| <!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/git/checkouts/tantivy-65d0bbbddbbd5d02/433372d/ownedbytes/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.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="../../ownedbytes/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="../../ownedbytes/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::convert::TryInto; |
| <span class="kw">use </span>std::ops::{Deref, Range}; |
| <span class="kw">use </span>std::sync::Arc; |
| <span class="kw">use </span>std::{fmt, io, mem}; |
| |
| <span class="kw">use </span>stable_deref_trait::StableDeref; |
| |
| <span class="doccomment">/// An OwnedBytes simply wraps an object that owns a slice of data and exposes |
| /// this data as a slice. |
| /// |
| /// The backing object is required to be `StableDeref`. |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>OwnedBytes { |
| data: <span class="kw-2">&</span><span class="lifetime">'static </span>[u8], |
| box_stable_deref: Arc<<span class="kw">dyn </span>Deref<Target = [u8]> + Sync + Send>, |
| } |
| |
| <span class="kw">impl </span>OwnedBytes { |
| <span class="doccomment">/// Creates an empty `OwnedBytes`. |
| </span><span class="kw">pub fn </span>empty() -> OwnedBytes { |
| OwnedBytes::new(<span class="kw-2">&</span>[][..]) |
| } |
| |
| <span class="doccomment">/// Creates an `OwnedBytes` instance given a `StableDeref` object. |
| </span><span class="kw">pub fn </span>new<T: StableDeref + Deref<Target = [u8]> + <span class="lifetime">'static </span>+ Send + Sync>( |
| data_holder: T, |
| ) -> OwnedBytes { |
| <span class="kw">let </span>box_stable_deref = Arc::new(data_holder); |
| <span class="kw">let </span>bytes: <span class="kw-2">&</span>[u8] = box_stable_deref.as_ref(); |
| <span class="kw">let </span>data = <span class="kw">unsafe </span>{ mem::transmute::<<span class="kw">_</span>, <span class="kw-2">&</span><span class="lifetime">'static </span>[u8]>(bytes.deref()) }; |
| OwnedBytes { |
| data, |
| box_stable_deref, |
| } |
| } |
| |
| <span class="doccomment">/// creates a fileslice that is just a view over a slice of the data. |
| </span><span class="attribute">#[must_use] |
| #[inline] |
| </span><span class="kw">pub fn </span>slice(<span class="kw-2">&</span><span class="self">self</span>, range: Range<usize>) -> <span class="self">Self </span>{ |
| OwnedBytes { |
| data: <span class="kw-2">&</span><span class="self">self</span>.data[range], |
| box_stable_deref: <span class="self">self</span>.box_stable_deref.clone(), |
| } |
| } |
| |
| <span class="doccomment">/// Returns the underlying slice of data. |
| /// `Deref` and `AsRef` are also available. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>as_slice(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] { |
| <span class="self">self</span>.data |
| } |
| |
| <span class="doccomment">/// Returns the len of the slice. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>len(<span class="kw-2">&</span><span class="self">self</span>) -> usize { |
| <span class="self">self</span>.data.len() |
| } |
| |
| <span class="doccomment">/// Splits the OwnedBytes into two OwnedBytes `(left, right)`. |
| /// |
| /// Left will hold `split_len` bytes. |
| /// |
| /// This operation is cheap and does not require to copy any memory. |
| /// On the other hand, both `left` and `right` retain a handle over |
| /// the entire slice of memory. In other words, the memory will only |
| /// be released when both left and right are dropped. |
| </span><span class="attribute">#[inline] |
| #[must_use] |
| </span><span class="kw">pub fn </span>split(<span class="self">self</span>, split_len: usize) -> (OwnedBytes, OwnedBytes) { |
| <span class="kw">let </span>right_box_stable_deref = <span class="self">self</span>.box_stable_deref.clone(); |
| <span class="kw">let </span>left = OwnedBytes { |
| data: <span class="kw-2">&</span><span class="self">self</span>.data[..split_len], |
| box_stable_deref: <span class="self">self</span>.box_stable_deref, |
| }; |
| <span class="kw">let </span>right = OwnedBytes { |
| data: <span class="kw-2">&</span><span class="self">self</span>.data[split_len..], |
| box_stable_deref: right_box_stable_deref, |
| }; |
| (left, right) |
| } |
| |
| <span class="doccomment">/// Splits the OwnedBytes into two OwnedBytes `(left, right)`. |
| /// |
| /// Right will hold `split_len` bytes. |
| /// |
| /// This operation is cheap and does not require to copy any memory. |
| /// On the other hand, both `left` and `right` retain a handle over |
| /// the entire slice of memory. In other words, the memory will only |
| /// be released when both left and right are dropped. |
| </span><span class="attribute">#[inline] |
| #[must_use] |
| </span><span class="kw">pub fn </span>rsplit(<span class="self">self</span>, split_len: usize) -> (OwnedBytes, OwnedBytes) { |
| <span class="kw">let </span>data_len = <span class="self">self</span>.data.len(); |
| <span class="self">self</span>.split(data_len - split_len) |
| } |
| |
| <span class="doccomment">/// Splits the right part of the `OwnedBytes` at the given offset. |
| /// |
| /// `self` is truncated to `split_len`, left with the remaining bytes. |
| </span><span class="kw">pub fn </span>split_off(<span class="kw-2">&mut </span><span class="self">self</span>, split_len: usize) -> OwnedBytes { |
| <span class="kw">let </span>right_box_stable_deref = <span class="self">self</span>.box_stable_deref.clone(); |
| <span class="kw">let </span>right_piece = OwnedBytes { |
| data: <span class="kw-2">&</span><span class="self">self</span>.data[split_len..], |
| box_stable_deref: right_box_stable_deref, |
| }; |
| <span class="self">self</span>.data = <span class="kw-2">&</span><span class="self">self</span>.data[..split_len]; |
| right_piece |
| } |
| |
| <span class="doccomment">/// Returns true iff this `OwnedBytes` is empty. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>is_empty(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="self">self</span>.as_slice().is_empty() |
| } |
| |
| <span class="doccomment">/// Drops the left most `advance_len` bytes. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>advance(<span class="kw-2">&mut </span><span class="self">self</span>, advance_len: usize) { |
| <span class="self">self</span>.data = <span class="kw-2">&</span><span class="self">self</span>.data[advance_len..] |
| } |
| |
| <span class="doccomment">/// Reads an `u8` from the `OwnedBytes` and advance by one byte. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>read_u8(<span class="kw-2">&mut </span><span class="self">self</span>) -> u8 { |
| <span class="macro">assert!</span>(!<span class="self">self</span>.is_empty()); |
| |
| <span class="kw">let </span>byte = <span class="self">self</span>.as_slice()[<span class="number">0</span>]; |
| <span class="self">self</span>.advance(<span class="number">1</span>); |
| byte |
| } |
| |
| <span class="doccomment">/// Reads an `u64` encoded as little-endian from the `OwnedBytes` and advance by 8 bytes. |
| </span><span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>read_u64(<span class="kw-2">&mut </span><span class="self">self</span>) -> u64 { |
| <span class="macro">assert!</span>(<span class="self">self</span>.len() > <span class="number">7</span>); |
| |
| <span class="kw">let </span>octlet: [u8; <span class="number">8</span>] = <span class="self">self</span>.as_slice()[..<span class="number">8</span>].try_into().unwrap(); |
| <span class="self">self</span>.advance(<span class="number">8</span>); |
| u64::from_le_bytes(octlet) |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>OwnedBytes { |
| <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) -> fmt::Result { |
| <span class="comment">// We truncate the bytes in order to make sure the debug string |
| // is not too long. |
| </span><span class="kw">let </span>bytes_truncated: <span class="kw-2">&</span>[u8] = <span class="kw">if </span><span class="self">self</span>.len() > <span class="number">8 </span>{ |
| <span class="kw-2">&</span><span class="self">self</span>.as_slice()[..<span class="number">10</span>] |
| } <span class="kw">else </span>{ |
| <span class="self">self</span>.as_slice() |
| }; |
| <span class="macro">write!</span>(f, <span class="string">"OwnedBytes({:?}, len={})"</span>, bytes_truncated, <span class="self">self</span>.len()) |
| } |
| } |
| |
| <span class="kw">impl </span>PartialEq <span class="kw">for </span>OwnedBytes { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>OwnedBytes) -> bool { |
| <span class="self">self</span>.as_slice() == other.as_slice() |
| } |
| } |
| |
| <span class="kw">impl </span>Eq <span class="kw">for </span>OwnedBytes {} |
| |
| <span class="kw">impl </span>PartialEq<[u8]> <span class="kw">for </span>OwnedBytes { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>[u8]) -> bool { |
| <span class="self">self</span>.as_slice() == other |
| } |
| } |
| |
| <span class="kw">impl </span>PartialEq<str> <span class="kw">for </span>OwnedBytes { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, other: <span class="kw-2">&</span>str) -> bool { |
| <span class="self">self</span>.as_slice() == other.as_bytes() |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>, T: <span class="question-mark">?</span>Sized> PartialEq<<span class="kw-2">&</span><span class="lifetime">'a </span>T> <span class="kw">for </span>OwnedBytes |
| <span class="kw">where </span>OwnedBytes: PartialEq<T> |
| { |
| <span class="kw">fn </span>eq(<span class="kw-2">&</span><span class="self">self</span>, other: &&<span class="lifetime">'a </span>T) -> bool { |
| <span class="kw-2">*</span><span class="self">self </span>== <span class="kw-2">**</span>other |
| } |
| } |
| |
| <span class="kw">impl </span>Deref <span class="kw">for </span>OwnedBytes { |
| <span class="kw">type </span>Target = [u8]; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>deref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span><span class="self">Self</span>::Target { |
| <span class="self">self</span>.as_slice() |
| } |
| } |
| |
| <span class="kw">impl </span>io::Read <span class="kw">for </span>OwnedBytes { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>read(<span class="kw-2">&mut </span><span class="self">self</span>, buf: <span class="kw-2">&mut </span>[u8]) -> io::Result<usize> { |
| <span class="kw">let </span>read_len = { |
| <span class="kw">let </span>data = <span class="self">self</span>.as_slice(); |
| <span class="kw">if </span>data.len() >= buf.len() { |
| <span class="kw">let </span>buf_len = buf.len(); |
| buf.copy_from_slice(<span class="kw-2">&</span>data[..buf_len]); |
| buf.len() |
| } <span class="kw">else </span>{ |
| <span class="kw">let </span>data_len = data.len(); |
| buf[..data_len].copy_from_slice(data); |
| data_len |
| } |
| }; |
| <span class="self">self</span>.advance(read_len); |
| <span class="prelude-val">Ok</span>(read_len) |
| } |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>read_to_end(<span class="kw-2">&mut </span><span class="self">self</span>, buf: <span class="kw-2">&mut </span>Vec<u8>) -> io::Result<usize> { |
| <span class="kw">let </span>read_len = { |
| <span class="kw">let </span>data = <span class="self">self</span>.as_slice(); |
| buf.extend(data); |
| data.len() |
| }; |
| <span class="self">self</span>.advance(read_len); |
| <span class="prelude-val">Ok</span>(read_len) |
| } |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>read_exact(<span class="kw-2">&mut </span><span class="self">self</span>, buf: <span class="kw-2">&mut </span>[u8]) -> io::Result<()> { |
| <span class="kw">let </span>read_len = <span class="self">self</span>.read(buf)<span class="question-mark">?</span>; |
| <span class="kw">if </span>read_len != buf.len() { |
| <span class="kw">return </span><span class="prelude-val">Err</span>(io::Error::new( |
| io::ErrorKind::UnexpectedEof, |
| <span class="string">"failed to fill whole buffer"</span>, |
| )); |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| } |
| |
| <span class="kw">impl </span>AsRef<[u8]> <span class="kw">for </span>OwnedBytes { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>as_ref(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="kw-2">&</span>[u8] { |
| <span class="self">self</span>.as_slice() |
| } |
| } |
| |
| <span class="attribute">#[cfg(test)] |
| </span><span class="kw">mod </span>tests { |
| <span class="kw">use </span>std::io::{<span class="self">self</span>, Read}; |
| |
| <span class="kw">use </span><span class="kw">super</span>::OwnedBytes; |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_debug() { |
| <span class="kw">let </span>short_bytes = OwnedBytes::new(<span class="string">b"abcd"</span>.as_ref()); |
| <span class="macro">assert_eq!</span>( |
| <span class="macro">format!</span>(<span class="string">"{:?}"</span>, short_bytes), |
| <span class="string">"OwnedBytes([97, 98, 99, 100], len=4)" |
| </span>); |
| <span class="kw">let </span>long_bytes = OwnedBytes::new(<span class="string">b"abcdefghijklmnopq"</span>.as_ref()); |
| <span class="macro">assert_eq!</span>( |
| <span class="macro">format!</span>(<span class="string">"{:?}"</span>, long_bytes), |
| <span class="string">"OwnedBytes([97, 98, 99, 100, 101, 102, 103, 104, 105, 106], len=17)" |
| </span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_read() -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = OwnedBytes::new(<span class="string">b"abcdefghiklmnopqrstuvwxyz"</span>.as_ref()); |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0u8</span>; <span class="number">5</span>]; |
| bytes.read_exact(<span class="kw-2">&mut </span>buf[..]).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>buf, <span class="string">b"abcde"</span>); |
| <span class="macro">assert_eq!</span>(bytes.as_slice(), <span class="string">b"fghiklmnopqrstuvwxyz"</span>) |
| } |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0u8</span>; <span class="number">2</span>]; |
| bytes.read_exact(<span class="kw-2">&mut </span>buf[..]).unwrap(); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>buf, <span class="string">b"fg"</span>); |
| <span class="macro">assert_eq!</span>(bytes.as_slice(), <span class="string">b"hiklmnopqrstuvwxyz"</span>) |
| } |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_read_right_at_the_end() -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = OwnedBytes::new(<span class="string">b"abcde"</span>.as_ref()); |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0u8</span>; <span class="number">5</span>]; |
| <span class="macro">assert_eq!</span>(bytes.read(<span class="kw-2">&mut </span>buf[..]).unwrap(), <span class="number">5</span>); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>buf, <span class="string">b"abcde"</span>); |
| <span class="macro">assert_eq!</span>(bytes.as_slice(), <span class="string">b""</span>); |
| <span class="macro">assert_eq!</span>(bytes.read(<span class="kw-2">&mut </span>buf[..]).unwrap(), <span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>buf, <span class="string">b"abcde"</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_read_incomplete() -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = OwnedBytes::new(<span class="string">b"abcde"</span>.as_ref()); |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0u8</span>; <span class="number">7</span>]; |
| <span class="macro">assert_eq!</span>(bytes.read(<span class="kw-2">&mut </span>buf[..]).unwrap(), <span class="number">5</span>); |
| <span class="macro">assert_eq!</span>(<span class="kw-2">&</span>buf[..<span class="number">5</span>], <span class="string">b"abcde"</span>); |
| <span class="macro">assert_eq!</span>(bytes.read(<span class="kw-2">&mut </span>buf[..]).unwrap(), <span class="number">0</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_read_to_end() -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = OwnedBytes::new(<span class="string">b"abcde"</span>.as_ref()); |
| <span class="kw">let </span><span class="kw-2">mut </span>buf = Vec::new(); |
| bytes.read_to_end(<span class="kw-2">&mut </span>buf)<span class="question-mark">?</span>; |
| <span class="macro">assert_eq!</span>(buf.as_slice(), <span class="string">b"abcde"</span>.as_ref()); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_read_u8() -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = OwnedBytes::new(<span class="string">b"\xFF"</span>.as_ref()); |
| <span class="macro">assert_eq!</span>(bytes.read_u8(), <span class="number">255</span>); |
| <span class="macro">assert_eq!</span>(bytes.len(), <span class="number">0</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_read_u64() -> io::Result<()> { |
| <span class="kw">let </span><span class="kw-2">mut </span>bytes = OwnedBytes::new(<span class="string">b"\0\xFF\xFF\xFF\xFF\xFF\xFF\xFF"</span>.as_ref()); |
| <span class="macro">assert_eq!</span>(bytes.read_u64(), u64::MAX - <span class="number">255</span>); |
| <span class="macro">assert_eq!</span>(bytes.len(), <span class="number">0</span>); |
| <span class="prelude-val">Ok</span>(()) |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_split() { |
| <span class="kw">let </span>bytes = OwnedBytes::new(<span class="string">b"abcdefghi"</span>.as_ref()); |
| <span class="kw">let </span>(left, right) = bytes.split(<span class="number">3</span>); |
| <span class="macro">assert_eq!</span>(left.as_slice(), <span class="string">b"abc"</span>); |
| <span class="macro">assert_eq!</span>(right.as_slice(), <span class="string">b"defghi"</span>); |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_owned_bytes_split_boundary() { |
| <span class="kw">let </span>bytes = OwnedBytes::new(<span class="string">b"abcdefghi"</span>.as_ref()); |
| { |
| <span class="kw">let </span>(left, right) = bytes.clone().split(<span class="number">0</span>); |
| <span class="macro">assert_eq!</span>(left.as_slice(), <span class="string">b""</span>); |
| <span class="macro">assert_eq!</span>(right.as_slice(), <span class="string">b"abcdefghi"</span>); |
| } |
| { |
| <span class="kw">let </span>(left, right) = bytes.split(<span class="number">9</span>); |
| <span class="macro">assert_eq!</span>(left.as_slice(), <span class="string">b"abcdefghi"</span>); |
| <span class="macro">assert_eq!</span>(right.as_slice(), <span class="string">b""</span>); |
| } |
| } |
| |
| <span class="attribute">#[test] |
| </span><span class="kw">fn </span>test_split_off() { |
| <span class="kw">let </span><span class="kw-2">mut </span>data = OwnedBytes::new(<span class="string">b"abcdef"</span>.as_ref()); |
| <span class="macro">assert_eq!</span>(data, <span class="string">"abcdef"</span>); |
| <span class="macro">assert_eq!</span>(data.split_off(<span class="number">2</span>), <span class="string">"cdef"</span>); |
| <span class="macro">assert_eq!</span>(data, <span class="string">"ab"</span>); |
| <span class="macro">assert_eq!</span>(data.split_off(<span class="number">1</span>), <span class="string">"b"</span>); |
| <span class="macro">assert_eq!</span>(data, <span class="string">"a"</span>); |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="ownedbytes" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
