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328 lines
859 KiB
5 years ago
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `Deserializer` trait in crate `serde`."><meta name="keywords" content="rust, rustlang, rust-lang, Deserializer"><title>serde::Deserializer - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="../favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc trait"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../serde/index.html'><div class='logo-container'><img src='../rust-logo.png' alt='logo'></div></a><p class='location'>Trait Deserializer</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#associated-types">Associated Types</a><div class="sidebar-links"><a href="#associatedtype.Error">Error</a></div><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.deserialize_any">deserialize_any</a><a href="#tymethod.deserialize_bool">deserialize_bool</a><a href="#tymethod.deserialize_byte_buf">deserialize_byte_buf</a><a href="#tymethod.deserialize_bytes">deserialize_bytes</a><a href="#tymethod.deserialize_char">deserialize_char</a><a href="#tymethod.deserialize_enum">deserialize_enum</a><a href="#tymethod.deserialize_f32">deserialize_f32</a><a href="#tymethod.deserialize_f64">deserialize_f64</a><a href="#tymethod.deserialize_i16">deserialize_i16</a><a href="#tymethod.deserialize_i32">deserialize_i32</a><a href="#tymethod.deserialize_i64">deserialize_i64</a><a href="#tymethod.deserialize_i8">deserialize_i8</a><a href="#tymethod.deserialize_identifier">deserialize_identifier</a><a href="#tymethod.deserialize_ignored_any">deserialize_ignored_any</a><a href="#tymethod.deserialize_map">deserialize_map</a><a href="#tymethod.deserialize_newtype_struct">deserialize_newtype_struct</a><a href="#tymethod.deserialize_option">deserialize_option</a><a href="#tymethod.deserialize_seq">deserialize_seq</a><a href="#tymethod.deserialize_str">deserialize_str</a><a href="#tymethod.deserialize_string">deserialize_string</a><a href="#tymethod.deserialize_struct">deserialize_struct</a><a href="#tymethod.deserialize_tuple">deserialize_tuple</a><a href="#tymethod.deserialize_tuple_struct">deserialize_tuple_struct</a><a href="#tymethod.deserialize_u16">deserialize_u16</a><a href="#tymethod.deserialize_u32">deserialize_u32</a><a href="#tymethod.deserialize_u64">deserialize_u64</a><a href="#tymethod.deserialize_u8">deserialize_u8</a><a href="#tymethod.deserialize_unit">deserialize_unit</a><a href="#tymethod.deserialize_unit_struct">deserialize_unit_struct</a></div><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.deserialize_i128">deserialize_i128</a><a href="#method.deserialize_u128">deserialize_u128</a><a href="#method.is_human_readable">is_human_readable</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='index.html'>serde</a></p><script>window.sidebarCurrent = {name: 'Deserializer', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class=
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type <a href='#associatedtype.Error' class="type">Error</a>: <a class="trait" href="../serde/de/trait.Error.html" title="trait serde::de::Error">Error</a>;
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fn <a href='#tymethod.deserialize_any' class='fnname'>deserialize_any</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_bool' class='fnname'>deserialize_bool</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_i8' class='fnname'>deserialize_i8</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_i16' class='fnname'>deserialize_i16</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_i32' class='fnname'>deserialize_i32</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_i64' class='fnname'>deserialize_i64</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_u8' class='fnname'>deserialize_u8</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_u16' class='fnname'>deserialize_u16</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_u32' class='fnname'>deserialize_u32</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_u64' class='fnname'>deserialize_u64</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_f32' class='fnname'>deserialize_f32</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_f64' class='fnname'>deserialize_f64</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_char' class='fnname'>deserialize_char</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_str' class='fnname'>deserialize_str</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_string' class='fnname'>deserialize_string</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_bytes' class='fnname'>deserialize_bytes</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_byte_buf' class='fnname'>deserialize_byte_buf</a><V>(<br> self, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_option' class='fnname'>deserialize_option</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_unit' class='fnname'>deserialize_unit</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_unit_struct' class='fnname'>deserialize_unit_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_newtype_struct' class='fnname'>deserialize_newtype_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_seq' class='fnname'>deserialize_seq</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_tuple' class='fnname'>deserialize_tuple</a><V>(<br> self, <br> len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_tuple_struct' class='fnname'>deserialize_tuple_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_map' class='fnname'>deserialize_map</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
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<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_struct' class='fnname'>deserialize_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> fields: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'static [</a>&'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
|
||
|
|
<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_enum' class='fnname'>deserialize_enum</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> variants: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'static [</a>&'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
|
||
|
|
<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_identifier' class='fnname'>deserialize_identifier</a><V>(<br> self, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
|
||
|
|
<div class='item-spacer'></div> fn <a href='#tymethod.deserialize_ignored_any' class='fnname'>deserialize_ignored_any</a><V>(<br> self, <br> visitor: V<br> ) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>;
|
||
|
|
|
||
|
|
fn <a href='#method.deserialize_i128' class='fnname'>deserialize_i128</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>,
|
||
|
|
{ ... }
|
||
|
|
<div class='item-spacer'></div> fn <a href='#method.deserialize_u128' class='fnname'>deserialize_u128</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>><br> <span class="where">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de></span>,
|
||
|
|
{ ... }
|
||
|
|
<div class='item-spacer'></div> fn <a href='#method.is_human_readable' class='fnname'>is_human_readable</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a> { ... }
|
||
|
|
}</pre></div><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>Serializer</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<T></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<T></code>
|
||
|
|
or <code>HashSet<T></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<T>)</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<K, V></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</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
|
||
|
|
Bincode 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 Bincode and many
|
||
|
|
others.</p>
|
||
|
|
<h1 id="lifetime" class="section-header"><a href="#lifetime">Lifetime</a></h1>
|
||
|
|
<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>
|
||
|
|
<h1 id="example-implementation" class="section-header"><a href="#example-implementation">Example implementation</a></h1>
|
||
|
|
<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>
|
||
|
|
<h2 id='associated-types' class='small-section-header'>Associated Types<a href='#associated-types' class='anchor'></a></h2><div class='methods'><h3 id='associatedtype.Error' class='method'><code id='Error.t'>type <a href='#associatedtype.Error' class="type">Error</a>: <a class="trait" href="../serde/de/trait.Error.html" title="trait serde::de::Error">Error</a></code></h3><div class='docblock'><p>The error type that can be returned if some error occurs during
|
||
|
|
deserialization.</p>
|
||
|
|
</div></div><span class='loading-content'>Loading content...</span>
|
||
|
|
<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.deserialize_any' class='method'><code id='deserialize_any.v'>fn <a href='#tymethod.deserialize_any' class='fnname'>deserialize_any</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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 Bincode and
|
||
|
|
many others.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_bool' class='method'><code id='deserialize_bool.v'>fn <a href='#tymethod.deserialize_bool' class='fnname'>deserialize_bool</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>bool</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_i8' class='method'><code id='deserialize_i8.v'>fn <a href='#tymethod.deserialize_i8' class='fnname'>deserialize_i8</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting an <code>i8</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_i16' class='method'><code id='deserialize_i16.v'>fn <a href='#tymethod.deserialize_i16' class='fnname'>deserialize_i16</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting an <code>i16</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_i32' class='method'><code id='deserialize_i32.v'>fn <a href='#tymethod.deserialize_i32' class='fnname'>deserialize_i32</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting an <code>i32</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_i64' class='method'><code id='deserialize_i64.v'>fn <a href='#tymethod.deserialize_i64' class='fnname'>deserialize_i64</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting an <code>i64</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_u8' class='method'><code id='deserialize_u8.v'>fn <a href='#tymethod.deserialize_u8' class='fnname'>deserialize_u8</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>u8</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_u16' class='method'><code id='deserialize_u16.v'>fn <a href='#tymethod.deserialize_u16' class='fnname'>deserialize_u16</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>u16</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_u32' class='method'><code id='deserialize_u32.v'>fn <a href='#tymethod.deserialize_u32' class='fnname'>deserialize_u32</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>u32</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_u64' class='method'><code id='deserialize_u64.v'>fn <a href='#tymethod.deserialize_u64' class='fnname'>deserialize_u64</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>u64</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_f32' class='method'><code id='deserialize_f32.v'>fn <a href='#tymethod.deserialize_f32' class='fnname'>deserialize_f32</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>f32</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_f64' class='method'><code id='deserialize_f64.v'>fn <a href='#tymethod.deserialize_f64' class='fnname'>deserialize_f64</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>f64</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_char' class='method'><code id='deserialize_char.v'>fn <a href='#tymethod.deserialize_char' class='fnname'>deserialize_char</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a <code>char</code> value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_str' class='method'><code id='deserialize_str.v'>fn <a href='#tymethod.deserialize_str' class='fnname'>deserialize_str</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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,
|
||
|
|
indiciate this to the <code>Deserializer</code> by using <code>deserialize_string</code>
|
||
|
|
instead.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_string' class='method'><code id='deserialize_string.v'>fn <a href='#tymethod.deserialize_string' class='fnname'>deserialize_string</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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><h3 id='tymethod.deserialize_bytes' class='method'><code id='deserialize_bytes.v'>fn <a href='#tymethod.deserialize_bytes' class='fnname'>deserialize_bytes</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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<u8></code> data,
|
||
|
|
indicate this to the <code>Deserializer</code> by using <code>deserialize_byte_buf</code>
|
||
|
|
instead.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_byte_buf' class='method'><code id='deserialize_byte_buf.v'>fn <a href='#tymethod.deserialize_byte_buf' class='fnname'>deserialize_byte_buf</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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<u8></code>
|
||
|
|
data, indicate that to the <code>Deserializer</code> by using <code>deserialize_bytes</code>
|
||
|
|
instead.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_option' class='method'><code id='deserialize_option.v'>fn <a href='#tymethod.deserialize_option' class='fnname'>deserialize_option</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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><h3 id='tymethod.deserialize_unit' class='method'><code id='deserialize_unit.v'>fn <a href='#tymethod.deserialize_unit' class='fnname'>deserialize_unit</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a unit value.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_unit_struct' class='method'><code id='deserialize_unit_struct.v'>fn <a href='#tymethod.deserialize_unit_struct' class='fnname'>deserialize_unit_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a unit struct with a
|
||
|
|
particular name.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_newtype_struct' class='method'><code id='deserialize_newtype_struct.v'>fn <a href='#tymethod.deserialize_newtype_struct' class='fnname'>deserialize_newtype_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a newtype struct with a
|
||
|
|
particular name.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_seq' class='method'><code id='deserialize_seq.v'>fn <a href='#tymethod.deserialize_seq' class='fnname'>deserialize_seq</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a sequence of values.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_tuple' class='method'><code id='deserialize_tuple.v'>fn <a href='#tymethod.deserialize_tuple' class='fnname'>deserialize_tuple</a><V>(<br> self, <br> len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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><h3 id='tymethod.deserialize_tuple_struct' class='method'><code id='deserialize_tuple_struct.v'>fn <a href='#tymethod.deserialize_tuple_struct' class='fnname'>deserialize_tuple_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> len: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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><h3 id='tymethod.deserialize_map' class='method'><code id='deserialize_map.v'>fn <a href='#tymethod.deserialize_map' class='fnname'>deserialize_map</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a map of key-value pairs.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_struct' class='method'><code id='deserialize_struct.v'>fn <a href='#tymethod.deserialize_struct' class='fnname'>deserialize_struct</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> fields: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'static [</a>&'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting a struct with a particular
|
||
|
|
name and fields.</p>
|
||
|
|
</div><h3 id='tymethod.deserialize_enum' class='method'><code id='deserialize_enum.v'>fn <a href='#tymethod.deserialize_enum' class='fnname'>deserialize_enum</a><V>(<br> self, <br> name: &'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> variants: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'static [</a>&'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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><h3 id='tymethod.deserialize_identifier' class='method'><code id='deserialize_identifier.v'>fn <a href='#tymethod.deserialize_identifier' class='fnname'>deserialize_identifier</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><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><h3 id='tymethod.deserialize_ignored_any' class='method'><code id='deserialize_ignored_any.v'>fn <a href='#tymethod.deserialize_ignored_any' class='fnname'>deserialize_ignored_any</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type needs to deserialize a value whose type
|
||
|
|
doesn't matter because it is ignored.</p>
|
||
|
|
<p>Deserializers for non-self-describing formats may not support this mode.</p>
|
||
|
|
</div></div><span class='loading-content'>Loading content...</span>
|
||
|
|
<h2 id='provided-methods' class='small-section-header'>Provided methods<a href='#provided-methods' class='anchor'></a></h2><div class='methods'><h3 id='method.deserialize_i128' class='method'><code id='deserialize_i128.v'>fn <a href='#method.deserialize_i128' class='fnname'>deserialize_i128</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting an <code>i128</code> value.</p>
|
||
|
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<p>This method is available only on Rust compiler versions >=1.26. The
|
||
|
|
default behavior unconditionally returns an error.</p>
|
||
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|
</div><h3 id='method.deserialize_u128' class='method'><code id='deserialize_u128.v'>fn <a href='#method.deserialize_u128' class='fnname'>deserialize_u128</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code></h3><div class='docblock'><p>Hint that the <code>Deserialize</code> type is expecting an <code>u128</code> value.</p>
|
||
|
|
<p>This method is available only on Rust compiler versions >=1.26. The
|
||
|
|
default behavior unconditionally returns an error.</p>
|
||
|
|
</div><h3 id='method.is_human_readable' class='method'><code id='is_human_readable.v'>fn <a href='#method.is_human_readable' class='fnname'>is_human_readable</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></h3><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
|
||
|
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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 Bincode will prefer the
|
||
|
|
compact one.</p>
|
||
|
|
<pre><code class="language-edition2018"># use std::ops::Add;
|
||
|
|
# use std::str::FromStr;
|
||
|
|
#
|
||
|
|
# struct Timestamp;
|
||
|
|
#
|
||
|
|
# impl Timestamp {
|
||
|
|
# const EPOCH: Timestamp = Timestamp;
|
||
|
|
# }
|
||
|
|
#
|
||
|
|
# impl FromStr for Timestamp {
|
||
|
|
# type Err = String;
|
||
|
|
# fn from_str(_: &str) -> Result<Self, Self::Err> {
|
||
|
|
# unimplemented!()
|
||
|
|
# }
|
||
|
|
# }
|
||
|
|
#
|
||
|
|
# struct Duration;
|
||
|
|
#
|
||
|
|
# impl Duration {
|
||
|
|
# fn seconds(_: u64) -> Self { unimplemented!() }
|
||
|
|
# }
|
||
|
|
#
|
||
|
|
# impl Add<Duration> for Timestamp {
|
||
|
|
# type Output = Timestamp;
|
||
|
|
# fn add(self, _: Duration) -> Self::Output {
|
||
|
|
# unimplemented!()
|
||
|
|
# }
|
||
|
|
# }
|
||
|
|
#
|
||
|
|
use serde::de::{self, Deserialize, Deserializer};
|
||
|
|
|
||
|
|
impl<'de> Deserialize<'de> for Timestamp {
|
||
|
|
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
||
|
|
where
|
||
|
|
D: Deserializer<'de>,
|
||
|
|
{
|
||
|
|
if deserializer.is_human_readable() {
|
||
|
|
// Deserialize from a human-readable string like "2015-05-15T17:01:00Z".
|
||
|
|
let s = String::deserialize(deserializer)?;
|
||
|
|
Timestamp::from_str(&s).map_err(de::Error::custom)
|
||
|
|
} else {
|
||
|
|
// Deserialize from a compact binary representation, seconds since
|
||
|
|
// the Unix epoch.
|
||
|
|
let n = u64::deserialize(deserializer)?;
|
||
|
|
Ok(Timestamp::EPOCH + Duration::seconds(n))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</code></pre>
|
||
|
|
<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></div><span class='loading-content'>Loading content...</span>
|
||
|
|
<h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><div class='item-list' id='implementors-list'><h3 id='impl-Deserializer%3C%27de%3E' class='impl'><code class='in-band'>impl<'de, 'a, E> Deserializer<'de> for <a class="struct" href="../serde/de/value/struct.CowStrDeserializer.html" title="struct serde::de::value::CowStrDeserializer">CowStrDeserializer</a><'a, E> <span class="where fmt-newline">where<br> E: <a class="trait" href="../serde/de/trait.Error.html" title="trait serde::de::Error">Error</a>, </span></code><a href='#impl-Deserializer%3C%27de%3E' class='anchor'></a><a class='srclink' href='../src/serde/de/value.rs.html#613-648' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='#associatedtype.Error-1' class="type">Error</a> = E</code></h4><h4 id='method.deserialize_any' class="method hidden"><code id='deserialize_any.v-1'>fn <a href='#method.deserialize_any' class='fnname'>deserialize_any</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code><a class='srclink' href='../src/serde/de/value.rs.html#619-627' title='goto source code'>[src]</a></h4><h4 id='method.deserialize_enum' class="method hidden"><code id='deserialize_enum.v-1'>fn <a href='#method.deserialize_enum' class='fnname'>deserialize_enum</a><V>(<br> self, <br> name: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, <br> variants: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&'static [</a>&'static <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> visitor: V<br>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code><a class='srclink' href='../src/serde/de/value.rs.html#629-641' title='goto source code'>[src]</a></h4><h4 id='method.deserialize_bool' class="method hidden"><code id='deserialize_bool.v-1'>fn <a href='#method.deserialize_bool' class='fnname'>deserialize_bool</a><V>(self, visitor: V) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><V::<a class="type" href="../serde/de/trait.Visitor.html#associatedtype.Value" title="type serde::de::Visitor::Value">Value</a>, Self::<a class="type" href="../serde/trait.Deserializer.html#associatedtype.Error" title="type serde::Deserializer::Error">Error</a>> <span class="where fmt-newline">where<br> V: <a class="trait" href="../serde/de/trait.Visitor.html" title="trait serde::de::Visitor">Visitor</a><'de>, </span></code><a class='srclin
|
||
|
|
src="../implementors/serde/trait.Deserializer.js">
|
||
|
|
</script></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g., <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g., <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g., <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "serde";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html>
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