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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/http-0.2.9/src/byte_str.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>byte_str.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="../../http/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="../../http/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>bytes::Bytes;
<span class="kw">use </span>std::{ops, str};
<span class="attribute">#[derive(Debug, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>ByteStr {
<span class="comment">// Invariant: bytes contains valid UTF-8
</span>bytes: Bytes,
}
<span class="kw">impl </span>ByteStr {
<span class="attribute">#[inline]
</span><span class="kw">pub fn </span>new() -&gt; ByteStr {
ByteStr {
<span class="comment">// Invariant: the empty slice is trivially valid UTF-8.
</span>bytes: Bytes::new(),
}
}
<span class="attribute">#[inline]
</span><span class="kw">pub const fn </span>from_static(val: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>str) -&gt; ByteStr {
ByteStr {
<span class="comment">// Invariant: val is a str so contains vaid UTF-8.
</span>bytes: Bytes::from_static(val.as_bytes()),
}
}
<span class="attribute">#[inline]
</span><span class="doccomment">/// ## Panics
/// In a debug build this will panic if `bytes` is not valid UTF-8.
///
/// ## Safety
/// `bytes` must contain valid UTF-8. In a release build it is undefined
/// behaviour to call this with `bytes` that is not valid UTF-8.
</span><span class="kw">pub unsafe fn </span>from_utf8_unchecked(bytes: Bytes) -&gt; ByteStr {
<span class="kw">if </span><span class="macro">cfg!</span>(debug_assertions) {
<span class="kw">match </span>str::from_utf8(<span class="kw-2">&amp;</span>bytes) {
<span class="prelude-val">Ok</span>(<span class="kw">_</span>) =&gt; (),
<span class="prelude-val">Err</span>(err) =&gt; <span class="macro">panic!</span>(
<span class="string">&quot;ByteStr::from_utf8_unchecked() with invalid bytes; error = {}, bytes = {:?}&quot;</span>,
err, bytes
),
}
}
<span class="comment">// Invariant: assumed by the safety requirements of this function.
</span>ByteStr { bytes: bytes }
}
}
<span class="kw">impl </span>ops::Deref <span class="kw">for </span>ByteStr {
<span class="kw">type </span>Target = str;
<span class="attribute">#[inline]
</span><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">let </span>b: <span class="kw-2">&amp;</span>[u8] = <span class="self">self</span>.bytes.as_ref();
<span class="comment">// Safety: the invariant of `bytes` is that it contains valid UTF-8.
</span><span class="kw">unsafe </span>{ str::from_utf8_unchecked(b) }
}
}
<span class="kw">impl </span>From&lt;String&gt; <span class="kw">for </span>ByteStr {
<span class="attribute">#[inline]
</span><span class="kw">fn </span>from(src: String) -&gt; ByteStr {
ByteStr {
<span class="comment">// Invariant: src is a String so contains valid UTF-8.
</span>bytes: Bytes::from(src),
}
}
}
<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>&gt; From&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>str&gt; <span class="kw">for </span>ByteStr {
<span class="attribute">#[inline]
</span><span class="kw">fn </span>from(src: <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>str) -&gt; ByteStr {
ByteStr {
<span class="comment">// Invariant: src is a str so contains valid UTF-8.
</span>bytes: Bytes::copy_from_slice(src.as_bytes()),
}
}
}
<span class="kw">impl </span>From&lt;ByteStr&gt; <span class="kw">for </span>Bytes {
<span class="kw">fn </span>from(src: ByteStr) -&gt; <span class="self">Self </span>{
src.bytes
}
}
</code></pre></div>
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