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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A data format that can deserialize any data structure supported by Serde."><title>Deserializer in serde - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-46f98efaafac5295.ttf.woff2,FiraSans-Regular-018c141bf0843ffd.woff2,FiraSans-Medium-8f9a781e4970d388.woff2,SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2,SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-dd39b87e5fcfba68.css"><meta name="rustdoc-vars" data-root-path="../" 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sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../serde/index.html">serde</a><span class="version">1.0.204</span></h2></div><h2 class="location"><a href="#">Deserializer</a></h2><div class="sidebar-elems"><section><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.Error">Error</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.deserialize_any">deserialize_any</a></li><li><a href="#tymethod.deserialize_bool">deserialize_bool</a></li><li><a href="#tymethod.deserialize_byte_buf">deserialize_byte_buf</a></li><li><a href="#tymethod.deserialize_bytes">deserialize_bytes</a></li><li><a href="#tymethod.deserialize_char">deserialize_char</a></li><li><a href="#tymethod.deserialize_enum">deserialize_enum</a></li><li><a href="#tymethod.deserialize_f32">deserialize_f32</a></li><li><a href="#tymethod.deserialize_f64">deserialize_f64</a></li><li><a href="#tymethod.deserialize_i16">deserialize_i16</a></li><li><a href="#tymethod.deserialize_i32">deserialize_i32</a></li><li><a href="#tymethod.deserialize_i64">deserialize_i64</a></li><li><a href="#tymethod.deserialize_i8">deserialize_i8</a></li><li><a href="#tymethod.deserialize_identifier">deserialize_identifier</a></li><li><a href="#tymethod.deserialize_ignored_any">deserialize_ignored_any</a></li><li><a href="#tymethod.deserialize_map">deserialize_map</a></li><li><a href="#tymethod.deserialize_newtype_struct">deserialize_newtype_struct</a></li><li><a href="#tymethod.deserialize_option">deserialize_option</a></li><li><a href="#tymethod.deserialize_seq">deserialize_seq</a></li><li><a href="#tymethod.deserialize_str">deserialize_str</a></li><li><a href="#tymethod.deserialize_string">deserialize_string</a></li><li><a href="#tymethod.deserialize_struct">deserialize_struct</a></li><li><a href="#tymethod.deserialize_tuple">deserialize_tuple</a></li><li><a href="#tymethod.deserialize_tuple_struct">deserialize_tuple_struct</a></li><li><a href="#tymethod.deserialize_u16">deserialize_u16</a></li><li><a href="#tymethod.deserialize_u32">deserialize_u32</a></li><li><a href="#tymethod.deserialize_u64">deserialize_u64</a></li><li><a href="#tymethod.deserialize_u8">deserialize_u8</a></li><li><a href="#tymethod.deserialize_unit">deserialize_unit</a></li><li><a href="#tymethod.deserialize_unit_struct">deserialize_unit_struct</a></li></ul><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.deserialize_i128">deserialize_i128</a></li><li><a href="#method.deserialize_u128">deserialize_u128</a></li><li><a href="#method.is_human_readable">is_human_readable</a></li></ul><h3><a href="#object-safety">Object Safety</a></h3><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In crate serde</a></h2></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Trait <a href="index.html">serde</a>::<wbr><a class="trait" href="#">Deserializer</a><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><span class="out-of-band"><a class="src" href="../src/serde/de/mod.rs.html#915-1240">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub trait Deserializer&lt;'de&gt;: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>;
<details class="toggle type-contents-toggle"><summary class="hideme"><span>Show 32 methods</span></summary> // Required methods
fn <a href="#tymethod.deserialize_any" class="fn">deserialize_any</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_bool" class="fn">deserialize_bool</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_i8" class="fn">deserialize_i8</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_i16" class="fn">deserialize_i16</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_i32" class="fn">deserialize_i32</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_i64" class="fn">deserialize_i64</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_u8" class="fn">deserialize_u8</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_u16" class="fn">deserialize_u16</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_u32" class="fn">deserialize_u32</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_u64" class="fn">deserialize_u64</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_f32" class="fn">deserialize_f32</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_f64" class="fn">deserialize_f64</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_char" class="fn">deserialize_char</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_str" class="fn">deserialize_str</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_string" class="fn">deserialize_string</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_bytes" class="fn">deserialize_bytes</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_byte_buf" class="fn">deserialize_byte_buf</a>&lt;V&gt;(
self,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_option" class="fn">deserialize_option</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_unit" class="fn">deserialize_unit</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_unit_struct" class="fn">deserialize_unit_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_newtype_struct" class="fn">deserialize_newtype_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_seq" class="fn">deserialize_seq</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_tuple" class="fn">deserialize_tuple</a>&lt;V&gt;(
self,
len: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_tuple_struct" class="fn">deserialize_tuple_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
len: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_map" class="fn">deserialize_map</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_struct" class="fn">deserialize_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
fields: &amp;'static [&amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>],
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_enum" class="fn">deserialize_enum</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
variants: &amp;'static [&amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>],
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_identifier" class="fn">deserialize_identifier</a>&lt;V&gt;(
self,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
<span class="item-spacer"></span> fn <a href="#tymethod.deserialize_ignored_any" class="fn">deserialize_ignored_any</a>&lt;V&gt;(
self,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span>;
// Provided methods
fn <a href="#method.deserialize_i128" class="fn">deserialize_i128</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span> { ... }
<span class="item-spacer"></span> fn <a href="#method.deserialize_u128" class="fn">deserialize_u128</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;
<span class="where">where V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;</span> { ... }
<span class="item-spacer"></span> fn <a href="#method.is_human_readable" class="fn">is_human_readable</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a> { ... }
</details>}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A <strong>data format</strong> that can deserialize any data structure supported by
Serde.</p>
<p>The role of this trait is to define the deserialization half of the <a href="https://serde.rs/data-model.html">Serde
data model</a>, which is a way to categorize every Rust data type into one of
29 possible types. Each method of the <code>Deserializer</code> trait corresponds to one
of the types of the data model.</p>
<p>Implementations of <code>Deserialize</code> map themselves into this data model by
passing to the <code>Deserializer</code> a <code>Visitor</code> implementation that can receive
these various types.</p>
<p>The types that make up the Serde data model are:</p>
<ul>
<li><strong>14 primitive types</strong>
<ul>
<li>bool</li>
<li>i8, i16, i32, i64, i128</li>
<li>u8, u16, u32, u64, u128</li>
<li>f32, f64</li>
<li>char</li>
</ul>
</li>
<li><strong>string</strong>
<ul>
<li>UTF-8 bytes with a length and no null terminator.</li>
<li>When serializing, all strings are handled equally. When deserializing,
there are three flavors of strings: transient, owned, and borrowed.</li>
</ul>
</li>
<li><strong>byte array</strong> - [u8]
<ul>
<li>Similar to strings, during deserialization byte arrays can be
transient, owned, or borrowed.</li>
</ul>
</li>
<li><strong>option</strong>
<ul>
<li>Either none or some value.</li>
</ul>
</li>
<li><strong>unit</strong>
<ul>
<li>The type of <code>()</code> in Rust. It represents an anonymous value containing
no data.</li>
</ul>
</li>
<li><strong>unit_struct</strong>
<ul>
<li>For example <code>struct Unit</code> or <code>PhantomData&lt;T&gt;</code>. It represents a named
value containing no data.</li>
</ul>
</li>
<li><strong>unit_variant</strong>
<ul>
<li>For example the <code>E::A</code> and <code>E::B</code> in <code>enum E { A, B }</code>.</li>
</ul>
</li>
<li><strong>newtype_struct</strong>
<ul>
<li>For example <code>struct Millimeters(u8)</code>.</li>
</ul>
</li>
<li><strong>newtype_variant</strong>
<ul>
<li>For example the <code>E::N</code> in <code>enum E { N(u8) }</code>.</li>
</ul>
</li>
<li><strong>seq</strong>
<ul>
<li>A variably sized heterogeneous sequence of values, for example <code>Vec&lt;T&gt;</code>
or <code>HashSet&lt;T&gt;</code>. When serializing, the length may or may not be known
before iterating through all the data. When deserializing, the length
is determined by looking at the serialized data.</li>
</ul>
</li>
<li><strong>tuple</strong>
<ul>
<li>A statically sized heterogeneous sequence of values for which the
length will be known at deserialization time without looking at the
serialized data, for example <code>(u8,)</code> or <code>(String, u64, Vec&lt;T&gt;)</code> or
<code>[u64; 10]</code>.</li>
</ul>
</li>
<li><strong>tuple_struct</strong>
<ul>
<li>A named tuple, for example <code>struct Rgb(u8, u8, u8)</code>.</li>
</ul>
</li>
<li><strong>tuple_variant</strong>
<ul>
<li>For example the <code>E::T</code> in <code>enum E { T(u8, u8) }</code>.</li>
</ul>
</li>
<li><strong>map</strong>
<ul>
<li>A heterogeneous key-value pairing, for example <code>BTreeMap&lt;K, V&gt;</code>.</li>
</ul>
</li>
<li><strong>struct</strong>
<ul>
<li>A heterogeneous key-value pairing in which the keys are strings and
will be known at deserialization time without looking at the serialized
data, for example <code>struct S { r: u8, g: u8, b: u8 }</code>.</li>
</ul>
</li>
<li><strong>struct_variant</strong>
<ul>
<li>For example the <code>E::S</code> in <code>enum E { S { r: u8, g: u8, b: u8 } }</code>.</li>
</ul>
</li>
</ul>
<p>The <code>Deserializer</code> trait supports two entry point styles which enables
different kinds of deserialization.</p>
<ol>
<li>
<p>The <code>deserialize_any</code> method. Self-describing data formats like JSON are
able to look at the serialized data and tell what it represents. For
example the JSON deserializer may see an opening curly brace (<code>{</code>) and
know that it is seeing a map. If the data format supports
<code>Deserializer::deserialize_any</code>, it will drive the Visitor using whatever
type it sees in the input. JSON uses this approach when deserializing
<code>serde_json::Value</code> which is an enum that can represent any JSON
document. Without knowing what is in a JSON document, we can deserialize
it to <code>serde_json::Value</code> by going through
<code>Deserializer::deserialize_any</code>.</p>
</li>
<li>
<p>The various <code>deserialize_*</code> methods. Non-self-describing formats like
Postcard need to be told what is in the input in order to deserialize it.
The <code>deserialize_*</code> methods are hints to the deserializer for how to
interpret the next piece of input. Non-self-describing formats are not
able to deserialize something like <code>serde_json::Value</code> which relies on
<code>Deserializer::deserialize_any</code>.</p>
</li>
</ol>
<p>When implementing <code>Deserialize</code>, you should avoid relying on
<code>Deserializer::deserialize_any</code> unless you need to be told by the
Deserializer what type is in the input. Know that relying on
<code>Deserializer::deserialize_any</code> means your data type will be able to
deserialize from self-describing formats only, ruling out Postcard and many
others.</p>
<h2 id="lifetime"><a class="doc-anchor" href="#lifetime">§</a>Lifetime</h2>
<p>The <code>'de</code> lifetime of this trait is the lifetime of data that may be
borrowed from the input when deserializing. See the page <a href="https://serde.rs/lifetimes.html">Understanding
deserializer lifetimes</a> for a more detailed explanation of these lifetimes.</p>
<h2 id="example-implementation"><a class="doc-anchor" href="#example-implementation">§</a>Example implementation</h2>
<p>The <a href="https://serde.rs/data-format.html">example data format</a> presented on the website contains example code for
a basic JSON <code>Deserializer</code>.</p>
</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.Error" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#918">source</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a>: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a></h4></section></summary><div class="docblock"><p>The error type that can be returned if some error occurs during
deserialization.</p>
</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.deserialize_any" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#929-931">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_any" class="fn">deserialize_any</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Require the <code>Deserializer</code> to figure out how to drive the visitor based
on what data type is in the input.</p>
<p>When implementing <code>Deserialize</code>, you should avoid relying on
<code>Deserializer::deserialize_any</code> unless you need to be told by the
Deserializer what type is in the input. Know that relying on
<code>Deserializer::deserialize_any</code> means your data type will be able to
deserialize from self-describing formats only, ruling out Postcard and
many others.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_bool" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#934-936">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_bool" class="fn">deserialize_bool</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>bool</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_i8" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#939-941">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_i8" class="fn">deserialize_i8</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an <code>i8</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_i16" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#944-946">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_i16" class="fn">deserialize_i16</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an <code>i16</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_i32" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#949-951">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_i32" class="fn">deserialize_i32</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an <code>i32</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_i64" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#954-956">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_i64" class="fn">deserialize_i64</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an <code>i64</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_u8" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#970-972">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_u8" class="fn">deserialize_u8</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>u8</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_u16" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#975-977">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_u16" class="fn">deserialize_u16</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>u16</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_u32" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#980-982">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_u32" class="fn">deserialize_u32</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>u32</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_u64" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#985-987">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_u64" class="fn">deserialize_u64</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>u64</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_f32" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1001-1003">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_f32" class="fn">deserialize_f32</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>f32</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_f64" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1006-1008">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_f64" class="fn">deserialize_f64</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>f64</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_char" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1011-1013">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_char" class="fn">deserialize_char</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a <code>char</code> value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_str" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1022-1024">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_str" class="fn">deserialize_str</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a string value and does
not benefit from taking ownership of buffered data owned by the
<code>Deserializer</code>.</p>
<p>If the <code>Visitor</code> would benefit from taking ownership of <code>String</code> data,
indicate this to the <code>Deserializer</code> by using <code>deserialize_string</code>
instead.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_string" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1033-1035">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_string" class="fn">deserialize_string</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a string value and would
benefit from taking ownership of buffered data owned by the
<code>Deserializer</code>.</p>
<p>If the <code>Visitor</code> would not benefit from taking ownership of <code>String</code>
data, indicate that to the <code>Deserializer</code> by using <code>deserialize_str</code>
instead.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_bytes" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1044-1046">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_bytes" class="fn">deserialize_bytes</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a byte array and does not
benefit from taking ownership of buffered data owned by the
<code>Deserializer</code>.</p>
<p>If the <code>Visitor</code> would benefit from taking ownership of <code>Vec&lt;u8&gt;</code> data,
indicate this to the <code>Deserializer</code> by using <code>deserialize_byte_buf</code>
instead.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_byte_buf" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1055-1057">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_byte_buf" class="fn">deserialize_byte_buf</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a byte array and would
benefit from taking ownership of buffered data owned by the
<code>Deserializer</code>.</p>
<p>If the <code>Visitor</code> would not benefit from taking ownership of <code>Vec&lt;u8&gt;</code>
data, indicate that to the <code>Deserializer</code> by using <code>deserialize_bytes</code>
instead.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_option" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1064-1066">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_option" class="fn">deserialize_option</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an optional value.</p>
<p>This allows deserializers that encode an optional value as a nullable
value to convert the null value into <code>None</code> and a regular value into
<code>Some(value)</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_unit" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1069-1071">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_unit" class="fn">deserialize_unit</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a unit value.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_unit_struct" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1075-1081">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_unit_struct" class="fn">deserialize_unit_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a unit struct with a
particular name.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_newtype_struct" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1085-1091">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_newtype_struct" class="fn">deserialize_newtype_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a newtype struct with a
particular name.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_seq" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1094-1096">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_seq" class="fn">deserialize_seq</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a sequence of values.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_tuple" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1100-1102">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_tuple" class="fn">deserialize_tuple</a>&lt;V&gt;(
self,
len: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a sequence of values and
knows how many values there are without looking at the serialized data.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_tuple_struct" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1106-1113">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_tuple_struct" class="fn">deserialize_tuple_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
len: <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.usize.html">usize</a>,
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a tuple struct with a
particular name and number of fields.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_map" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1116-1118">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_map" class="fn">deserialize_map</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a map of key-value pairs.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_struct" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1122-1129">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_struct" class="fn">deserialize_struct</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
fields: &amp;'static [&amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>],
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting a struct with a particular
name and fields.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_enum" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1133-1140">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_enum" class="fn">deserialize_enum</a>&lt;V&gt;(
self,
name: &amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>,
variants: &amp;'static [&amp;'static <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.str.html">str</a>],
visitor: V,
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an enum value with a
particular name and possible variants.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_identifier" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1144-1146">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_identifier" class="fn">deserialize_identifier</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting the name of a struct
field or the discriminant of an enum variant.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="tymethod.deserialize_ignored_any" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1152-1154">source</a><h4 class="code-header">fn <a href="#tymethod.deserialize_ignored_any" class="fn">deserialize_ignored_any</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type needs to deserialize a value whose type
doesnt matter because it is ignored.</p>
<p>Deserializers for non-self-describing formats may not support this mode.</p>
</div></details></div><h2 id="provided-methods" class="section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="method.deserialize_i128" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#961-967">source</a><h4 class="code-header">fn <a href="#method.deserialize_i128" class="fn">deserialize_i128</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an <code>i128</code> value.</p>
<p>The default behavior unconditionally returns an error.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.deserialize_u128" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#992-998">source</a><h4 class="code-header">fn <a href="#method.deserialize_u128" class="fn">deserialize_u128</a>&lt;V&gt;(self, visitor: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.80.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;V::<a class="associatedtype" href="de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="associatedtype" href="trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>&gt;<div class="where">where
V: <a class="trait" href="de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a>&lt;'de&gt;,</div></h4></section></summary><div class="docblock"><p>Hint that the <code>Deserialize</code> type is expecting an <code>u128</code> value.</p>
<p>The default behavior unconditionally returns an error.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.is_human_readable" class="method"><a class="src rightside" href="../src/serde/de/mod.rs.html#1223-1225">source</a><h4 class="code-header">fn <a href="#method.is_human_readable" class="fn">is_human_readable</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.80.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Determine whether <code>Deserialize</code> implementations should expect to
deserialize their human-readable form.</p>
<p>Some types have a human-readable form that may be somewhat expensive to
construct, as well as a binary form that is compact and efficient.
Generally text-based formats like JSON and YAML will prefer to use the
human-readable one and binary formats like Postcard will prefer the
compact one.</p>
<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::de::{<span class="self">self</span>, Deserialize, Deserializer};
<span class="kw">impl</span>&lt;<span class="lifetime">'de</span>&gt; Deserialize&lt;<span class="lifetime">'de</span>&gt; <span class="kw">for </span>Timestamp {
<span class="kw">fn </span>deserialize&lt;D&gt;(deserializer: D) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>, D::Error&gt;
<span class="kw">where
</span>D: Deserializer&lt;<span class="lifetime">'de</span>&gt;,
{
<span class="kw">if </span>deserializer.is_human_readable() {
<span class="comment">// Deserialize from a human-readable string like "2015-05-15T17:01:00Z".
</span><span class="kw">let </span>s = String::deserialize(deserializer)<span class="question-mark">?</span>;
Timestamp::from_str(<span class="kw-2">&amp;</span>s).map_err(de::Error::custom)
} <span class="kw">else </span>{
<span class="comment">// Deserialize from a compact binary representation, seconds since
// the Unix epoch.
</span><span class="kw">let </span>n = u64::deserialize(deserializer)<span class="question-mark">?</span>;
<span class="prelude-val">Ok</span>(Timestamp::EPOCH + Duration::seconds(n))
}
}
}</code></pre></div>
<p>The default implementation of this method returns <code>true</code>. Data formats
may override this to <code>false</code> to request a compact form for types that
support one. Note that modifying this method to change a format from
human-readable to compact or vice versa should be regarded as a breaking
change, as a value serialized in human-readable mode is not required to
deserialize from the same data in compact mode.</p>
</div></details></div><h2 id="object-safety" class="section-header">Object Safety<a href="#object-safety" class="anchor">§</a></h2><div class="object-safety-info">This trait is <b>not</b> <a href="https://doc.rust-lang.org/1.80.0/reference/items/traits.html#object-safety">object safe</a>.</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-Deserializer%3C'de%3E-for-BytesDeserializer%3C'a,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#808-826">source</a><a href="#impl-Deserializer%3C'de%3E-for-BytesDeserializer%3C'a,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, 'a, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.BytesDeserializer.html" title="struct serde::de::value::BytesDeserializer">BytesDeserializer</a>&lt;'a, E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-CowStrDeserializer%3C'a,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#714-749">source</a><a href="#impl-Deserializer%3C'de%3E-for-CowStrDeserializer%3C'a,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, 'a, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.CowStrDeserializer.html" title="struct serde::de::value::CowStrDeserializer">CowStrDeserializer</a>&lt;'a, E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-2" class="associatedtype trait-impl"><a href="#associatedtype.Error-2" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-StrDeserializer%3C'a,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#427-459">source</a><a href="#impl-Deserializer%3C'de%3E-for-StrDeserializer%3C'a,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, 'a, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.StrDeserializer.html" title="struct serde::de::value::StrDeserializer">StrDeserializer</a>&lt;'a, E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-3" class="associatedtype trait-impl"><a href="#associatedtype.Error-3" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-EnumAccessDeserializer%3CA%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#1534-1552">source</a><a href="#impl-Deserializer%3C'de%3E-for-EnumAccessDeserializer%3CA%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, A&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.EnumAccessDeserializer.html" title="struct serde::de::value::EnumAccessDeserializer">EnumAccessDeserializer</a>&lt;A&gt;<div class="where">where
A: <a class="trait" href="de/trait.EnumAccess.html" title="trait serde::de::EnumAccess">EnumAccess</a>&lt;'de&gt;,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-4" class="associatedtype trait-impl"><a href="#associatedtype.Error-4" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = &lt;A as <a class="trait" href="de/trait.EnumAccess.html" title="trait serde::de::EnumAccess">EnumAccess</a>&lt;'de&gt;&gt;::<a class="associatedtype" href="de/trait.EnumAccess.html#associatedtype.Error" title="type serde::de::EnumAccess::Error">Error</a></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-MapAccessDeserializer%3CA%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#1469-1499">source</a><a href="#impl-Deserializer%3C'de%3E-for-MapAccessDeserializer%3CA%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, A&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.MapAccessDeserializer.html" title="struct serde::de::value::MapAccessDeserializer">MapAccessDeserializer</a>&lt;A&gt;<div class="where">where
A: <a class="trait" href="de/trait.MapAccess.html" title="trait serde::de::MapAccess">MapAccess</a>&lt;'de&gt;,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-5" class="associatedtype trait-impl"><a href="#associatedtype.Error-5" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = &lt;A as <a class="trait" href="de/trait.MapAccess.html" title="trait serde::de::MapAccess">MapAccess</a>&lt;'de&gt;&gt;::<a class="associatedtype" href="de/trait.MapAccess.html#associatedtype.Error" title="type serde::de::MapAccess::Error">Error</a></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-SeqAccessDeserializer%3CA%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#1066-1084">source</a><a href="#impl-Deserializer%3C'de%3E-for-SeqAccessDeserializer%3CA%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, A&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.SeqAccessDeserializer.html" title="struct serde::de::value::SeqAccessDeserializer">SeqAccessDeserializer</a>&lt;A&gt;<div class="where">where
A: <a class="trait" href="de/trait.SeqAccess.html" title="trait serde::de::SeqAccess">SeqAccess</a>&lt;'de&gt;,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-6" class="associatedtype trait-impl"><a href="#associatedtype.Error-6" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = &lt;A as <a class="trait" href="de/trait.SeqAccess.html" title="trait serde::de::SeqAccess">SeqAccess</a>&lt;'de&gt;&gt;::<a class="associatedtype" href="de/trait.SeqAccess.html#associatedtype.Error" title="type serde::de::SeqAccess::Error">Error</a></h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-BoolDeserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#293">source</a><a href="#impl-Deserializer%3C'de%3E-for-BoolDeserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.BoolDeserializer.html" title="struct serde::de::value::BoolDeserializer">BoolDeserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-7" class="associatedtype trait-impl"><a href="#associatedtype.Error-7" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-BorrowedBytesDeserializer%3C'de,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#856-874">source</a><a href="#impl-Deserializer%3C'de%3E-for-BorrowedBytesDeserializer%3C'de,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.BorrowedBytesDeserializer.html" title="struct serde::de::value::BorrowedBytesDeserializer">BorrowedBytesDeserializer</a>&lt;'de, E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-8" class="associatedtype trait-impl"><a href="#associatedtype.Error-8" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-BorrowedStrDeserializer%3C'de,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#506-538">source</a><a href="#impl-Deserializer%3C'de%3E-for-BorrowedStrDeserializer%3C'de,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.BorrowedStrDeserializer.html" title="struct serde::de::value::BorrowedStrDeserializer">BorrowedStrDeserializer</a>&lt;'de, E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-9" class="associatedtype trait-impl"><a href="#associatedtype.Error-9" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-CharDeserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#307">source</a><a href="#impl-Deserializer%3C'de%3E-for-CharDeserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.CharDeserializer.html" title="struct serde::de::value::CharDeserializer">CharDeserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-10" class="associatedtype trait-impl"><a href="#associatedtype.Error-10" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-F32Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#305">source</a><a href="#impl-Deserializer%3C'de%3E-for-F32Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.F32Deserializer.html" title="struct serde::de::value::F32Deserializer">F32Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-11" class="associatedtype trait-impl"><a href="#associatedtype.Error-11" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-F64Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#306">source</a><a href="#impl-Deserializer%3C'de%3E-for-F64Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.F64Deserializer.html" title="struct serde::de::value::F64Deserializer">F64Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-12" class="associatedtype trait-impl"><a href="#associatedtype.Error-12" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-I8Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#294">source</a><a href="#impl-Deserializer%3C'de%3E-for-I8Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.I8Deserializer.html" title="struct serde::de::value::I8Deserializer">I8Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-13" class="associatedtype trait-impl"><a href="#associatedtype.Error-13" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-I16Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#295">source</a><a href="#impl-Deserializer%3C'de%3E-for-I16Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.I16Deserializer.html" title="struct serde::de::value::I16Deserializer">I16Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-14" class="associatedtype trait-impl"><a href="#associatedtype.Error-14" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-I32Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#296">source</a><a href="#impl-Deserializer%3C'de%3E-for-I32Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.I32Deserializer.html" title="struct serde::de::value::I32Deserializer">I32Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-15" class="associatedtype trait-impl"><a href="#associatedtype.Error-15" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-I64Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#297">source</a><a href="#impl-Deserializer%3C'de%3E-for-I64Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.I64Deserializer.html" title="struct serde::de::value::I64Deserializer">I64Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-16" class="associatedtype trait-impl"><a href="#associatedtype.Error-16" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-I128Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#298">source</a><a href="#impl-Deserializer%3C'de%3E-for-I128Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.I128Deserializer.html" title="struct serde::de::value::I128Deserializer">I128Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-17" class="associatedtype trait-impl"><a href="#associatedtype.Error-17" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-IsizeDeserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#299">source</a><a href="#impl-Deserializer%3C'de%3E-for-IsizeDeserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.IsizeDeserializer.html" title="struct serde::de::value::IsizeDeserializer">IsizeDeserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-18" class="associatedtype trait-impl"><a href="#associatedtype.Error-18" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-StringDeserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#609-641">source</a><a href="#impl-Deserializer%3C'de%3E-for-StringDeserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.StringDeserializer.html" title="struct serde::de::value::StringDeserializer">StringDeserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-19" class="associatedtype trait-impl"><a href="#associatedtype.Error-19" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-U8Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#300">source</a><a href="#impl-Deserializer%3C'de%3E-for-U8Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.U8Deserializer.html" title="struct serde::de::value::U8Deserializer">U8Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-20" class="associatedtype trait-impl"><a href="#associatedtype.Error-20" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-U16Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#301">source</a><a href="#impl-Deserializer%3C'de%3E-for-U16Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.U16Deserializer.html" title="struct serde::de::value::U16Deserializer">U16Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-21" class="associatedtype trait-impl"><a href="#associatedtype.Error-21" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-U32Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#338-370">source</a><a href="#impl-Deserializer%3C'de%3E-for-U32Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.U32Deserializer.html" title="struct serde::de::value::U32Deserializer">U32Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-22" class="associatedtype trait-impl"><a href="#associatedtype.Error-22" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-U64Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#302">source</a><a href="#impl-Deserializer%3C'de%3E-for-U64Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.U64Deserializer.html" title="struct serde::de::value::U64Deserializer">U64Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-23" class="associatedtype trait-impl"><a href="#associatedtype.Error-23" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-U128Deserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#303">source</a><a href="#impl-Deserializer%3C'de%3E-for-U128Deserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.U128Deserializer.html" title="struct serde::de::value::U128Deserializer">U128Deserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-24" class="associatedtype trait-impl"><a href="#associatedtype.Error-24" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-UnitDeserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#151-176">source</a><a href="#impl-Deserializer%3C'de%3E-for-UnitDeserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.UnitDeserializer.html" title="struct serde::de::value::UnitDeserializer">UnitDeserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-25" class="associatedtype trait-impl"><a href="#associatedtype.Error-25" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-UsizeDeserializer%3CE%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#304">source</a><a href="#impl-Deserializer%3C'de%3E-for-UsizeDeserializer%3CE%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.UsizeDeserializer.html" title="struct serde::de::value::UsizeDeserializer">UsizeDeserializer</a>&lt;E&gt;<div class="where">where
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-26" class="associatedtype trait-impl"><a href="#associatedtype.Error-26" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-MapDeserializer%3C'de,+I,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#1157-1198">source</a><a href="#impl-Deserializer%3C'de%3E-for-MapDeserializer%3C'de,+I,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, I, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.MapDeserializer.html" title="struct serde::de::value::MapDeserializer">MapDeserializer</a>&lt;'de, I, E&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a>,
I::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a>: Pair,
&lt;I::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a> as Pair&gt;::First: <a class="trait" href="de/trait.IntoDeserializer.html" title="trait serde::de::IntoDeserializer">IntoDeserializer</a>&lt;'de, E&gt;,
&lt;I::<a class="associatedtype" href="https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" title="type core::iter::traits::iterator::Iterator::Item">Item</a> as Pair&gt;::Second: <a class="trait" href="de/trait.IntoDeserializer.html" title="trait serde::de::IntoDeserializer">IntoDeserializer</a>&lt;'de, E&gt;,
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-27" class="associatedtype trait-impl"><a href="#associatedtype.Error-27" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Deserializer%3C'de%3E-for-SeqDeserializer%3CI,+E%3E" class="impl"><a class="src rightside" href="../src/serde/de/value.rs.html#931-953">source</a><a href="#impl-Deserializer%3C'de%3E-for-SeqDeserializer%3CI,+E%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'de, I, T, E&gt; <a class="trait" href="trait.Deserializer.html" title="trait serde::Deserializer">Deserializer</a>&lt;'de&gt; for <a class="struct" href="de/value/struct.SeqDeserializer.html" title="struct serde::de::value::SeqDeserializer">SeqDeserializer</a>&lt;I, E&gt;<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.80.0/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a>&lt;Item = T&gt;,
T: <a class="trait" href="de/trait.IntoDeserializer.html" title="trait serde::de::IntoDeserializer">IntoDeserializer</a>&lt;'de, E&gt;,
E: <a class="trait" href="de/trait.Error.html" title="trait serde::de::Error">Error</a>,</div></h3></section></summary><div class="impl-items"><section id="associatedtype.Error-28" class="associatedtype trait-impl"><a href="#associatedtype.Error-28" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Error" class="associatedtype">Error</a> = E</h4></section></div></details></div><script src="../trait.impl/serde/de/trait.Deserializer.js" async></script></section></div></main></body></html>