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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="Provides a `Visitor` access to each entry of a map in the input."><meta name="keywords" content="rust, rustlang, rust-lang, MapAccess"><title>MapAccess in serde::de - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link 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="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><script defer src="../../main.js"></script>
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</a><h2 class="location">Trait MapAccess</h2><div class="sidebar-elems"><div class="block items"><h3 class="sidebar-title"><a href="#associated-types">Associated Types</a></h3><div class="sidebar-links"><a href="#associatedtype.Error">Error</a></div><h3 class="sidebar-title"><a href="#required-methods">Required Methods</a></h3><div class="sidebar-links"><a href="#tymethod.next_key_seed">next_key_seed</a><a href="#tymethod.next_value_seed">next_value_seed</a></div><h3 class="sidebar-title"><a href="#provided-methods">Provided Methods</a></h3><div class="sidebar-links"><a href="#method.next_entry">next_entry</a><a href="#method.next_entry_seed">next_entry_seed</a><a href="#method.next_key">next_key</a><a href="#method.next_value">next_value</a><a href="#method.size_hint">size_hint</a></div><h3 class="sidebar-title"><a href="#foreign-impls">Implementations on Foreign Types</a></h3><div class="sidebar-links"><a href="#impl-MapAccess%3C%27de%3E-for-%26%27a%20mut%20A">&'a mut A</a></div><h3 class="sidebar-title"><a href="#implementors">Implementors</a></h3></div><h2 class="location">Other items in<br><a href="../index.html">serde</a>::<wbr><a href="index.html">de</a></h2><div id="sidebar-vars" data-name="MapAccess" data-ty="trait" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../serde/index.html"><img class="rust-logo" src="../../rust-logo.png" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><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" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><h1 class="fqn"><span class="in-band">Trait <a href="../index.html">serde</a>::<wbr><a href="index.html">de</a>::<wbr><a class="trait" href="#">MapAccess</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></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/serde/de/mod.rs.html#1785-1888" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust trait"><code>pub trait MapAccess<'de> {
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type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="trait.Error.html" title="trait serde::de::Error">Error</a>;
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fn <a href="#tymethod.next_key_seed" class="fnname">next_key_seed</a><K>(<br> &mut self, <br> seed: K<br> ) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><K::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>><br> <span class="where">where<br> K: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de></span>;
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<div class="item-spacer"></div> fn <a href="#tymethod.next_value_seed" class="fnname">next_value_seed</a><V>(&mut self, seed: V) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de></span>;
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fn <a href="#method.next_entry_seed" class="fnname">next_entry_seed</a><K, V>(<br> &mut self, <br> kseed: K, <br> vseed: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a>K::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>, V::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>><br> <span class="where">where<br> K: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>,<br> V: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de></span>,
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{ ... }
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<div class="item-spacer"></div> fn <a href="#method.next_key" class="fnname">next_key</a><K>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><K>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>><br> <span class="where">where<br> K: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de></span>,
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{ ... }
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<div class="item-spacer"></div> fn <a href="#method.next_value" class="fnname">next_value</a><V>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de></span>,
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{ ... }
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<div class="item-spacer"></div> fn <a href="#method.next_entry" class="fnname">next_entry</a><K, V>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a>K, V<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>><br> <span class="where">where<br> K: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>,<br> V: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de></span>,
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{ ... }
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<div class="item-spacer"></div> fn <a href="#method.size_hint" class="fnname">size_hint</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>> { ... }
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}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Provides a <code>Visitor</code> access to each entry of a map in the input.</p>
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<p>This is a trait that a <code>Deserializer</code> passes to a <code>Visitor</code> implementation.</p>
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<h2 id="lifetime" class="section-header"><a href="#lifetime">Lifetime</a></h2>
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<p>The <code>'de</code> lifetime of this trait is the lifetime of data that may be
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borrowed by deserialized map entries. See the page <a href="https://serde.rs/lifetimes.html">Understanding
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deserializer lifetimes</a> for a more detailed explanation of these lifetimes.</p>
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<h2 id="example-implementation" class="section-header"><a href="#example-implementation">Example implementation</a></h2>
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<p>The <a href="https://serde.rs/data-format.html">example data format</a> presented on the website demonstrates an
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implementation of <code>MapAccess</code> for a basic JSON data format.</p>
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</div></details><h2 id="associated-types" class="small-section-header">Associated Types<a href="#associated-types" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="associatedtype.Error" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1788" title="goto source code">[src]</a></div><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="trait.Error.html" title="trait serde::de::Error">Error</a></h4></div></summary><div class="docblock"><p>The error type that can be returned if some error occurs during
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deserialization.</p>
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</div></details></div><h2 id="required-methods" class="small-section-header">Required methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="tymethod.next_key_seed" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1795-1797" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#tymethod.next_key_seed" class="fnname">next_key_seed</a><K>(&mut self, seed: K) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><K::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>, </span></h4></div></summary><div class="docblock"><p>This returns <code>Ok(Some(key))</code> for the next key in the map, or <code>Ok(None)</code>
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if there are no more remaining entries.</p>
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<p><code>Deserialize</code> implementations should typically use
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<code>MapAccess::next_key</code> or <code>MapAccess::next_entry</code> instead.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="tymethod.next_value_seed" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1808-1810" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#tymethod.next_value_seed" class="fnname">next_value_seed</a><V>(&mut self, seed: V) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>, </span></h4></div></summary><div class="docblock"><p>This returns a <code>Ok(value)</code> for the next value in the map.</p>
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<p><code>Deserialize</code> implementations should typically use
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<code>MapAccess::next_value</code> instead.</p>
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<h5 id="panics" class="section-header"><a href="#panics">Panics</a></h5>
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<p>Calling <code>next_value_seed</code> before <code>next_key_seed</code> is incorrect and is
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allowed to panic or return bogus results.</p>
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</div></details></div><h2 id="provided-methods" class="small-section-header">Provided methods<a href="#provided-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="method.next_entry_seed" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1821-1837" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.next_entry_seed" class="fnname">next_entry_seed</a><K, V>(<br> &mut self, <br> kseed: K, <br> vseed: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a>K::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>, V::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>,<br> V: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>, </span></h4></div></summary><div class="docblock"><p>This returns <code>Ok(Some((key, value)))</code> for the next (key-value) pair in
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the map, or <code>Ok(None)</code> if there are no more remaining items.</p>
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<p><code>MapAccess</code> implementations should override the default behavior if a
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more efficient implementation is possible.</p>
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<p><code>Deserialize</code> implementations should typically use
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<code>MapAccess::next_entry</code> instead.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="method.next_key" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1845-1850" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.next_key" class="fnname">next_key</a><K>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><K>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>, </span></h4></div></summary><div class="docblock"><p>This returns <code>Ok(Some(key))</code> for the next key in the map, or <code>Ok(None)</code>
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if there are no more remaining entries.</p>
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<p>This method exists as a convenience for <code>Deserialize</code> implementations.
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<code>MapAccess</code> implementations should not override the default behavior.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="method.next_value" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1862-1867" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.next_value" class="fnname">next_value</a><V>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>, </span></h4></div></summary><div class="docblock"><p>This returns a <code>Ok(value)</code> for the next value in the map.</p>
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<p>This method exists as a convenience for <code>Deserialize</code> implementations.
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<code>MapAccess</code> implementations should not override the default behavior.</p>
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<h5 id="panics-1" class="section-header"><a href="#panics-1">Panics</a></h5>
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<p>Calling <code>next_value</code> before <code>next_key</code> is incorrect and is allowed to
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panic or return bogus results.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="method.next_entry" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1875-1881" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.next_entry" class="fnname">next_entry</a><K, V>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a>K, V<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>,<br> V: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>, </span></h4></div></summary><div class="docblock"><p>This returns <code>Ok(Some((key, value)))</code> for the next (key-value) pair in
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the map, or <code>Ok(None)</code> if there are no more remaining items.</p>
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<p>This method exists as a convenience for <code>Deserialize</code> implementations.
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<code>MapAccess</code> implementations should not override the default behavior.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="method.size_hint" class="method has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1885-1887" title="goto source code">[src]</a></div><h4 class="code-header">fn <a href="#method.size_hint" class="fnname">size_hint</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>></h4></div></summary><div class="docblock"><p>Returns the number of entries remaining in the map, if known.</p>
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</div></details></div><h2 id="foreign-impls" class="small-section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor"></a></h2><details class="rustdoc-toggle implementors-toggle"><summary><div id="impl-MapAccess%3C%27de%3E-for-%26%27a%20mut%20A" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1890-1954" title="goto source code">[src]</a></div><a href="#impl-MapAccess%3C%27de%3E-for-%26%27a%20mut%20A" class="anchor"></a><h3 class="code-header in-band">impl<'de, 'a, A: ?<a class="trait" href="https://doc.rust-lang.org/1.59.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>> <a class="trait" href="trait.MapAccess.html" title="trait serde::de::MapAccess">MapAccess</a><'de> for <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.reference.html">&'a mut </a>A <span class="where fmt-newline">where<br> A: <a class="trait" href="trait.MapAccess.html" title="trait serde::de::MapAccess">MapAccess</a><'de>, </span></h3></div></summary><div class="impl-items"><div id="associatedtype.Error-1" class="type trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = A::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a></h4></div><div id="method.next_key_seed" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1897-1902" title="goto source code">[src]</a></div><a href="#method.next_key_seed" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.next_key_seed" class="fnname">next_key_seed</a><K>(&mut self, seed: K) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><K::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>, </span></h4></div><div id="method.next_value_seed" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1905-1910" title="goto source code">[src]</a></div><a href="#method.next_value_seed" class="anchor"></a><h4 class="code-header">fn <a href="#tymethod.next_value_seed" class="fnname">next_value_seed</a><V>(&mut self, seed: V) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>, </span></h4></div><div id="method.next_entry_seed-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1913-1923" title="goto source code">[src]</a></div><a href="#method.next_entry_seed-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.next_entry_seed" class="fnname">next_entry_seed</a><K, V>(<br> &mut self, <br> kseed: K, <br> vseed: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a>K::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a>, V::<a class="associatedtype" href="trait.DeserializeSeed.html#associatedtype.Value" title="type serde::de::DeserializeSeed::Value">Value</a><a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>,<br> V: <a class="trait" href="trait.DeserializeSeed.html" title="trait serde::de::DeserializeSeed">DeserializeSeed</a><'de>, </span></h4></div><div id="method.next_entry-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1926-1932" title="goto source code">[src]</a></div><a href="#method.next_entry-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.next_entry" class="fnname">next_entry</a><K, V>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">(</a>K, V<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.tuple.html">)</a>>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>,<br> V: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>, </span></h4></div><div id="method.next_key-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1935-1940" title="goto source code">[src]</a></div><a href="#method.next_key-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.next_key" class="fnname">next_key</a><K>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><K>, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> K: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>, </span></h4></div><div id="method.next_value-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1943-1948" title="goto source code">[src]</a></div><a href="#method.next_value-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.next_value" class="fnname">next_value</a><V>(&mut self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V, Self::<a class="associatedtype" href="trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../trait.Deserialize.html" title="trait serde::Deserialize">Deserialize</a><'de>, </span></h4></div><div id="method.size_hint-1" class="method trait-impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/mod.rs.html#1951-1953" title="goto source code">[src]</a></div><a href="#method.size_hint-1" class="anchor"></a><h4 class="code-header">fn <a href="#method.size_hint" class="fnname">size_hint</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/1.59.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a><<a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a>></h4></div></div></details><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"><summary><div id="impl-MapAccess%3C%27de%3E" class="impl has-srclink"><div class="rightside"><a class="srclink" href="../../src/serde/de/value.rs.html#1150-1206" title="goto source code">[src]</a></div><a href="#impl-MapAccess%3C%27de%3E" class="anchor"></a><h3 class="code-header in-band">impl<'de, I, E> <a class="trait" href="trait.MapAccess.html" title="trait serde::de::MapAccess">MapAccess</a><'de> for <a class="struct" href="value/struct.MapDeserializer.html" title="struct serde::de::value::MapDeserializer">MapDeserializer</a><'de, I, E> <span class="where fmt-newline">where<br> I: <a class="trait" href="https://doc.rust-lang.org/1.59.0/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a>,<br> I::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a>: Pair,<br> <I::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a> as Pair>::First: <a class="trait" href="trait.IntoDeserializer.html" title="trait serde::de::IntoDeserializer">IntoDeserializer</a><'de, E>,<br> <I::<a class="associatedtype" href="https://doc.rust-lang.org/1.59.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a> as Pair>::Second: <a class="trait" href="trait.IntoDeserializer.html" title="trait serde::de::IntoDeserializer">IntoDeserializer</a><'de, E>,<br> E: <a class="trait" href="trait.Error.html" title="trait serde::de::Error">Error</a>, </span></h3></div></summary><div class="impl-items"><div id="associatedtype.Error-2" class="type trait-impl has-srclink"><a href="#associatedtype.Error-2" class="anchor"></a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></div></div></details></div><script type="text/javascript" src="../../implementors/serde/de/trait.MapAccess.js" async></script></section><section id="search" class="content hidden"></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="serde" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.59.0 (9d1b2106e 2022-02-23)" ></div>
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