| <!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="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/serde-1.0.163/src/de/value.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>value.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../serde/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../serde/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="doccomment">//! Building blocks for deserializing basic values using the `IntoDeserializer` |
| //! trait. |
| //! |
| //! ```edition2018 |
| //! use std::str::FromStr; |
| //! use serde::Deserialize; |
| //! use serde::de::{value, IntoDeserializer}; |
| //! |
| //! #[derive(Deserialize)] |
| //! enum Setting { |
| //! On, |
| //! Off, |
| //! } |
| //! |
| //! impl FromStr for Setting { |
| //! type Err = value::Error; |
| //! |
| //! fn from_str(s: &str) -> Result<Self, Self::Err> { |
| //! Self::deserialize(s.into_deserializer()) |
| //! } |
| //! } |
| //! ``` |
| |
| </span><span class="kw">use </span>lib::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span><span class="self">self</span>::private::{First, Second}; |
| <span class="kw">use </span>__private::size_hint; |
| <span class="kw">use </span>de::{<span class="self">self</span>, Deserializer, Expected, IntoDeserializer, SeqAccess, Visitor}; |
| <span class="kw">use </span>ser; |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| // For structs that contain a PhantomData. We do not want the trait |
| // bound `E: Clone` inferred by derive(Clone). |
| </span><span class="macro">macro_rules! </span>impl_copy_clone { |
| (<span class="macro-nonterminal">$ty</span>:ident $(<<span class="macro-nonterminal">$lifetime</span>:tt>)<span class="kw-2">*</span>) => { |
| <span class="kw">impl</span><$(<span class="macro-nonterminal">$lifetime</span>,)* E> Copy <span class="kw">for </span><span class="macro-nonterminal">$ty</span><$(<span class="macro-nonterminal">$lifetime</span>,)* E> {} |
| |
| <span class="kw">impl</span><$(<span class="macro-nonterminal">$lifetime</span>,)* E> Clone <span class="kw">for </span><span class="macro-nonterminal">$ty</span><$(<span class="macro-nonterminal">$lifetime</span>,)* E> { |
| <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| <span class="kw-2">*</span><span class="self">self |
| </span>} |
| } |
| }; |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A minimal representation of all possible errors that can occur using the |
| /// `IntoDeserializer` trait. |
| </span><span class="attribute">#[derive(Clone, PartialEq)] |
| </span><span class="kw">pub struct </span>Error { |
| err: ErrorImpl, |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">type </span>ErrorImpl = Box<str>; |
| <span class="attribute">#[cfg(not(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>)))] |
| </span><span class="kw">type </span>ErrorImpl = (); |
| |
| <span class="kw">impl </span>de::Error <span class="kw">for </span>Error { |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| #[cold] |
| </span><span class="kw">fn </span>custom<T>(msg: T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: Display, |
| { |
| Error { |
| err: msg.to_string().into_boxed_str(), |
| } |
| } |
| |
| <span class="attribute">#[cfg(not(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>)))] |
| #[cold] |
| </span><span class="kw">fn </span>custom<T>(msg: T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: Display, |
| { |
| <span class="kw">let _ </span>= msg; |
| Error { err: () } |
| } |
| } |
| |
| <span class="kw">impl </span>ser::Error <span class="kw">for </span>Error { |
| <span class="attribute">#[cold] |
| </span><span class="kw">fn </span>custom<T>(msg: T) -> <span class="self">Self |
| </span><span class="kw">where |
| </span>T: Display, |
| { |
| de::Error::custom(msg) |
| } |
| } |
| |
| <span class="kw">impl </span>Display <span class="kw">for </span>Error { |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter.write_str(<span class="kw-2">&</span><span class="self">self</span>.err) |
| } |
| |
| <span class="attribute">#[cfg(not(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>)))] |
| </span><span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter.write_str(<span class="string">"Serde deserialization error"</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>Debug <span class="kw">for </span>Error { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">let </span><span class="kw-2">mut </span>debug = formatter.debug_tuple(<span class="string">"Error"</span>); |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span>debug.field(<span class="kw-2">&</span><span class="self">self</span>.err); |
| debug.finish() |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl </span>error::Error <span class="kw">for </span>Error { |
| <span class="kw">fn </span>description(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>str { |
| <span class="kw-2">&</span><span class="self">self</span>.err |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>() |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = UnitDeserializer<E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> UnitDeserializer<E> { |
| UnitDeserializer::new() |
| } |
| } |
| |
| <span class="doccomment">/// A deserializer holding a `()`. |
| </span><span class="kw">pub struct </span>UnitDeserializer<E> { |
| marker: PhantomData<E>, |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(UnitDeserializer); |
| |
| <span class="kw">impl</span><E> UnitDeserializer<E> { |
| <span class="attribute">#[allow(missing_docs)] |
| </span><span class="kw">pub fn </span>new() -> <span class="self">Self </span>{ |
| UnitDeserializer { |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>UnitDeserializer<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf unit unit_struct newtype_struct seq tuple tuple_struct |
| map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_unit() |
| } |
| |
| <span class="kw">fn </span>deserialize_option<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_none() |
| } |
| } |
| |
| <span class="kw">impl</span><E> Debug <span class="kw">for </span>UnitDeserializer<E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter.debug_struct(<span class="string">"UnitDeserializer"</span>).finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer that cannot be instantiated. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"unstable"</span>)] |
| </span><span class="kw">pub struct </span>NeverDeserializer<E> { |
| never: !, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"unstable"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>! |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = NeverDeserializer<E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| <span class="self">self |
| </span>} |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"unstable"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>NeverDeserializer<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, _visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.never |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="macro">macro_rules! </span>primitive_deserializer { |
| (<span class="macro-nonterminal">$ty</span>:ty, <span class="macro-nonterminal">$doc</span>:tt, <span class="macro-nonterminal">$name</span>:ident, <span class="macro-nonterminal">$method</span>:ident $(<span class="macro-nonterminal">$cast</span>:tt)<span class="kw-2">*</span>) => { |
| <span class="attribute">#[doc = <span class="string">"A deserializer holding"</span>] |
| #[doc = <span class="macro-nonterminal">$doc</span>] |
| </span><span class="kw">pub struct </span><span class="macro-nonterminal">$name</span><E> { |
| value: <span class="macro-nonterminal">$ty</span>, |
| marker: PhantomData<E> |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(<span class="macro-nonterminal">$name</span>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span><span class="macro-nonterminal">$ty |
| </span><span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = <span class="macro-nonterminal">$name</span><E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="macro-nonterminal">$name</span><E> { |
| <span class="macro-nonterminal">$name::new</span>(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><E> <span class="macro-nonterminal">$name</span><E> { |
| <span class="attribute">#[allow(missing_docs)] |
| </span><span class="kw">pub fn </span>new(value: <span class="macro-nonterminal">$ty</span>) -> <span class="self">Self </span>{ |
| <span class="macro-nonterminal">$name </span>{ |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span><span class="macro-nonterminal">$name</span><E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str |
| string bytes byte_buf option unit unit_struct newtype_struct seq |
| tuple tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.<span class="macro-nonterminal">$method</span>(<span class="self">self</span>.value $(<span class="macro-nonterminal">$cast</span>)<span class="kw-2">*</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><E> Debug <span class="kw">for </span><span class="macro-nonterminal">$name</span><E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="macro">stringify!</span>(<span class="macro-nonterminal">$name</span>)) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| } |
| } |
| |
| <span class="macro">primitive_deserializer!</span>(bool, <span class="string">"a `bool`."</span>, BoolDeserializer, visit_bool); |
| <span class="macro">primitive_deserializer!</span>(i8, <span class="string">"an `i8`."</span>, I8Deserializer, visit_i8); |
| <span class="macro">primitive_deserializer!</span>(i16, <span class="string">"an `i16`."</span>, I16Deserializer, visit_i16); |
| <span class="macro">primitive_deserializer!</span>(i32, <span class="string">"an `i32`."</span>, I32Deserializer, visit_i32); |
| <span class="macro">primitive_deserializer!</span>(i64, <span class="string">"an `i64`."</span>, I64Deserializer, visit_i64); |
| <span class="macro">primitive_deserializer!</span>(isize, <span class="string">"an `isize`."</span>, IsizeDeserializer, visit_i64 <span class="kw">as </span>i64); |
| <span class="macro">primitive_deserializer!</span>(u8, <span class="string">"a `u8`."</span>, U8Deserializer, visit_u8); |
| <span class="macro">primitive_deserializer!</span>(u16, <span class="string">"a `u16`."</span>, U16Deserializer, visit_u16); |
| <span class="macro">primitive_deserializer!</span>(u64, <span class="string">"a `u64`."</span>, U64Deserializer, visit_u64); |
| <span class="macro">primitive_deserializer!</span>(usize, <span class="string">"a `usize`."</span>, UsizeDeserializer, visit_u64 <span class="kw">as </span>u64); |
| <span class="macro">primitive_deserializer!</span>(f32, <span class="string">"an `f32`."</span>, F32Deserializer, visit_f32); |
| <span class="macro">primitive_deserializer!</span>(f64, <span class="string">"an `f64`."</span>, F64Deserializer, visit_f64); |
| <span class="macro">primitive_deserializer!</span>(char, <span class="string">"a `char`."</span>, CharDeserializer, visit_char); |
| |
| <span class="macro">serde_if_integer128! </span>{ |
| <span class="macro">primitive_deserializer!</span>(i128, <span class="string">"an `i128`."</span>, I128Deserializer, visit_i128); |
| <span class="macro">primitive_deserializer!</span>(u128, <span class="string">"a `u128`."</span>, U128Deserializer, visit_u128); |
| } |
| |
| <span class="doccomment">/// A deserializer holding a `u32`. |
| </span><span class="kw">pub struct </span>U32Deserializer<E> { |
| value: u32, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(U32Deserializer); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>u32 |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = U32Deserializer<E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> U32Deserializer<E> { |
| U32Deserializer::new(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><E> U32Deserializer<E> { |
| <span class="attribute">#[allow(missing_docs)] |
| </span><span class="kw">pub fn </span>new(value: u32) -> <span class="self">Self </span>{ |
| U32Deserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>U32Deserializer<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_u32(<span class="self">self</span>.value) |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span>str, |
| variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let _ </span>= name; |
| <span class="kw">let _ </span>= variants; |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>U32Deserializer<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| <span class="kw">type </span>Variant = private::UnitOnly<E>; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(<span class="self">self</span>).map(private::unit_only) |
| } |
| } |
| |
| <span class="kw">impl</span><E> Debug <span class="kw">for </span>U32Deserializer<E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"U32Deserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `&str`. |
| </span><span class="kw">pub struct </span>StrDeserializer<<span class="lifetime">'a</span>, E> { |
| value: <span class="kw-2">&</span><span class="lifetime">'a </span>str, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(StrDeserializer<<span class="lifetime">'de</span>>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>str |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = StrDeserializer<<span class="lifetime">'a</span>, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> StrDeserializer<<span class="lifetime">'a</span>, E> { |
| StrDeserializer::new(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, E> StrDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="attribute">#[allow(missing_docs)] |
| </span><span class="kw">pub fn </span>new(value: <span class="kw-2">&</span><span class="lifetime">'a </span>str) -> <span class="self">Self </span>{ |
| StrDeserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>StrDeserializer<<span class="lifetime">'a</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_str(<span class="self">self</span>.value) |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span>str, |
| variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let _ </span>= name; |
| <span class="kw">let _ </span>= variants; |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>StrDeserializer<<span class="lifetime">'a</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| <span class="kw">type </span>Variant = private::UnitOnly<E>; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(<span class="self">self</span>).map(private::unit_only) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, E> Debug <span class="kw">for </span>StrDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"StrDeserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `&str` with a lifetime tied to another |
| /// deserializer. |
| </span><span class="kw">pub struct </span>BorrowedStrDeserializer<<span class="lifetime">'de</span>, E> { |
| value: <span class="kw-2">&</span><span class="lifetime">'de </span>str, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(BorrowedStrDeserializer<<span class="lifetime">'de</span>>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> BorrowedStrDeserializer<<span class="lifetime">'de</span>, E> { |
| <span class="doccomment">/// Create a new borrowed deserializer from the given string. |
| </span><span class="kw">pub fn </span>new(value: <span class="kw-2">&</span><span class="lifetime">'de </span>str) -> BorrowedStrDeserializer<<span class="lifetime">'de</span>, E> { |
| BorrowedStrDeserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>BorrowedStrDeserializer<<span class="lifetime">'de</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_borrowed_str(<span class="self">self</span>.value) |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span>str, |
| variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let _ </span>= name; |
| <span class="kw">let _ </span>= variants; |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>BorrowedStrDeserializer<<span class="lifetime">'de</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| <span class="kw">type </span>Variant = private::UnitOnly<E>; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(<span class="self">self</span>).map(private::unit_only) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> Debug <span class="kw">for </span>BorrowedStrDeserializer<<span class="lifetime">'de</span>, E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"BorrowedStrDeserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `String`. |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">pub struct </span>StringDeserializer<E> { |
| value: String, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><E> Clone <span class="kw">for </span>StringDeserializer<E> { |
| <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| StringDeserializer { |
| value: <span class="self">self</span>.value.clone(), |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>String |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = StringDeserializer<E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> StringDeserializer<E> { |
| StringDeserializer::new(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><E> StringDeserializer<E> { |
| <span class="attribute">#[allow(missing_docs)] |
| </span><span class="kw">pub fn </span>new(value: String) -> <span class="self">Self </span>{ |
| StringDeserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>StringDeserializer<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_string(<span class="self">self</span>.value) |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span>str, |
| variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let _ </span>= name; |
| <span class="kw">let _ </span>= variants; |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>StringDeserializer<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| <span class="kw">type </span>Variant = private::UnitOnly<E>; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(<span class="self">self</span>).map(private::unit_only) |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><E> Debug <span class="kw">for </span>StringDeserializer<E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"StringDeserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `Cow<str>`. |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">pub struct </span>CowStrDeserializer<<span class="lifetime">'a</span>, E> { |
| value: Cow<<span class="lifetime">'a</span>, str>, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, E> Clone <span class="kw">for </span>CowStrDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| CowStrDeserializer { |
| value: <span class="self">self</span>.value.clone(), |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>Cow<<span class="lifetime">'a</span>, str> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = CowStrDeserializer<<span class="lifetime">'a</span>, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> CowStrDeserializer<<span class="lifetime">'a</span>, E> { |
| CowStrDeserializer::new(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, E> CowStrDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="attribute">#[allow(missing_docs)] |
| </span><span class="kw">pub fn </span>new(value: Cow<<span class="lifetime">'a</span>, str>) -> <span class="self">Self </span>{ |
| CowStrDeserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>CowStrDeserializer<<span class="lifetime">'a</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.value { |
| Cow::Borrowed(string) => visitor.visit_str(string), |
| Cow::Owned(string) => visitor.visit_string(string), |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| name: <span class="kw-2">&</span>str, |
| variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let _ </span>= name; |
| <span class="kw">let _ </span>= variants; |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>CowStrDeserializer<<span class="lifetime">'a</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| <span class="kw">type </span>Variant = private::UnitOnly<E>; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| seed.deserialize(<span class="self">self</span>).map(private::unit_only) |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'a</span>, E> Debug <span class="kw">for </span>CowStrDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"CowStrDeserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `&[u8]`. Always calls [`Visitor::visit_bytes`]. |
| </span><span class="kw">pub struct </span>BytesDeserializer<<span class="lifetime">'a</span>, E> { |
| value: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8], |
| marker: PhantomData<E>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, E> BytesDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="doccomment">/// Create a new deserializer from the given bytes. |
| </span><span class="kw">pub fn </span>new(value: <span class="kw-2">&</span><span class="lifetime">'a </span>[u8]) -> <span class="self">Self </span>{ |
| BytesDeserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(BytesDeserializer<<span class="lifetime">'a</span>>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span><span class="kw-2">&</span><span class="lifetime">'a </span>[u8] |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = BytesDeserializer<<span class="lifetime">'a</span>, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> BytesDeserializer<<span class="lifetime">'a</span>, E> { |
| BytesDeserializer::new(<span class="self">self</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, <span class="lifetime">'a</span>, E> Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>BytesDeserializer<<span class="lifetime">'a</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_bytes(<span class="self">self</span>.value) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, E> Debug <span class="kw">for </span>BytesDeserializer<<span class="lifetime">'a</span>, E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"BytesDeserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="doccomment">/// A deserializer holding a `&[u8]` with a lifetime tied to another |
| /// deserializer. Always calls [`Visitor::visit_borrowed_bytes`]. |
| </span><span class="kw">pub struct </span>BorrowedBytesDeserializer<<span class="lifetime">'de</span>, E> { |
| value: <span class="kw-2">&</span><span class="lifetime">'de </span>[u8], |
| marker: PhantomData<E>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> BorrowedBytesDeserializer<<span class="lifetime">'de</span>, E> { |
| <span class="doccomment">/// Create a new borrowed deserializer from the given borrowed bytes. |
| </span><span class="kw">pub fn </span>new(value: <span class="kw-2">&</span><span class="lifetime">'de </span>[u8]) -> <span class="self">Self </span>{ |
| BorrowedBytesDeserializer { |
| value: value, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="macro">impl_copy_clone!</span>(BorrowedBytesDeserializer<<span class="lifetime">'de</span>>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>BorrowedBytesDeserializer<<span class="lifetime">'de</span>, E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_borrowed_bytes(<span class="self">self</span>.value) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> Debug <span class="kw">for </span>BorrowedBytesDeserializer<<span class="lifetime">'de</span>, E> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"BorrowedBytesDeserializer"</span>) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer that iterates over a sequence. |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>SeqDeserializer<I, E> { |
| iter: iter::Fuse<I>, |
| count: usize, |
| marker: PhantomData<E>, |
| } |
| |
| <span class="kw">impl</span><I, E> SeqDeserializer<I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| { |
| <span class="doccomment">/// Construct a new `SeqDeserializer<I, E>`. |
| </span><span class="kw">pub fn </span>new(iter: I) -> <span class="self">Self </span>{ |
| SeqDeserializer { |
| iter: iter.fuse(), |
| count: <span class="number">0</span>, |
| marker: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><I, E> SeqDeserializer<I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| E: de::Error, |
| { |
| <span class="doccomment">/// Check for remaining elements after passing a `SeqDeserializer` to |
| /// `Visitor::visit_seq`. |
| </span><span class="kw">pub fn </span>end(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), E> { |
| <span class="kw">let </span>remaining = <span class="self">self</span>.iter.count(); |
| <span class="kw">if </span>remaining == <span class="number">0 </span>{ |
| <span class="prelude-val">Ok</span>(()) |
| } <span class="kw">else </span>{ |
| <span class="comment">// First argument is the number of elements in the data, second |
| // argument is the number of elements expected by the Deserialize. |
| </span><span class="prelude-val">Err</span>(de::Error::invalid_length( |
| <span class="self">self</span>.count + remaining, |
| <span class="kw-2">&</span>ExpectedInSeq(<span class="self">self</span>.count), |
| )) |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, T, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>SeqDeserializer<I, E> |
| <span class="kw">where |
| </span>I: Iterator<Item = T>, |
| T: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="kw-2">mut </span><span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>v = <span class="macro">try!</span>(visitor.visit_seq(<span class="kw-2">&mut </span><span class="self">self</span>)); |
| <span class="macro">try!</span>(<span class="self">self</span>.end()); |
| <span class="prelude-val">Ok</span>(v) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, T, E> de::SeqAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>SeqDeserializer<I, E> |
| <span class="kw">where |
| </span>I: Iterator<Item = T>, |
| T: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>next_element_seed<V>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: V) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><V::Value>, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>(value) => { |
| <span class="self">self</span>.count += <span class="number">1</span>; |
| seed.deserialize(value.into_deserializer()).map(<span class="prelude-val">Some</span>) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| size_hint::from_bounds(<span class="kw-2">&</span><span class="self">self</span>.iter) |
| } |
| } |
| |
| <span class="kw">struct </span>ExpectedInSeq(usize); |
| |
| <span class="kw">impl </span>Expected <span class="kw">for </span>ExpectedInSeq { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">if </span><span class="self">self</span>.<span class="number">0 </span>== <span class="number">1 </span>{ |
| <span class="macro">write!</span>(formatter, <span class="string">"1 element in sequence"</span>) |
| } <span class="kw">else </span>{ |
| <span class="macro">write!</span>(formatter, <span class="string">"{} elements in sequence"</span>, <span class="self">self</span>.<span class="number">0</span>) |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><I, E> Debug <span class="kw">for </span>SeqDeserializer<I, E> |
| <span class="kw">where |
| </span>I: Debug, |
| { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"SeqDeserializer"</span>) |
| .field(<span class="string">"iter"</span>, <span class="kw-2">&</span><span class="self">self</span>.iter) |
| .field(<span class="string">"count"</span>, <span class="kw-2">&</span><span class="self">self</span>.count) |
| .finish() |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, T, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>Vec<T> |
| <span class="kw">where |
| </span>T: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = SeqDeserializer<<<span class="self">Self </span><span class="kw">as </span>IntoIterator>::IntoIter, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| SeqDeserializer::new(<span class="self">self</span>.into_iter()) |
| } |
| } |
| |
| <span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, T, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>BTreeSet<T> |
| <span class="kw">where |
| </span>T: IntoDeserializer<<span class="lifetime">'de</span>, E> + Eq + Ord, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = SeqDeserializer<<<span class="self">Self </span><span class="kw">as </span>IntoIterator>::IntoIter, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| SeqDeserializer::new(<span class="self">self</span>.into_iter()) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, T, S, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>HashSet<T, S> |
| <span class="kw">where |
| </span>T: IntoDeserializer<<span class="lifetime">'de</span>, E> + Eq + Hash, |
| S: BuildHasher, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = SeqDeserializer<<<span class="self">Self </span><span class="kw">as </span>IntoIterator>::IntoIter, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| SeqDeserializer::new(<span class="self">self</span>.into_iter()) |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `SeqAccess`. |
| </span><span class="attribute">#[derive(Clone, Debug)] |
| </span><span class="kw">pub struct </span>SeqAccessDeserializer<A> { |
| seq: A, |
| } |
| |
| <span class="kw">impl</span><A> SeqAccessDeserializer<A> { |
| <span class="doccomment">/// Construct a new `SeqAccessDeserializer<A>`. |
| </span><span class="kw">pub fn </span>new(seq: A) -> <span class="self">Self </span>{ |
| SeqAccessDeserializer { seq: seq } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>SeqAccessDeserializer<A> |
| <span class="kw">where |
| </span>A: de::SeqAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Error = A::Error; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_seq(<span class="self">self</span>.seq) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer that iterates over a map. |
| </span><span class="kw">pub struct </span>MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| { |
| iter: iter::Fuse<I>, |
| value: <span class="prelude-ty">Option</span><Second<I::Item>>, |
| count: usize, |
| lifetime: PhantomData<<span class="kw-2">&</span><span class="lifetime">'de </span>()>, |
| error: PhantomData<E>, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| { |
| <span class="doccomment">/// Construct a new `MapDeserializer<I, E>`. |
| </span><span class="kw">pub fn </span>new(iter: I) -> <span class="self">Self </span>{ |
| MapDeserializer { |
| iter: iter.fuse(), |
| value: <span class="prelude-val">None</span>, |
| count: <span class="number">0</span>, |
| lifetime: PhantomData, |
| error: PhantomData, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| E: de::Error, |
| { |
| <span class="doccomment">/// Check for remaining elements after passing a `MapDeserializer` to |
| /// `Visitor::visit_map`. |
| </span><span class="kw">pub fn </span>end(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), E> { |
| <span class="kw">let </span>remaining = <span class="self">self</span>.iter.count(); |
| <span class="kw">if </span>remaining == <span class="number">0 </span>{ |
| <span class="prelude-val">Ok</span>(()) |
| } <span class="kw">else </span>{ |
| <span class="comment">// First argument is the number of elements in the data, second |
| // argument is the number of elements expected by the Deserialize. |
| </span><span class="prelude-val">Err</span>(de::Error::invalid_length( |
| <span class="self">self</span>.count + remaining, |
| <span class="kw-2">&</span>ExpectedInMap(<span class="self">self</span>.count), |
| )) |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| { |
| <span class="kw">fn </span>next_pair(<span class="kw-2">&mut </span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><(First<I::Item>, Second<I::Item>)> { |
| <span class="kw">match </span><span class="self">self</span>.iter.next() { |
| <span class="prelude-val">Some</span>(kv) => { |
| <span class="self">self</span>.count += <span class="number">1</span>; |
| <span class="prelude-val">Some</span>(private::Pair::split(kv)) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">None</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| First<I::Item>: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| Second<I::Item>: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="kw-2">mut </span><span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>value = <span class="macro">try!</span>(visitor.visit_map(<span class="kw-2">&mut </span><span class="self">self</span>)); |
| <span class="macro">try!</span>(<span class="self">self</span>.end()); |
| <span class="prelude-val">Ok</span>(value) |
| } |
| |
| <span class="kw">fn </span>deserialize_seq<V>(<span class="kw-2">mut </span><span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>value = <span class="macro">try!</span>(visitor.visit_seq(<span class="kw-2">&mut </span><span class="self">self</span>)); |
| <span class="macro">try!</span>(<span class="self">self</span>.end()); |
| <span class="prelude-val">Ok</span>(value) |
| } |
| |
| <span class="kw">fn </span>deserialize_tuple<V>(<span class="self">self</span>, len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let _ </span>= len; |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct tuple_struct map |
| <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> de::MapAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| First<I::Item>: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| Second<I::Item>: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>next_key_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.next_pair() { |
| <span class="prelude-val">Some</span>((key, value)) => { |
| <span class="self">self</span>.value = <span class="prelude-val">Some</span>(value); |
| seed.deserialize(key.into_deserializer()).map(<span class="prelude-val">Some</span>) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>next_value_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span>value = <span class="self">self</span>.value.take(); |
| <span class="comment">// Panic because this indicates a bug in the program rather than an |
| // expected failure. |
| </span><span class="kw">let </span>value = value.expect(<span class="string">"MapAccess::next_value called before next_key"</span>); |
| seed.deserialize(value.into_deserializer()) |
| } |
| |
| <span class="kw">fn </span>next_entry_seed<TK, TV>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| kseed: TK, |
| vseed: TV, |
| ) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><(TK::Value, TV::Value)>, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>TK: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| TV: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.next_pair() { |
| <span class="prelude-val">Some</span>((key, value)) => { |
| <span class="kw">let </span>key = <span class="macro">try!</span>(kseed.deserialize(key.into_deserializer())); |
| <span class="kw">let </span>value = <span class="macro">try!</span>(vseed.deserialize(value.into_deserializer())); |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>((key, value))) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| size_hint::from_bounds(<span class="kw-2">&</span><span class="self">self</span>.iter) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> de::SeqAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator, |
| I::Item: private::Pair, |
| First<I::Item>: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| Second<I::Item>: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>next_element_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="self">self</span>.next_pair() { |
| <span class="prelude-val">Some</span>((k, v)) => { |
| <span class="kw">let </span>de = PairDeserializer(k, v, PhantomData); |
| seed.deserialize(de).map(<span class="prelude-val">Some</span>) |
| } |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| size_hint::from_bounds(<span class="kw-2">&</span><span class="self">self</span>.iter) |
| } |
| } |
| |
| <span class="comment">// Cannot #[derive(Clone)] because of the bound `Second<I::Item>: Clone`. |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> Clone <span class="kw">for </span>MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator + Clone, |
| I::Item: private::Pair, |
| Second<I::Item>: Clone, |
| { |
| <span class="kw">fn </span>clone(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="self">Self </span>{ |
| MapDeserializer { |
| iter: <span class="self">self</span>.iter.clone(), |
| value: <span class="self">self</span>.value.clone(), |
| count: <span class="self">self</span>.count, |
| lifetime: <span class="self">self</span>.lifetime, |
| error: <span class="self">self</span>.error, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, I, E> Debug <span class="kw">for </span>MapDeserializer<<span class="lifetime">'de</span>, I, E> |
| <span class="kw">where |
| </span>I: Iterator + Debug, |
| I::Item: private::Pair, |
| Second<I::Item>: Debug, |
| { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| formatter |
| .debug_struct(<span class="string">"MapDeserializer"</span>) |
| .field(<span class="string">"iter"</span>, <span class="kw-2">&</span><span class="self">self</span>.iter) |
| .field(<span class="string">"value"</span>, <span class="kw-2">&</span><span class="self">self</span>.value) |
| .field(<span class="string">"count"</span>, <span class="kw-2">&</span><span class="self">self</span>.count) |
| .finish() |
| } |
| } |
| |
| <span class="comment">// Used in the `impl SeqAccess for MapDeserializer` to visit the map as a |
| // sequence of pairs. |
| </span><span class="kw">struct </span>PairDeserializer<A, B, E>(A, B, PhantomData<E>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A, B, E> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>PairDeserializer<A, B, E> |
| <span class="kw">where |
| </span>A: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| B: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct tuple_struct map |
| <span class="kw">struct enum </span>identifier ignored_any |
| } |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } |
| |
| <span class="kw">fn </span>deserialize_seq<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>pair_visitor = PairVisitor(<span class="prelude-val">Some</span>(<span class="self">self</span>.<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="self">self</span>.<span class="number">1</span>), PhantomData); |
| <span class="kw">let </span>pair = <span class="macro">try!</span>(visitor.visit_seq(<span class="kw-2">&mut </span>pair_visitor)); |
| <span class="kw">if </span>pair_visitor.<span class="number">1</span>.is_none() { |
| <span class="prelude-val">Ok</span>(pair) |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>remaining = pair_visitor.size_hint().unwrap(); |
| <span class="comment">// First argument is the number of elements in the data, second |
| // argument is the number of elements expected by the Deserialize. |
| </span><span class="prelude-val">Err</span>(de::Error::invalid_length(<span class="number">2</span>, <span class="kw-2">&</span>ExpectedInSeq(<span class="number">2 </span>- remaining))) |
| } |
| } |
| |
| <span class="kw">fn </span>deserialize_tuple<V>(<span class="self">self</span>, len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if </span>len == <span class="number">2 </span>{ |
| <span class="self">self</span>.deserialize_seq(visitor) |
| } <span class="kw">else </span>{ |
| <span class="comment">// First argument is the number of elements in the data, second |
| // argument is the number of elements expected by the Deserialize. |
| </span><span class="prelude-val">Err</span>(de::Error::invalid_length(<span class="number">2</span>, <span class="kw-2">&</span>ExpectedInSeq(len))) |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>PairVisitor<A, B, E>(<span class="prelude-ty">Option</span><A>, <span class="prelude-ty">Option</span><B>, PhantomData<E>); |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A, B, E> de::SeqAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>PairVisitor<A, B, E> |
| <span class="kw">where |
| </span>A: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| B: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>next_element_seed<T>(<span class="kw-2">&mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><T::Value>, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">if let </span><span class="prelude-val">Some</span>(k) = <span class="self">self</span>.<span class="number">0</span>.take() { |
| seed.deserialize(k.into_deserializer()).map(<span class="prelude-val">Some</span>) |
| } <span class="kw">else if let </span><span class="prelude-val">Some</span>(v) = <span class="self">self</span>.<span class="number">1</span>.take() { |
| seed.deserialize(v.into_deserializer()).map(<span class="prelude-val">Some</span>) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>) |
| } |
| } |
| |
| <span class="kw">fn </span>size_hint(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><usize> { |
| <span class="kw">if </span><span class="self">self</span>.<span class="number">0</span>.is_some() { |
| <span class="prelude-val">Some</span>(<span class="number">2</span>) |
| } <span class="kw">else if </span><span class="self">self</span>.<span class="number">1</span>.is_some() { |
| <span class="prelude-val">Some</span>(<span class="number">1</span>) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Some</span>(<span class="number">0</span>) |
| } |
| } |
| } |
| |
| <span class="kw">struct </span>ExpectedInMap(usize); |
| |
| <span class="kw">impl </span>Expected <span class="kw">for </span>ExpectedInMap { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, formatter: <span class="kw-2">&mut </span>fmt::Formatter) -> fmt::Result { |
| <span class="kw">if </span><span class="self">self</span>.<span class="number">0 </span>== <span class="number">1 </span>{ |
| <span class="macro">write!</span>(formatter, <span class="string">"1 element in map"</span>) |
| } <span class="kw">else </span>{ |
| <span class="macro">write!</span>(formatter, <span class="string">"{} elements in map"</span>, <span class="self">self</span>.<span class="number">0</span>) |
| } |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="attribute">#[cfg(any(feature = <span class="string">"std"</span>, feature = <span class="string">"alloc"</span>))] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, K, V, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>BTreeMap<K, V> |
| <span class="kw">where |
| </span>K: IntoDeserializer<<span class="lifetime">'de</span>, E> + Eq + Ord, |
| V: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = MapDeserializer<<span class="lifetime">'de</span>, <<span class="self">Self </span><span class="kw">as </span>IntoIterator>::IntoIter, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| MapDeserializer::new(<span class="self">self</span>.into_iter()) |
| } |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"std"</span>)] |
| </span><span class="kw">impl</span><<span class="lifetime">'de</span>, K, V, S, E> IntoDeserializer<<span class="lifetime">'de</span>, E> <span class="kw">for </span>HashMap<K, V, S> |
| <span class="kw">where |
| </span>K: IntoDeserializer<<span class="lifetime">'de</span>, E> + Eq + Hash, |
| V: IntoDeserializer<<span class="lifetime">'de</span>, E>, |
| S: BuildHasher, |
| E: de::Error, |
| { |
| <span class="kw">type </span>Deserializer = MapDeserializer<<span class="lifetime">'de</span>, <<span class="self">Self </span><span class="kw">as </span>IntoIterator>::IntoIter, E>; |
| |
| <span class="kw">fn </span>into_deserializer(<span class="self">self</span>) -> <span class="self">Self</span>::Deserializer { |
| MapDeserializer::new(<span class="self">self</span>.into_iter()) |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding a `MapAccess`. |
| </span><span class="attribute">#[derive(Clone, Debug)] |
| </span><span class="kw">pub struct </span>MapAccessDeserializer<A> { |
| map: A, |
| } |
| |
| <span class="kw">impl</span><A> MapAccessDeserializer<A> { |
| <span class="doccomment">/// Construct a new `MapAccessDeserializer<A>`. |
| </span><span class="kw">pub fn </span>new(map: A) -> <span class="self">Self </span>{ |
| MapAccessDeserializer { map: map } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>MapAccessDeserializer<A> |
| <span class="kw">where |
| </span>A: de::MapAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Error = A::Error; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_map(<span class="self">self</span>.map) |
| } |
| |
| <span class="kw">fn </span>deserialize_enum<V>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span>str, |
| _variants: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_enum(<span class="self">self</span>) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct </span>identifier ignored_any |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A> de::EnumAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapAccessDeserializer<A> |
| <span class="kw">where |
| </span>A: de::MapAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Error = A::Error; |
| <span class="kw">type </span>Variant = private::MapAsEnum<A>; |
| |
| <span class="kw">fn </span>variant_seed<T>(<span class="kw-2">mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><(T::Value, <span class="self">Self</span>::Variant), <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">match </span><span class="macro">try!</span>(<span class="self">self</span>.map.next_key_seed(seed)) { |
| <span class="prelude-val">Some</span>(key) => <span class="prelude-val">Ok</span>((key, private::map_as_enum(<span class="self">self</span>.map))), |
| <span class="prelude-val">None </span>=> <span class="prelude-val">Err</span>(de::Error::invalid_type(de::Unexpected::Map, <span class="kw-2">&</span><span class="string">"enum"</span>)), |
| } |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="doccomment">/// A deserializer holding an `EnumAccess`. |
| </span><span class="attribute">#[derive(Clone, Debug)] |
| </span><span class="kw">pub struct </span>EnumAccessDeserializer<A> { |
| access: A, |
| } |
| |
| <span class="kw">impl</span><A> EnumAccessDeserializer<A> { |
| <span class="doccomment">/// Construct a new `EnumAccessDeserializer<A>`. |
| </span><span class="kw">pub fn </span>new(access: A) -> <span class="self">Self </span>{ |
| EnumAccessDeserializer { access: access } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A> de::Deserializer<<span class="lifetime">'de</span>> <span class="kw">for </span>EnumAccessDeserializer<A> |
| <span class="kw">where |
| </span>A: de::EnumAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Error = A::Error; |
| |
| <span class="kw">fn </span>deserialize_any<V>(<span class="self">self</span>, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| visitor.visit_enum(<span class="self">self</span>.access) |
| } |
| |
| <span class="macro">forward_to_deserialize_any! </span>{ |
| bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string |
| bytes byte_buf option unit unit_struct newtype_struct seq tuple |
| tuple_struct map <span class="kw">struct enum </span>identifier ignored_any |
| } |
| } |
| |
| <span class="comment">//////////////////////////////////////////////////////////////////////////////// |
| |
| </span><span class="kw">mod </span>private { |
| <span class="kw">use </span>lib::<span class="kw-2">*</span>; |
| |
| <span class="kw">use </span>de::{<span class="self">self</span>, DeserializeSeed, Deserializer, MapAccess, Unexpected, VariantAccess, Visitor}; |
| |
| <span class="kw">pub struct </span>UnitOnly<E> { |
| marker: PhantomData<E>, |
| } |
| |
| <span class="kw">pub fn </span>unit_only<T, E>(t: T) -> (T, UnitOnly<E>) { |
| ( |
| t, |
| UnitOnly { |
| marker: PhantomData, |
| }, |
| ) |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, E> de::VariantAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>UnitOnly<E> |
| <span class="kw">where |
| </span>E: de::Error, |
| { |
| <span class="kw">type </span>Error = E; |
| |
| <span class="kw">fn </span>unit_variant(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), <span class="self">Self</span>::Error> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>newtype_variant_seed<T>(<span class="self">self</span>, _seed: T) -> <span class="prelude-ty">Result</span><T::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: de::DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="prelude-val">Err</span>(de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"newtype variant"</span>, |
| )) |
| } |
| |
| <span class="kw">fn </span>tuple_variant<V>(<span class="self">self</span>, _len: usize, _visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="prelude-val">Err</span>(de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"tuple variant"</span>, |
| )) |
| } |
| |
| <span class="kw">fn </span>struct_variant<V>( |
| <span class="self">self</span>, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| _visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: de::Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="prelude-val">Err</span>(de::Error::invalid_type( |
| Unexpected::UnitVariant, |
| <span class="kw-2">&</span><span class="string">"struct variant"</span>, |
| )) |
| } |
| } |
| |
| <span class="kw">pub struct </span>MapAsEnum<A> { |
| map: A, |
| } |
| |
| <span class="kw">pub fn </span>map_as_enum<A>(map: A) -> MapAsEnum<A> { |
| MapAsEnum { map: map } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, A> VariantAccess<<span class="lifetime">'de</span>> <span class="kw">for </span>MapAsEnum<A> |
| <span class="kw">where |
| </span>A: MapAccess<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Error = A::Error; |
| |
| <span class="kw">fn </span>unit_variant(<span class="kw-2">mut </span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), <span class="self">Self</span>::Error> { |
| <span class="self">self</span>.map.next_value() |
| } |
| |
| <span class="kw">fn </span>newtype_variant_seed<T>(<span class="kw-2">mut </span><span class="self">self</span>, seed: T) -> <span class="prelude-ty">Result</span><T::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>T: DeserializeSeed<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.map.next_value_seed(seed) |
| } |
| |
| <span class="kw">fn </span>tuple_variant<V>(<span class="kw-2">mut </span><span class="self">self</span>, len: usize, visitor: V) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.map.next_value_seed(SeedTupleVariant { |
| len: len, |
| visitor: visitor, |
| }) |
| } |
| |
| <span class="kw">fn </span>struct_variant<V>( |
| <span class="kw-2">mut </span><span class="self">self</span>, |
| _fields: <span class="kw-2">&</span><span class="lifetime">'static </span>[<span class="kw-2">&</span><span class="lifetime">'static </span>str], |
| visitor: V, |
| ) -> <span class="prelude-ty">Result</span><V::Value, <span class="self">Self</span>::Error> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="self">self</span>.map |
| .next_value_seed(SeedStructVariant { visitor: visitor }) |
| } |
| } |
| |
| <span class="kw">struct </span>SeedTupleVariant<V> { |
| len: usize, |
| visitor: V, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, V> DeserializeSeed<<span class="lifetime">'de</span>> <span class="kw">for </span>SeedTupleVariant<V> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Value = V::Value; |
| |
| <span class="kw">fn </span>deserialize<D>(<span class="self">self</span>, deserializer: D) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, D::Error> |
| <span class="kw">where |
| </span>D: Deserializer<<span class="lifetime">'de</span>>, |
| { |
| deserializer.deserialize_tuple(<span class="self">self</span>.len, <span class="self">self</span>.visitor) |
| } |
| } |
| |
| <span class="kw">struct </span>SeedStructVariant<V> { |
| visitor: V, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'de</span>, V> DeserializeSeed<<span class="lifetime">'de</span>> <span class="kw">for </span>SeedStructVariant<V> |
| <span class="kw">where |
| </span>V: Visitor<<span class="lifetime">'de</span>>, |
| { |
| <span class="kw">type </span>Value = V::Value; |
| |
| <span class="kw">fn </span>deserialize<D>(<span class="self">self</span>, deserializer: D) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::Value, D::Error> |
| <span class="kw">where |
| </span>D: Deserializer<<span class="lifetime">'de</span>>, |
| { |
| deserializer.deserialize_map(<span class="self">self</span>.visitor) |
| } |
| } |
| |
| <span class="doccomment">/// Avoid having to restate the generic types on `MapDeserializer`. The |
| /// `Iterator::Item` contains enough information to figure out K and V. |
| </span><span class="kw">pub trait </span>Pair { |
| <span class="kw">type </span>First; |
| <span class="kw">type </span>Second; |
| <span class="kw">fn </span>split(<span class="self">self</span>) -> (<span class="self">Self</span>::First, <span class="self">Self</span>::Second); |
| } |
| |
| <span class="kw">impl</span><A, B> Pair <span class="kw">for </span>(A, B) { |
| <span class="kw">type </span>First = A; |
| <span class="kw">type </span>Second = B; |
| <span class="kw">fn </span>split(<span class="self">self</span>) -> (A, B) { |
| <span class="self">self |
| </span>} |
| } |
| |
| <span class="kw">pub type </span>First<T> = <T <span class="kw">as </span>Pair>::First; |
| <span class="kw">pub type </span>Second<T> = <T <span class="kw">as </span>Pair>::Second; |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="serde" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
