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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="Returned from `Serializer::serialize_tuple_struct`."><title>SerializeTupleStruct in serde::ser - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-ca0dd0c4.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="serde" data-themes="" data-resource-suffix="" data-rustdoc-version="1.93.1 (01f6ddf75 2026-02-11) (Arch Linux rust 1:1.93.1-1)" data-channel="1.93.1" data-search-js="search-9e2438ea.js" data-stringdex-js="stringdex-a3946164.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-a410ff4d.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></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]--><rustdoc-topbar><h2><a href="#">SerializeTupleStruct</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../serde/index.html">serde</a><span class="version">1.0.228</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Serialize<wbr>Tuple<wbr>Struct</a></h2><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#example-use" title="Example use">Example use</a></li><li><a href="#example-implementation" title="Example implementation">Example implementation</a></li></ul><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.Error" title="Error">Error</a></li><li><a href="#associatedtype.Ok" title="Ok">Ok</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.end" title="end">end</a></li><li><a href="#tymethod.serialize_field" title="serialize_field">serialize_field</a></li></ul><h3><a href="#dyn-compatibility">Dyn Compatibility</a></h3><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In serde::<wbr>ser</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">serde</a>::<wbr><a href="index.html">ser</a></div><h1>Trait <span class="trait">Serialize<wbr>Tuple<wbr>Struct</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/serde_core/ser/mod.rs.html#1675">Source</a> </span></div><pre class="rust item-decl"><code>pub trait SerializeTupleStruct {
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type <a href="#associatedtype.Ok" class="associatedtype">Ok</a>;
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type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="trait.Error.html" title="trait serde::ser::Error">Error</a>;
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// Required methods
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fn <a href="#tymethod.serialize_field" class="fn">serialize_field</a><T>(&mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&T</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.unit.html">()</a>, Self::<a class="associatedtype" href="trait.SerializeTupleStruct.html#associatedtype.Error" title="type serde::ser::SerializeTupleStruct::Error">Error</a>>
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<span class="where">where T: <a class="trait" href="../trait.Serialize.html" title="trait serde::Serialize">Serialize</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a></span>;
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<span class="item-spacer"></span> fn <a href="#tymethod.end" class="fn">end</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self::<a class="associatedtype" href="trait.SerializeTupleStruct.html#associatedtype.Ok" title="type serde::ser::SerializeTupleStruct::Ok">Ok</a>, Self::<a class="associatedtype" href="trait.SerializeTupleStruct.html#associatedtype.Error" title="type serde::ser::SerializeTupleStruct::Error">Error</a>>;
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Returned from <code>Serializer::serialize_tuple_struct</code>.</p>
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<h2 id="example-use"><a class="doc-anchor" href="#example-use">§</a>Example use</h2>
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<div class="example-wrap edition"><a href="#" class="tooltip" title="This example runs with edition 2021">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>serde::ser::{Serialize, SerializeTupleStruct, Serializer};
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<span class="kw">struct </span>Rgb(u8, u8, u8);
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<span class="kw">impl </span>Serialize <span class="kw">for </span>Rgb {
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<span class="kw">fn </span>serialize<S>(<span class="kw-2">&</span><span class="self">self</span>, serializer: S) -> <span class="prelude-ty">Result</span><S::Ok, S::Error>
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<span class="kw">where
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</span>S: Serializer,
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{
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<span class="kw">let </span><span class="kw-2">mut </span>ts = serializer.serialize_tuple_struct(<span class="string">"Rgb"</span>, <span class="number">3</span>)<span class="question-mark">?</span>;
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ts.serialize_field(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">0</span>)<span class="question-mark">?</span>;
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ts.serialize_field(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">1</span>)<span class="question-mark">?</span>;
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ts.serialize_field(<span class="kw-2">&</span><span class="self">self</span>.<span class="number">2</span>)<span class="question-mark">?</span>;
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ts.end()
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}
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}</code></pre></div><h2 id="example-implementation"><a class="doc-anchor" href="#example-implementation">§</a>Example implementation</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>SerializeTupleStruct</code> for a basic JSON data format.</p>
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</div></details><h2 id="required-associated-types" class="section-header">Required Associated Types<a href="#required-associated-types" class="anchor">§</a></h2><div class="methods"><details class="toggle" open><summary><section id="associatedtype.Ok" class="method"><a class="src rightside" href="../../src/serde_core/ser/mod.rs.html#1677">Source</a><h4 class="code-header">type <a href="#associatedtype.Ok" class="associatedtype">Ok</a></h4></section></summary><div class="docblock"><p>Must match the <code>Ok</code> type of our <code>Serializer</code>.</p>
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</div></details><details class="toggle" open><summary><section id="associatedtype.Error" class="method"><a class="src rightside" href="../../src/serde_core/ser/mod.rs.html#1680">Source</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="trait.Error.html" title="trait serde::ser::Error">Error</a></h4></section></summary><div class="docblock"><p>Must match the <code>Error</code> type of our <code>Serializer</code>.</p>
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</div></details></div><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.serialize_field" class="method"><a class="src rightside" href="../../src/serde_core/ser/mod.rs.html#1683-1685">Source</a><h4 class="code-header">fn <a href="#tymethod.serialize_field" class="fn">serialize_field</a><T>(&mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.reference.html">&T</a>) -> <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.93.1/std/primitive.unit.html">()</a>, Self::<a class="associatedtype" href="trait.SerializeTupleStruct.html#associatedtype.Error" title="type serde::ser::SerializeTupleStruct::Error">Error</a>><div class="where">where
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T: <a class="trait" href="../trait.Serialize.html" title="trait serde::Serialize">Serialize</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.93.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Serialize a tuple struct field.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.end" class="method"><a class="src rightside" href="../../src/serde_core/ser/mod.rs.html#1688">Source</a><h4 class="code-header">fn <a href="#tymethod.end" class="fn">end</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.93.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self::<a class="associatedtype" href="trait.SerializeTupleStruct.html#associatedtype.Ok" title="type serde::ser::SerializeTupleStruct::Ok">Ok</a>, Self::<a class="associatedtype" href="trait.SerializeTupleStruct.html#associatedtype.Error" title="type serde::ser::SerializeTupleStruct::Error">Error</a>></h4></section></summary><div class="docblock"><p>Finish serializing a tuple struct.</p>
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</div></details></div><h2 id="dyn-compatibility" class="section-header">Dyn Compatibility<a href="#dyn-compatibility" class="anchor">§</a></h2><div class="dyn-compatibility-info"><p>This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.93.1/reference/items/traits.html#dyn-compatibility">dyn compatible</a>.</p><p><i>In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.</i></p></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><details class="toggle implementors-toggle"><summary><section id="impl-SerializeTupleStruct-for-Impossible%3COk,+Error%3E" class="impl"><a class="src rightside" href="../../src/serde_core/ser/impossible.rs.html#108-110">Source</a><a href="#impl-SerializeTupleStruct-for-Impossible%3COk,+Error%3E" class="anchor">§</a><h3 class="code-header">impl<Ok, Error> <a class="trait" href="trait.SerializeTupleStruct.html" title="trait serde::ser::SerializeTupleStruct">SerializeTupleStruct</a> for <a class="struct" href="struct.Impossible.html" title="struct serde::ser::Impossible">Impossible</a><Ok, Error><div class="where">where
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Error: <a class="trait" href="trait.Error.html" title="trait serde::ser::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Ok-1" class="associatedtype trait-impl"><a class="src rightside" href="../../src/serde_core/ser/impossible.rs.html#112">Source</a><a href="#associatedtype.Ok-1" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Ok" class="associatedtype">Ok</a> = Ok</h4></section><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a class="src rightside" href="../../src/serde_core/ser/impossible.rs.html#113">Source</a><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = Error</h4></section></div></details></div><script src="../../trait.impl/serde_core/ser/trait.SerializeTupleStruct.js" data-ignore-extern-crates="serde_core" async></script></section></div></main></body></html> |