="anchor"></a></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||||
</div><h4 id="method.try_into" class="method hidden trait-impl"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a href="#method.try_into" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#573" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||||
</div></div></details></div></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
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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="Parser that can parse Rust tokens into a particular syntax tree node."><meta name="keywords" content="rust, rustlang, rust-lang, Parser"><title>Parser in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Trait Parser</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Output">Output</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.parse2">parse2</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.parse">parse</a><a href="#method.parse_str">parse_str</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Parser" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="trait" href="">Parser</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#1140-1191" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust trait">pub trait Parser: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
|
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Trait Parser</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Output">Output</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.parse2">parse2</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.parse">parse</a><a href="#method.parse_str">parse_str</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Parser" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="trait" href="">Parser</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#1140-1191" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust trait">pub trait Parser: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
|
||||
type <a href="#associatedtype.Output" class="type">Output</a>;
|
||||
fn <a href="#tymethod.parse2" class="fnname">parse2</a>(self, tokens: <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="../../syn/parse/trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>>;
|
||||
fn <a href="#tymethod.parse2" class="fnname">parse2</a>(self, tokens: <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>>;
|
||||
|
||||
fn <a href="#method.parse" class="fnname">parse</a>(self, tokens: <a class="struct" href="https://doc.rust-lang.org/nightly/proc_macro/struct.TokenStream.html" title="struct proc_macro::TokenStream">TokenStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="../../syn/parse/trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>> { ... }
|
||||
<div class="item-spacer"></div> fn <a href="#method.parse_str" class="fnname">parse_str</a>(self, s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="../../syn/parse/trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>> { ... }
|
||||
fn <a href="#method.parse" class="fnname">parse</a>(self, tokens: <a class="struct" href="https://doc.rust-lang.org/nightly/proc_macro/struct.TokenStream.html" title="struct proc_macro::TokenStream">TokenStream</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>> { ... }
|
||||
<div class="item-spacer"></div> fn <a href="#method.parse_str" class="fnname">parse_str</a>(self, s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>> { ... }
|
||||
}</pre></div><div class="docblock"><p>Parser that can parse Rust tokens into a particular syntax tree node.</p>
|
||||
<p>Refer to the <a href="../../syn/parse/index.html">module documentation</a> for details about parsing in Syn.</p>
|
||||
<p>Refer to the <a href="index.html">module documentation</a> for details about parsing in Syn.</p>
|
||||
<p><em>This trait is available only if Syn is built with the <code>"parsing"</code> feature.</em></p>
|
||||
</div><h2 id="associated-types" class="small-section-header">Associated Types<a href="#associated-types" class="anchor"></a></h2><div class="methods"><h3 id="associatedtype.Output" class="method"><code>type <a href="#associatedtype.Output" class="type">Output</a></code><a class="srclink" href="../../src/syn/parse.rs.html#1141" title="goto source code">[src]</a></h3></div><span class="loading-content">Loading content...</span><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><h3 id="tymethod.parse2" class="method"><code>fn <a href="#tymethod.parse2" class="fnname">parse2</a>(self, tokens: <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="../../syn/parse/trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>></code><a class="srclink" href="../../src/syn/parse.rs.html#1147" title="goto source code">[src]</a></h3><div class="docblock"><p>Parse a proc-macro2 token stream into the chosen syntax tree node.</p>
|
||||
</div><h2 id="associated-types" class="small-section-header">Associated Types<a href="#associated-types" class="anchor"></a></h2><div class="methods"><h3 id="associatedtype.Output" class="method"><code>type <a href="#associatedtype.Output" class="type">Output</a></code><a class="srclink" href="../../src/syn/parse.rs.html#1141" title="goto source code">[src]</a></h3></div><span class="loading-content">Loading content...</span><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><h3 id="tymethod.parse2" class="method"><code>fn <a href="#tymethod.parse2" class="fnname">parse2</a>(self, tokens: <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>></code><a class="srclink" href="../../src/syn/parse.rs.html#1147" title="goto source code">[src]</a></h3><div class="docblock"><p>Parse a proc-macro2 token stream into the chosen syntax tree node.</p>
|
||||
<p>This function will check that the input is fully parsed. If there are
|
||||
any unparsed tokens at the end of the stream, an error is returned.</p>
|
||||
</div></div><span class="loading-content">Loading content...</span><h2 id="provided-methods" class="small-section-header">Provided methods<a href="#provided-methods" class="anchor"></a></h2><div class="methods"><h3 id="method.parse" class="method"><code>fn <a href="#method.parse" class="fnname">parse</a>(self, tokens: <a class="struct" href="https://doc.rust-lang.org/nightly/proc_macro/struct.TokenStream.html" title="struct proc_macro::TokenStream">TokenStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="../../syn/parse/trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>></code><a class="srclink" href="../../src/syn/parse.rs.html#1160-1162" title="goto source code">[src]</a></h3><div class="docblock"><p>Parse tokens of source code into the chosen syntax tree node.</p>
|
||||
</div></div><span class="loading-content">Loading content...</span><h2 id="provided-methods" class="small-section-header">Provided methods<a href="#provided-methods" class="anchor"></a></h2><div class="methods"><h3 id="method.parse" class="method"><code>fn <a href="#method.parse" class="fnname">parse</a>(self, tokens: <a class="struct" href="https://doc.rust-lang.org/nightly/proc_macro/struct.TokenStream.html" title="struct proc_macro::TokenStream">TokenStream</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>></code><a class="srclink" href="../../src/syn/parse.rs.html#1160-1162" title="goto source code">[src]</a></h3><div class="docblock"><p>Parse tokens of source code into the chosen syntax tree node.</p>
|
||||
<p>This function will check that the input is fully parsed. If there are
|
||||
any unparsed tokens at the end of the stream, an error is returned.</p>
|
||||
<p><em>This method is available only if Syn is built with both the <code>"parsing"</code> and
|
||||
<code>"proc-macro"</code> features.</em></p>
|
||||
</div><h3 id="method.parse_str" class="method"><code>fn <a href="#method.parse_str" class="fnname">parse_str</a>(self, s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="../../syn/parse/trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>></code><a class="srclink" href="../../src/syn/parse.rs.html#1173-1175" title="goto source code">[src]</a></h3><div class="docblock"><p>Parse a string of Rust code into the chosen syntax tree node.</p>
|
||||
</div><h3 id="method.parse_str" class="method"><code>fn <a href="#method.parse_str" class="fnname">parse_str</a>(self, s: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><Self::<a class="type" href="trait.Parser.html#associatedtype.Output" title="type syn::parse::Parser::Output">Output</a>></code><a class="srclink" href="../../src/syn/parse.rs.html#1173-1175" title="goto source code">[src]</a></h3><div class="docblock"><p>Parse a string of Rust code into the chosen syntax tree node.</p>
|
||||
<p>This function will check that the input is fully parsed. If there are
|
||||
any unparsed tokens at the end of the string, an error is returned.</p>
|
||||
<h1 id="hygiene" class="section-header"><a href="#hygiene">Hygiene</a></h1>
|
||||
<p>Every span in the resulting syntax tree will be set to resolve at the
|
||||
macro call site.</p>
|
||||
</div></div><span class="loading-content">Loading content...</span><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><h3 id="impl-Parser" class="impl"><code class="in-band">impl<F, T> <a class="trait" href="../../syn/parse/trait.Parser.html" title="trait syn::parse::Parser">Parser</a> for F <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(<a class="type" href="../../syn/parse/type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><T>, </span></code><a href="#impl-Parser" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1200-1239" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Output-1" class="type"><code>type <a href="#associatedtype.Output-1" class="type">Output</a> = T</code></h4><h4 id="method.parse2" class="method hidden"><code>fn <a href="#method.parse2" class="fnname">parse2</a>(self, tokens: <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>) -> <a class="type" href="../../syn/parse/type.Result.html" title="type syn::parse::Result">Result</a><T></code><a class="srclink" href="../../src/syn/parse.rs.html#1206-1216" title="goto source code">[src]</a></h4></div></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../implementors/syn/parse/trait.Parser.js" async></script></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
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</div></div><span class="loading-content">Loading content...</span><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Parser" class="impl"><code class="in-band">impl<F, T> <a class="trait" href="trait.Parser.html" title="trait syn::parse::Parser">Parser</a> for F <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(<a class="type" href="type.ParseStream.html" title="type syn::parse::ParseStream">ParseStream</a><'_>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><T>, </span></code><a href="#impl-Parser" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1200-1239" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Output-1" class="type trait-impl"><code>type <a href="#associatedtype.Output" class="type">Output</a> = T</code><a href="#associatedtype.Output-1" class="anchor"></a></h4><h4 id="method.parse2" class="method hidden trait-impl"><code>fn <a href="#tymethod.parse2" class="fnname">parse2</a>(self, tokens: <a class="struct" href="../../proc_macro2/struct.TokenStream.html" title="struct proc_macro2::TokenStream">TokenStream</a>) -> <a class="type" href="type.Result.html" title="type syn::parse::Result">Result</a><T></code><a href="#method.parse2" class="anchor"></a><a class="srclink" href="../../src/syn/parse.rs.html#1206-1216" title="goto source code">[src]</a></h4></div></details></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../implementors/syn/parse/trait.Parser.js" async></script></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
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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="Types that can be parsed by looking at just one token."><meta name="keywords" content="rust, rustlang, rust-lang, Peek"><title>syn::parse::Peek - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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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="Types that can be parsed by looking at just one token."><meta name="keywords" content="rust, rustlang, rust-lang, Peek"><title>Peek in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Trait Peek</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementors">Implementors</a></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Peek" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="trait" href="">Peek</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/lookahead.rs.html#144-148" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust trait">pub trait Peek: Sealed { }</pre></div><div class="docblock"><p>Types that can be parsed by looking at just one token.</p>
|
||||
<p>Use <a href="../../syn/parse/struct.ParseBuffer.html#method.peek"><code>ParseStream::peek</code></a> to peek one of these types in a parse stream
|
||||
<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Trait Peek</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementors">Implementors</a></div><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Peek" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="trait" href="">Peek</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/lookahead.rs.html#144-148" title="goto source code">[src]</a></span></h1><div class="docblock type-decl"><pre class="rust trait">pub trait Peek: Sealed { }</pre></div><div class="docblock"><p>Types that can be parsed by looking at just one token.</p>
|
||||
<p>Use <a href="struct.ParseBuffer.html#method.peek"><code>ParseStream::peek</code></a> to peek one of these types in a parse stream
|
||||
without consuming it from the stream.</p>
|
||||
<p>This trait is sealed and cannot be implemented for types outside of Syn.</p>
|
||||
</div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><h3 id="impl-Peek" class="impl"><code class="in-band">impl<F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(TokenMarker) -> T, T: <a class="trait" href="../../syn/token/trait.Token.html" title="trait syn::token::Token">Token</a>> <a class="trait" href="../../syn/parse/trait.Peek.html" title="trait syn::parse::Peek">Peek</a> for F</code><a href="#impl-Peek" class="anchor"></a><a class="srclink" href="../../src/syn/lookahead.rs.html#150-152" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Token" class="type"><code>type <a href="#associatedtype.Token" class="type">Token</a> = T</code></h4></div></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../implementors/syn/parse/trait.Peek.js" async></script></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
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</div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"><details class="rustdoc-toggle implementors-toggle" open><summary><h3 id="impl-Peek" class="impl"><code class="in-band">impl<F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(TokenMarker) -> T, T: <a class="trait" href="../token/trait.Token.html" title="trait syn::token::Token">Token</a>> <a class="trait" href="trait.Peek.html" title="trait syn::parse::Peek">Peek</a> for F</code><a href="#impl-Peek" class="anchor"></a><a class="srclink" href="../../src/syn/lookahead.rs.html#150-152" title="goto source code">[src]</a></h3></summary><div class="impl-items"><h4 id="associatedtype.Token" class="type trait-impl"><code>type <a href="#associatedtype.Token" class="type">Token</a> = T</code><a href="#associatedtype.Token" class="anchor"></a></h4></div></details></div><span class="loading-content">Loading content...</span><script type="text/javascript" src="../../implementors/syn/parse/trait.Peek.js" async></script></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
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<script src="../../main.js"></script></body></html>
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@@ -1,8 +1,8 @@
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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="Input to a Syn parser function."><meta name="keywords" content="rust, rustlang, rust-lang, ParseStream"><title>syn::parse::ParseStream - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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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="Input to a Syn parser function."><meta name="keywords" content="rust, rustlang, rust-lang, ParseStream"><title>ParseStream in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc type"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Type Definition ParseStream</p><div class="sidebar-elems"><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="ParseStream" data-ty="type" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Type Definition <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="type" href="">ParseStream</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#228" title="goto source code">[src]</a></span></h1><pre class="rust typedef">type ParseStream<'a> = &'a <a class="struct" href="../../syn/parse/struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a>;</pre><div class="docblock"><p>Input to a Syn parser function.</p>
|
||||
<p>See the methods of this type under the documentation of <a href="../../syn/parse/struct.ParseBuffer.html" title="ParseBuffer"><code>ParseBuffer</code></a>. For
|
||||
an overview of parsing in Syn, refer to the <a href="../../syn/parse/index.html">module documentation</a>.</p>
|
||||
</div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc type"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Type Definition ParseStream</p><div class="sidebar-elems"><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="ParseStream" data-ty="type" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Type Definition <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="type" href="">ParseStream</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/parse.rs.html#228" title="goto source code">[src]</a></span></h1><pre class="rust typedef">type ParseStream<'a> = &'a <a class="struct" href="struct.ParseBuffer.html" title="struct syn::parse::ParseBuffer">ParseBuffer</a><'a>;</pre><div class="docblock"><p>Input to a Syn parser function.</p>
|
||||
<p>See the methods of this type under the documentation of <a href="struct.ParseBuffer.html" title="ParseBuffer"><code>ParseBuffer</code></a>. For
|
||||
an overview of parsing in Syn, refer to the <a href="index.html">module documentation</a>.</p>
|
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</div></section><section id="search" class="content hidden"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-index-js="../../search-index.js" data-search-js="../../search.js"></div>
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<script src="../../main.js"></script></body></html>
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@@ -1,6 +1,6 @@
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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="The result of a Syn parser."><meta name="keywords" content="rust, rustlang, rust-lang, Result"><title>syn::parse::Result - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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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="The result of a Syn parser."><meta name="keywords" content="rust, rustlang, rust-lang, Result"><title>Result in syn::parse - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled ><script id="default-settings"></script><script src="../../storage.js"></script><script src="../../crates.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../favicon-16x16.png">
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc type"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Type Definition Result</p><div class="sidebar-elems"><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Result" data-ty="type" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Type Definition <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="type" href="">Result</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/error.rs.html#15" title="goto source code">[src]</a></span></h1><pre class="rust typedef">type Result<T> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <a class="struct" href="../../syn/parse/struct.Error.html" title="struct syn::parse::Error">Error</a>>;</pre><div class="docblock"><p>The result of a Syn parser.</p>
|
||||
</div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../../" data-current-crate="syn" data-search-js="../../search-index.js"></div>
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<link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc type"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu" role="button">☰</div><a href='../../syn/index.html'><div class='logo-container rust-logo'><img src='../../rust-logo.png' alt='logo'></div></a><p class="location">Type Definition Result</p><div class="sidebar-elems"><p class="location"><a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a></p><div id="sidebar-vars" data-name="Result" data-ty="type" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../brush.svg" width="18" height="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" height="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Type Definition <a href="../index.html">syn</a>::<wbr><a href="index.html">parse</a>::<wbr><a class="type" href="">Result</a><button id="copy-path" onclick="copy_path(this)">⎘</button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/syn/error.rs.html#15" title="goto source code">[src]</a></span></h1><pre class="rust typedef">type Result<T> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <a class="struct" href="struct.Error.html" title="struct syn::parse::Error">Error</a>>;</pre><div class="docblock"><p>The result of a Syn parser.</p>
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