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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/serde_urlencoded-0.7.1/src/ser/key.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>key.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::part::Sink;
<span class="kw">use </span><span class="kw">crate</span>::ser::Error;
<span class="kw">use </span>serde::Serialize;
<span class="kw">use </span>std::borrow::Cow;
<span class="kw">use </span>std::ops::Deref;
<span class="kw">pub enum </span>Key&lt;<span class="lifetime">&#39;key</span>&gt; {
Static(<span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>str),
Dynamic(Cow&lt;<span class="lifetime">&#39;key</span>, str&gt;),
}
<span class="kw">impl</span>&lt;<span class="lifetime">&#39;key</span>&gt; Deref <span class="kw">for </span>Key&lt;<span class="lifetime">&#39;key</span>&gt; {
<span class="kw">type </span>Target = str;
<span class="kw">fn </span>deref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>str {
<span class="kw">match </span><span class="kw-2">*</span><span class="self">self </span>{
Key::Static(key) =&gt; key,
Key::Dynamic(<span class="kw-2">ref </span>key) =&gt; key,
}
}
}
<span class="kw">impl</span>&lt;<span class="lifetime">&#39;key</span>&gt; From&lt;Key&lt;<span class="lifetime">&#39;key</span>&gt;&gt; <span class="kw">for </span>Cow&lt;<span class="lifetime">&#39;static</span>, str&gt; {
<span class="kw">fn </span>from(key: Key&lt;<span class="lifetime">&#39;key</span>&gt;) -&gt; <span class="self">Self </span>{
<span class="kw">match </span>key {
Key::Static(key) =&gt; key.into(),
Key::Dynamic(key) =&gt; key.into_owned().into(),
}
}
}
<span class="kw">pub struct </span>KeySink&lt;End&gt; {
end: End,
}
<span class="kw">impl</span>&lt;End, <span class="prelude-val">Ok</span>&gt; KeySink&lt;End&gt;
<span class="kw">where
</span>End: <span class="kw">for</span>&lt;<span class="lifetime">&#39;key</span>&gt; FnOnce(Key&lt;<span class="lifetime">&#39;key</span>&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt;,
{
<span class="kw">pub fn </span>new(end: End) -&gt; <span class="self">Self </span>{
KeySink { end }
}
}
<span class="kw">impl</span>&lt;End, <span class="prelude-val">Ok</span>&gt; Sink <span class="kw">for </span>KeySink&lt;End&gt;
<span class="kw">where
</span>End: <span class="kw">for</span>&lt;<span class="lifetime">&#39;key</span>&gt; FnOnce(Key&lt;<span class="lifetime">&#39;key</span>&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt;,
{
<span class="kw">type </span><span class="prelude-val">Ok </span>= <span class="prelude-val">Ok</span>;
<span class="kw">fn </span>serialize_static_str(<span class="self">self</span>, value: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>str) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt; {
(<span class="self">self</span>.end)(Key::Static(value))
}
<span class="kw">fn </span>serialize_str(<span class="self">self</span>, value: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt; {
(<span class="self">self</span>.end)(Key::Dynamic(value.into()))
}
<span class="kw">fn </span>serialize_string(<span class="self">self</span>, value: String) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt; {
(<span class="self">self</span>.end)(Key::Dynamic(value.into()))
}
<span class="kw">fn </span>serialize_none(<span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt; {
<span class="prelude-val">Err</span>(<span class="self">self</span>.unsupported())
}
<span class="kw">fn </span>serialize_some&lt;T: <span class="question-mark">?</span>Sized + Serialize&gt;(
<span class="self">self</span>,
_value: <span class="kw-2">&amp;</span>T,
) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="prelude-val">Ok</span>, Error&gt; {
<span class="prelude-val">Err</span>(<span class="self">self</span>.unsupported())
}
<span class="kw">fn </span>unsupported(<span class="self">self</span>) -&gt; Error {
Error::Custom(<span class="string">&quot;unsupported key&quot;</span>.into())
}
}
</code></pre></div>
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