| <!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_urlencoded-0.7.1/src/ser/pair.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>pair.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_urlencoded/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_urlencoded/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="kw">use </span><span class="kw">crate</span>::ser::key::KeySink; |
| <span class="kw">use </span><span class="kw">crate</span>::ser::part::PartSerializer; |
| <span class="kw">use </span><span class="kw">crate</span>::ser::value::ValueSink; |
| <span class="kw">use </span><span class="kw">crate</span>::ser::Error; |
| <span class="kw">use </span>form_urlencoded::Serializer <span class="kw">as </span>UrlEncodedSerializer; |
| <span class="kw">use </span>form_urlencoded::Target <span class="kw">as </span>UrlEncodedTarget; |
| <span class="kw">use </span>serde::ser; |
| <span class="kw">use </span>std::borrow::Cow; |
| <span class="kw">use </span>std::mem; |
| |
| <span class="kw">pub struct </span>PairSerializer<<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target: UrlEncodedTarget> { |
| urlencoder: <span class="kw-2">&</span><span class="lifetime">'target </span><span class="kw-2">mut </span>UrlEncodedSerializer<<span class="lifetime">'input</span>, Target>, |
| state: PairState, |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target> PairSerializer<<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target> |
| <span class="kw">where |
| </span>Target: <span class="lifetime">'target </span>+ UrlEncodedTarget, |
| { |
| <span class="kw">pub fn </span>new( |
| urlencoder: <span class="kw-2">&</span><span class="lifetime">'target </span><span class="kw-2">mut </span>UrlEncodedSerializer<<span class="lifetime">'input</span>, Target>, |
| ) -> <span class="self">Self </span>{ |
| PairSerializer { |
| urlencoder, |
| state: PairState::WaitingForKey, |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target> ser::Serializer |
| <span class="kw">for </span>PairSerializer<<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target> |
| <span class="kw">where |
| </span>Target: <span class="lifetime">'target </span>+ UrlEncodedTarget, |
| { |
| <span class="kw">type </span><span class="prelude-val">Ok </span>= (); |
| <span class="kw">type </span>Error = Error; |
| <span class="kw">type </span>SerializeSeq = ser::Impossible<(), Error>; |
| <span class="kw">type </span>SerializeTuple = <span class="self">Self</span>; |
| <span class="kw">type </span>SerializeTupleStruct = ser::Impossible<(), Error>; |
| <span class="kw">type </span>SerializeTupleVariant = ser::Impossible<(), Error>; |
| <span class="kw">type </span>SerializeMap = ser::Impossible<(), Error>; |
| <span class="kw">type </span>SerializeStruct = ser::Impossible<(), Error>; |
| <span class="kw">type </span>SerializeStructVariant = ser::Impossible<(), Error>; |
| |
| <span class="kw">fn </span>serialize_bool(<span class="self">self</span>, _v: bool) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_i8(<span class="self">self</span>, _v: i8) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_i16(<span class="self">self</span>, _v: i16) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_i32(<span class="self">self</span>, _v: i32) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_i64(<span class="self">self</span>, _v: i64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_u8(<span class="self">self</span>, _v: u8) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_u16(<span class="self">self</span>, _v: u16) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_u32(<span class="self">self</span>, _v: u32) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_u64(<span class="self">self</span>, _v: u64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_f32(<span class="self">self</span>, _v: f32) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_f64(<span class="self">self</span>, _v: f64) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_char(<span class="self">self</span>, _v: char) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_str(<span class="self">self</span>, _value: <span class="kw-2">&</span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_bytes(<span class="self">self</span>, _value: <span class="kw-2">&</span>[u8]) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_unit(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_unit_struct(<span class="self">self</span>, _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_unit_variant( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _variant_index: u32, |
| _variant: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_newtype_struct<T: <span class="question-mark">?</span>Sized + ser::Serialize>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| value: <span class="kw-2">&</span>T, |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| value.serialize(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>serialize_newtype_variant<T: <span class="question-mark">?</span>Sized + ser::Serialize>( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _variant_index: u32, |
| _variant: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _value: <span class="kw-2">&</span>T, |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_none(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="kw">fn </span>serialize_some<T: <span class="question-mark">?</span>Sized + ser::Serialize>( |
| <span class="self">self</span>, |
| value: <span class="kw-2">&</span>T, |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| value.serialize(<span class="self">self</span>) |
| } |
| |
| <span class="kw">fn </span>serialize_seq( |
| <span class="self">self</span>, |
| _len: <span class="prelude-ty">Option</span><usize>, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::SerializeSeq, Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_tuple(<span class="self">self</span>, len: usize) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>, Error> { |
| <span class="kw">if </span>len == <span class="number">2 </span>{ |
| <span class="prelude-val">Ok</span>(<span class="self">self</span>) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| } |
| |
| <span class="kw">fn </span>serialize_tuple_struct( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _len: usize, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::SerializeTupleStruct, Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_tuple_variant( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _variant_index: u32, |
| _variant: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _len: usize, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::SerializeTupleVariant, Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_map( |
| <span class="self">self</span>, |
| _len: <span class="prelude-ty">Option</span><usize>, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::SerializeMap, Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_struct( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _len: usize, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::SerializeStruct, Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| |
| <span class="kw">fn </span>serialize_struct_variant( |
| <span class="self">self</span>, |
| _name: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _variant_index: u32, |
| _variant: <span class="kw-2">&</span><span class="lifetime">'static </span>str, |
| _len: usize, |
| ) -> <span class="prelude-ty">Result</span><<span class="self">Self</span>::SerializeStructVariant, Error> { |
| <span class="prelude-val">Err</span>(Error::unsupported_pair()) |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target> ser::SerializeTuple |
| <span class="kw">for </span>PairSerializer<<span class="lifetime">'input</span>, <span class="lifetime">'target</span>, Target> |
| <span class="kw">where |
| </span>Target: <span class="lifetime">'target </span>+ UrlEncodedTarget, |
| { |
| <span class="kw">type </span><span class="prelude-val">Ok </span>= (); |
| <span class="kw">type </span>Error = Error; |
| |
| <span class="kw">fn </span>serialize_element<T: <span class="question-mark">?</span>Sized + ser::Serialize>( |
| <span class="kw-2">&mut </span><span class="self">self</span>, |
| value: <span class="kw-2">&</span>T, |
| ) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">match </span>mem::replace(<span class="kw-2">&mut </span><span class="self">self</span>.state, PairState::Done) { |
| PairState::WaitingForKey => { |
| <span class="kw">let </span>key_sink = KeySink::new(|key| <span class="prelude-val">Ok</span>(key.into())); |
| <span class="kw">let </span>key_serializer = PartSerializer::new(key_sink); |
| <span class="self">self</span>.state = PairState::WaitingForValue { |
| key: value.serialize(key_serializer)<span class="question-mark">?</span>, |
| }; |
| <span class="prelude-val">Ok</span>(()) |
| } |
| PairState::WaitingForValue { key } => { |
| <span class="kw">let </span>result = { |
| <span class="kw">let </span>value_sink = ValueSink::new(<span class="self">self</span>.urlencoder, <span class="kw-2">&</span>key); |
| <span class="kw">let </span>value_serializer = PartSerializer::new(value_sink); |
| value.serialize(value_serializer) |
| }; |
| <span class="kw">if </span>result.is_ok() { |
| <span class="self">self</span>.state = PairState::Done; |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.state = PairState::WaitingForValue { key }; |
| } |
| result |
| } |
| PairState::Done => <span class="prelude-val">Err</span>(Error::done()), |
| } |
| } |
| |
| <span class="kw">fn </span>end(<span class="self">self</span>) -> <span class="prelude-ty">Result</span><(), Error> { |
| <span class="kw">if let </span>PairState::Done = <span class="self">self</span>.state { |
| <span class="prelude-val">Ok</span>(()) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">Err</span>(Error::not_done()) |
| } |
| } |
| } |
| |
| <span class="kw">enum </span>PairState { |
| WaitingForKey, |
| WaitingForValue { key: Cow<<span class="lifetime">'static</span>, str> }, |
| Done, |
| } |
| |
| <span class="kw">impl </span>Error { |
| <span class="kw">fn </span>done() -> <span class="self">Self </span>{ |
| Error::Custom(<span class="string">"this pair has already been serialized"</span>.into()) |
| } |
| |
| <span class="kw">fn </span>not_done() -> <span class="self">Self </span>{ |
| Error::Custom(<span class="string">"this pair has not yet been serialized"</span>.into()) |
| } |
| |
| <span class="kw">fn </span>unsupported_pair() -> <span class="self">Self </span>{ |
| Error::Custom(<span class="string">"unsupported pair"</span>.into()) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="serde_urlencoded" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |