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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="API documentation for the Rust `ParseError` type in crate `lalrpop_util`."><title>ParseError in lalrpop_util::state_machine - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-5bc39a1768837dd0.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="lalrpop_util" data-themes="" data-resource-suffix="" data-rustdoc-version="1.77.2 (25ef9e3d8 2024-04-09)" data-channel="1.77.2" data-search-js="search-dd67cee4cfa65049.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-4c98445ec4002617.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-48f368f3872407c8.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-04d5337699b92874.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc type"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../lalrpop_util/index.html">lalrpop_util</a><span class="version">0.20.2</span></h2></div><h2 class="location"><a href="#">ParseError</a></h2><div class="sidebar-elems"><section><h3><a href="#aliased-type">Aliased type</a></h3><h3><a href="#variants">Variants</a></h3><ul class="block variant"><li><a href="#variant.ExtraToken">ExtraToken</a></li><li><a href="#variant.InvalidToken">InvalidToken</a></li><li><a href="#variant.UnrecognizedEof">UnrecognizedEof</a></li><li><a href="#variant.UnrecognizedToken">UnrecognizedToken</a></li><li><a href="#variant.User">User</a></li></ul></section><h2><a href="index.html">In lalrpop_util::state_machine</a></h2></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../lalrpop_util/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Type Alias <a href="../index.html">lalrpop_util</a>::<wbr><a href="index.html">state_machine</a>::<wbr><a class="type" href="#">ParseError</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/lalrpop_util/state_machine.rs.html#186">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub type ParseError<D> = <a class="enum" href="../enum.ParseError.html" title="enum lalrpop_util::ParseError">ParseError</a><Location<D>, Token<D>, Error<D>>;</code></pre><h2 id="aliased-type" class="section-header">Aliased Type<a href="#aliased-type" class="anchor">§</a></h2><pre class="rust item-decl"><code>enum ParseError<D> {
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InvalidToken {
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location: <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>,
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},
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UnrecognizedEof {
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location: <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>,
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expected: <a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>>,
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},
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UnrecognizedToken {
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token: (<D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Token" title="type lalrpop_util::state_machine::ParserDefinition::Token">Token</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>),
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expected: <a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>>,
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},
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ExtraToken {
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token: (<D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Token" title="type lalrpop_util::state_machine::ParserDefinition::Token">Token</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>),
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},
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User {
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error: <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Error" title="type lalrpop_util::state_machine::ParserDefinition::Error">Error</a>,
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},
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}</code></pre><h2 id="variants" class="variants section-header">Variants<a href="#variants" class="anchor">§</a></h2><div class="variants"><section id="variant.InvalidToken" class="variant"><a href="#variant.InvalidToken" class="anchor">§</a><h3 class="code-header">InvalidToken</h3></section><div class="sub-variant" id="variant.InvalidToken.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.InvalidToken.field.location" class="section-header"><a href="#variant.InvalidToken.field.location" class="anchor field">§</a><code>location: <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a></code></span></div></div><div class="docblock"><p>Generated by the parser when it encounters a token (or EOF) it did not
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expect.</p>
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</div><section id="variant.UnrecognizedEof" class="variant"><a href="#variant.UnrecognizedEof" class="anchor">§</a><h3 class="code-header">UnrecognizedEof</h3></section><div class="sub-variant" id="variant.UnrecognizedEof.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.UnrecognizedEof.field.location" class="section-header"><a href="#variant.UnrecognizedEof.field.location" class="anchor field">§</a><code>location: <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a></code></span><div class="docblock"><p>The end of the final token</p>
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</div></div><div class="sub-variant-field"><span id="variant.UnrecognizedEof.field.expected" class="section-header"><a href="#variant.UnrecognizedEof.field.expected" class="anchor field">§</a><code>expected: <a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>></code></span><div class="docblock"><p>The set of expected tokens: these names are taken from the
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grammar and hence may not necessarily be suitable for
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presenting to the user.</p>
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</div></div></div><div class="docblock"><p>Generated by the parser when it encounters an EOF it did not expect.</p>
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</div><section id="variant.UnrecognizedToken" class="variant"><a href="#variant.UnrecognizedToken" class="anchor">§</a><h3 class="code-header">UnrecognizedToken</h3></section><div class="sub-variant" id="variant.UnrecognizedToken.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.UnrecognizedToken.field.token" class="section-header"><a href="#variant.UnrecognizedToken.field.token" class="anchor field">§</a><code>token: (<D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Token" title="type lalrpop_util::state_machine::ParserDefinition::Token">Token</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>)</code></span><div class="docblock"><p>The unexpected token of type <code>T</code> with a span given by the two <code>L</code> values.</p>
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</div></div><div class="sub-variant-field"><span id="variant.UnrecognizedToken.field.expected" class="section-header"><a href="#variant.UnrecognizedToken.field.expected" class="anchor field">§</a><code>expected: <a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/vec/struct.Vec.html" title="struct alloc::vec::Vec">Vec</a><<a class="struct" href="https://doc.rust-lang.org/1.77.2/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>></code></span><div class="docblock"><p>The set of expected tokens: these names are taken from the
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grammar and hence may not necessarily be suitable for
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presenting to the user.</p>
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</div></div></div><div class="docblock"><p>Generated by the parser when it encounters a token it did not expect.</p>
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</div><section id="variant.ExtraToken" class="variant"><a href="#variant.ExtraToken" class="anchor">§</a><h3 class="code-header">ExtraToken</h3></section><div class="sub-variant" id="variant.ExtraToken.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.ExtraToken.field.token" class="section-header"><a href="#variant.ExtraToken.field.token" class="anchor field">§</a><code>token: (<D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Token" title="type lalrpop_util::state_machine::ParserDefinition::Token">Token</a>, <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Location" title="type lalrpop_util::state_machine::ParserDefinition::Location">Location</a>)</code></span></div></div><div class="docblock"><p>Generated by the parser when it encounters additional, unexpected tokens.</p>
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</div><section id="variant.User" class="variant"><a href="#variant.User" class="anchor">§</a><h3 class="code-header">User</h3></section><div class="sub-variant" id="variant.User.fields"><h4>Fields</h4><div class="sub-variant-field"><span id="variant.User.field.error" class="section-header"><a href="#variant.User.field.error" class="anchor field">§</a><code>error: <D as <a class="trait" href="trait.ParserDefinition.html" title="trait lalrpop_util::state_machine::ParserDefinition">ParserDefinition</a>>::<a class="associatedtype" href="trait.ParserDefinition.html#associatedtype.Error" title="type lalrpop_util::state_machine::ParserDefinition::Error">Error</a></code></span></div></div><div class="docblock"><p>Custom error type.</p>
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