| <!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/hyper-0.14.26/src/proto/h1/encode.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>encode.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="../../../../hyper/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="../../../../hyper/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>std::fmt; |
| <span class="kw">use </span>std::io::IoSlice; |
| |
| <span class="kw">use </span>bytes::buf::{Chain, Take}; |
| <span class="kw">use </span>bytes::Buf; |
| <span class="kw">use </span>tracing::trace; |
| |
| <span class="kw">use </span><span class="kw">super</span>::io::WriteBuf; |
| |
| <span class="kw">type </span>StaticBuf = <span class="kw-2">&</span><span class="lifetime">'static </span>[u8]; |
| |
| <span class="doccomment">/// Encoders to handle different Transfer-Encodings. |
| </span><span class="attribute">#[derive(Debug, Clone, PartialEq)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Encoder { |
| kind: Kind, |
| is_last: bool, |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>EncodedBuf<B> { |
| kind: BufKind<B>, |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>NotEof(u64); |
| |
| <span class="attribute">#[derive(Debug, PartialEq, Clone)] |
| </span><span class="kw">enum </span>Kind { |
| <span class="doccomment">/// An Encoder for when Transfer-Encoding includes `chunked`. |
| </span>Chunked, |
| <span class="doccomment">/// An Encoder for when Content-Length is set. |
| /// |
| /// Enforces that the body is not longer than the Content-Length header. |
| </span>Length(u64), |
| <span class="doccomment">/// An Encoder for when neither Content-Length nor Chunked encoding is set. |
| /// |
| /// This is mostly only used with HTTP/1.0 with a length. This kind requires |
| /// the connection to be closed when the body is finished. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span>CloseDelimited, |
| } |
| |
| <span class="attribute">#[derive(Debug)] |
| </span><span class="kw">enum </span>BufKind<B> { |
| Exact(B), |
| Limited(Take<B>), |
| Chunked(Chain<Chain<ChunkSize, B>, StaticBuf>), |
| ChunkedEnd(StaticBuf), |
| } |
| |
| <span class="kw">impl </span>Encoder { |
| <span class="kw">fn </span>new(kind: Kind) -> Encoder { |
| Encoder { |
| kind, |
| is_last: <span class="bool-val">false</span>, |
| } |
| } |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>chunked() -> Encoder { |
| Encoder::new(Kind::Chunked) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>length(len: u64) -> Encoder { |
| Encoder::new(Kind::Length(len)) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>close_delimited() -> Encoder { |
| Encoder::new(Kind::CloseDelimited) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_eof(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="macro">matches!</span>(<span class="self">self</span>.kind, Kind::Length(<span class="number">0</span>)) |
| } |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>set_last(<span class="kw-2">mut </span><span class="self">self</span>, is_last: bool) -> <span class="self">Self </span>{ |
| <span class="self">self</span>.is_last = is_last; |
| <span class="self">self |
| </span>} |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_last(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.is_last |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>is_close_delimited(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| <span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span>Kind::CloseDelimited => <span class="bool-val">true</span>, |
| <span class="kw">_ </span>=> <span class="bool-val">false</span>, |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>end<B>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Result</span><<span class="prelude-ty">Option</span><EncodedBuf<B>>, NotEof> { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Length(<span class="number">0</span>) => <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| Kind::Chunked => <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(EncodedBuf { |
| kind: BufKind::ChunkedEnd(<span class="string">b"0\r\n\r\n"</span>), |
| })), |
| <span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span>Kind::CloseDelimited => <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>), |
| Kind::Length(n) => <span class="prelude-val">Err</span>(NotEof(n)), |
| } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>encode<B>(<span class="kw-2">&mut </span><span class="self">self</span>, msg: B) -> EncodedBuf<B> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw">let </span>len = msg.remaining(); |
| <span class="macro">debug_assert!</span>(len > <span class="number">0</span>, <span class="string">"encode() called with empty buf"</span>); |
| |
| <span class="kw">let </span>kind = <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Chunked => { |
| <span class="macro">trace!</span>(<span class="string">"encoding chunked {}B"</span>, len); |
| <span class="kw">let </span>buf = ChunkSize::new(len) |
| .chain(msg) |
| .chain(<span class="string">b"\r\n" </span><span class="kw">as </span><span class="kw-2">&</span><span class="lifetime">'static </span>[u8]); |
| BufKind::Chunked(buf) |
| } |
| Kind::Length(<span class="kw-2">ref mut </span>remaining) => { |
| <span class="macro">trace!</span>(<span class="string">"sized write, len = {}"</span>, len); |
| <span class="kw">if </span>len <span class="kw">as </span>u64 > <span class="kw-2">*</span>remaining { |
| <span class="kw">let </span>limit = <span class="kw-2">*</span>remaining <span class="kw">as </span>usize; |
| <span class="kw-2">*</span>remaining = <span class="number">0</span>; |
| BufKind::Limited(msg.take(limit)) |
| } <span class="kw">else </span>{ |
| <span class="kw-2">*</span>remaining -= len <span class="kw">as </span>u64; |
| BufKind::Exact(msg) |
| } |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span>Kind::CloseDelimited => { |
| <span class="macro">trace!</span>(<span class="string">"close delimited write {}B"</span>, len); |
| BufKind::Exact(msg) |
| } |
| }; |
| EncodedBuf { kind } |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>encode_and_end<B>(<span class="kw-2">&</span><span class="self">self</span>, msg: B, dst: <span class="kw-2">&mut </span>WriteBuf<EncodedBuf<B>>) -> bool |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="kw">let </span>len = msg.remaining(); |
| <span class="macro">debug_assert!</span>(len > <span class="number">0</span>, <span class="string">"encode() called with empty buf"</span>); |
| |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Chunked => { |
| <span class="macro">trace!</span>(<span class="string">"encoding chunked {}B"</span>, len); |
| <span class="kw">let </span>buf = ChunkSize::new(len) |
| .chain(msg) |
| .chain(<span class="string">b"\r\n0\r\n\r\n" </span><span class="kw">as </span><span class="kw-2">&</span><span class="lifetime">'static </span>[u8]); |
| dst.buffer(buf); |
| !<span class="self">self</span>.is_last |
| } |
| Kind::Length(remaining) => { |
| <span class="kw">use </span>std::cmp::Ordering; |
| |
| <span class="macro">trace!</span>(<span class="string">"sized write, len = {}"</span>, len); |
| <span class="kw">match </span>(len <span class="kw">as </span>u64).cmp(<span class="kw-2">&</span>remaining) { |
| Ordering::Equal => { |
| dst.buffer(msg); |
| !<span class="self">self</span>.is_last |
| } |
| Ordering::Greater => { |
| dst.buffer(msg.take(remaining <span class="kw">as </span>usize)); |
| !<span class="self">self</span>.is_last |
| } |
| Ordering::Less => { |
| dst.buffer(msg); |
| <span class="bool-val">false |
| </span>} |
| } |
| } |
| <span class="attribute">#[cfg(feature = <span class="string">"server"</span>)] |
| </span>Kind::CloseDelimited => { |
| <span class="macro">trace!</span>(<span class="string">"close delimited write {}B"</span>, len); |
| dst.buffer(msg); |
| <span class="bool-val">false |
| </span>} |
| } |
| } |
| |
| <span class="doccomment">/// Encodes the full body, without verifying the remaining length matches. |
| /// |
| /// This is used in conjunction with HttpBody::__hyper_full_data(), which |
| /// means we can trust that the buf has the correct size (the buf itself |
| /// was checked to make the headers). |
| </span><span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>danger_full_buf<B>(<span class="self">self</span>, msg: B, dst: <span class="kw-2">&mut </span>WriteBuf<EncodedBuf<B>>) |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="macro">debug_assert!</span>(msg.remaining() > <span class="number">0</span>, <span class="string">"encode() called with empty buf"</span>); |
| <span class="macro">debug_assert!</span>( |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Length(len) => len == msg.remaining() <span class="kw">as </span>u64, |
| <span class="kw">_ </span>=> <span class="bool-val">true</span>, |
| }, |
| <span class="string">"danger_full_buf length mismatches" |
| </span>); |
| |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| Kind::Chunked => { |
| <span class="kw">let </span>len = msg.remaining(); |
| <span class="macro">trace!</span>(<span class="string">"encoding chunked {}B"</span>, len); |
| <span class="kw">let </span>buf = ChunkSize::new(len) |
| .chain(msg) |
| .chain(<span class="string">b"\r\n0\r\n\r\n" </span><span class="kw">as </span><span class="kw-2">&</span><span class="lifetime">'static </span>[u8]); |
| dst.buffer(buf); |
| } |
| <span class="kw">_ </span>=> { |
| dst.buffer(msg); |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><B> Buf <span class="kw">for </span>EncodedBuf<B> |
| <span class="kw">where |
| </span>B: Buf, |
| { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>remaining(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| BufKind::Exact(<span class="kw-2">ref </span>b) => b.remaining(), |
| BufKind::Limited(<span class="kw-2">ref </span>b) => b.remaining(), |
| BufKind::Chunked(<span class="kw-2">ref </span>b) => b.remaining(), |
| BufKind::ChunkedEnd(<span class="kw-2">ref </span>b) => b.remaining(), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>chunk(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| BufKind::Exact(<span class="kw-2">ref </span>b) => b.chunk(), |
| BufKind::Limited(<span class="kw-2">ref </span>b) => b.chunk(), |
| BufKind::Chunked(<span class="kw-2">ref </span>b) => b.chunk(), |
| BufKind::ChunkedEnd(<span class="kw-2">ref </span>b) => b.chunk(), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>advance(<span class="kw-2">&mut </span><span class="self">self</span>, cnt: usize) { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| BufKind::Exact(<span class="kw-2">ref mut </span>b) => b.advance(cnt), |
| BufKind::Limited(<span class="kw-2">ref mut </span>b) => b.advance(cnt), |
| BufKind::Chunked(<span class="kw-2">ref mut </span>b) => b.advance(cnt), |
| BufKind::ChunkedEnd(<span class="kw-2">ref mut </span>b) => b.advance(cnt), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>chunks_vectored<<span class="lifetime">'t</span>>(<span class="kw-2">&</span><span class="lifetime">'t </span><span class="self">self</span>, dst: <span class="kw-2">&mut </span>[IoSlice<<span class="lifetime">'t</span>>]) -> usize { |
| <span class="kw">match </span><span class="self">self</span>.kind { |
| BufKind::Exact(<span class="kw-2">ref </span>b) => b.chunks_vectored(dst), |
| BufKind::Limited(<span class="kw-2">ref </span>b) => b.chunks_vectored(dst), |
| BufKind::Chunked(<span class="kw-2">ref </span>b) => b.chunks_vectored(dst), |
| BufKind::ChunkedEnd(<span class="kw-2">ref </span>b) => b.chunks_vectored(dst), |
| } |
| } |
| } |
| |
| <span class="attribute">#[cfg(target_pointer_width = <span class="string">"32"</span>)] |
| </span><span class="kw">const </span>USIZE_BYTES: usize = <span class="number">4</span>; |
| |
| <span class="attribute">#[cfg(target_pointer_width = <span class="string">"64"</span>)] |
| </span><span class="kw">const </span>USIZE_BYTES: usize = <span class="number">8</span>; |
| |
| <span class="comment">// each byte will become 2 hex |
| </span><span class="kw">const </span>CHUNK_SIZE_MAX_BYTES: usize = USIZE_BYTES * <span class="number">2</span>; |
| |
| <span class="attribute">#[derive(Clone, Copy)] |
| </span><span class="kw">struct </span>ChunkSize { |
| bytes: [u8; CHUNK_SIZE_MAX_BYTES + <span class="number">2</span>], |
| pos: u8, |
| len: u8, |
| } |
| |
| <span class="kw">impl </span>ChunkSize { |
| <span class="kw">fn </span>new(len: usize) -> ChunkSize { |
| <span class="kw">use </span>std::fmt::Write; |
| <span class="kw">let </span><span class="kw-2">mut </span>size = ChunkSize { |
| bytes: [<span class="number">0</span>; CHUNK_SIZE_MAX_BYTES + <span class="number">2</span>], |
| pos: <span class="number">0</span>, |
| len: <span class="number">0</span>, |
| }; |
| <span class="macro">write!</span>(<span class="kw-2">&mut </span>size, <span class="string">"{:X}\r\n"</span>, len).expect(<span class="string">"CHUNK_SIZE_MAX_BYTES should fit any usize"</span>); |
| size |
| } |
| } |
| |
| <span class="kw">impl </span>Buf <span class="kw">for </span>ChunkSize { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>remaining(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| (<span class="self">self</span>.len - <span class="self">self</span>.pos).into() |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>chunk(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] { |
| <span class="kw-2">&</span><span class="self">self</span>.bytes[<span class="self">self</span>.pos.into()..<span class="self">self</span>.len.into()] |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>advance(<span class="kw-2">&mut </span><span class="self">self</span>, cnt: usize) { |
| <span class="macro">assert!</span>(cnt <= <span class="self">self</span>.remaining()); |
| <span class="self">self</span>.pos += cnt <span class="kw">as </span>u8; <span class="comment">// just asserted cnt fits in u8 |
| </span>} |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>ChunkSize { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| f.debug_struct(<span class="string">"ChunkSize"</span>) |
| .field(<span class="string">"bytes"</span>, &&<span class="self">self</span>.bytes[..<span class="self">self</span>.len.into()]) |
| .field(<span class="string">"pos"</span>, <span class="kw-2">&</span><span class="self">self</span>.pos) |
| .finish() |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Write <span class="kw">for </span>ChunkSize { |
| <span class="kw">fn </span>write_str(<span class="kw-2">&mut </span><span class="self">self</span>, num: <span class="kw-2">&</span>str) -> fmt::Result { |
| <span class="kw">use </span>std::io::Write; |
| (<span class="kw-2">&mut </span><span class="self">self</span>.bytes[<span class="self">self</span>.len.into()..]) |
| .write_all(num.as_bytes()) |
| .expect(<span class="string">"&mut [u8].write() cannot error"</span>); |
| <span class="self">self</span>.len += num.len() <span class="kw">as </span>u8; <span class="comment">// safe because bytes is never bigger than 256 |
| </span><span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl</span><B: Buf> From<B> <span class="kw">for </span>EncodedBuf<B> { |
| <span class="kw">fn </span>from(buf: B) -> <span class="self">Self </span>{ |
| EncodedBuf { |
| kind: BufKind::Exact(buf), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><B: Buf> From<Take<B>> <span class="kw">for </span>EncodedBuf<B> { |
| <span class="kw">fn </span>from(buf: Take<B>) -> <span class="self">Self </span>{ |
| EncodedBuf { |
| kind: BufKind::Limited(buf), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><B: Buf> From<Chain<Chain<ChunkSize, B>, StaticBuf>> <span class="kw">for </span>EncodedBuf<B> { |
| <span class="kw">fn </span>from(buf: Chain<Chain<ChunkSize, B>, StaticBuf>) -> <span class="self">Self </span>{ |
| EncodedBuf { |
| kind: BufKind::Chunked(buf), |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Display <span class="kw">for </span>NotEof { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, f: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="macro">write!</span>(f, <span class="string">"early end, expected {} more bytes"</span>, <span class="self">self</span>.<span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">impl </span>std::error::Error <span class="kw">for </span>NotEof {} |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span>bytes::BufMut; |
| |
| <span class="kw">use </span><span class="kw">super</span>::<span class="kw">super</span>::io::Cursor; |
| <span class="kw">use </span><span class="kw">super</span>::Encoder; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>chunked() { |
| <span class="kw">let </span><span class="kw-2">mut </span>encoder = Encoder::chunked(); |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = Vec::new(); |
| |
| <span class="kw">let </span>msg1 = <span class="string">b"foo bar"</span>.as_ref(); |
| <span class="kw">let </span>buf1 = encoder.encode(msg1); |
| dst.put(buf1); |
| <span class="macro">assert_eq!</span>(dst, <span class="string">b"7\r\nfoo bar\r\n"</span>); |
| |
| <span class="kw">let </span>msg2 = <span class="string">b"baz quux herp"</span>.as_ref(); |
| <span class="kw">let </span>buf2 = encoder.encode(msg2); |
| dst.put(buf2); |
| |
| <span class="macro">assert_eq!</span>(dst, <span class="string">b"7\r\nfoo bar\r\nD\r\nbaz quux herp\r\n"</span>); |
| |
| <span class="kw">let </span>end = encoder.end::<Cursor<Vec<u8>>>().unwrap().unwrap(); |
| dst.put(end); |
| |
| <span class="macro">assert_eq!</span>( |
| dst, |
| <span class="string">b"7\r\nfoo bar\r\nD\r\nbaz quux herp\r\n0\r\n\r\n"</span>.as_ref() |
| ); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>length() { |
| <span class="kw">let </span>max_len = <span class="number">8</span>; |
| <span class="kw">let </span><span class="kw-2">mut </span>encoder = Encoder::length(max_len <span class="kw">as </span>u64); |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = Vec::new(); |
| |
| <span class="kw">let </span>msg1 = <span class="string">b"foo bar"</span>.as_ref(); |
| <span class="kw">let </span>buf1 = encoder.encode(msg1); |
| dst.put(buf1); |
| |
| <span class="macro">assert_eq!</span>(dst, <span class="string">b"foo bar"</span>); |
| <span class="macro">assert!</span>(!encoder.is_eof()); |
| encoder.end::<()>().unwrap_err(); |
| |
| <span class="kw">let </span>msg2 = <span class="string">b"baz"</span>.as_ref(); |
| <span class="kw">let </span>buf2 = encoder.encode(msg2); |
| dst.put(buf2); |
| |
| <span class="macro">assert_eq!</span>(dst.len(), max_len); |
| <span class="macro">assert_eq!</span>(dst, <span class="string">b"foo barb"</span>); |
| <span class="macro">assert!</span>(encoder.is_eof()); |
| <span class="macro">assert!</span>(encoder.end::<()>().unwrap().is_none()); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>eof() { |
| <span class="kw">let </span><span class="kw-2">mut </span>encoder = Encoder::close_delimited(); |
| <span class="kw">let </span><span class="kw-2">mut </span>dst = Vec::new(); |
| |
| <span class="kw">let </span>msg1 = <span class="string">b"foo bar"</span>.as_ref(); |
| <span class="kw">let </span>buf1 = encoder.encode(msg1); |
| dst.put(buf1); |
| |
| <span class="macro">assert_eq!</span>(dst, <span class="string">b"foo bar"</span>); |
| <span class="macro">assert!</span>(!encoder.is_eof()); |
| encoder.end::<()>().unwrap(); |
| |
| <span class="kw">let </span>msg2 = <span class="string">b"baz"</span>.as_ref(); |
| <span class="kw">let </span>buf2 = encoder.encode(msg2); |
| dst.put(buf2); |
| |
| <span class="macro">assert_eq!</span>(dst, <span class="string">b"foo barbaz"</span>); |
| <span class="macro">assert!</span>(!encoder.is_eof()); |
| encoder.end::<()>().unwrap(); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../" data-current-crate="hyper" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |