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authorGravatar ci <ci> 2024-05-28 08:18:05 +0000
committerGravatar ci <ci> 2024-05-28 08:18:05 +0000
commitb72715079051a93004b0ad9ccc345ff006267921 (patch)
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-rw-r--r--src/bytes/buf/buf_impl.rs.html2930
-rw-r--r--src/bytes/buf/buf_mut.rs.html3284
-rw-r--r--src/bytes/buf/chain.rs.html482
-rw-r--r--src/bytes/buf/iter.rs.html256
-rw-r--r--src/bytes/buf/limit.rs.html152
-rw-r--r--src/bytes/buf/mod.rs.html80
-rw-r--r--src/bytes/buf/reader.rs.html164
-rw-r--r--src/bytes/buf/take.rs.html312
-rw-r--r--src/bytes/buf/uninit_slice.rs.html516
-rw-r--r--src/bytes/buf/vec_deque.rs.html46
-rw-r--r--src/bytes/buf/writer.rs.html178
-rw-r--r--src/bytes/bytes.rs.html2962
-rw-r--r--src/bytes/bytes_mut.rs.html3670
-rw-r--r--src/bytes/fmt/debug.rs.html100
-rw-r--r--src/bytes/fmt/hex.rs.html76
-rw-r--r--src/bytes/fmt/mod.rs.html12
-rw-r--r--src/bytes/lib.rs.html332
-rw-r--r--src/bytes/loom.rs.html62
-rw-r--r--src/bytes/serde.rs.html180
19 files changed, 15794 insertions, 0 deletions
diff --git a/src/bytes/buf/buf_impl.rs.html b/src/bytes/buf/buf_impl.rs.html
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+<span id="1452">1452</span>
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+<span id="1461">1461</span>
+<span id="1462">1462</span>
+<span id="1463">1463</span>
+<span id="1464">1464</span>
+</pre><pre class="rust"><code><span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">use </span><span class="kw">crate</span>::buf::{reader, Reader};
+<span class="kw">use </span><span class="kw">crate</span>::buf::{take, Chain, Take};
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">use crate</span>::{min_u64_usize, saturating_sub_usize_u64};
+<span class="kw">use crate</span>::{panic_advance, panic_does_not_fit};
+
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">use </span>std::io::IoSlice;
+
+<span class="kw">use </span>alloc::boxed::Box;
+
+<span class="macro">macro_rules! </span>buf_get_impl {
+ (<span class="macro-nonterminal">$this</span>:ident, <span class="macro-nonterminal">$typ</span>:tt::<span class="macro-nonterminal">$conv</span>:tt) =&gt; {{
+ <span class="kw">const </span>SIZE: usize = core::mem::size_of::&lt;<span class="macro-nonterminal">$typ</span>&gt;();
+
+ <span class="kw">if </span><span class="macro-nonterminal">$this</span>.remaining() &lt; SIZE {
+ panic_advance(SIZE, <span class="macro-nonterminal">$this</span>.remaining());
+ }
+
+ <span class="comment">// try to convert directly from the bytes
+ // this Option&lt;ret&gt; trick is to avoid keeping a borrow on self
+ // when advance() is called (mut borrow) and to call bytes() only once
+ </span><span class="kw">let </span>ret = <span class="macro-nonterminal">$this
+ </span>.chunk()
+ .get(..SIZE)
+ .map(|src| <span class="kw">unsafe </span>{ <span class="macro-nonterminal">$typ</span>::<span class="macro-nonterminal">$conv</span>(<span class="kw-2">*</span>(src <span class="kw">as </span><span class="kw-2">*const </span><span class="kw">_ as </span><span class="kw-2">*const </span>[<span class="kw">_</span>; SIZE])) });
+
+ <span class="kw">if let </span><span class="prelude-val">Some</span>(ret) = ret {
+ <span class="comment">// if the direct conversion was possible, advance and return
+ </span><span class="macro-nonterminal">$this</span>.advance(SIZE);
+ <span class="kw">return </span>ret;
+ } <span class="kw">else </span>{
+ <span class="comment">// if not we copy the bytes in a temp buffer then convert
+ </span><span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; SIZE];
+ <span class="macro-nonterminal">$this</span>.copy_to_slice(<span class="kw-2">&amp;mut </span>buf); <span class="comment">// (do the advance)
+ </span><span class="kw">return </span><span class="macro-nonterminal">$typ</span>::<span class="macro-nonterminal">$conv</span>(buf);
+ }
+ }};
+ (le =&gt; <span class="macro-nonterminal">$this</span>:ident, <span class="macro-nonterminal">$typ</span>:tt, <span class="macro-nonterminal">$len_to_read</span>:expr) =&gt; {{
+ <span class="kw">const </span>SIZE: usize = core::mem::size_of::&lt;<span class="macro-nonterminal">$typ</span>&gt;();
+
+ <span class="comment">// The same trick as above does not improve the best case speed.
+ // It seems to be linked to the way the method is optimised by the compiler
+ </span><span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; SIZE];
+
+ <span class="kw">let </span>subslice = <span class="kw">match </span>buf.get_mut(..<span class="macro-nonterminal">$len_to_read</span>) {
+ <span class="prelude-val">Some</span>(subslice) =&gt; subslice,
+ <span class="prelude-val">None </span>=&gt; panic_does_not_fit(SIZE, <span class="macro-nonterminal">$len_to_read</span>),
+ };
+
+ <span class="macro-nonterminal">$this</span>.copy_to_slice(subslice);
+ <span class="kw">return </span><span class="macro-nonterminal">$typ::from_le_bytes</span>(buf);
+ }};
+ (be =&gt; <span class="macro-nonterminal">$this</span>:ident, <span class="macro-nonterminal">$typ</span>:tt, <span class="macro-nonterminal">$len_to_read</span>:expr) =&gt; {{
+ <span class="kw">const </span>SIZE: usize = core::mem::size_of::&lt;<span class="macro-nonterminal">$typ</span>&gt;();
+
+ <span class="kw">let </span>slice_at = <span class="kw">match </span>SIZE.checked_sub(<span class="macro-nonterminal">$len_to_read</span>) {
+ <span class="prelude-val">Some</span>(slice_at) =&gt; slice_at,
+ <span class="prelude-val">None </span>=&gt; panic_does_not_fit(SIZE, <span class="macro-nonterminal">$len_to_read</span>),
+ };
+
+ <span class="kw">let </span><span class="kw-2">mut </span>buf = [<span class="number">0</span>; SIZE];
+ <span class="macro-nonterminal">$this</span>.copy_to_slice(<span class="kw-2">&amp;mut </span>buf[slice_at..]);
+ <span class="kw">return </span><span class="macro-nonterminal">$typ::from_be_bytes</span>(buf);
+ }};
+}
+
+<span class="doccomment">/// Read bytes from a buffer.
+///
+/// A buffer stores bytes in memory such that read operations are infallible.
+/// The underlying storage may or may not be in contiguous memory. A `Buf` value
+/// is a cursor into the buffer. Reading from `Buf` advances the cursor
+/// position. It can be thought of as an efficient `Iterator` for collections of
+/// bytes.
+///
+/// The simplest `Buf` is a `&amp;[u8]`.
+///
+/// ```
+/// use bytes::Buf;
+///
+/// let mut buf = &amp;b&quot;hello world&quot;[..];
+///
+/// assert_eq!(b&#39;h&#39;, buf.get_u8());
+/// assert_eq!(b&#39;e&#39;, buf.get_u8());
+/// assert_eq!(b&#39;l&#39;, buf.get_u8());
+///
+/// let mut rest = [0; 8];
+/// buf.copy_to_slice(&amp;mut rest);
+///
+/// assert_eq!(&amp;rest[..], &amp;b&quot;lo world&quot;[..]);
+/// ```
+</span><span class="kw">pub trait </span>Buf {
+ <span class="doccomment">/// Returns the number of bytes between the current position and the end of
+ /// the buffer.
+ ///
+ /// This value is greater than or equal to the length of the slice returned
+ /// by `chunk()`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;hello world&quot;[..];
+ ///
+ /// assert_eq!(buf.remaining(), 11);
+ ///
+ /// buf.get_u8();
+ ///
+ /// assert_eq!(buf.remaining(), 10);
+ /// ```
+ ///
+ /// # Implementer notes
+ ///
+ /// Implementations of `remaining` should ensure that the return value does
+ /// not change unless a call is made to `advance` or any other function that
+ /// is documented to change the `Buf`&#39;s current position.
+ </span><span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize;
+
+ <span class="doccomment">/// Returns a slice starting at the current position and of length between 0
+ /// and `Buf::remaining()`. Note that this *can* return shorter slice (this allows
+ /// non-continuous internal representation).
+ ///
+ /// This is a lower level function. Most operations are done with other
+ /// functions.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;hello world&quot;[..];
+ ///
+ /// assert_eq!(buf.chunk(), &amp;b&quot;hello world&quot;[..]);
+ ///
+ /// buf.advance(6);
+ ///
+ /// assert_eq!(buf.chunk(), &amp;b&quot;world&quot;[..]);
+ /// ```
+ ///
+ /// # Implementer notes
+ ///
+ /// This function should never panic. Once the end of the buffer is reached,
+ /// i.e., `Buf::remaining` returns 0, calls to `chunk()` should return an
+ /// empty slice.
+ </span><span class="comment">// The `chunk` method was previously called `bytes`. This alias makes the rename
+ // more easily discoverable.
+ </span><span class="attr">#[cfg_attr(docsrs, doc(alias = <span class="string">&quot;bytes&quot;</span>))]
+ </span><span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8];
+
+ <span class="doccomment">/// Fills `dst` with potentially multiple slices starting at `self`&#39;s
+ /// current position.
+ ///
+ /// If the `Buf` is backed by disjoint slices of bytes, `chunk_vectored` enables
+ /// fetching more than one slice at once. `dst` is a slice of `IoSlice`
+ /// references, enabling the slice to be directly used with [`writev`]
+ /// without any further conversion. The sum of the lengths of all the
+ /// buffers in `dst` will be less than or equal to `Buf::remaining()`.
+ ///
+ /// The entries in `dst` will be overwritten, but the data **contained** by
+ /// the slices **will not** be modified. If `chunk_vectored` does not fill every
+ /// entry in `dst`, then `dst` is guaranteed to contain all remaining slices
+ /// in `self.
+ ///
+ /// This is a lower level function. Most operations are done with other
+ /// functions.
+ ///
+ /// # Implementer notes
+ ///
+ /// This function should never panic. Once the end of the buffer is reached,
+ /// i.e., `Buf::remaining` returns 0, calls to `chunk_vectored` must return 0
+ /// without mutating `dst`.
+ ///
+ /// Implementations should also take care to properly handle being called
+ /// with `dst` being a zero length slice.
+ ///
+ /// [`writev`]: http://man7.org/linux/man-pages/man2/readv.2.html
+ </span><span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+ #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">&quot;std&quot;</span>)))]
+ </span><span class="kw">fn </span>chunks_vectored&lt;<span class="lifetime">&#39;a</span>&gt;(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="self">self</span>, dst: <span class="kw-2">&amp;mut </span>[IoSlice&lt;<span class="lifetime">&#39;a</span>&gt;]) -&gt; usize {
+ <span class="kw">if </span>dst.is_empty() {
+ <span class="kw">return </span><span class="number">0</span>;
+ }
+
+ <span class="kw">if </span><span class="self">self</span>.has_remaining() {
+ dst[<span class="number">0</span>] = IoSlice::new(<span class="self">self</span>.chunk());
+ <span class="number">1
+ </span>} <span class="kw">else </span>{
+ <span class="number">0
+ </span>}
+ }
+
+ <span class="doccomment">/// Advance the internal cursor of the Buf
+ ///
+ /// The next call to `chunk()` will return a slice starting `cnt` bytes
+ /// further into the underlying buffer.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;hello world&quot;[..];
+ ///
+ /// assert_eq!(buf.chunk(), &amp;b&quot;hello world&quot;[..]);
+ ///
+ /// buf.advance(6);
+ ///
+ /// assert_eq!(buf.chunk(), &amp;b&quot;world&quot;[..]);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function **may** panic if `cnt &gt; self.remaining()`.
+ ///
+ /// # Implementer notes
+ ///
+ /// It is recommended for implementations of `advance` to panic if `cnt &gt;
+ /// self.remaining()`. If the implementation does not panic, the call must
+ /// behave as if `cnt == self.remaining()`.
+ ///
+ /// A call with `cnt == 0` should never panic and be a no-op.
+ </span><span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize);
+
+ <span class="doccomment">/// Returns true if there are any more bytes to consume
+ ///
+ /// This is equivalent to `self.remaining() != 0`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;a&quot;[..];
+ ///
+ /// assert!(buf.has_remaining());
+ ///
+ /// buf.get_u8();
+ ///
+ /// assert!(!buf.has_remaining());
+ /// ```
+ </span><span class="kw">fn </span>has_remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ <span class="self">self</span>.remaining() &gt; <span class="number">0
+ </span>}
+
+ <span class="doccomment">/// Copies bytes from `self` into `dst`.
+ ///
+ /// The cursor is advanced by the number of bytes copied. `self` must have
+ /// enough remaining bytes to fill `dst`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;hello world&quot;[..];
+ /// let mut dst = [0; 5];
+ ///
+ /// buf.copy_to_slice(&amp;mut dst);
+ /// assert_eq!(&amp;b&quot;hello&quot;[..], &amp;dst);
+ /// assert_eq!(6, buf.remaining());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if `self.remaining() &lt; dst.len()`.
+ </span><span class="kw">fn </span>copy_to_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>dst: <span class="kw-2">&amp;mut </span>[u8]) {
+ <span class="kw">if </span><span class="self">self</span>.remaining() &lt; dst.len() {
+ panic_advance(dst.len(), <span class="self">self</span>.remaining());
+ }
+
+ <span class="kw">while </span>!dst.is_empty() {
+ <span class="kw">let </span>src = <span class="self">self</span>.chunk();
+ <span class="kw">let </span>cnt = usize::min(src.len(), dst.len());
+
+ dst[..cnt].copy_from_slice(<span class="kw-2">&amp;</span>src[..cnt]);
+ dst = <span class="kw-2">&amp;mut </span>dst[cnt..];
+
+ <span class="self">self</span>.advance(cnt);
+ }
+ }
+
+ <span class="doccomment">/// Gets an unsigned 8 bit integer from `self`.
+ ///
+ /// The current position is advanced by 1.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08 hello&quot;[..];
+ /// assert_eq!(8, buf.get_u8());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is no more remaining data in `self`.
+ </span><span class="kw">fn </span>get_u8(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u8 {
+ <span class="kw">if </span><span class="self">self</span>.remaining() &lt; <span class="number">1 </span>{
+ panic_advance(<span class="number">1</span>, <span class="number">0</span>);
+ }
+ <span class="kw">let </span>ret = <span class="self">self</span>.chunk()[<span class="number">0</span>];
+ <span class="self">self</span>.advance(<span class="number">1</span>);
+ ret
+ }
+
+ <span class="doccomment">/// Gets a signed 8 bit integer from `self`.
+ ///
+ /// The current position is advanced by 1.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08 hello&quot;[..];
+ /// assert_eq!(8, buf.get_i8());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is no more remaining data in `self`.
+ </span><span class="kw">fn </span>get_i8(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i8 {
+ <span class="kw">if </span><span class="self">self</span>.remaining() &lt; <span class="number">1 </span>{
+ panic_advance(<span class="number">1</span>, <span class="number">0</span>);
+ }
+ <span class="kw">let </span>ret = <span class="self">self</span>.chunk()[<span class="number">0</span>] <span class="kw">as </span>i8;
+ <span class="self">self</span>.advance(<span class="number">1</span>);
+ ret
+ }
+
+ <span class="doccomment">/// Gets an unsigned 16 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08\x09 hello&quot;[..];
+ /// assert_eq!(0x0809, buf.get_u16());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u16(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u16 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u16::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 16 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x09\x08 hello&quot;[..];
+ /// assert_eq!(0x0809, buf.get_u16_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u16 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u16::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 16 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x08\x09 hello&quot;,
+ /// false =&gt; b&quot;\x09\x08 hello&quot;,
+ /// };
+ /// assert_eq!(0x0809, buf.get_u16_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u16 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u16::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 16 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08\x09 hello&quot;[..];
+ /// assert_eq!(0x0809, buf.get_i16());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i16(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i16 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i16::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 16 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x09\x08 hello&quot;[..];
+ /// assert_eq!(0x0809, buf.get_i16_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i16 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i16::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 16 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x08\x09 hello&quot;,
+ /// false =&gt; b&quot;\x09\x08 hello&quot;,
+ /// };
+ /// assert_eq!(0x0809, buf.get_i16_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i16 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i16::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 32 bit integer from `self` in the big-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08\x09\xA0\xA1 hello&quot;[..];
+ /// assert_eq!(0x0809A0A1, buf.get_u32());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u32(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u32 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u32::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 32 bit integer from `self` in the little-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\xA1\xA0\x09\x08 hello&quot;[..];
+ /// assert_eq!(0x0809A0A1, buf.get_u32_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u32 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u32::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 32 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x08\x09\xA0\xA1 hello&quot;,
+ /// false =&gt; b&quot;\xA1\xA0\x09\x08 hello&quot;,
+ /// };
+ /// assert_eq!(0x0809A0A1, buf.get_u32_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u32 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u32::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 32 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08\x09\xA0\xA1 hello&quot;[..];
+ /// assert_eq!(0x0809A0A1, buf.get_i32());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i32(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i32 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i32::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 32 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\xA1\xA0\x09\x08 hello&quot;[..];
+ /// assert_eq!(0x0809A0A1, buf.get_i32_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i32 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i32::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 32 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x08\x09\xA0\xA1 hello&quot;,
+ /// false =&gt; b&quot;\xA1\xA0\x09\x08 hello&quot;,
+ /// };
+ /// assert_eq!(0x0809A0A1, buf.get_i32_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i32 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i32::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 64 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x01\x02\x03\x04\x05\x06\x07\x08 hello&quot;[..];
+ /// assert_eq!(0x0102030405060708, buf.get_u64());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u64(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u64 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u64::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 64 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;[..];
+ /// assert_eq!(0x0102030405060708, buf.get_u64_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u64 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u64::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 64 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x01\x02\x03\x04\x05\x06\x07\x08 hello&quot;,
+ /// false =&gt; b&quot;\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;,
+ /// };
+ /// assert_eq!(0x0102030405060708, buf.get_u64_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u64 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u64::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 64 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x01\x02\x03\x04\x05\x06\x07\x08 hello&quot;[..];
+ /// assert_eq!(0x0102030405060708, buf.get_i64());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i64(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i64 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i64::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 64 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;[..];
+ /// assert_eq!(0x0102030405060708, buf.get_i64_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i64 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i64::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 64 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x01\x02\x03\x04\x05\x06\x07\x08 hello&quot;,
+ /// false =&gt; b&quot;\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;,
+ /// };
+ /// assert_eq!(0x0102030405060708, buf.get_i64_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i64 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i64::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 128 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16 hello&quot;[..];
+ /// assert_eq!(0x01020304050607080910111213141516, buf.get_u128());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u128(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u128 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u128::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 128 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;[..];
+ /// assert_eq!(0x01020304050607080910111213141516, buf.get_u128_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u128_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u128 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u128::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned 128 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16 hello&quot;,
+ /// false =&gt; b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;,
+ /// };
+ /// assert_eq!(0x01020304050607080910111213141516, buf.get_u128_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_u128_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u128 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, u128::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 128 bit integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16 hello&quot;[..];
+ /// assert_eq!(0x01020304050607080910111213141516, buf.get_i128());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i128(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i128 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i128::from_be_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 128 bit integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;[..];
+ /// assert_eq!(0x01020304050607080910111213141516, buf.get_i128_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i128_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i128 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i128::from_le_bytes);
+ }
+
+ <span class="doccomment">/// Gets a signed 128 bit integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16 hello&quot;,
+ /// false =&gt; b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01 hello&quot;,
+ /// };
+ /// assert_eq!(0x01020304050607080910111213141516, buf.get_i128_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_i128_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i128 {
+ <span class="macro">buf_get_impl!</span>(<span class="self">self</span>, i128::from_ne_bytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned n-byte integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x01\x02\x03 hello&quot;[..];
+ /// assert_eq!(0x010203, buf.get_uint(3));
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_uint(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; u64 {
+ <span class="macro">buf_get_impl!</span>(be =&gt; <span class="self">self</span>, u64, nbytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned n-byte integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x03\x02\x01 hello&quot;[..];
+ /// assert_eq!(0x010203, buf.get_uint_le(3));
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_uint_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; u64 {
+ <span class="macro">buf_get_impl!</span>(le =&gt; <span class="self">self</span>, u64, nbytes);
+ }
+
+ <span class="doccomment">/// Gets an unsigned n-byte integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x01\x02\x03 hello&quot;,
+ /// false =&gt; b&quot;\x03\x02\x01 hello&quot;,
+ /// };
+ /// assert_eq!(0x010203, buf.get_uint_ne(3));
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`, or
+ /// if `nbytes` is greater than 8.
+ </span><span class="kw">fn </span>get_uint_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; u64 {
+ <span class="kw">if </span><span class="macro">cfg!</span>(target_endian = <span class="string">&quot;big&quot;</span>) {
+ <span class="self">self</span>.get_uint(nbytes)
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.get_uint_le(nbytes)
+ }
+ }
+
+ <span class="doccomment">/// Gets a signed n-byte integer from `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x01\x02\x03 hello&quot;[..];
+ /// assert_eq!(0x010203, buf.get_int(3));
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`, or
+ /// if `nbytes` is greater than 8.
+ </span><span class="kw">fn </span>get_int(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; i64 {
+ <span class="macro">buf_get_impl!</span>(be =&gt; <span class="self">self</span>, i64, nbytes);
+ }
+
+ <span class="doccomment">/// Gets a signed n-byte integer from `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x03\x02\x01 hello&quot;[..];
+ /// assert_eq!(0x010203, buf.get_int_le(3));
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`, or
+ /// if `nbytes` is greater than 8.
+ </span><span class="kw">fn </span>get_int_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; i64 {
+ <span class="macro">buf_get_impl!</span>(le =&gt; <span class="self">self</span>, i64, nbytes);
+ }
+
+ <span class="doccomment">/// Gets a signed n-byte integer from `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x01\x02\x03 hello&quot;,
+ /// false =&gt; b&quot;\x03\x02\x01 hello&quot;,
+ /// };
+ /// assert_eq!(0x010203, buf.get_int_ne(3));
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`, or
+ /// if `nbytes` is greater than 8.
+ </span><span class="kw">fn </span>get_int_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; i64 {
+ <span class="kw">if </span><span class="macro">cfg!</span>(target_endian = <span class="string">&quot;big&quot;</span>) {
+ <span class="self">self</span>.get_int(nbytes)
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.get_int_le(nbytes)
+ }
+ }
+
+ <span class="doccomment">/// Gets an IEEE754 single-precision (4 bytes) floating point number from
+ /// `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x3F\x99\x99\x9A hello&quot;[..];
+ /// assert_eq!(1.2f32, buf.get_f32());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_f32(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; f32 {
+ f32::from_bits(<span class="self">self</span>.get_u32())
+ }
+
+ <span class="doccomment">/// Gets an IEEE754 single-precision (4 bytes) floating point number from
+ /// `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x9A\x99\x99\x3F hello&quot;[..];
+ /// assert_eq!(1.2f32, buf.get_f32_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_f32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; f32 {
+ f32::from_bits(<span class="self">self</span>.get_u32_le())
+ }
+
+ <span class="doccomment">/// Gets an IEEE754 single-precision (4 bytes) floating point number from
+ /// `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x3F\x99\x99\x9A hello&quot;,
+ /// false =&gt; b&quot;\x9A\x99\x99\x3F hello&quot;,
+ /// };
+ /// assert_eq!(1.2f32, buf.get_f32_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_f32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; f32 {
+ f32::from_bits(<span class="self">self</span>.get_u32_ne())
+ }
+
+ <span class="doccomment">/// Gets an IEEE754 double-precision (8 bytes) floating point number from
+ /// `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x3F\xF3\x33\x33\x33\x33\x33\x33 hello&quot;[..];
+ /// assert_eq!(1.2f64, buf.get_f64());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_f64(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; f64 {
+ f64::from_bits(<span class="self">self</span>.get_u64())
+ }
+
+ <span class="doccomment">/// Gets an IEEE754 double-precision (8 bytes) floating point number from
+ /// `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = &amp;b&quot;\x33\x33\x33\x33\x33\x33\xF3\x3F hello&quot;[..];
+ /// assert_eq!(1.2f64, buf.get_f64_le());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_f64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; f64 {
+ f64::from_bits(<span class="self">self</span>.get_u64_le())
+ }
+
+ <span class="doccomment">/// Gets an IEEE754 double-precision (8 bytes) floating point number from
+ /// `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf: &amp;[u8] = match cfg!(target_endian = &quot;big&quot;) {
+ /// true =&gt; b&quot;\x3F\xF3\x33\x33\x33\x33\x33\x33 hello&quot;,
+ /// false =&gt; b&quot;\x33\x33\x33\x33\x33\x33\xF3\x3F hello&quot;,
+ /// };
+ /// assert_eq!(1.2f64, buf.get_f64_ne());
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining data in `self`.
+ </span><span class="kw">fn </span>get_f64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; f64 {
+ f64::from_bits(<span class="self">self</span>.get_u64_ne())
+ }
+
+ <span class="doccomment">/// Consumes `len` bytes inside self and returns new instance of `Bytes`
+ /// with this data.
+ ///
+ /// This function may be optimized by the underlying type to avoid actual
+ /// copies. For example, `Bytes` implementation will do a shallow copy
+ /// (ref-count increment).
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let bytes = (&amp;b&quot;hello world&quot;[..]).copy_to_bytes(5);
+ /// assert_eq!(&amp;bytes[..], &amp;b&quot;hello&quot;[..]);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if `len &gt; self.remaining()`.
+ </span><span class="kw">fn </span>copy_to_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) -&gt; <span class="kw">crate</span>::Bytes {
+ <span class="kw">use </span><span class="kw">super</span>::BufMut;
+
+ <span class="kw">if </span><span class="self">self</span>.remaining() &lt; len {
+ panic_advance(len, <span class="self">self</span>.remaining());
+ }
+
+ <span class="kw">let </span><span class="kw-2">mut </span>ret = <span class="kw">crate</span>::BytesMut::with_capacity(len);
+ ret.put(<span class="self">self</span>.take(len));
+ ret.freeze()
+ }
+
+ <span class="doccomment">/// Creates an adaptor which will read at most `limit` bytes from `self`.
+ ///
+ /// This function returns a new instance of `Buf` which will read at most
+ /// `limit` bytes.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{Buf, BufMut};
+ ///
+ /// let mut buf = b&quot;hello world&quot;[..].take(5);
+ /// let mut dst = vec![];
+ ///
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(dst, b&quot;hello&quot;);
+ ///
+ /// let mut buf = buf.into_inner();
+ /// dst.clear();
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(dst, b&quot; world&quot;);
+ /// ```
+ </span><span class="kw">fn </span>take(<span class="self">self</span>, limit: usize) -&gt; Take&lt;<span class="self">Self</span>&gt;
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ take::new(<span class="self">self</span>, limit)
+ }
+
+ <span class="doccomment">/// Creates an adaptor which will chain this buffer with another.
+ ///
+ /// The returned `Buf` instance will first consume all bytes from `self`.
+ /// Afterwards the output is equivalent to the output of next.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut chain = b&quot;hello &quot;[..].chain(&amp;b&quot;world&quot;[..]);
+ ///
+ /// let full = chain.copy_to_bytes(11);
+ /// assert_eq!(full.chunk(), b&quot;hello world&quot;);
+ /// ```
+ </span><span class="kw">fn </span>chain&lt;U: Buf&gt;(<span class="self">self</span>, next: U) -&gt; Chain&lt;<span class="self">Self</span>, U&gt;
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ Chain::new(<span class="self">self</span>, next)
+ }
+
+ <span class="doccomment">/// Creates an adaptor which implements the `Read` trait for `self`.
+ ///
+ /// This function returns a new value which implements `Read` by adapting
+ /// the `Read` trait functions to the `Buf` trait functions. Given that
+ /// `Buf` operations are infallible, none of the `Read` functions will
+ /// return with `Err`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{Bytes, Buf};
+ /// use std::io::Read;
+ ///
+ /// let buf = Bytes::from(&quot;hello world&quot;);
+ ///
+ /// let mut reader = buf.reader();
+ /// let mut dst = [0; 1024];
+ ///
+ /// let num = reader.read(&amp;mut dst).unwrap();
+ ///
+ /// assert_eq!(11, num);
+ /// assert_eq!(&amp;dst[..11], &amp;b&quot;hello world&quot;[..]);
+ /// ```
+ </span><span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+ #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">&quot;std&quot;</span>)))]
+ </span><span class="kw">fn </span>reader(<span class="self">self</span>) -&gt; Reader&lt;<span class="self">Self</span>&gt;
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ reader::new(<span class="self">self</span>)
+ }
+}
+
+<span class="macro">macro_rules! </span>deref_forward_buf {
+ () =&gt; {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ (<span class="kw-2">**</span><span class="self">self</span>).remaining()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ (<span class="kw-2">**</span><span class="self">self</span>).chunk()
+ }
+
+ <span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+ #[inline]
+ </span><span class="kw">fn </span>chunks_vectored&lt;<span class="lifetime">&#39;b</span>&gt;(<span class="kw-2">&amp;</span><span class="lifetime">&#39;b </span><span class="self">self</span>, dst: <span class="kw-2">&amp;mut </span>[IoSlice&lt;<span class="lifetime">&#39;b</span>&gt;]) -&gt; usize {
+ (<span class="kw-2">**</span><span class="self">self</span>).chunks_vectored(dst)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ (<span class="kw-2">**</span><span class="self">self</span>).advance(cnt)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>has_remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ (<span class="kw-2">**</span><span class="self">self</span>).has_remaining()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>copy_to_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, dst: <span class="kw-2">&amp;mut </span>[u8]) {
+ (<span class="kw-2">**</span><span class="self">self</span>).copy_to_slice(dst)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u8(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u8 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u8()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i8(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i8 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i8()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u16(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u16 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u16()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u16 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u16_le()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u16 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u16_ne()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i16(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i16 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i16()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i16 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i16_le()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i16 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i16_ne()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u32(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u32 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u32()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u32 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u32_le()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u32 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u32_ne()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i32(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i32 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i32()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i32 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i32_le()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i32 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i32_ne()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u64(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u64()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u64_le()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_u64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; u64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_u64_ne()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i64(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i64()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i64_le()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_i64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; i64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_i64_ne()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_uint(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; u64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_uint(nbytes)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_uint_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; u64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_uint_le(nbytes)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_uint_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; u64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_uint_ne(nbytes)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_int(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; i64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_int(nbytes)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_int_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; i64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_int_le(nbytes)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>get_int_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, nbytes: usize) -&gt; i64 {
+ (<span class="kw-2">**</span><span class="self">self</span>).get_int_ne(nbytes)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>copy_to_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) -&gt; <span class="kw">crate</span>::Bytes {
+ (<span class="kw-2">**</span><span class="self">self</span>).copy_to_bytes(len)
+ }
+ };
+}
+
+<span class="kw">impl</span>&lt;T: Buf + <span class="question-mark">?</span>Sized&gt; Buf <span class="kw">for </span><span class="kw-2">&amp;mut </span>T {
+ <span class="macro">deref_forward_buf!</span>();
+}
+
+<span class="kw">impl</span>&lt;T: Buf + <span class="question-mark">?</span>Sized&gt; Buf <span class="kw">for </span>Box&lt;T&gt; {
+ <span class="macro">deref_forward_buf!</span>();
+}
+
+<span class="kw">impl </span>Buf <span class="kw">for </span><span class="kw-2">&amp;</span>[u8] {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self
+ </span>}
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; cnt {
+ panic_advance(cnt, <span class="self">self</span>.len());
+ }
+
+ <span class="kw-2">*</span><span class="self">self </span>= <span class="kw-2">&amp;</span><span class="self">self</span>[cnt..];
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>copy_to_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, dst: <span class="kw-2">&amp;mut </span>[u8]) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; dst.len() {
+ panic_advance(dst.len(), <span class="self">self</span>.len());
+ }
+
+ dst.copy_from_slice(<span class="kw-2">&amp;</span><span class="self">self</span>[..dst.len()]);
+ <span class="self">self</span>.advance(dst.len());
+ }
+}
+
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">impl</span>&lt;T: AsRef&lt;[u8]&gt;&gt; Buf <span class="kw">for </span>std::io::Cursor&lt;T&gt; {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ saturating_sub_usize_u64(<span class="self">self</span>.get_ref().as_ref().len(), <span class="self">self</span>.position())
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">let </span>slice = <span class="self">self</span>.get_ref().as_ref();
+ <span class="kw">let </span>pos = min_u64_usize(<span class="self">self</span>.position(), slice.len());
+ <span class="kw-2">&amp;</span>slice[pos..]
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="kw">let </span>len = <span class="self">self</span>.get_ref().as_ref().len();
+ <span class="kw">let </span>pos = <span class="self">self</span>.position();
+
+ <span class="comment">// We intentionally allow `cnt == 0` here even if `pos &gt; len`.
+ </span><span class="kw">let </span>max_cnt = saturating_sub_usize_u64(len, pos);
+ <span class="kw">if </span>cnt &gt; max_cnt {
+ panic_advance(cnt, max_cnt);
+ }
+
+ <span class="comment">// This will not overflow because either `cnt == 0` or the sum is not
+ // greater than `len`.
+ </span><span class="self">self</span>.set_position(pos + cnt <span class="kw">as </span>u64);
+ }
+}
+
+<span class="comment">// The existence of this function makes the compiler catch if the Buf
+// trait is &quot;object-safe&quot; or not.
+</span><span class="kw">fn </span>_assert_trait_object(_b: <span class="kw-2">&amp;</span><span class="kw">dyn </span>Buf) {}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/buf_mut.rs.html b/src/bytes/buf/buf_mut.rs.html
new file mode 100644
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+++ b/src/bytes/buf/buf_mut.rs.html
@@ -0,0 +1,3284 @@
+<!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 `src/buf/buf_mut.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>buf_mut.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></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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+<span id="1629">1629</span>
+<span id="1630">1630</span>
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+<span id="1635">1635</span>
+<span id="1636">1636</span>
+<span id="1637">1637</span>
+<span id="1638">1638</span>
+<span id="1639">1639</span>
+<span id="1640">1640</span>
+<span id="1641">1641</span>
+</pre><pre class="rust"><code><span class="kw">use </span><span class="kw">crate</span>::buf::{limit, Chain, Limit, UninitSlice};
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">use </span><span class="kw">crate</span>::buf::{writer, Writer};
+<span class="kw">use crate</span>::{panic_advance, panic_does_not_fit};
+
+<span class="kw">use </span>core::{mem, ptr, usize};
+
+<span class="kw">use </span>alloc::{boxed::Box, vec::Vec};
+
+<span class="doccomment">/// A trait for values that provide sequential write access to bytes.
+///
+/// Write bytes to a buffer
+///
+/// A buffer stores bytes in memory such that write operations are infallible.
+/// The underlying storage may or may not be in contiguous memory. A `BufMut`
+/// value is a cursor into the buffer. Writing to `BufMut` advances the cursor
+/// position.
+///
+/// The simplest `BufMut` is a `Vec&lt;u8&gt;`.
+///
+/// ```
+/// use bytes::BufMut;
+///
+/// let mut buf = vec![];
+///
+/// buf.put(&amp;b&quot;hello world&quot;[..]);
+///
+/// assert_eq!(buf, b&quot;hello world&quot;);
+/// ```
+</span><span class="kw">pub unsafe trait </span>BufMut {
+ <span class="doccomment">/// Returns the number of bytes that can be written from the current
+ /// position until the end of the buffer is reached.
+ ///
+ /// This value is greater than or equal to the length of the slice returned
+ /// by `chunk_mut()`.
+ ///
+ /// Writing to a `BufMut` may involve allocating more memory on the fly.
+ /// Implementations may fail before reaching the number of bytes indicated
+ /// by this method if they encounter an allocation failure.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut dst = [0; 10];
+ /// let mut buf = &amp;mut dst[..];
+ ///
+ /// let original_remaining = buf.remaining_mut();
+ /// buf.put(&amp;b&quot;hello&quot;[..]);
+ ///
+ /// assert_eq!(original_remaining - 5, buf.remaining_mut());
+ /// ```
+ ///
+ /// # Implementer notes
+ ///
+ /// Implementations of `remaining_mut` should ensure that the return value
+ /// does not change unless a call is made to `advance_mut` or any other
+ /// function that is documented to change the `BufMut`&#39;s current position.
+ ///
+ /// # Note
+ ///
+ /// `remaining_mut` may return value smaller than actual available space.
+ </span><span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize;
+
+ <span class="doccomment">/// Advance the internal cursor of the BufMut
+ ///
+ /// The next call to `chunk_mut` will return a slice starting `cnt` bytes
+ /// further into the underlying buffer.
+ ///
+ /// # Safety
+ ///
+ /// The caller must ensure that the next `cnt` bytes of `chunk` are
+ /// initialized.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = Vec::with_capacity(16);
+ ///
+ /// // Write some data
+ /// buf.chunk_mut()[0..2].copy_from_slice(b&quot;he&quot;);
+ /// unsafe { buf.advance_mut(2) };
+ ///
+ /// // write more bytes
+ /// buf.chunk_mut()[0..3].copy_from_slice(b&quot;llo&quot;);
+ ///
+ /// unsafe { buf.advance_mut(3); }
+ ///
+ /// assert_eq!(5, buf.len());
+ /// assert_eq!(buf, b&quot;hello&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function **may** panic if `cnt &gt; self.remaining_mut()`.
+ ///
+ /// # Implementer notes
+ ///
+ /// It is recommended for implementations of `advance_mut` to panic if
+ /// `cnt &gt; self.remaining_mut()`. If the implementation does not panic,
+ /// the call must behave as if `cnt == self.remaining_mut()`.
+ ///
+ /// A call with `cnt == 0` should never panic and be a no-op.
+ </span><span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize);
+
+ <span class="doccomment">/// Returns true if there is space in `self` for more bytes.
+ ///
+ /// This is equivalent to `self.remaining_mut() != 0`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut dst = [0; 5];
+ /// let mut buf = &amp;mut dst[..];
+ ///
+ /// assert!(buf.has_remaining_mut());
+ ///
+ /// buf.put(&amp;b&quot;hello&quot;[..]);
+ ///
+ /// assert!(!buf.has_remaining_mut());
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>has_remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ <span class="self">self</span>.remaining_mut() &gt; <span class="number">0
+ </span>}
+
+ <span class="doccomment">/// Returns a mutable slice starting at the current BufMut position and of
+ /// length between 0 and `BufMut::remaining_mut()`. Note that this *can* be shorter than the
+ /// whole remainder of the buffer (this allows non-continuous implementation).
+ ///
+ /// This is a lower level function. Most operations are done with other
+ /// functions.
+ ///
+ /// The returned byte slice may represent uninitialized memory.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = Vec::with_capacity(16);
+ ///
+ /// unsafe {
+ /// // MaybeUninit::as_mut_ptr
+ /// buf.chunk_mut()[0..].as_mut_ptr().write(b&#39;h&#39;);
+ /// buf.chunk_mut()[1..].as_mut_ptr().write(b&#39;e&#39;);
+ ///
+ /// buf.advance_mut(2);
+ ///
+ /// buf.chunk_mut()[0..].as_mut_ptr().write(b&#39;l&#39;);
+ /// buf.chunk_mut()[1..].as_mut_ptr().write(b&#39;l&#39;);
+ /// buf.chunk_mut()[2..].as_mut_ptr().write(b&#39;o&#39;);
+ ///
+ /// buf.advance_mut(3);
+ /// }
+ ///
+ /// assert_eq!(5, buf.len());
+ /// assert_eq!(buf, b&quot;hello&quot;);
+ /// ```
+ ///
+ /// # Implementer notes
+ ///
+ /// This function should never panic. `chunk_mut` should return an empty
+ /// slice **if and only if** `remaining_mut()` returns 0. In other words,
+ /// `chunk_mut()` returning an empty slice implies that `remaining_mut()` will
+ /// return 0 and `remaining_mut()` returning 0 implies that `chunk_mut()` will
+ /// return an empty slice.
+ ///
+ /// This function may trigger an out-of-memory abort if it tries to allocate
+ /// memory and fails to do so.
+ </span><span class="comment">// The `chunk_mut` method was previously called `bytes_mut`. This alias makes the
+ // rename more easily discoverable.
+ </span><span class="attr">#[cfg_attr(docsrs, doc(alias = <span class="string">&quot;bytes_mut&quot;</span>))]
+ </span><span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice;
+
+ <span class="doccomment">/// Transfer bytes into `self` from `src` and advance the cursor by the
+ /// number of bytes written.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ ///
+ /// buf.put_u8(b&#39;h&#39;);
+ /// buf.put(&amp;b&quot;ello&quot;[..]);
+ /// buf.put(&amp;b&quot; world&quot;[..]);
+ ///
+ /// assert_eq!(buf, b&quot;hello world&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Panics if `self` does not have enough capacity to contain `src`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put&lt;T: <span class="kw">super</span>::Buf&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>src: T)
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ <span class="kw">if </span><span class="self">self</span>.remaining_mut() &lt; src.remaining() {
+ panic_advance(src.remaining(), <span class="self">self</span>.remaining_mut());
+ }
+
+ <span class="kw">while </span>src.has_remaining() {
+ <span class="kw">let </span>s = src.chunk();
+ <span class="kw">let </span>d = <span class="self">self</span>.chunk_mut();
+ <span class="kw">let </span>cnt = usize::min(s.len(), d.len());
+
+ d[..cnt].copy_from_slice(<span class="kw-2">&amp;</span>s[..cnt]);
+
+ <span class="comment">// SAFETY: We just initialized `cnt` bytes in `self`.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.advance_mut(cnt) };
+ src.advance(cnt);
+ }
+ }
+
+ <span class="doccomment">/// Transfer bytes into `self` from `src` and advance the cursor by the
+ /// number of bytes written.
+ ///
+ /// `self` must have enough remaining capacity to contain all of `src`.
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut dst = [0; 6];
+ ///
+ /// {
+ /// let mut buf = &amp;mut dst[..];
+ /// buf.put_slice(b&quot;hello&quot;);
+ ///
+ /// assert_eq!(1, buf.remaining_mut());
+ /// }
+ ///
+ /// assert_eq!(b&quot;hello\0&quot;, &amp;dst);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>src: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="kw">if </span><span class="self">self</span>.remaining_mut() &lt; src.len() {
+ panic_advance(src.len(), <span class="self">self</span>.remaining_mut());
+ }
+
+ <span class="kw">while </span>!src.is_empty() {
+ <span class="kw">let </span>dst = <span class="self">self</span>.chunk_mut();
+ <span class="kw">let </span>cnt = usize::min(src.len(), dst.len());
+
+ dst[..cnt].copy_from_slice(<span class="kw-2">&amp;</span>src[..cnt]);
+ src = <span class="kw-2">&amp;</span>src[cnt..];
+
+ <span class="comment">// SAFETY: We just initialized `cnt` bytes in `self`.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.advance_mut(cnt) };
+ }
+ }
+
+ <span class="doccomment">/// Put `cnt` bytes `val` into `self`.
+ ///
+ /// Logically equivalent to calling `self.put_u8(val)` `cnt` times, but may work faster.
+ ///
+ /// `self` must have at least `cnt` remaining capacity.
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut dst = [0; 6];
+ ///
+ /// {
+ /// let mut buf = &amp;mut dst[..];
+ /// buf.put_bytes(b&#39;a&#39;, 4);
+ ///
+ /// assert_eq!(2, buf.remaining_mut());
+ /// }
+ ///
+ /// assert_eq!(b&quot;aaaa\0\0&quot;, &amp;dst);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, val: u8, <span class="kw-2">mut </span>cnt: usize) {
+ <span class="kw">if </span><span class="self">self</span>.remaining_mut() &lt; cnt {
+ panic_advance(cnt, <span class="self">self</span>.remaining_mut());
+ }
+
+ <span class="kw">while </span>cnt &gt; <span class="number">0 </span>{
+ <span class="kw">let </span>dst = <span class="self">self</span>.chunk_mut();
+ <span class="kw">let </span>dst_len = usize::min(dst.len(), cnt);
+ <span class="comment">// SAFETY: The pointer is valid for `dst_len &lt;= dst.len()` bytes.
+ </span><span class="kw">unsafe </span>{ core::ptr::write_bytes(dst.as_mut_ptr(), val, dst_len) };
+ <span class="comment">// SAFETY: We just initialized `dst_len` bytes in `self`.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.advance_mut(dst_len) };
+ cnt -= dst_len;
+ }
+ }
+
+ <span class="doccomment">/// Writes an unsigned 8 bit integer to `self`.
+ ///
+ /// The current position is advanced by 1.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u8(0x01);
+ /// assert_eq!(buf, b&quot;\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u8(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u8) {
+ <span class="kw">let </span>src = [n];
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>src);
+ }
+
+ <span class="doccomment">/// Writes a signed 8 bit integer to `self`.
+ ///
+ /// The current position is advanced by 1.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i8(0x01);
+ /// assert_eq!(buf, b&quot;\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i8(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i8) {
+ <span class="kw">let </span>src = [n <span class="kw">as </span>u8];
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>src)
+ }
+
+ <span class="doccomment">/// Writes an unsigned 16 bit integer to `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u16(0x0809);
+ /// assert_eq!(buf, b&quot;\x08\x09&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u16(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u16) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 16 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u16_le(0x0809);
+ /// assert_eq!(buf, b&quot;\x09\x08&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u16) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 16 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u16_ne(0x0809);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x08\x09&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x09\x08&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u16) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 16 bit integer to `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i16(0x0809);
+ /// assert_eq!(buf, b&quot;\x08\x09&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i16(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i16) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 16 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i16_le(0x0809);
+ /// assert_eq!(buf, b&quot;\x09\x08&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i16) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 16 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 2.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i16_ne(0x0809);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x08\x09&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x09\x08&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i16) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 32 bit integer to `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u32(0x0809A0A1);
+ /// assert_eq!(buf, b&quot;\x08\x09\xA0\xA1&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u32(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u32) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 32 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u32_le(0x0809A0A1);
+ /// assert_eq!(buf, b&quot;\xA1\xA0\x09\x08&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u32) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 32 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u32_ne(0x0809A0A1);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x08\x09\xA0\xA1&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\xA1\xA0\x09\x08&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u32) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 32 bit integer to `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i32(0x0809A0A1);
+ /// assert_eq!(buf, b&quot;\x08\x09\xA0\xA1&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i32(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i32) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 32 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i32_le(0x0809A0A1);
+ /// assert_eq!(buf, b&quot;\xA1\xA0\x09\x08&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i32) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 32 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i32_ne(0x0809A0A1);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x08\x09\xA0\xA1&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\xA1\xA0\x09\x08&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i32) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 64 bit integer to `self` in the big-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u64(0x0102030405060708);
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u64(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 64 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u64_le(0x0102030405060708);
+ /// assert_eq!(buf, b&quot;\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 64 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u64_ne(0x0102030405060708);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 64 bit integer to `self` in the big-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i64(0x0102030405060708);
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i64(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 64 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i64_le(0x0102030405060708);
+ /// assert_eq!(buf, b&quot;\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 64 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i64_ne(0x0102030405060708);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 128 bit integer to `self` in the big-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u128(0x01020304050607080910111213141516);
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u128(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u128) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 128 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u128_le(0x01020304050607080910111213141516);
+ /// assert_eq!(buf, b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u128_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u128) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned 128 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_u128_ne(0x01020304050607080910111213141516);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u128_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u128) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 128 bit integer to `self` in the big-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i128(0x01020304050607080910111213141516);
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i128(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i128) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 128 bit integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i128_le(0x01020304050607080910111213141516);
+ /// assert_eq!(buf, b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i128_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i128) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_le_bytes())
+ }
+
+ <span class="doccomment">/// Writes a signed 128 bit integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 16.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_i128_ne(0x01020304050607080910111213141516);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x01\x02\x03\x04\x05\x06\x07\x08\x09\x10\x11\x12\x13\x14\x15\x16&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x16\x15\x14\x13\x12\x11\x10\x09\x08\x07\x06\x05\x04\x03\x02\x01&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i128_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i128) {
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_ne_bytes())
+ }
+
+ <span class="doccomment">/// Writes an unsigned n-byte integer to `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_uint(0x010203, 3);
+ /// assert_eq!(buf, b&quot;\x01\x02\x03&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self` or if `nbytes` is greater than 8.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_uint(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64, nbytes: usize) {
+ <span class="kw">let </span>start = <span class="kw">match </span>mem::size_of_val(<span class="kw-2">&amp;</span>n).checked_sub(nbytes) {
+ <span class="prelude-val">Some</span>(start) =&gt; start,
+ <span class="prelude-val">None </span>=&gt; panic_does_not_fit(nbytes, mem::size_of_val(<span class="kw-2">&amp;</span>n)),
+ };
+
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes()[start..]);
+ }
+
+ <span class="doccomment">/// Writes an unsigned n-byte integer to `self` in the little-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_uint_le(0x010203, 3);
+ /// assert_eq!(buf, b&quot;\x03\x02\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self` or if `nbytes` is greater than 8.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_uint_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64, nbytes: usize) {
+ <span class="kw">let </span>slice = n.to_le_bytes();
+ <span class="kw">let </span>slice = <span class="kw">match </span>slice.get(..nbytes) {
+ <span class="prelude-val">Some</span>(slice) =&gt; slice,
+ <span class="prelude-val">None </span>=&gt; panic_does_not_fit(nbytes, slice.len()),
+ };
+
+ <span class="self">self</span>.put_slice(slice);
+ }
+
+ <span class="doccomment">/// Writes an unsigned n-byte integer to `self` in the native-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_uint_ne(0x010203, 3);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x01\x02\x03&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x03\x02\x01&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self` or if `nbytes` is greater than 8.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_uint_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64, nbytes: usize) {
+ <span class="kw">if </span><span class="macro">cfg!</span>(target_endian = <span class="string">&quot;big&quot;</span>) {
+ <span class="self">self</span>.put_uint(n, nbytes)
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.put_uint_le(n, nbytes)
+ }
+ }
+
+ <span class="doccomment">/// Writes low `nbytes` of a signed integer to `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_int(0x0504010203, 3);
+ /// assert_eq!(buf, b&quot;\x01\x02\x03&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self` or if `nbytes` is greater than 8.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_int(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64, nbytes: usize) {
+ <span class="kw">let </span>start = <span class="kw">match </span>mem::size_of_val(<span class="kw-2">&amp;</span>n).checked_sub(nbytes) {
+ <span class="prelude-val">Some</span>(start) =&gt; start,
+ <span class="prelude-val">None </span>=&gt; panic_does_not_fit(nbytes, mem::size_of_val(<span class="kw-2">&amp;</span>n)),
+ };
+
+ <span class="self">self</span>.put_slice(<span class="kw-2">&amp;</span>n.to_be_bytes()[start..]);
+ }
+
+ <span class="doccomment">/// Writes low `nbytes` of a signed integer to `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_int_le(0x0504010203, 3);
+ /// assert_eq!(buf, b&quot;\x03\x02\x01&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self` or if `nbytes` is greater than 8.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_int_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64, nbytes: usize) {
+ <span class="kw">let </span>slice = n.to_le_bytes();
+ <span class="kw">let </span>slice = <span class="kw">match </span>slice.get(..nbytes) {
+ <span class="prelude-val">Some</span>(slice) =&gt; slice,
+ <span class="prelude-val">None </span>=&gt; panic_does_not_fit(nbytes, slice.len()),
+ };
+
+ <span class="self">self</span>.put_slice(slice);
+ }
+
+ <span class="doccomment">/// Writes low `nbytes` of a signed integer to `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by `nbytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_int_ne(0x010203, 3);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x01\x02\x03&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x03\x02\x01&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self` or if `nbytes` is greater than 8.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_int_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64, nbytes: usize) {
+ <span class="kw">if </span><span class="macro">cfg!</span>(target_endian = <span class="string">&quot;big&quot;</span>) {
+ <span class="self">self</span>.put_int(n, nbytes)
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.put_int_le(n, nbytes)
+ }
+ }
+
+ <span class="doccomment">/// Writes an IEEE754 single-precision (4 bytes) floating point number to
+ /// `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_f32(1.2f32);
+ /// assert_eq!(buf, b&quot;\x3F\x99\x99\x9A&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_f32(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: f32) {
+ <span class="self">self</span>.put_u32(n.to_bits());
+ }
+
+ <span class="doccomment">/// Writes an IEEE754 single-precision (4 bytes) floating point number to
+ /// `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_f32_le(1.2f32);
+ /// assert_eq!(buf, b&quot;\x9A\x99\x99\x3F&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_f32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: f32) {
+ <span class="self">self</span>.put_u32_le(n.to_bits());
+ }
+
+ <span class="doccomment">/// Writes an IEEE754 single-precision (4 bytes) floating point number to
+ /// `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 4.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_f32_ne(1.2f32);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x3F\x99\x99\x9A&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x9A\x99\x99\x3F&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_f32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: f32) {
+ <span class="self">self</span>.put_u32_ne(n.to_bits());
+ }
+
+ <span class="doccomment">/// Writes an IEEE754 double-precision (8 bytes) floating point number to
+ /// `self` in big-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_f64(1.2f64);
+ /// assert_eq!(buf, b&quot;\x3F\xF3\x33\x33\x33\x33\x33\x33&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_f64(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: f64) {
+ <span class="self">self</span>.put_u64(n.to_bits());
+ }
+
+ <span class="doccomment">/// Writes an IEEE754 double-precision (8 bytes) floating point number to
+ /// `self` in little-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_f64_le(1.2f64);
+ /// assert_eq!(buf, b&quot;\x33\x33\x33\x33\x33\x33\xF3\x3F&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_f64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: f64) {
+ <span class="self">self</span>.put_u64_le(n.to_bits());
+ }
+
+ <span class="doccomment">/// Writes an IEEE754 double-precision (8 bytes) floating point number to
+ /// `self` in native-endian byte order.
+ ///
+ /// The current position is advanced by 8.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![];
+ /// buf.put_f64_ne(1.2f64);
+ /// if cfg!(target_endian = &quot;big&quot;) {
+ /// assert_eq!(buf, b&quot;\x3F\xF3\x33\x33\x33\x33\x33\x33&quot;);
+ /// } else {
+ /// assert_eq!(buf, b&quot;\x33\x33\x33\x33\x33\x33\xF3\x3F&quot;);
+ /// }
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// This function panics if there is not enough remaining capacity in
+ /// `self`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_f64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: f64) {
+ <span class="self">self</span>.put_u64_ne(n.to_bits());
+ }
+
+ <span class="doccomment">/// Creates an adaptor which can write at most `limit` bytes to `self`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let arr = &amp;mut [0u8; 128][..];
+ /// assert_eq!(arr.remaining_mut(), 128);
+ ///
+ /// let dst = arr.limit(10);
+ /// assert_eq!(dst.remaining_mut(), 10);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>limit(<span class="self">self</span>, limit: usize) -&gt; Limit&lt;<span class="self">Self</span>&gt;
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ limit::new(<span class="self">self</span>, limit)
+ }
+
+ <span class="doccomment">/// Creates an adaptor which implements the `Write` trait for `self`.
+ ///
+ /// This function returns a new value which implements `Write` by adapting
+ /// the `Write` trait functions to the `BufMut` trait functions. Given that
+ /// `BufMut` operations are infallible, none of the `Write` functions will
+ /// return with `Err`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ /// use std::io::Write;
+ ///
+ /// let mut buf = vec![].writer();
+ ///
+ /// let num = buf.write(&amp;b&quot;hello world&quot;[..]).unwrap();
+ /// assert_eq!(11, num);
+ ///
+ /// let buf = buf.into_inner();
+ ///
+ /// assert_eq!(*buf, b&quot;hello world&quot;[..]);
+ /// ```
+ </span><span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+ #[cfg_attr(docsrs, doc(cfg(feature = <span class="string">&quot;std&quot;</span>)))]
+ #[inline]
+ </span><span class="kw">fn </span>writer(<span class="self">self</span>) -&gt; Writer&lt;<span class="self">Self</span>&gt;
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ writer::new(<span class="self">self</span>)
+ }
+
+ <span class="doccomment">/// Creates an adapter which will chain this buffer with another.
+ ///
+ /// The returned `BufMut` instance will first write to all bytes from
+ /// `self`. Afterwards, it will write to `next`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut a = [0u8; 5];
+ /// let mut b = [0u8; 6];
+ ///
+ /// let mut chain = (&amp;mut a[..]).chain_mut(&amp;mut b[..]);
+ ///
+ /// chain.put_slice(b&quot;hello world&quot;);
+ ///
+ /// assert_eq!(&amp;a[..], b&quot;hello&quot;);
+ /// assert_eq!(&amp;b[..], b&quot; world&quot;);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>chain_mut&lt;U: BufMut&gt;(<span class="self">self</span>, next: U) -&gt; Chain&lt;<span class="self">Self</span>, U&gt;
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ Chain::new(<span class="self">self</span>, next)
+ }
+}
+
+<span class="macro">macro_rules! </span>deref_forward_bufmut {
+ () =&gt; {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ (<span class="kw-2">**</span><span class="self">self</span>).remaining_mut()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ (<span class="kw-2">**</span><span class="self">self</span>).chunk_mut()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ (<span class="kw-2">**</span><span class="self">self</span>).advance_mut(cnt)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_slice(src)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u8(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u8) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u8(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i8(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i8) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i8(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u16(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u16) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u16(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u16) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u16_le(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u16) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u16_ne(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i16(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i16) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i16(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i16_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i16) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i16_le(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i16_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i16) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i16_ne(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u32(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u32) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u32(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u32) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u32_le(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u32) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u32_ne(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i32(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i32) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i32(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i32_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i32) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i32_le(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i32_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i32) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i32_ne(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u64(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u64(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u64_le(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_u64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: u64) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_u64_ne(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i64(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i64(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i64_le(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i64_le(n)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_i64_ne(<span class="kw-2">&amp;mut </span><span class="self">self</span>, n: i64) {
+ (<span class="kw-2">**</span><span class="self">self</span>).put_i64_ne(n)
+ }
+ };
+}
+
+<span class="kw">unsafe impl</span>&lt;T: BufMut + <span class="question-mark">?</span>Sized&gt; BufMut <span class="kw">for </span><span class="kw-2">&amp;mut </span>T {
+ <span class="macro">deref_forward_bufmut!</span>();
+}
+
+<span class="kw">unsafe impl</span>&lt;T: BufMut + <span class="question-mark">?</span>Sized&gt; BufMut <span class="kw">for </span>Box&lt;T&gt; {
+ <span class="macro">deref_forward_bufmut!</span>();
+}
+
+<span class="kw">unsafe impl </span>BufMut <span class="kw">for </span><span class="kw-2">&amp;mut </span>[u8] {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ UninitSlice::new(<span class="self">self</span>)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; cnt {
+ panic_advance(cnt, <span class="self">self</span>.len());
+ }
+
+ <span class="comment">// Lifetime dance taken from `impl Write for &amp;mut [u8]`.
+ </span><span class="kw">let </span>(<span class="kw">_</span>, b) = core::mem::replace(<span class="self">self</span>, <span class="kw-2">&amp;mut </span>[]).split_at_mut(cnt);
+ <span class="kw-2">*</span><span class="self">self </span>= b;
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; src.len() {
+ panic_advance(src.len(), <span class="self">self</span>.len());
+ }
+
+ <span class="self">self</span>[..src.len()].copy_from_slice(src);
+ <span class="comment">// SAFETY: We just initialized `src.len()` bytes.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.advance_mut(src.len()) };
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, val: u8, cnt: usize) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; cnt {
+ panic_advance(cnt, <span class="self">self</span>.len());
+ }
+
+ <span class="comment">// SAFETY: We just checked that the pointer is valid for `cnt` bytes.
+ </span><span class="kw">unsafe </span>{
+ ptr::write_bytes(<span class="self">self</span>.as_mut_ptr(), val, cnt);
+ <span class="self">self</span>.advance_mut(cnt);
+ }
+ }
+}
+
+<span class="kw">unsafe impl </span>BufMut <span class="kw">for </span><span class="kw-2">&amp;mut </span>[core::mem::MaybeUninit&lt;u8&gt;] {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ UninitSlice::uninit(<span class="self">self</span>)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; cnt {
+ panic_advance(cnt, <span class="self">self</span>.len());
+ }
+
+ <span class="comment">// Lifetime dance taken from `impl Write for &amp;mut [u8]`.
+ </span><span class="kw">let </span>(<span class="kw">_</span>, b) = core::mem::replace(<span class="self">self</span>, <span class="kw-2">&amp;mut </span>[]).split_at_mut(cnt);
+ <span class="kw-2">*</span><span class="self">self </span>= b;
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; src.len() {
+ panic_advance(src.len(), <span class="self">self</span>.len());
+ }
+
+ <span class="comment">// SAFETY: We just checked that the pointer is valid for `src.len()` bytes.
+ </span><span class="kw">unsafe </span>{
+ ptr::copy_nonoverlapping(src.as_ptr(), <span class="self">self</span>.as_mut_ptr().cast(), src.len());
+ <span class="self">self</span>.advance_mut(src.len());
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, val: u8, cnt: usize) {
+ <span class="kw">if </span><span class="self">self</span>.len() &lt; cnt {
+ panic_advance(cnt, <span class="self">self</span>.len());
+ }
+
+ <span class="comment">// SAFETY: We just checked that the pointer is valid for `cnt` bytes.
+ </span><span class="kw">unsafe </span>{
+ ptr::write_bytes(<span class="self">self</span>.as_mut_ptr() <span class="kw">as </span><span class="kw-2">*mut </span>u8, val, cnt);
+ <span class="self">self</span>.advance_mut(cnt);
+ }
+ }
+}
+
+<span class="kw">unsafe impl </span>BufMut <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="comment">// A vector can never have more than isize::MAX bytes
+ </span>core::isize::MAX <span class="kw">as </span>usize - <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="kw">let </span>len = <span class="self">self</span>.len();
+ <span class="kw">let </span>remaining = <span class="self">self</span>.capacity() - len;
+
+ <span class="kw">if </span>remaining &lt; cnt {
+ panic_advance(cnt, remaining);
+ }
+
+ <span class="comment">// Addition will not overflow since the sum is at most the capacity.
+ </span><span class="self">self</span>.set_len(len + cnt);
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ <span class="kw">if </span><span class="self">self</span>.capacity() == <span class="self">self</span>.len() {
+ <span class="self">self</span>.reserve(<span class="number">64</span>); <span class="comment">// Grow the vec
+ </span>}
+
+ <span class="kw">let </span>cap = <span class="self">self</span>.capacity();
+ <span class="kw">let </span>len = <span class="self">self</span>.len();
+
+ <span class="kw">let </span>ptr = <span class="self">self</span>.as_mut_ptr();
+ <span class="comment">// SAFETY: Since `ptr` is valid for `cap` bytes, `ptr.add(len)` must be
+ // valid for `cap - len` bytes. The subtraction will not underflow since
+ // `len &lt;= cap`.
+ </span><span class="kw">unsafe </span>{ UninitSlice::from_raw_parts_mut(ptr.add(len), cap - len) }
+ }
+
+ <span class="comment">// Specialize these methods so they can skip checking `remaining_mut`
+ // and `advance_mut`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>put&lt;T: <span class="kw">super</span>::Buf&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>src: T)
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ <span class="comment">// In case the src isn&#39;t contiguous, reserve upfront.
+ </span><span class="self">self</span>.reserve(src.remaining());
+
+ <span class="kw">while </span>src.has_remaining() {
+ <span class="kw">let </span>s = src.chunk();
+ <span class="kw">let </span>l = s.len();
+ <span class="self">self</span>.extend_from_slice(s);
+ src.advance(l);
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="self">self</span>.extend_from_slice(src);
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>put_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, val: u8, cnt: usize) {
+ <span class="comment">// If the addition overflows, then the `resize` will fail.
+ </span><span class="kw">let </span>new_len = <span class="self">self</span>.len().saturating_add(cnt);
+ <span class="self">self</span>.resize(new_len, val);
+ }
+}
+
+<span class="comment">// The existence of this function makes the compiler catch if the BufMut
+// trait is &quot;object-safe&quot; or not.
+</span><span class="kw">fn </span>_assert_trait_object(_b: <span class="kw-2">&amp;</span><span class="kw">dyn </span>BufMut) {}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/chain.rs.html b/src/bytes/buf/chain.rs.html
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+++ b/src/bytes/buf/chain.rs.html
@@ -0,0 +1,482 @@
+<!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 `src/buf/chain.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>chain.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></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>::buf::{IntoIter, UninitSlice};
+<span class="kw">use crate</span>::{Buf, BufMut, Bytes};
+
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">use </span>std::io::IoSlice;
+
+<span class="doccomment">/// A `Chain` sequences two buffers.
+///
+/// `Chain` is an adapter that links two underlying buffers and provides a
+/// continuous view across both buffers. It is able to sequence either immutable
+/// buffers ([`Buf`] values) or mutable buffers ([`BufMut`] values).
+///
+/// This struct is generally created by calling [`Buf::chain`]. Please see that
+/// function&#39;s documentation for more detail.
+///
+/// # Examples
+///
+/// ```
+/// use bytes::{Bytes, Buf};
+///
+/// let mut buf = (&amp;b&quot;hello &quot;[..])
+/// .chain(&amp;b&quot;world&quot;[..]);
+///
+/// let full: Bytes = buf.copy_to_bytes(11);
+/// assert_eq!(full[..], b&quot;hello world&quot;[..]);
+/// ```
+///
+/// [`Buf::chain`]: Buf::chain
+</span><span class="attr">#[derive(Debug)]
+</span><span class="kw">pub struct </span>Chain&lt;T, U&gt; {
+ a: T,
+ b: U,
+}
+
+<span class="kw">impl</span>&lt;T, U&gt; Chain&lt;T, U&gt; {
+ <span class="doccomment">/// Creates a new `Chain` sequencing the provided values.
+ </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new(a: T, b: U) -&gt; Chain&lt;T, U&gt; {
+ Chain { a, b }
+ }
+
+ <span class="doccomment">/// Gets a reference to the first underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let buf = (&amp;b&quot;hello&quot;[..])
+ /// .chain(&amp;b&quot;world&quot;[..]);
+ ///
+ /// assert_eq!(buf.first_ref()[..], b&quot;hello&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>first_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.a
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the first underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = (&amp;b&quot;hello&quot;[..])
+ /// .chain(&amp;b&quot;world&quot;[..]);
+ ///
+ /// buf.first_mut().advance(1);
+ ///
+ /// let full = buf.copy_to_bytes(9);
+ /// assert_eq!(full, b&quot;elloworld&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>first_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.a
+ }
+
+ <span class="doccomment">/// Gets a reference to the last underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let buf = (&amp;b&quot;hello&quot;[..])
+ /// .chain(&amp;b&quot;world&quot;[..]);
+ ///
+ /// assert_eq!(buf.last_ref()[..], b&quot;world&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>last_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>U {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.b
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the last underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = (&amp;b&quot;hello &quot;[..])
+ /// .chain(&amp;b&quot;world&quot;[..]);
+ ///
+ /// buf.last_mut().advance(1);
+ ///
+ /// let full = buf.copy_to_bytes(10);
+ /// assert_eq!(full, b&quot;hello orld&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>last_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>U {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.b
+ }
+
+ <span class="doccomment">/// Consumes this `Chain`, returning the underlying values.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Buf;
+ ///
+ /// let chain = (&amp;b&quot;hello&quot;[..])
+ /// .chain(&amp;b&quot;world&quot;[..]);
+ ///
+ /// let (first, last) = chain.into_inner();
+ /// assert_eq!(first[..], b&quot;hello&quot;[..]);
+ /// assert_eq!(last[..], b&quot;world&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -&gt; (T, U) {
+ (<span class="self">self</span>.a, <span class="self">self</span>.b)
+ }
+}
+
+<span class="kw">impl</span>&lt;T, U&gt; Buf <span class="kw">for </span>Chain&lt;T, U&gt;
+<span class="kw">where
+ </span>T: Buf,
+ U: Buf,
+{
+ <span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.a.remaining().saturating_add(<span class="self">self</span>.b.remaining())
+ }
+
+ <span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">if </span><span class="self">self</span>.a.has_remaining() {
+ <span class="self">self</span>.a.chunk()
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.b.chunk()
+ }
+ }
+
+ <span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>cnt: usize) {
+ <span class="kw">let </span>a_rem = <span class="self">self</span>.a.remaining();
+
+ <span class="kw">if </span>a_rem != <span class="number">0 </span>{
+ <span class="kw">if </span>a_rem &gt;= cnt {
+ <span class="self">self</span>.a.advance(cnt);
+ <span class="kw">return</span>;
+ }
+
+ <span class="comment">// Consume what is left of a
+ </span><span class="self">self</span>.a.advance(a_rem);
+
+ cnt -= a_rem;
+ }
+
+ <span class="self">self</span>.b.advance(cnt);
+ }
+
+ <span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+ </span><span class="kw">fn </span>chunks_vectored&lt;<span class="lifetime">&#39;a</span>&gt;(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="self">self</span>, dst: <span class="kw-2">&amp;mut </span>[IoSlice&lt;<span class="lifetime">&#39;a</span>&gt;]) -&gt; usize {
+ <span class="kw">let </span><span class="kw-2">mut </span>n = <span class="self">self</span>.a.chunks_vectored(dst);
+ n += <span class="self">self</span>.b.chunks_vectored(<span class="kw-2">&amp;mut </span>dst[n..]);
+ n
+ }
+
+ <span class="kw">fn </span>copy_to_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>a_rem = <span class="self">self</span>.a.remaining();
+ <span class="kw">if </span>a_rem &gt;= len {
+ <span class="self">self</span>.a.copy_to_bytes(len)
+ } <span class="kw">else if </span>a_rem == <span class="number">0 </span>{
+ <span class="self">self</span>.b.copy_to_bytes(len)
+ } <span class="kw">else </span>{
+ <span class="macro">assert!</span>(
+ len - a_rem &lt;= <span class="self">self</span>.b.remaining(),
+ <span class="string">&quot;`len` greater than remaining&quot;
+ </span>);
+ <span class="kw">let </span><span class="kw-2">mut </span>ret = <span class="kw">crate</span>::BytesMut::with_capacity(len);
+ ret.put(<span class="kw-2">&amp;mut </span><span class="self">self</span>.a);
+ ret.put((<span class="kw-2">&amp;mut </span><span class="self">self</span>.b).take(len - a_rem));
+ ret.freeze()
+ }
+ }
+}
+
+<span class="kw">unsafe impl</span>&lt;T, U&gt; BufMut <span class="kw">for </span>Chain&lt;T, U&gt;
+<span class="kw">where
+ </span>T: BufMut,
+ U: BufMut,
+{
+ <span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.a
+ .remaining_mut()
+ .saturating_add(<span class="self">self</span>.b.remaining_mut())
+ }
+
+ <span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ <span class="kw">if </span><span class="self">self</span>.a.has_remaining_mut() {
+ <span class="self">self</span>.a.chunk_mut()
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.b.chunk_mut()
+ }
+ }
+
+ <span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>cnt: usize) {
+ <span class="kw">let </span>a_rem = <span class="self">self</span>.a.remaining_mut();
+
+ <span class="kw">if </span>a_rem != <span class="number">0 </span>{
+ <span class="kw">if </span>a_rem &gt;= cnt {
+ <span class="self">self</span>.a.advance_mut(cnt);
+ <span class="kw">return</span>;
+ }
+
+ <span class="comment">// Consume what is left of a
+ </span><span class="self">self</span>.a.advance_mut(a_rem);
+
+ cnt -= a_rem;
+ }
+
+ <span class="self">self</span>.b.advance_mut(cnt);
+ }
+}
+
+<span class="kw">impl</span>&lt;T, U&gt; IntoIterator <span class="kw">for </span>Chain&lt;T, U&gt;
+<span class="kw">where
+ </span>T: Buf,
+ U: Buf,
+{
+ <span class="kw">type </span>Item = u8;
+ <span class="kw">type </span>IntoIter = IntoIter&lt;Chain&lt;T, U&gt;&gt;;
+
+ <span class="kw">fn </span>into_iter(<span class="self">self</span>) -&gt; <span class="self">Self</span>::IntoIter {
+ IntoIter::new(<span class="self">self</span>)
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
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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 `src/buf/iter.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>iter.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></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>::Buf;
+
+<span class="doccomment">/// Iterator over the bytes contained by the buffer.
+///
+/// # Examples
+///
+/// Basic usage:
+///
+/// ```
+/// use bytes::Bytes;
+///
+/// let buf = Bytes::from(&amp;b&quot;abc&quot;[..]);
+/// let mut iter = buf.into_iter();
+///
+/// assert_eq!(iter.next(), Some(b&#39;a&#39;));
+/// assert_eq!(iter.next(), Some(b&#39;b&#39;));
+/// assert_eq!(iter.next(), Some(b&#39;c&#39;));
+/// assert_eq!(iter.next(), None);
+/// ```
+</span><span class="attr">#[derive(Debug)]
+</span><span class="kw">pub struct </span>IntoIter&lt;T&gt; {
+ inner: T,
+}
+
+<span class="kw">impl</span>&lt;T&gt; IntoIter&lt;T&gt; {
+ <span class="doccomment">/// Creates an iterator over the bytes contained by the buffer.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let buf = Bytes::from_static(b&quot;abc&quot;);
+ /// let mut iter = buf.into_iter();
+ ///
+ /// assert_eq!(iter.next(), Some(b&#39;a&#39;));
+ /// assert_eq!(iter.next(), Some(b&#39;b&#39;));
+ /// assert_eq!(iter.next(), Some(b&#39;c&#39;));
+ /// assert_eq!(iter.next(), None);
+ /// ```
+ </span><span class="kw">pub fn </span>new(inner: T) -&gt; IntoIter&lt;T&gt; {
+ IntoIter { inner }
+ }
+
+ <span class="doccomment">/// Consumes this `IntoIter`, returning the underlying value.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::{Buf, Bytes};
+ ///
+ /// let buf = Bytes::from(&amp;b&quot;abc&quot;[..]);
+ /// let mut iter = buf.into_iter();
+ ///
+ /// assert_eq!(iter.next(), Some(b&#39;a&#39;));
+ ///
+ /// let buf = iter.into_inner();
+ /// assert_eq!(2, buf.remaining());
+ /// ```
+ </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -&gt; T {
+ <span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Gets a reference to the underlying `Buf`.
+ ///
+ /// It is inadvisable to directly read from the underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::{Buf, Bytes};
+ ///
+ /// let buf = Bytes::from(&amp;b&quot;abc&quot;[..]);
+ /// let mut iter = buf.into_iter();
+ ///
+ /// assert_eq!(iter.next(), Some(b&#39;a&#39;));
+ ///
+ /// assert_eq!(2, iter.get_ref().remaining());
+ /// ```
+ </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the underlying `Buf`.
+ ///
+ /// It is inadvisable to directly read from the underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::{Buf, BytesMut};
+ ///
+ /// let buf = BytesMut::from(&amp;b&quot;abc&quot;[..]);
+ /// let mut iter = buf.into_iter();
+ ///
+ /// assert_eq!(iter.next(), Some(b&#39;a&#39;));
+ ///
+ /// iter.get_mut().advance(1);
+ ///
+ /// assert_eq!(iter.next(), Some(b&#39;c&#39;));
+ /// ```
+ </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.inner
+ }
+}
+
+<span class="kw">impl</span>&lt;T: Buf&gt; Iterator <span class="kw">for </span>IntoIter&lt;T&gt; {
+ <span class="kw">type </span>Item = u8;
+
+ <span class="kw">fn </span>next(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="prelude-ty">Option</span>&lt;u8&gt; {
+ <span class="kw">if </span>!<span class="self">self</span>.inner.has_remaining() {
+ <span class="kw">return </span><span class="prelude-val">None</span>;
+ }
+
+ <span class="kw">let </span>b = <span class="self">self</span>.inner.chunk()[<span class="number">0</span>];
+ <span class="self">self</span>.inner.advance(<span class="number">1</span>);
+
+ <span class="prelude-val">Some</span>(b)
+ }
+
+ <span class="kw">fn </span>size_hint(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; (usize, <span class="prelude-ty">Option</span>&lt;usize&gt;) {
+ <span class="kw">let </span>rem = <span class="self">self</span>.inner.remaining();
+ (rem, <span class="prelude-val">Some</span>(rem))
+ }
+}
+
+<span class="kw">impl</span>&lt;T: Buf&gt; ExactSizeIterator <span class="kw">for </span>IntoIter&lt;T&gt; {}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/limit.rs.html b/src/bytes/buf/limit.rs.html
new file mode 100644
index 0000000..c4ed6d6
--- /dev/null
+++ b/src/bytes/buf/limit.rs.html
@@ -0,0 +1,152 @@
+<!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 `src/buf/limit.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>limit.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+<span id="23">23</span>
+<span id="24">24</span>
+<span id="25">25</span>
+<span id="26">26</span>
+<span id="27">27</span>
+<span id="28">28</span>
+<span id="29">29</span>
+<span id="30">30</span>
+<span id="31">31</span>
+<span id="32">32</span>
+<span id="33">33</span>
+<span id="34">34</span>
+<span id="35">35</span>
+<span id="36">36</span>
+<span id="37">37</span>
+<span id="38">38</span>
+<span id="39">39</span>
+<span id="40">40</span>
+<span id="41">41</span>
+<span id="42">42</span>
+<span id="43">43</span>
+<span id="44">44</span>
+<span id="45">45</span>
+<span id="46">46</span>
+<span id="47">47</span>
+<span id="48">48</span>
+<span id="49">49</span>
+<span id="50">50</span>
+<span id="51">51</span>
+<span id="52">52</span>
+<span id="53">53</span>
+<span id="54">54</span>
+<span id="55">55</span>
+<span id="56">56</span>
+<span id="57">57</span>
+<span id="58">58</span>
+<span id="59">59</span>
+<span id="60">60</span>
+<span id="61">61</span>
+<span id="62">62</span>
+<span id="63">63</span>
+<span id="64">64</span>
+<span id="65">65</span>
+<span id="66">66</span>
+<span id="67">67</span>
+<span id="68">68</span>
+<span id="69">69</span>
+<span id="70">70</span>
+<span id="71">71</span>
+<span id="72">72</span>
+<span id="73">73</span>
+<span id="74">74</span>
+<span id="75">75</span>
+</pre><pre class="rust"><code><span class="kw">use </span><span class="kw">crate</span>::buf::UninitSlice;
+<span class="kw">use </span><span class="kw">crate</span>::BufMut;
+
+<span class="kw">use </span>core::cmp;
+
+<span class="doccomment">/// A `BufMut` adapter which limits the amount of bytes that can be written
+/// to an underlying buffer.
+</span><span class="attr">#[derive(Debug)]
+</span><span class="kw">pub struct </span>Limit&lt;T&gt; {
+ inner: T,
+ limit: usize,
+}
+
+<span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn </span>new&lt;T&gt;(inner: T, limit: usize) -&gt; Limit&lt;T&gt; {
+ Limit { inner, limit }
+}
+
+<span class="kw">impl</span>&lt;T&gt; Limit&lt;T&gt; {
+ <span class="doccomment">/// Consumes this `Limit`, returning the underlying value.
+ </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -&gt; T {
+ <span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Gets a reference to the underlying `BufMut`.
+ ///
+ /// It is inadvisable to directly write to the underlying `BufMut`.
+ </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the underlying `BufMut`.
+ ///
+ /// It is inadvisable to directly write to the underlying `BufMut`.
+ </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Returns the maximum number of bytes that can be written
+ ///
+ /// # Note
+ ///
+ /// If the inner `BufMut` has fewer bytes than indicated by this method then
+ /// that is the actual number of available bytes.
+ </span><span class="kw">pub fn </span>limit(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.limit
+ }
+
+ <span class="doccomment">/// Sets the maximum number of bytes that can be written.
+ ///
+ /// # Note
+ ///
+ /// If the inner `BufMut` has fewer bytes than `lim` then that is the actual
+ /// number of available bytes.
+ </span><span class="kw">pub fn </span>set_limit(<span class="kw-2">&amp;mut </span><span class="self">self</span>, lim: usize) {
+ <span class="self">self</span>.limit = lim
+ }
+}
+
+<span class="kw">unsafe impl</span>&lt;T: BufMut&gt; BufMut <span class="kw">for </span>Limit&lt;T&gt; {
+ <span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ cmp::min(<span class="self">self</span>.inner.remaining_mut(), <span class="self">self</span>.limit)
+ }
+
+ <span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ <span class="kw">let </span>bytes = <span class="self">self</span>.inner.chunk_mut();
+ <span class="kw">let </span>end = cmp::min(bytes.len(), <span class="self">self</span>.limit);
+ <span class="kw-2">&amp;mut </span>bytes[..end]
+ }
+
+ <span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="macro">assert!</span>(cnt &lt;= <span class="self">self</span>.limit);
+ <span class="self">self</span>.inner.advance_mut(cnt);
+ <span class="self">self</span>.limit -= cnt;
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/mod.rs.html b/src/bytes/buf/mod.rs.html
new file mode 100644
index 0000000..fbd7ae7
--- /dev/null
+++ b/src/bytes/buf/mod.rs.html
@@ -0,0 +1,80 @@
+<!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 `src/buf/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+<span id="23">23</span>
+<span id="24">24</span>
+<span id="25">25</span>
+<span id="26">26</span>
+<span id="27">27</span>
+<span id="28">28</span>
+<span id="29">29</span>
+<span id="30">30</span>
+<span id="31">31</span>
+<span id="32">32</span>
+<span id="33">33</span>
+<span id="34">34</span>
+<span id="35">35</span>
+<span id="36">36</span>
+<span id="37">37</span>
+<span id="38">38</span>
+<span id="39">39</span>
+</pre><pre class="rust"><code><span class="doccomment">//! Utilities for working with buffers.
+//!
+//! A buffer is any structure that contains a sequence of bytes. The bytes may
+//! or may not be stored in contiguous memory. This module contains traits used
+//! to abstract over buffers as well as utilities for working with buffer types.
+//!
+//! # `Buf`, `BufMut`
+//!
+//! These are the two foundational traits for abstractly working with buffers.
+//! They can be thought as iterators for byte structures. They offer additional
+//! performance over `Iterator` by providing an API optimized for byte slices.
+//!
+//! See [`Buf`] and [`BufMut`] for more details.
+//!
+//! [rope]: https://en.wikipedia.org/wiki/Rope_(data_structure)
+
+</span><span class="kw">mod </span>buf_impl;
+<span class="kw">mod </span>buf_mut;
+<span class="kw">mod </span>chain;
+<span class="kw">mod </span>iter;
+<span class="kw">mod </span>limit;
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">mod </span>reader;
+<span class="kw">mod </span>take;
+<span class="kw">mod </span>uninit_slice;
+<span class="kw">mod </span>vec_deque;
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">mod </span>writer;
+
+<span class="kw">pub use </span><span class="self">self</span>::buf_impl::Buf;
+<span class="kw">pub use </span><span class="self">self</span>::buf_mut::BufMut;
+<span class="kw">pub use </span><span class="self">self</span>::chain::Chain;
+<span class="kw">pub use </span><span class="self">self</span>::iter::IntoIter;
+<span class="kw">pub use </span><span class="self">self</span>::limit::Limit;
+<span class="kw">pub use </span><span class="self">self</span>::take::Take;
+<span class="kw">pub use </span><span class="self">self</span>::uninit_slice::UninitSlice;
+
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">pub use </span><span class="self">self</span>::{reader::Reader, writer::Writer};
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/reader.rs.html b/src/bytes/buf/reader.rs.html
new file mode 100644
index 0000000..a32bc56
--- /dev/null
+++ b/src/bytes/buf/reader.rs.html
@@ -0,0 +1,164 @@
+<!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 `src/buf/reader.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>reader.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
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+<span id="81">81</span>
+</pre><pre class="rust"><code><span class="kw">use </span><span class="kw">crate</span>::Buf;
+
+<span class="kw">use </span>std::{cmp, io};
+
+<span class="doccomment">/// A `Buf` adapter which implements `io::Read` for the inner value.
+///
+/// This struct is generally created by calling `reader()` on `Buf`. See
+/// documentation of [`reader()`](Buf::reader) for more
+/// details.
+</span><span class="attr">#[derive(Debug)]
+</span><span class="kw">pub struct </span>Reader&lt;B&gt; {
+ buf: B,
+}
+
+<span class="kw">pub fn </span>new&lt;B&gt;(buf: B) -&gt; Reader&lt;B&gt; {
+ Reader { buf }
+}
+
+<span class="kw">impl</span>&lt;B: Buf&gt; Reader&lt;B&gt; {
+ <span class="doccomment">/// Gets a reference to the underlying `Buf`.
+ ///
+ /// It is inadvisable to directly read from the underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::Buf;
+ ///
+ /// let buf = b&quot;hello world&quot;.reader();
+ ///
+ /// assert_eq!(b&quot;hello world&quot;, buf.get_ref());
+ /// ```
+ </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>B {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.buf
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the underlying `Buf`.
+ ///
+ /// It is inadvisable to directly read from the underlying `Buf`.
+ </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>B {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.buf
+ }
+
+ <span class="doccomment">/// Consumes this `Reader`, returning the underlying value.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::Buf;
+ /// use std::io;
+ ///
+ /// let mut buf = b&quot;hello world&quot;.reader();
+ /// let mut dst = vec![];
+ ///
+ /// io::copy(&amp;mut buf, &amp;mut dst).unwrap();
+ ///
+ /// let buf = buf.into_inner();
+ /// assert_eq!(0, buf.remaining());
+ /// ```
+ </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -&gt; B {
+ <span class="self">self</span>.buf
+ }
+}
+
+<span class="kw">impl</span>&lt;B: Buf + Sized&gt; io::Read <span class="kw">for </span>Reader&lt;B&gt; {
+ <span class="kw">fn </span>read(<span class="kw-2">&amp;mut </span><span class="self">self</span>, dst: <span class="kw-2">&amp;mut </span>[u8]) -&gt; io::Result&lt;usize&gt; {
+ <span class="kw">let </span>len = cmp::min(<span class="self">self</span>.buf.remaining(), dst.len());
+
+ Buf::copy_to_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>.buf, <span class="kw-2">&amp;mut </span>dst[<span class="number">0</span>..len]);
+ <span class="prelude-val">Ok</span>(len)
+ }
+}
+
+<span class="kw">impl</span>&lt;B: Buf + Sized&gt; io::BufRead <span class="kw">for </span>Reader&lt;B&gt; {
+ <span class="kw">fn </span>fill_buf(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; io::Result&lt;<span class="kw-2">&amp;</span>[u8]&gt; {
+ <span class="prelude-val">Ok</span>(<span class="self">self</span>.buf.chunk())
+ }
+ <span class="kw">fn </span>consume(<span class="kw-2">&amp;mut </span><span class="self">self</span>, amt: usize) {
+ <span class="self">self</span>.buf.advance(amt)
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/take.rs.html b/src/bytes/buf/take.rs.html
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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 `src/buf/take.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>take.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></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 crate</span>::{Buf, Bytes};
+
+<span class="kw">use </span>core::cmp;
+
+<span class="doccomment">/// A `Buf` adapter which limits the bytes read from an underlying buffer.
+///
+/// This struct is generally created by calling `take()` on `Buf`. See
+/// documentation of [`take()`](Buf::take) for more details.
+</span><span class="attr">#[derive(Debug)]
+</span><span class="kw">pub struct </span>Take&lt;T&gt; {
+ inner: T,
+ limit: usize,
+}
+
+<span class="kw">pub fn </span>new&lt;T&gt;(inner: T, limit: usize) -&gt; Take&lt;T&gt; {
+ Take { inner, limit }
+}
+
+<span class="kw">impl</span>&lt;T&gt; Take&lt;T&gt; {
+ <span class="doccomment">/// Consumes this `Take`, returning the underlying value.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::{Buf, BufMut};
+ ///
+ /// let mut buf = b&quot;hello world&quot;.take(2);
+ /// let mut dst = vec![];
+ ///
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(*dst, b&quot;he&quot;[..]);
+ ///
+ /// let mut buf = buf.into_inner();
+ ///
+ /// dst.clear();
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(*dst, b&quot;llo world&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -&gt; T {
+ <span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Gets a reference to the underlying `Buf`.
+ ///
+ /// It is inadvisable to directly read from the underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::Buf;
+ ///
+ /// let buf = b&quot;hello world&quot;.take(2);
+ ///
+ /// assert_eq!(11, buf.get_ref().remaining());
+ /// ```
+ </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>T {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the underlying `Buf`.
+ ///
+ /// It is inadvisable to directly read from the underlying `Buf`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::{Buf, BufMut};
+ ///
+ /// let mut buf = b&quot;hello world&quot;.take(2);
+ /// let mut dst = vec![];
+ ///
+ /// buf.get_mut().advance(2);
+ ///
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(*dst, b&quot;ll&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>T {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.inner
+ }
+
+ <span class="doccomment">/// Returns the maximum number of bytes that can be read.
+ ///
+ /// # Note
+ ///
+ /// If the inner `Buf` has fewer bytes than indicated by this method then
+ /// that is the actual number of available bytes.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::Buf;
+ ///
+ /// let mut buf = b&quot;hello world&quot;.take(2);
+ ///
+ /// assert_eq!(2, buf.limit());
+ /// assert_eq!(b&#39;h&#39;, buf.get_u8());
+ /// assert_eq!(1, buf.limit());
+ /// ```
+ </span><span class="kw">pub fn </span>limit(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.limit
+ }
+
+ <span class="doccomment">/// Sets the maximum number of bytes that can be read.
+ ///
+ /// # Note
+ ///
+ /// If the inner `Buf` has fewer bytes than `lim` then that is the actual
+ /// number of available bytes.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::{Buf, BufMut};
+ ///
+ /// let mut buf = b&quot;hello world&quot;.take(2);
+ /// let mut dst = vec![];
+ ///
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(*dst, b&quot;he&quot;[..]);
+ ///
+ /// dst.clear();
+ ///
+ /// buf.set_limit(3);
+ /// dst.put(&amp;mut buf);
+ /// assert_eq!(*dst, b&quot;llo&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>set_limit(<span class="kw-2">&amp;mut </span><span class="self">self</span>, lim: usize) {
+ <span class="self">self</span>.limit = lim
+ }
+}
+
+<span class="kw">impl</span>&lt;T: Buf&gt; Buf <span class="kw">for </span>Take&lt;T&gt; {
+ <span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ cmp::min(<span class="self">self</span>.inner.remaining(), <span class="self">self</span>.limit)
+ }
+
+ <span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">let </span>bytes = <span class="self">self</span>.inner.chunk();
+ <span class="kw-2">&amp;</span>bytes[..cmp::min(bytes.len(), <span class="self">self</span>.limit)]
+ }
+
+ <span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="macro">assert!</span>(cnt &lt;= <span class="self">self</span>.limit);
+ <span class="self">self</span>.inner.advance(cnt);
+ <span class="self">self</span>.limit -= cnt;
+ }
+
+ <span class="kw">fn </span>copy_to_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) -&gt; Bytes {
+ <span class="macro">assert!</span>(len &lt;= <span class="self">self</span>.remaining(), <span class="string">&quot;`len` greater than remaining&quot;</span>);
+
+ <span class="kw">let </span>r = <span class="self">self</span>.inner.copy_to_bytes(len);
+ <span class="self">self</span>.limit -= len;
+ r
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/uninit_slice.rs.html b/src/bytes/buf/uninit_slice.rs.html
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+</pre><pre class="rust"><code><span class="kw">use </span>core::fmt;
+<span class="kw">use </span>core::mem::MaybeUninit;
+<span class="kw">use </span>core::ops::{
+ Index, IndexMut, Range, RangeFrom, RangeFull, RangeInclusive, RangeTo, RangeToInclusive,
+};
+
+<span class="doccomment">/// Uninitialized byte slice.
+///
+/// Returned by `BufMut::chunk_mut()`, the referenced byte slice may be
+/// uninitialized. The wrapper provides safe access without introducing
+/// undefined behavior.
+///
+/// The safety invariants of this wrapper are:
+///
+/// 1. Reading from an `UninitSlice` is undefined behavior.
+/// 2. Writing uninitialized bytes to an `UninitSlice` is undefined behavior.
+///
+/// The difference between `&amp;mut UninitSlice` and `&amp;mut [MaybeUninit&lt;u8&gt;]` is
+/// that it is possible in safe code to write uninitialized bytes to an
+/// `&amp;mut [MaybeUninit&lt;u8&gt;]`, which this type prohibits.
+</span><span class="attr">#[repr(transparent)]
+</span><span class="kw">pub struct </span>UninitSlice([MaybeUninit&lt;u8&gt;]);
+
+<span class="kw">impl </span>UninitSlice {
+ <span class="doccomment">/// Creates a `&amp;mut UninitSlice` wrapping a slice of initialised memory.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::buf::UninitSlice;
+ ///
+ /// let mut buffer = [0u8; 64];
+ /// let slice = UninitSlice::new(&amp;mut buffer[..]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>new(slice: <span class="kw-2">&amp;mut </span>[u8]) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ <span class="kw">unsafe </span>{ <span class="kw-2">&amp;mut *</span>(slice <span class="kw">as </span><span class="kw-2">*mut </span>[u8] <span class="kw">as </span><span class="kw-2">*mut </span>[MaybeUninit&lt;u8&gt;] <span class="kw">as </span><span class="kw-2">*mut </span>UninitSlice) }
+ }
+
+ <span class="doccomment">/// Creates a `&amp;mut UninitSlice` wrapping a slice of uninitialised memory.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::buf::UninitSlice;
+ /// use core::mem::MaybeUninit;
+ ///
+ /// let mut buffer = [MaybeUninit::uninit(); 64];
+ /// let slice = UninitSlice::uninit(&amp;mut buffer[..]);
+ ///
+ /// let mut vec = Vec::with_capacity(1024);
+ /// let spare: &amp;mut UninitSlice = vec.spare_capacity_mut().into();
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>uninit(slice: <span class="kw-2">&amp;mut </span>[MaybeUninit&lt;u8&gt;]) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ <span class="kw">unsafe </span>{ <span class="kw-2">&amp;mut *</span>(slice <span class="kw">as </span><span class="kw-2">*mut </span>[MaybeUninit&lt;u8&gt;] <span class="kw">as </span><span class="kw-2">*mut </span>UninitSlice) }
+ }
+
+ <span class="kw">fn </span>uninit_ref(slice: <span class="kw-2">&amp;</span>[MaybeUninit&lt;u8&gt;]) -&gt; <span class="kw-2">&amp;</span>UninitSlice {
+ <span class="kw">unsafe </span>{ <span class="kw-2">&amp;*</span>(slice <span class="kw">as </span><span class="kw-2">*const </span>[MaybeUninit&lt;u8&gt;] <span class="kw">as </span><span class="kw-2">*const </span>UninitSlice) }
+ }
+
+ <span class="doccomment">/// Create a `&amp;mut UninitSlice` from a pointer and a length.
+ ///
+ /// # Safety
+ ///
+ /// The caller must ensure that `ptr` references a valid memory region owned
+ /// by the caller representing a byte slice for the duration of `&#39;a`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::buf::UninitSlice;
+ ///
+ /// let bytes = b&quot;hello world&quot;.to_vec();
+ /// let ptr = bytes.as_ptr() as *mut _;
+ /// let len = bytes.len();
+ ///
+ /// let slice = unsafe { UninitSlice::from_raw_parts_mut(ptr, len) };
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub unsafe fn </span>from_raw_parts_mut&lt;<span class="lifetime">&#39;a</span>&gt;(ptr: <span class="kw-2">*mut </span>u8, len: usize) -&gt; <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="kw-2">mut </span>UninitSlice {
+ <span class="kw">let </span>maybe_init: <span class="kw-2">&amp;mut </span>[MaybeUninit&lt;u8&gt;] =
+ core::slice::from_raw_parts_mut(ptr <span class="kw">as </span><span class="kw-2">*mut </span><span class="kw">_</span>, len);
+ <span class="self">Self</span>::uninit(maybe_init)
+ }
+
+ <span class="doccomment">/// Write a single byte at the specified offset.
+ ///
+ /// # Panics
+ ///
+ /// The function panics if `index` is out of bounds.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::buf::UninitSlice;
+ ///
+ /// let mut data = [b&#39;f&#39;, b&#39;o&#39;, b&#39;o&#39;];
+ /// let slice = unsafe { UninitSlice::from_raw_parts_mut(data.as_mut_ptr(), 3) };
+ ///
+ /// slice.write_byte(0, b&#39;b&#39;);
+ ///
+ /// assert_eq!(b&quot;boo&quot;, &amp;data[..]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>write_byte(<span class="kw-2">&amp;mut </span><span class="self">self</span>, index: usize, byte: u8) {
+ <span class="macro">assert!</span>(index &lt; <span class="self">self</span>.len());
+
+ <span class="kw">unsafe </span>{ <span class="self">self</span>[index..].as_mut_ptr().write(byte) }
+ }
+
+ <span class="doccomment">/// Copies bytes from `src` into `self`.
+ ///
+ /// The length of `src` must be the same as `self`.
+ ///
+ /// # Panics
+ ///
+ /// The function panics if `src` has a different length than `self`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::buf::UninitSlice;
+ ///
+ /// let mut data = [b&#39;f&#39;, b&#39;o&#39;, b&#39;o&#39;];
+ /// let slice = unsafe { UninitSlice::from_raw_parts_mut(data.as_mut_ptr(), 3) };
+ ///
+ /// slice.copy_from_slice(b&quot;bar&quot;);
+ ///
+ /// assert_eq!(b&quot;bar&quot;, &amp;data[..]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>copy_from_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="kw">use </span>core::ptr;
+
+ <span class="macro">assert_eq!</span>(<span class="self">self</span>.len(), src.len());
+
+ <span class="kw">unsafe </span>{
+ ptr::copy_nonoverlapping(src.as_ptr(), <span class="self">self</span>.as_mut_ptr(), <span class="self">self</span>.len());
+ }
+ }
+
+ <span class="doccomment">/// Return a raw pointer to the slice&#39;s buffer.
+ ///
+ /// # Safety
+ ///
+ /// The caller **must not** read from the referenced memory and **must not**
+ /// write **uninitialized** bytes to the slice either.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut data = [0, 1, 2];
+ /// let mut slice = &amp;mut data[..];
+ /// let ptr = BufMut::chunk_mut(&amp;mut slice).as_mut_ptr();
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>as_mut_ptr(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">*mut </span>u8 {
+ <span class="self">self</span>.<span class="number">0</span>.as_mut_ptr() <span class="kw">as </span><span class="kw-2">*mut </span><span class="kw">_
+ </span>}
+
+ <span class="doccomment">/// Return a `&amp;mut [MaybeUninit&lt;u8&gt;]` to this slice&#39;s buffer.
+ ///
+ /// # Safety
+ ///
+ /// The caller **must not** read from the referenced memory and **must not** write
+ /// **uninitialized** bytes to the slice either. This is because `BufMut` implementation
+ /// that created the `UninitSlice` knows which parts are initialized. Writing uninitialized
+ /// bytes to the slice may cause the `BufMut` to read those bytes and trigger undefined
+ /// behavior.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut data = [0, 1, 2];
+ /// let mut slice = &amp;mut data[..];
+ /// unsafe {
+ /// let uninit_slice = BufMut::chunk_mut(&amp;mut slice).as_uninit_slice_mut();
+ /// };
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub unsafe fn </span>as_uninit_slice_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>[MaybeUninit&lt;u8&gt;] {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.<span class="number">0
+ </span>}
+
+ <span class="doccomment">/// Returns the number of bytes in the slice.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BufMut;
+ ///
+ /// let mut data = [0, 1, 2];
+ /// let mut slice = &amp;mut data[..];
+ /// let len = BufMut::chunk_mut(&amp;mut slice).len();
+ ///
+ /// assert_eq!(len, 3);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.<span class="number">0</span>.len()
+ }
+}
+
+<span class="kw">impl </span>fmt::Debug <span class="kw">for </span>UninitSlice {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, fmt: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
+ fmt.debug_struct(<span class="string">&quot;UninitSlice[...]&quot;</span>).finish()
+ }
+}
+
+<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><span class="kw-2">mut </span>[u8]&gt; <span class="kw">for </span><span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="kw-2">mut </span>UninitSlice {
+ <span class="kw">fn </span>from(slice: <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="kw-2">mut </span>[u8]) -&gt; <span class="self">Self </span>{
+ UninitSlice::new(slice)
+ }
+}
+
+<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><span class="kw-2">mut </span>[MaybeUninit&lt;u8&gt;]&gt; <span class="kw">for </span><span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="kw-2">mut </span>UninitSlice {
+ <span class="kw">fn </span>from(slice: <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span><span class="kw-2">mut </span>[MaybeUninit&lt;u8&gt;]) -&gt; <span class="self">Self </span>{
+ UninitSlice::uninit(slice)
+ }
+}
+
+<span class="macro">macro_rules! </span>impl_index {
+ ($(<span class="macro-nonterminal">$t</span>:ty),<span class="kw-2">*</span>) =&gt; {
+ $(
+ <span class="kw">impl </span>Index&lt;<span class="macro-nonterminal">$t</span>&gt; <span class="kw">for </span>UninitSlice {
+ <span class="kw">type </span>Output = UninitSlice;
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>index(<span class="kw-2">&amp;</span><span class="self">self</span>, index: <span class="macro-nonterminal">$t</span>) -&gt; <span class="kw-2">&amp;</span>UninitSlice {
+ UninitSlice::uninit_ref(<span class="kw-2">&amp;</span><span class="self">self</span>.<span class="number">0</span>[index])
+ }
+ }
+
+ <span class="kw">impl </span>IndexMut&lt;<span class="macro-nonterminal">$t</span>&gt; <span class="kw">for </span>UninitSlice {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>index_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, index: <span class="macro-nonterminal">$t</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ UninitSlice::uninit(<span class="kw-2">&amp;mut </span><span class="self">self</span>.<span class="number">0</span>[index])
+ }
+ }
+ )*
+ };
+}
+
+<span class="macro">impl_index!</span>(
+ Range&lt;usize&gt;,
+ RangeFrom&lt;usize&gt;,
+ RangeFull,
+ RangeInclusive&lt;usize&gt;,
+ RangeTo&lt;usize&gt;,
+ RangeToInclusive&lt;usize&gt;
+);
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/vec_deque.rs.html b/src/bytes/buf/vec_deque.rs.html
new file mode 100644
index 0000000..a276b6f
--- /dev/null
+++ b/src/bytes/buf/vec_deque.rs.html
@@ -0,0 +1,46 @@
+<!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 `src/buf/vec_deque.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>vec_deque.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+</pre><pre class="rust"><code><span class="kw">use </span>alloc::collections::VecDeque;
+
+<span class="kw">use </span><span class="kw">super</span>::Buf;
+
+<span class="kw">impl </span>Buf <span class="kw">for </span>VecDeque&lt;u8&gt; {
+ <span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len()
+ }
+
+ <span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">let </span>(s1, s2) = <span class="self">self</span>.as_slices();
+ <span class="kw">if </span>s1.is_empty() {
+ s2
+ } <span class="kw">else </span>{
+ s1
+ }
+ }
+
+ <span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="self">self</span>.drain(..cnt);
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/buf/writer.rs.html b/src/bytes/buf/writer.rs.html
new file mode 100644
index 0000000..25aa759
--- /dev/null
+++ b/src/bytes/buf/writer.rs.html
@@ -0,0 +1,178 @@
+<!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 `src/buf/writer.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>writer.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+<span id="23">23</span>
+<span id="24">24</span>
+<span id="25">25</span>
+<span id="26">26</span>
+<span id="27">27</span>
+<span id="28">28</span>
+<span id="29">29</span>
+<span id="30">30</span>
+<span id="31">31</span>
+<span id="32">32</span>
+<span id="33">33</span>
+<span id="34">34</span>
+<span id="35">35</span>
+<span id="36">36</span>
+<span id="37">37</span>
+<span id="38">38</span>
+<span id="39">39</span>
+<span id="40">40</span>
+<span id="41">41</span>
+<span id="42">42</span>
+<span id="43">43</span>
+<span id="44">44</span>
+<span id="45">45</span>
+<span id="46">46</span>
+<span id="47">47</span>
+<span id="48">48</span>
+<span id="49">49</span>
+<span id="50">50</span>
+<span id="51">51</span>
+<span id="52">52</span>
+<span id="53">53</span>
+<span id="54">54</span>
+<span id="55">55</span>
+<span id="56">56</span>
+<span id="57">57</span>
+<span id="58">58</span>
+<span id="59">59</span>
+<span id="60">60</span>
+<span id="61">61</span>
+<span id="62">62</span>
+<span id="63">63</span>
+<span id="64">64</span>
+<span id="65">65</span>
+<span id="66">66</span>
+<span id="67">67</span>
+<span id="68">68</span>
+<span id="69">69</span>
+<span id="70">70</span>
+<span id="71">71</span>
+<span id="72">72</span>
+<span id="73">73</span>
+<span id="74">74</span>
+<span id="75">75</span>
+<span id="76">76</span>
+<span id="77">77</span>
+<span id="78">78</span>
+<span id="79">79</span>
+<span id="80">80</span>
+<span id="81">81</span>
+<span id="82">82</span>
+<span id="83">83</span>
+<span id="84">84</span>
+<span id="85">85</span>
+<span id="86">86</span>
+<span id="87">87</span>
+<span id="88">88</span>
+</pre><pre class="rust"><code><span class="kw">use </span><span class="kw">crate</span>::BufMut;
+
+<span class="kw">use </span>std::{cmp, io};
+
+<span class="doccomment">/// A `BufMut` adapter which implements `io::Write` for the inner value.
+///
+/// This struct is generally created by calling `writer()` on `BufMut`. See
+/// documentation of [`writer()`](BufMut::writer) for more
+/// details.
+</span><span class="attr">#[derive(Debug)]
+</span><span class="kw">pub struct </span>Writer&lt;B&gt; {
+ buf: B,
+}
+
+<span class="kw">pub fn </span>new&lt;B&gt;(buf: B) -&gt; Writer&lt;B&gt; {
+ Writer { buf }
+}
+
+<span class="kw">impl</span>&lt;B: BufMut&gt; Writer&lt;B&gt; {
+ <span class="doccomment">/// Gets a reference to the underlying `BufMut`.
+ ///
+ /// It is inadvisable to directly write to the underlying `BufMut`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::BufMut;
+ ///
+ /// let buf = Vec::with_capacity(1024).writer();
+ ///
+ /// assert_eq!(1024, buf.get_ref().capacity());
+ /// ```
+ </span><span class="kw">pub fn </span>get_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>B {
+ <span class="kw-2">&amp;</span><span class="self">self</span>.buf
+ }
+
+ <span class="doccomment">/// Gets a mutable reference to the underlying `BufMut`.
+ ///
+ /// It is inadvisable to directly write to the underlying `BufMut`.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::BufMut;
+ ///
+ /// let mut buf = vec![].writer();
+ ///
+ /// buf.get_mut().reserve(1024);
+ ///
+ /// assert_eq!(1024, buf.get_ref().capacity());
+ /// ```
+ </span><span class="kw">pub fn </span>get_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>B {
+ <span class="kw-2">&amp;mut </span><span class="self">self</span>.buf
+ }
+
+ <span class="doccomment">/// Consumes this `Writer`, returning the underlying value.
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// use bytes::BufMut;
+ /// use std::io;
+ ///
+ /// let mut buf = vec![].writer();
+ /// let mut src = &amp;b&quot;hello world&quot;[..];
+ ///
+ /// io::copy(&amp;mut src, &amp;mut buf).unwrap();
+ ///
+ /// let buf = buf.into_inner();
+ /// assert_eq!(*buf, b&quot;hello world&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>into_inner(<span class="self">self</span>) -&gt; B {
+ <span class="self">self</span>.buf
+ }
+}
+
+<span class="kw">impl</span>&lt;B: BufMut + Sized&gt; io::Write <span class="kw">for </span>Writer&lt;B&gt; {
+ <span class="kw">fn </span>write(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) -&gt; io::Result&lt;usize&gt; {
+ <span class="kw">let </span>n = cmp::min(<span class="self">self</span>.buf.remaining_mut(), src.len());
+
+ <span class="self">self</span>.buf.put(<span class="kw-2">&amp;</span>src[<span class="number">0</span>..n]);
+ <span class="prelude-val">Ok</span>(n)
+ }
+
+ <span class="kw">fn </span>flush(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; io::Result&lt;()&gt; {
+ <span class="prelude-val">Ok</span>(())
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/bytes.rs.html b/src/bytes/bytes.rs.html
new file mode 100644
index 0000000..b454be1
--- /dev/null
+++ b/src/bytes/bytes.rs.html
@@ -0,0 +1,2962 @@
+<!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 `src/bytes.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>bytes.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../source-files.js"></script><script defer src="../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../bytes/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
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+<span id="1234">1234</span>
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+<span id="1471">1471</span>
+<span id="1472">1472</span>
+<span id="1473">1473</span>
+<span id="1474">1474</span>
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+<span id="1477">1477</span>
+<span id="1478">1478</span>
+<span id="1479">1479</span>
+<span id="1480">1480</span>
+</pre><pre class="rust"><code><span class="kw">use </span>core::iter::FromIterator;
+<span class="kw">use </span>core::mem::{<span class="self">self</span>, ManuallyDrop};
+<span class="kw">use </span>core::ops::{Deref, RangeBounds};
+<span class="kw">use </span>core::{cmp, fmt, hash, ptr, slice, usize};
+
+<span class="kw">use </span>alloc::{
+ alloc::{dealloc, Layout},
+ borrow::Borrow,
+ boxed::Box,
+ string::String,
+ vec::Vec,
+};
+
+<span class="kw">use </span><span class="kw">crate</span>::buf::IntoIter;
+<span class="attr">#[allow(unused)]
+</span><span class="kw">use </span><span class="kw">crate</span>::loom::sync::atomic::AtomicMut;
+<span class="kw">use </span><span class="kw">crate</span>::loom::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
+<span class="kw">use crate</span>::{offset_from, Buf, BytesMut};
+
+<span class="doccomment">/// A cheaply cloneable and sliceable chunk of contiguous memory.
+///
+/// `Bytes` is an efficient container for storing and operating on contiguous
+/// slices of memory. It is intended for use primarily in networking code, but
+/// could have applications elsewhere as well.
+///
+/// `Bytes` values facilitate zero-copy network programming by allowing multiple
+/// `Bytes` objects to point to the same underlying memory.
+///
+/// `Bytes` does not have a single implementation. It is an interface, whose
+/// exact behavior is implemented through dynamic dispatch in several underlying
+/// implementations of `Bytes`.
+///
+/// All `Bytes` implementations must fulfill the following requirements:
+/// - They are cheaply cloneable and thereby shareable between an unlimited amount
+/// of components, for example by modifying a reference count.
+/// - Instances can be sliced to refer to a subset of the original buffer.
+///
+/// ```
+/// use bytes::Bytes;
+///
+/// let mut mem = Bytes::from(&quot;Hello world&quot;);
+/// let a = mem.slice(0..5);
+///
+/// assert_eq!(a, &quot;Hello&quot;);
+///
+/// let b = mem.split_to(6);
+///
+/// assert_eq!(mem, &quot;world&quot;);
+/// assert_eq!(b, &quot;Hello &quot;);
+/// ```
+///
+/// # Memory layout
+///
+/// The `Bytes` struct itself is fairly small, limited to 4 `usize` fields used
+/// to track information about which segment of the underlying memory the
+/// `Bytes` handle has access to.
+///
+/// `Bytes` keeps both a pointer to the shared state containing the full memory
+/// slice and a pointer to the start of the region visible by the handle.
+/// `Bytes` also tracks the length of its view into the memory.
+///
+/// # Sharing
+///
+/// `Bytes` contains a vtable, which allows implementations of `Bytes` to define
+/// how sharing/cloning is implemented in detail.
+/// When `Bytes::clone()` is called, `Bytes` will call the vtable function for
+/// cloning the backing storage in order to share it behind multiple `Bytes`
+/// instances.
+///
+/// For `Bytes` implementations which refer to constant memory (e.g. created
+/// via `Bytes::from_static()`) the cloning implementation will be a no-op.
+///
+/// For `Bytes` implementations which point to a reference counted shared storage
+/// (e.g. an `Arc&lt;[u8]&gt;`), sharing will be implemented by increasing the
+/// reference count.
+///
+/// Due to this mechanism, multiple `Bytes` instances may point to the same
+/// shared memory region.
+/// Each `Bytes` instance can point to different sections within that
+/// memory region, and `Bytes` instances may or may not have overlapping views
+/// into the memory.
+///
+/// The following diagram visualizes a scenario where 2 `Bytes` instances make
+/// use of an `Arc`-based backing storage, and provide access to different views:
+///
+/// ```text
+///
+/// Arc ptrs ┌─────────┐
+/// ________________________ / │ Bytes 2 │
+/// / └─────────┘
+/// / ┌───────────┐ | |
+/// |_________/ │ Bytes 1 │ | |
+/// | └───────────┘ | |
+/// | | | ___/ data | tail
+/// | data | tail |/ |
+/// v v v v
+/// ┌─────┬─────┬───────────┬───────────────┬─────┐
+/// │ Arc │ │ │ │ │
+/// └─────┴─────┴───────────┴───────────────┴─────┘
+/// ```
+</span><span class="kw">pub struct </span>Bytes {
+ ptr: <span class="kw-2">*const </span>u8,
+ len: usize,
+ <span class="comment">// inlined &quot;trait object&quot;
+ </span>data: AtomicPtr&lt;()&gt;,
+ vtable: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>Vtable,
+}
+
+<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">struct </span>Vtable {
+ <span class="doccomment">/// fn(data, ptr, len)
+ </span><span class="kw">pub </span>clone: <span class="kw">unsafe fn</span>(<span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, <span class="kw-2">*const </span>u8, usize) -&gt; Bytes,
+ <span class="doccomment">/// fn(data, ptr, len)
+ ///
+ /// takes `Bytes` to value
+ </span><span class="kw">pub </span>to_vec: <span class="kw">unsafe fn</span>(<span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, <span class="kw-2">*const </span>u8, usize) -&gt; Vec&lt;u8&gt;,
+ <span class="kw">pub </span>to_mut: <span class="kw">unsafe fn</span>(<span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, <span class="kw-2">*const </span>u8, usize) -&gt; BytesMut,
+ <span class="doccomment">/// fn(data)
+ </span><span class="kw">pub </span>is_unique: <span class="kw">unsafe fn</span>(<span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;) -&gt; bool,
+ <span class="doccomment">/// fn(data, ptr, len)
+ </span><span class="kw">pub </span>drop: <span class="kw">unsafe fn</span>(<span class="kw-2">&amp;mut </span>AtomicPtr&lt;()&gt;, <span class="kw-2">*const </span>u8, usize),
+}
+
+<span class="kw">impl </span>Bytes {
+ <span class="doccomment">/// Creates a new empty `Bytes`.
+ ///
+ /// This will not allocate and the returned `Bytes` handle will be empty.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let b = Bytes::new();
+ /// assert_eq!(&amp;b[..], b&quot;&quot;);
+ /// ```
+ </span><span class="attr">#[inline]
+ #[cfg(not(all(loom, test)))]
+ </span><span class="kw">pub const fn </span>new() -&gt; <span class="self">Self </span>{
+ <span class="comment">// Make it a named const to work around
+ // &quot;unsizing casts are not allowed in const fn&quot;
+ </span><span class="kw">const </span>EMPTY: <span class="kw-2">&amp;</span>[u8] = <span class="kw-2">&amp;</span>[];
+ Bytes::from_static(EMPTY)
+ }
+
+ <span class="attr">#[cfg(all(loom, test))]
+ </span><span class="kw">pub fn </span>new() -&gt; <span class="self">Self </span>{
+ <span class="kw">const </span>EMPTY: <span class="kw-2">&amp;</span>[u8] = <span class="kw-2">&amp;</span>[];
+ Bytes::from_static(EMPTY)
+ }
+
+ <span class="doccomment">/// Creates a new `Bytes` from a static slice.
+ ///
+ /// The returned `Bytes` will point directly to the static slice. There is
+ /// no allocating or copying.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let b = Bytes::from_static(b&quot;hello&quot;);
+ /// assert_eq!(&amp;b[..], b&quot;hello&quot;);
+ /// ```
+ </span><span class="attr">#[inline]
+ #[cfg(not(all(loom, test)))]
+ </span><span class="kw">pub const fn </span>from_static(bytes: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>[u8]) -&gt; <span class="self">Self </span>{
+ Bytes {
+ ptr: bytes.as_ptr(),
+ len: bytes.len(),
+ data: AtomicPtr::new(ptr::null_mut()),
+ vtable: <span class="kw-2">&amp;</span>STATIC_VTABLE,
+ }
+ }
+
+ <span class="attr">#[cfg(all(loom, test))]
+ </span><span class="kw">pub fn </span>from_static(bytes: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>[u8]) -&gt; <span class="self">Self </span>{
+ Bytes {
+ ptr: bytes.as_ptr(),
+ len: bytes.len(),
+ data: AtomicPtr::new(ptr::null_mut()),
+ vtable: <span class="kw-2">&amp;</span>STATIC_VTABLE,
+ }
+ }
+
+ <span class="doccomment">/// Returns the number of bytes contained in this `Bytes`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let b = Bytes::from(&amp;b&quot;hello&quot;[..]);
+ /// assert_eq!(b.len(), 5);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub const fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len
+ }
+
+ <span class="doccomment">/// Returns true if the `Bytes` has a length of 0.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let b = Bytes::new();
+ /// assert!(b.is_empty());
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub const fn </span>is_empty(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ <span class="self">self</span>.len == <span class="number">0
+ </span>}
+
+ <span class="doccomment">/// Returns true if this is the only reference to the data.
+ ///
+ /// Always returns false if the data is backed by a static slice.
+ ///
+ /// The result of this method may be invalidated immediately if another
+ /// thread clones this value while this is being called. Ensure you have
+ /// unique access to this value (`&amp;mut Bytes`) first if you need to be
+ /// certain the result is valid (i.e. for safety reasons)
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let a = Bytes::from(vec![1, 2, 3]);
+ /// assert!(a.is_unique());
+ /// let b = a.clone();
+ /// assert!(!a.is_unique());
+ /// ```
+ </span><span class="kw">pub fn </span>is_unique(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ <span class="kw">unsafe </span>{ (<span class="self">self</span>.vtable.is_unique)(<span class="kw-2">&amp;</span><span class="self">self</span>.data) }
+ }
+
+ <span class="doccomment">/// Creates `Bytes` instance from slice, by copying it.
+ </span><span class="kw">pub fn </span>copy_from_slice(data: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="self">Self </span>{
+ data.to_vec().into()
+ }
+
+ <span class="doccomment">/// Returns a slice of self for the provided range.
+ ///
+ /// This will increment the reference count for the underlying memory and
+ /// return a new `Bytes` handle set to the slice.
+ ///
+ /// This operation is `O(1)`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let a = Bytes::from(&amp;b&quot;hello world&quot;[..]);
+ /// let b = a.slice(2..5);
+ ///
+ /// assert_eq!(&amp;b[..], b&quot;llo&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Requires that `begin &lt;= end` and `end &lt;= self.len()`, otherwise slicing
+ /// will panic.
+ </span><span class="kw">pub fn </span>slice(<span class="kw-2">&amp;</span><span class="self">self</span>, range: <span class="kw">impl </span>RangeBounds&lt;usize&gt;) -&gt; <span class="self">Self </span>{
+ <span class="kw">use </span>core::ops::Bound;
+
+ <span class="kw">let </span>len = <span class="self">self</span>.len();
+
+ <span class="kw">let </span>begin = <span class="kw">match </span>range.start_bound() {
+ Bound::Included(<span class="kw-2">&amp;</span>n) =&gt; n,
+ Bound::Excluded(<span class="kw-2">&amp;</span>n) =&gt; n.checked_add(<span class="number">1</span>).expect(<span class="string">&quot;out of range&quot;</span>),
+ Bound::Unbounded =&gt; <span class="number">0</span>,
+ };
+
+ <span class="kw">let </span>end = <span class="kw">match </span>range.end_bound() {
+ Bound::Included(<span class="kw-2">&amp;</span>n) =&gt; n.checked_add(<span class="number">1</span>).expect(<span class="string">&quot;out of range&quot;</span>),
+ Bound::Excluded(<span class="kw-2">&amp;</span>n) =&gt; n,
+ Bound::Unbounded =&gt; len,
+ };
+
+ <span class="macro">assert!</span>(
+ begin &lt;= end,
+ <span class="string">&quot;range start must not be greater than end: {:?} &lt;= {:?}&quot;</span>,
+ begin,
+ end,
+ );
+ <span class="macro">assert!</span>(
+ end &lt;= len,
+ <span class="string">&quot;range end out of bounds: {:?} &lt;= {:?}&quot;</span>,
+ end,
+ len,
+ );
+
+ <span class="kw">if </span>end == begin {
+ <span class="kw">return </span>Bytes::new();
+ }
+
+ <span class="kw">let </span><span class="kw-2">mut </span>ret = <span class="self">self</span>.clone();
+
+ ret.len = end - begin;
+ ret.ptr = <span class="kw">unsafe </span>{ ret.ptr.add(begin) };
+
+ ret
+ }
+
+ <span class="doccomment">/// Returns a slice of self that is equivalent to the given `subset`.
+ ///
+ /// When processing a `Bytes` buffer with other tools, one often gets a
+ /// `&amp;[u8]` which is in fact a slice of the `Bytes`, i.e. a subset of it.
+ /// This function turns that `&amp;[u8]` into another `Bytes`, as if one had
+ /// called `self.slice()` with the offsets that correspond to `subset`.
+ ///
+ /// This operation is `O(1)`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let bytes = Bytes::from(&amp;b&quot;012345678&quot;[..]);
+ /// let as_slice = bytes.as_ref();
+ /// let subset = &amp;as_slice[2..6];
+ /// let subslice = bytes.slice_ref(&amp;subset);
+ /// assert_eq!(&amp;subslice[..], b&quot;2345&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Requires that the given `sub` slice is in fact contained within the
+ /// `Bytes` buffer; otherwise this function will panic.
+ </span><span class="kw">pub fn </span>slice_ref(<span class="kw-2">&amp;</span><span class="self">self</span>, subset: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="self">Self </span>{
+ <span class="comment">// Empty slice and empty Bytes may have their pointers reset
+ // so explicitly allow empty slice to be a subslice of any slice.
+ </span><span class="kw">if </span>subset.is_empty() {
+ <span class="kw">return </span>Bytes::new();
+ }
+
+ <span class="kw">let </span>bytes_p = <span class="self">self</span>.as_ptr() <span class="kw">as </span>usize;
+ <span class="kw">let </span>bytes_len = <span class="self">self</span>.len();
+
+ <span class="kw">let </span>sub_p = subset.as_ptr() <span class="kw">as </span>usize;
+ <span class="kw">let </span>sub_len = subset.len();
+
+ <span class="macro">assert!</span>(
+ sub_p &gt;= bytes_p,
+ <span class="string">&quot;subset pointer ({:p}) is smaller than self pointer ({:p})&quot;</span>,
+ subset.as_ptr(),
+ <span class="self">self</span>.as_ptr(),
+ );
+ <span class="macro">assert!</span>(
+ sub_p + sub_len &lt;= bytes_p + bytes_len,
+ <span class="string">&quot;subset is out of bounds: self = ({:p}, {}), subset = ({:p}, {})&quot;</span>,
+ <span class="self">self</span>.as_ptr(),
+ bytes_len,
+ subset.as_ptr(),
+ sub_len,
+ );
+
+ <span class="kw">let </span>sub_offset = sub_p - bytes_p;
+
+ <span class="self">self</span>.slice(sub_offset..(sub_offset + sub_len))
+ }
+
+ <span class="doccomment">/// Splits the bytes into two at the given index.
+ ///
+ /// Afterwards `self` contains elements `[0, at)`, and the returned `Bytes`
+ /// contains elements `[at, len)`.
+ ///
+ /// This is an `O(1)` operation that just increases the reference count and
+ /// sets a few indices.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let mut a = Bytes::from(&amp;b&quot;hello world&quot;[..]);
+ /// let b = a.split_off(5);
+ ///
+ /// assert_eq!(&amp;a[..], b&quot;hello&quot;);
+ /// assert_eq!(&amp;b[..], b&quot; world&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Panics if `at &gt; len`.
+ </span><span class="attr">#[must_use = <span class="string">&quot;consider Bytes::truncate if you don&#39;t need the other half&quot;</span>]
+ </span><span class="kw">pub fn </span>split_off(<span class="kw-2">&amp;mut </span><span class="self">self</span>, at: usize) -&gt; <span class="self">Self </span>{
+ <span class="kw">if </span>at == <span class="self">self</span>.len() {
+ <span class="kw">return </span>Bytes::new();
+ }
+
+ <span class="kw">if </span>at == <span class="number">0 </span>{
+ <span class="kw">return </span>mem::replace(<span class="self">self</span>, Bytes::new());
+ }
+
+ <span class="macro">assert!</span>(
+ at &lt;= <span class="self">self</span>.len(),
+ <span class="string">&quot;split_off out of bounds: {:?} &lt;= {:?}&quot;</span>,
+ at,
+ <span class="self">self</span>.len(),
+ );
+
+ <span class="kw">let </span><span class="kw-2">mut </span>ret = <span class="self">self</span>.clone();
+
+ <span class="self">self</span>.len = at;
+
+ <span class="kw">unsafe </span>{ ret.inc_start(at) };
+
+ ret
+ }
+
+ <span class="doccomment">/// Splits the bytes into two at the given index.
+ ///
+ /// Afterwards `self` contains elements `[at, len)`, and the returned
+ /// `Bytes` contains elements `[0, at)`.
+ ///
+ /// This is an `O(1)` operation that just increases the reference count and
+ /// sets a few indices.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let mut a = Bytes::from(&amp;b&quot;hello world&quot;[..]);
+ /// let b = a.split_to(5);
+ ///
+ /// assert_eq!(&amp;a[..], b&quot; world&quot;);
+ /// assert_eq!(&amp;b[..], b&quot;hello&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Panics if `at &gt; len`.
+ </span><span class="attr">#[must_use = <span class="string">&quot;consider Bytes::advance if you don&#39;t need the other half&quot;</span>]
+ </span><span class="kw">pub fn </span>split_to(<span class="kw-2">&amp;mut </span><span class="self">self</span>, at: usize) -&gt; <span class="self">Self </span>{
+ <span class="kw">if </span>at == <span class="self">self</span>.len() {
+ <span class="kw">return </span>mem::replace(<span class="self">self</span>, Bytes::new());
+ }
+
+ <span class="kw">if </span>at == <span class="number">0 </span>{
+ <span class="kw">return </span>Bytes::new();
+ }
+
+ <span class="macro">assert!</span>(
+ at &lt;= <span class="self">self</span>.len(),
+ <span class="string">&quot;split_to out of bounds: {:?} &lt;= {:?}&quot;</span>,
+ at,
+ <span class="self">self</span>.len(),
+ );
+
+ <span class="kw">let </span><span class="kw-2">mut </span>ret = <span class="self">self</span>.clone();
+
+ <span class="kw">unsafe </span>{ <span class="self">self</span>.inc_start(at) };
+
+ ret.len = at;
+ ret
+ }
+
+ <span class="doccomment">/// Shortens the buffer, keeping the first `len` bytes and dropping the
+ /// rest.
+ ///
+ /// If `len` is greater than the buffer&#39;s current length, this has no
+ /// effect.
+ ///
+ /// The [split_off](`Self::split_off()`) method can emulate `truncate`, but this causes the
+ /// excess bytes to be returned instead of dropped.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let mut buf = Bytes::from(&amp;b&quot;hello world&quot;[..]);
+ /// buf.truncate(5);
+ /// assert_eq!(buf, b&quot;hello&quot;[..]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>truncate(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) {
+ <span class="kw">if </span>len &lt; <span class="self">self</span>.len {
+ <span class="comment">// The Vec &quot;promotable&quot; vtables do not store the capacity,
+ // so we cannot truncate while using this repr. We *have* to
+ // promote using `split_off` so the capacity can be stored.
+ </span><span class="kw">if </span><span class="self">self</span>.vtable <span class="kw">as </span><span class="kw-2">*const </span>Vtable == <span class="kw-2">&amp;</span>PROMOTABLE_EVEN_VTABLE
+ || <span class="self">self</span>.vtable <span class="kw">as </span><span class="kw-2">*const </span>Vtable == <span class="kw-2">&amp;</span>PROMOTABLE_ODD_VTABLE
+ {
+ drop(<span class="self">self</span>.split_off(len));
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.len = len;
+ }
+ }
+ }
+
+ <span class="doccomment">/// Clears the buffer, removing all data.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::Bytes;
+ ///
+ /// let mut buf = Bytes::from(&amp;b&quot;hello world&quot;[..]);
+ /// buf.clear();
+ /// assert!(buf.is_empty());
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>clear(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
+ <span class="self">self</span>.truncate(<span class="number">0</span>);
+ }
+
+ <span class="doccomment">/// Try to convert self into `BytesMut`.
+ ///
+ /// If `self` is unique for the entire original buffer, this will succeed
+ /// and return a `BytesMut` with the contents of `self` without copying.
+ /// If `self` is not unique for the entire original buffer, this will fail
+ /// and return self.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{Bytes, BytesMut};
+ ///
+ /// let bytes = Bytes::from(b&quot;hello&quot;.to_vec());
+ /// assert_eq!(bytes.try_into_mut(), Ok(BytesMut::from(&amp;b&quot;hello&quot;[..])));
+ /// ```
+ </span><span class="kw">pub fn </span>try_into_mut(<span class="self">self</span>) -&gt; <span class="prelude-ty">Result</span>&lt;BytesMut, Bytes&gt; {
+ <span class="kw">if </span><span class="self">self</span>.is_unique() {
+ <span class="prelude-val">Ok</span>(<span class="self">self</span>.into())
+ } <span class="kw">else </span>{
+ <span class="prelude-val">Err</span>(<span class="self">self</span>)
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>with_vtable(
+ ptr: <span class="kw-2">*const </span>u8,
+ len: usize,
+ data: AtomicPtr&lt;()&gt;,
+ vtable: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>Vtable,
+ ) -&gt; Bytes {
+ Bytes {
+ ptr,
+ len,
+ data,
+ vtable,
+ }
+ }
+
+ <span class="comment">// private
+
+ </span><span class="attr">#[inline]
+ </span><span class="kw">fn </span>as_slice(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">unsafe </span>{ slice::from_raw_parts(<span class="self">self</span>.ptr, <span class="self">self</span>.len) }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>inc_start(<span class="kw-2">&amp;mut </span><span class="self">self</span>, by: usize) {
+ <span class="comment">// should already be asserted, but debug assert for tests
+ </span><span class="macro">debug_assert!</span>(<span class="self">self</span>.len &gt;= by, <span class="string">&quot;internal: inc_start out of bounds&quot;</span>);
+ <span class="self">self</span>.len -= by;
+ <span class="self">self</span>.ptr = <span class="self">self</span>.ptr.add(by);
+ }
+}
+
+<span class="comment">// Vtable must enforce this behavior
+</span><span class="kw">unsafe impl </span>Send <span class="kw">for </span>Bytes {}
+<span class="kw">unsafe impl </span>Sync <span class="kw">for </span>Bytes {}
+
+<span class="kw">impl </span>Drop <span class="kw">for </span>Bytes {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>drop(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
+ <span class="kw">unsafe </span>{ (<span class="self">self</span>.vtable.drop)(<span class="kw-2">&amp;mut </span><span class="self">self</span>.data, <span class="self">self</span>.ptr, <span class="self">self</span>.len) }
+ }
+}
+
+<span class="kw">impl </span>Clone <span class="kw">for </span>Bytes {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>clone(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; Bytes {
+ <span class="kw">unsafe </span>{ (<span class="self">self</span>.vtable.clone)(<span class="kw-2">&amp;</span><span class="self">self</span>.data, <span class="self">self</span>.ptr, <span class="self">self</span>.len) }
+ }
+}
+
+<span class="kw">impl </span>Buf <span class="kw">for </span>Bytes {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self</span>.as_slice()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="macro">assert!</span>(
+ cnt &lt;= <span class="self">self</span>.len(),
+ <span class="string">&quot;cannot advance past `remaining`: {:?} &lt;= {:?}&quot;</span>,
+ cnt,
+ <span class="self">self</span>.len(),
+ );
+
+ <span class="kw">unsafe </span>{
+ <span class="self">self</span>.inc_start(cnt);
+ }
+ }
+
+ <span class="kw">fn </span>copy_to_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) -&gt; <span class="self">Self </span>{
+ <span class="self">self</span>.split_to(len)
+ }
+}
+
+<span class="kw">impl </span>Deref <span class="kw">for </span>Bytes {
+ <span class="kw">type </span>Target = [u8];
+
+ <span class="attr">#[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>[u8] {
+ <span class="self">self</span>.as_slice()
+ }
+}
+
+<span class="kw">impl </span>AsRef&lt;[u8]&gt; <span class="kw">for </span>Bytes {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>as_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self</span>.as_slice()
+ }
+}
+
+<span class="kw">impl </span>hash::Hash <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>hash&lt;H&gt;(<span class="kw-2">&amp;</span><span class="self">self</span>, state: <span class="kw-2">&amp;mut </span>H)
+ <span class="kw">where
+ </span>H: hash::Hasher,
+ {
+ <span class="self">self</span>.as_slice().hash(state);
+ }
+}
+
+<span class="kw">impl </span>Borrow&lt;[u8]&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>borrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self</span>.as_slice()
+ }
+}
+
+<span class="kw">impl </span>IntoIterator <span class="kw">for </span>Bytes {
+ <span class="kw">type </span>Item = u8;
+ <span class="kw">type </span>IntoIter = IntoIter&lt;Bytes&gt;;
+
+ <span class="kw">fn </span>into_iter(<span class="self">self</span>) -&gt; <span class="self">Self</span>::IntoIter {
+ IntoIter::new(<span class="self">self</span>)
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>&gt; IntoIterator <span class="kw">for </span><span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>Bytes {
+ <span class="kw">type </span>Item = <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>u8;
+ <span class="kw">type </span>IntoIter = core::slice::Iter&lt;<span class="lifetime">&#39;a</span>, u8&gt;;
+
+ <span class="kw">fn </span>into_iter(<span class="self">self</span>) -&gt; <span class="self">Self</span>::IntoIter {
+ <span class="self">self</span>.as_slice().iter()
+ }
+}
+
+<span class="kw">impl </span>FromIterator&lt;u8&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from_iter&lt;T: IntoIterator&lt;Item = u8&gt;&gt;(into_iter: T) -&gt; <span class="self">Self </span>{
+ Vec::from_iter(into_iter).into()
+ }
+}
+
+<span class="comment">// impl Eq
+
+</span><span class="kw">impl </span>PartialEq <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="self">self</span>.as_slice() == other.as_slice()
+ }
+}
+
+<span class="kw">impl </span>PartialOrd <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.as_slice().partial_cmp(other.as_slice())
+ }
+}
+
+<span class="kw">impl </span>Ord <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; cmp::Ordering {
+ <span class="self">self</span>.as_slice().cmp(other.as_slice())
+ }
+}
+
+<span class="kw">impl </span>Eq <span class="kw">for </span>Bytes {}
+
+<span class="kw">impl </span>PartialEq&lt;[u8]&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>[u8]) -&gt; bool {
+ <span class="self">self</span>.as_slice() == other
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;[u8]&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.as_slice().partial_cmp(other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span>[u8] {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Bytes&gt; <span class="kw">for </span>[u8] {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>, other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;str&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>str) -&gt; bool {
+ <span class="self">self</span>.as_slice() == other.as_bytes()
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;str&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.as_slice().partial_cmp(other.as_bytes())
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span>str {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Bytes&gt; <span class="kw">for </span>str {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>.as_bytes(), other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Vec&lt;u8&gt;&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Vec&lt;u8&gt;) -&gt; bool {
+ <span class="kw-2">*</span><span class="self">self </span>== other[..]
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Vec&lt;u8&gt;&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Vec&lt;u8&gt;) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.as_slice().partial_cmp(<span class="kw-2">&amp;</span>other[..])
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Bytes&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>, other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;String&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>String) -&gt; bool {
+ <span class="kw-2">*</span><span class="self">self </span>== other[..]
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;String&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>String) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.as_slice().partial_cmp(other.as_bytes())
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span>String {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Bytes&gt; <span class="kw">for </span>String {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>.as_bytes(), other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Bytes&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>, other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>str {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Bytes&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>str {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>.as_bytes(), other)
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>, T: <span class="question-mark">?</span>Sized&gt; PartialEq&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>T&gt; <span class="kw">for </span>Bytes
+<span class="kw">where
+ </span>Bytes: PartialEq&lt;T&gt;,
+{
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: &amp;&amp;<span class="lifetime">&#39;a </span>T) -&gt; bool {
+ <span class="kw-2">*</span><span class="self">self </span>== <span class="kw-2">**</span>other
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>, T: <span class="question-mark">?</span>Sized&gt; PartialOrd&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>T&gt; <span class="kw">for </span>Bytes
+<span class="kw">where
+ </span>Bytes: PartialOrd&lt;T&gt;,
+{
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: &amp;&amp;<span class="lifetime">&#39;a </span>T) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.partial_cmp(<span class="kw-2">&amp;**</span>other)
+ }
+}
+
+<span class="comment">// impl From
+
+</span><span class="kw">impl </span>Default <span class="kw">for </span>Bytes {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>default() -&gt; Bytes {
+ Bytes::new()
+ }
+}
+
+<span class="kw">impl </span>From&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>[u8]&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from(slice: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>[u8]) -&gt; Bytes {
+ Bytes::from_static(slice)
+ }
+}
+
+<span class="kw">impl </span>From&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>str&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from(slice: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static </span>str) -&gt; Bytes {
+ Bytes::from_static(slice.as_bytes())
+ }
+}
+
+<span class="kw">impl </span>From&lt;Vec&lt;u8&gt;&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from(vec: Vec&lt;u8&gt;) -&gt; Bytes {
+ <span class="kw">let </span><span class="kw-2">mut </span>vec = ManuallyDrop::new(vec);
+ <span class="kw">let </span>ptr = vec.as_mut_ptr();
+ <span class="kw">let </span>len = vec.len();
+ <span class="kw">let </span>cap = vec.capacity();
+
+ <span class="comment">// Avoid an extra allocation if possible.
+ </span><span class="kw">if </span>len == cap {
+ <span class="kw">let </span>vec = ManuallyDrop::into_inner(vec);
+ <span class="kw">return </span>Bytes::from(vec.into_boxed_slice());
+ }
+
+ <span class="kw">let </span>shared = Box::new(Shared {
+ buf: ptr,
+ cap,
+ ref_cnt: AtomicUsize::new(<span class="number">1</span>),
+ });
+
+ <span class="kw">let </span>shared = Box::into_raw(shared);
+ <span class="comment">// The pointer should be aligned, so this assert should
+ // always succeed.
+ </span><span class="macro">debug_assert!</span>(
+ <span class="number">0 </span>== (shared <span class="kw">as </span>usize &amp; KIND_MASK),
+ <span class="string">&quot;internal: Box&lt;Shared&gt; should have an aligned pointer&quot;</span>,
+ );
+ Bytes {
+ ptr,
+ len,
+ data: AtomicPtr::new(shared <span class="kw">as _</span>),
+ vtable: <span class="kw-2">&amp;</span>SHARED_VTABLE,
+ }
+ }
+}
+
+<span class="kw">impl </span>From&lt;Box&lt;[u8]&gt;&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from(slice: Box&lt;[u8]&gt;) -&gt; Bytes {
+ <span class="comment">// Box&lt;[u8]&gt; doesn&#39;t contain a heap allocation for empty slices,
+ // so the pointer isn&#39;t aligned enough for the KIND_VEC stashing to
+ // work.
+ </span><span class="kw">if </span>slice.is_empty() {
+ <span class="kw">return </span>Bytes::new();
+ }
+
+ <span class="kw">let </span>len = slice.len();
+ <span class="kw">let </span>ptr = Box::into_raw(slice) <span class="kw">as </span><span class="kw-2">*mut </span>u8;
+
+ <span class="kw">if </span>ptr <span class="kw">as </span>usize &amp; <span class="number">0x1 </span>== <span class="number">0 </span>{
+ <span class="kw">let </span>data = ptr_map(ptr, |addr| addr | KIND_VEC);
+ Bytes {
+ ptr,
+ len,
+ data: AtomicPtr::new(data.cast()),
+ vtable: <span class="kw-2">&amp;</span>PROMOTABLE_EVEN_VTABLE,
+ }
+ } <span class="kw">else </span>{
+ Bytes {
+ ptr,
+ len,
+ data: AtomicPtr::new(ptr.cast()),
+ vtable: <span class="kw-2">&amp;</span>PROMOTABLE_ODD_VTABLE,
+ }
+ }
+ }
+}
+
+<span class="kw">impl </span>From&lt;Bytes&gt; <span class="kw">for </span>BytesMut {
+ <span class="doccomment">/// Convert self into `BytesMut`.
+ ///
+ /// If `bytes` is unique for the entire original buffer, this will return a
+ /// `BytesMut` with the contents of `bytes` without copying.
+ /// If `bytes` is not unique for the entire original buffer, this will make
+ /// a copy of `bytes` subset of the original buffer in a new `BytesMut`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{Bytes, BytesMut};
+ ///
+ /// let bytes = Bytes::from(b&quot;hello&quot;.to_vec());
+ /// assert_eq!(BytesMut::from(bytes), BytesMut::from(&amp;b&quot;hello&quot;[..]));
+ /// ```
+ </span><span class="kw">fn </span>from(bytes: Bytes) -&gt; <span class="self">Self </span>{
+ <span class="kw">let </span>bytes = ManuallyDrop::new(bytes);
+ <span class="kw">unsafe </span>{ (bytes.vtable.to_mut)(<span class="kw-2">&amp;</span>bytes.data, bytes.ptr, bytes.len) }
+ }
+}
+
+<span class="kw">impl </span>From&lt;String&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from(s: String) -&gt; Bytes {
+ Bytes::from(s.into_bytes())
+ }
+}
+
+<span class="kw">impl </span>From&lt;Bytes&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="kw">fn </span>from(bytes: Bytes) -&gt; Vec&lt;u8&gt; {
+ <span class="kw">let </span>bytes = ManuallyDrop::new(bytes);
+ <span class="kw">unsafe </span>{ (bytes.vtable.to_vec)(<span class="kw-2">&amp;</span>bytes.data, bytes.ptr, bytes.len) }
+ }
+}
+
+<span class="comment">// ===== impl Vtable =====
+
+</span><span class="kw">impl </span>fmt::Debug <span class="kw">for </span>Vtable {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
+ f.debug_struct(<span class="string">&quot;Vtable&quot;</span>)
+ .field(<span class="string">&quot;clone&quot;</span>, <span class="kw-2">&amp;</span>(<span class="self">self</span>.clone <span class="kw">as </span><span class="kw-2">*const </span>()))
+ .field(<span class="string">&quot;drop&quot;</span>, <span class="kw-2">&amp;</span>(<span class="self">self</span>.drop <span class="kw">as </span><span class="kw-2">*const </span>()))
+ .finish()
+ }
+}
+
+<span class="comment">// ===== impl StaticVtable =====
+
+</span><span class="kw">const </span>STATIC_VTABLE: Vtable = Vtable {
+ clone: static_clone,
+ to_vec: static_to_vec,
+ to_mut: static_to_mut,
+ is_unique: static_is_unique,
+ drop: static_drop,
+};
+
+<span class="kw">unsafe fn </span>static_clone(<span class="kw">_</span>: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>slice = slice::from_raw_parts(ptr, len);
+ Bytes::from_static(slice)
+}
+
+<span class="kw">unsafe fn </span>static_to_vec(<span class="kw">_</span>: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Vec&lt;u8&gt; {
+ <span class="kw">let </span>slice = slice::from_raw_parts(ptr, len);
+ slice.to_vec()
+}
+
+<span class="kw">unsafe fn </span>static_to_mut(<span class="kw">_</span>: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; BytesMut {
+ <span class="kw">let </span>slice = slice::from_raw_parts(ptr, len);
+ BytesMut::from(slice)
+}
+
+<span class="kw">fn </span>static_is_unique(<span class="kw">_</span>: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;) -&gt; bool {
+ <span class="bool-val">false
+</span>}
+
+<span class="kw">unsafe fn </span>static_drop(<span class="kw">_</span>: <span class="kw-2">&amp;mut </span>AtomicPtr&lt;()&gt;, <span class="kw">_</span>: <span class="kw-2">*const </span>u8, <span class="kw">_</span>: usize) {
+ <span class="comment">// nothing to drop for &amp;&#39;static [u8]
+</span>}
+
+<span class="comment">// ===== impl PromotableVtable =====
+
+</span><span class="kw">static </span>PROMOTABLE_EVEN_VTABLE: Vtable = Vtable {
+ clone: promotable_even_clone,
+ to_vec: promotable_even_to_vec,
+ to_mut: promotable_even_to_mut,
+ is_unique: promotable_is_unique,
+ drop: promotable_even_drop,
+};
+
+<span class="kw">static </span>PROMOTABLE_ODD_VTABLE: Vtable = Vtable {
+ clone: promotable_odd_clone,
+ to_vec: promotable_odd_to_vec,
+ to_mut: promotable_odd_to_mut,
+ is_unique: promotable_is_unique,
+ drop: promotable_odd_drop,
+};
+
+<span class="kw">unsafe fn </span>promotable_even_clone(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>shared = data.load(Ordering::Acquire);
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ shallow_clone_arc(shared.cast(), ptr, len)
+ } <span class="kw">else </span>{
+ <span class="macro">debug_assert_eq!</span>(kind, KIND_VEC);
+ <span class="kw">let </span>buf = ptr_map(shared.cast(), |addr| addr &amp; !KIND_MASK);
+ shallow_clone_vec(data, shared, buf, ptr, len)
+ }
+}
+
+<span class="kw">unsafe fn </span>promotable_to_vec(
+ data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;,
+ ptr: <span class="kw-2">*const </span>u8,
+ len: usize,
+ f: <span class="kw">fn</span>(<span class="kw-2">*mut </span>()) -&gt; <span class="kw-2">*mut </span>u8,
+) -&gt; Vec&lt;u8&gt; {
+ <span class="kw">let </span>shared = data.load(Ordering::Acquire);
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ shared_to_vec_impl(shared.cast(), ptr, len)
+ } <span class="kw">else </span>{
+ <span class="comment">// If Bytes holds a Vec, then the offset must be 0.
+ </span><span class="macro">debug_assert_eq!</span>(kind, KIND_VEC);
+
+ <span class="kw">let </span>buf = f(shared);
+
+ <span class="kw">let </span>cap = offset_from(ptr, buf) + len;
+
+ <span class="comment">// Copy back buffer
+ </span>ptr::copy(ptr, buf, len);
+
+ Vec::from_raw_parts(buf, len, cap)
+ }
+}
+
+<span class="kw">unsafe fn </span>promotable_to_mut(
+ data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;,
+ ptr: <span class="kw-2">*const </span>u8,
+ len: usize,
+ f: <span class="kw">fn</span>(<span class="kw-2">*mut </span>()) -&gt; <span class="kw-2">*mut </span>u8,
+) -&gt; BytesMut {
+ <span class="kw">let </span>shared = data.load(Ordering::Acquire);
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ shared_to_mut_impl(shared.cast(), ptr, len)
+ } <span class="kw">else </span>{
+ <span class="comment">// KIND_VEC is a view of an underlying buffer at a certain offset.
+ // The ptr + len always represents the end of that buffer.
+ // Before truncating it, it is first promoted to KIND_ARC.
+ // Thus, we can safely reconstruct a Vec from it without leaking memory.
+ </span><span class="macro">debug_assert_eq!</span>(kind, KIND_VEC);
+
+ <span class="kw">let </span>buf = f(shared);
+ <span class="kw">let </span>off = offset_from(ptr, buf);
+ <span class="kw">let </span>cap = off + len;
+ <span class="kw">let </span>v = Vec::from_raw_parts(buf, cap, cap);
+
+ <span class="kw">let </span><span class="kw-2">mut </span>b = BytesMut::from_vec(v);
+ b.advance_unchecked(off);
+ b
+ }
+}
+
+<span class="kw">unsafe fn </span>promotable_even_to_vec(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Vec&lt;u8&gt; {
+ promotable_to_vec(data, ptr, len, |shared| {
+ ptr_map(shared.cast(), |addr| addr &amp; !KIND_MASK)
+ })
+}
+
+<span class="kw">unsafe fn </span>promotable_even_to_mut(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; BytesMut {
+ promotable_to_mut(data, ptr, len, |shared| {
+ ptr_map(shared.cast(), |addr| addr &amp; !KIND_MASK)
+ })
+}
+
+<span class="kw">unsafe fn </span>promotable_even_drop(data: <span class="kw-2">&amp;mut </span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) {
+ data.with_mut(|shared| {
+ <span class="kw">let </span>shared = <span class="kw-2">*</span>shared;
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ release_shared(shared.cast());
+ } <span class="kw">else </span>{
+ <span class="macro">debug_assert_eq!</span>(kind, KIND_VEC);
+ <span class="kw">let </span>buf = ptr_map(shared.cast(), |addr| addr &amp; !KIND_MASK);
+ free_boxed_slice(buf, ptr, len);
+ }
+ });
+}
+
+<span class="kw">unsafe fn </span>promotable_odd_clone(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>shared = data.load(Ordering::Acquire);
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ shallow_clone_arc(shared <span class="kw">as _</span>, ptr, len)
+ } <span class="kw">else </span>{
+ <span class="macro">debug_assert_eq!</span>(kind, KIND_VEC);
+ shallow_clone_vec(data, shared, shared.cast(), ptr, len)
+ }
+}
+
+<span class="kw">unsafe fn </span>promotable_odd_to_vec(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Vec&lt;u8&gt; {
+ promotable_to_vec(data, ptr, len, |shared| shared.cast())
+}
+
+<span class="kw">unsafe fn </span>promotable_odd_to_mut(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; BytesMut {
+ promotable_to_mut(data, ptr, len, |shared| shared.cast())
+}
+
+<span class="kw">unsafe fn </span>promotable_odd_drop(data: <span class="kw-2">&amp;mut </span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) {
+ data.with_mut(|shared| {
+ <span class="kw">let </span>shared = <span class="kw-2">*</span>shared;
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ release_shared(shared.cast());
+ } <span class="kw">else </span>{
+ <span class="macro">debug_assert_eq!</span>(kind, KIND_VEC);
+
+ free_boxed_slice(shared.cast(), ptr, len);
+ }
+ });
+}
+
+<span class="kw">unsafe fn </span>promotable_is_unique(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;) -&gt; bool {
+ <span class="kw">let </span>shared = data.load(Ordering::Acquire);
+ <span class="kw">let </span>kind = shared <span class="kw">as </span>usize &amp; KIND_MASK;
+
+ <span class="kw">if </span>kind == KIND_ARC {
+ <span class="kw">let </span>ref_cnt = (<span class="kw-2">*</span>shared.cast::&lt;Shared&gt;()).ref_cnt.load(Ordering::Relaxed);
+ ref_cnt == <span class="number">1
+ </span>} <span class="kw">else </span>{
+ <span class="bool-val">true
+ </span>}
+}
+
+<span class="kw">unsafe fn </span>free_boxed_slice(buf: <span class="kw-2">*mut </span>u8, offset: <span class="kw-2">*const </span>u8, len: usize) {
+ <span class="kw">let </span>cap = offset_from(offset, buf) + len;
+ dealloc(buf, Layout::from_size_align(cap, <span class="number">1</span>).unwrap())
+}
+
+<span class="comment">// ===== impl SharedVtable =====
+
+</span><span class="kw">struct </span>Shared {
+ <span class="comment">// Holds arguments to dealloc upon Drop, but otherwise doesn&#39;t use them
+ </span>buf: <span class="kw-2">*mut </span>u8,
+ cap: usize,
+ ref_cnt: AtomicUsize,
+}
+
+<span class="kw">impl </span>Drop <span class="kw">for </span>Shared {
+ <span class="kw">fn </span>drop(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
+ <span class="kw">unsafe </span>{ dealloc(<span class="self">self</span>.buf, Layout::from_size_align(<span class="self">self</span>.cap, <span class="number">1</span>).unwrap()) }
+ }
+}
+
+<span class="comment">// Assert that the alignment of `Shared` is divisible by 2.
+// This is a necessary invariant since we depend on allocating `Shared` a
+// shared object to implicitly carry the `KIND_ARC` flag in its pointer.
+// This flag is set when the LSB is 0.
+</span><span class="kw">const _</span>: [(); <span class="number">0 </span>- mem::align_of::&lt;Shared&gt;() % <span class="number">2</span>] = []; <span class="comment">// Assert that the alignment of `Shared` is divisible by 2.
+
+</span><span class="kw">static </span>SHARED_VTABLE: Vtable = Vtable {
+ clone: shared_clone,
+ to_vec: shared_to_vec,
+ to_mut: shared_to_mut,
+ is_unique: shared_is_unique,
+ drop: shared_drop,
+};
+
+<span class="kw">const </span>KIND_ARC: usize = <span class="number">0b0</span>;
+<span class="kw">const </span>KIND_VEC: usize = <span class="number">0b1</span>;
+<span class="kw">const </span>KIND_MASK: usize = <span class="number">0b1</span>;
+
+<span class="kw">unsafe fn </span>shared_clone(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>shared = data.load(Ordering::Relaxed);
+ shallow_clone_arc(shared <span class="kw">as _</span>, ptr, len)
+}
+
+<span class="kw">unsafe fn </span>shared_to_vec_impl(shared: <span class="kw-2">*mut </span>Shared, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Vec&lt;u8&gt; {
+ <span class="comment">// Check that the ref_cnt is 1 (unique).
+ //
+ // If it is unique, then it is set to 0 with AcqRel fence for the same
+ // reason in release_shared.
+ //
+ // Otherwise, we take the other branch and call release_shared.
+ </span><span class="kw">if </span>(<span class="kw-2">*</span>shared)
+ .ref_cnt
+ .compare_exchange(<span class="number">1</span>, <span class="number">0</span>, Ordering::AcqRel, Ordering::Relaxed)
+ .is_ok()
+ {
+ <span class="comment">// Deallocate the `Shared` instance without running its destructor.
+ </span><span class="kw">let </span>shared = <span class="kw-2">*</span>Box::from_raw(shared);
+ <span class="kw">let </span>shared = ManuallyDrop::new(shared);
+ <span class="kw">let </span>buf = shared.buf;
+ <span class="kw">let </span>cap = shared.cap;
+
+ <span class="comment">// Copy back buffer
+ </span>ptr::copy(ptr, buf, len);
+
+ Vec::from_raw_parts(buf, len, cap)
+ } <span class="kw">else </span>{
+ <span class="kw">let </span>v = slice::from_raw_parts(ptr, len).to_vec();
+ release_shared(shared);
+ v
+ }
+}
+
+<span class="kw">unsafe fn </span>shared_to_vec(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Vec&lt;u8&gt; {
+ shared_to_vec_impl(data.load(Ordering::Relaxed).cast(), ptr, len)
+}
+
+<span class="kw">unsafe fn </span>shared_to_mut_impl(shared: <span class="kw-2">*mut </span>Shared, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; BytesMut {
+ <span class="comment">// The goal is to check if the current handle is the only handle
+ // that currently has access to the buffer. This is done by
+ // checking if the `ref_cnt` is currently 1.
+ //
+ // The `Acquire` ordering synchronizes with the `Release` as
+ // part of the `fetch_sub` in `release_shared`. The `fetch_sub`
+ // operation guarantees that any mutations done in other threads
+ // are ordered before the `ref_cnt` is decremented. As such,
+ // this `Acquire` will guarantee that those mutations are
+ // visible to the current thread.
+ //
+ // Otherwise, we take the other branch, copy the data and call `release_shared`.
+ </span><span class="kw">if </span>(<span class="kw-2">*</span>shared).ref_cnt.load(Ordering::Acquire) == <span class="number">1 </span>{
+ <span class="comment">// Deallocate the `Shared` instance without running its destructor.
+ </span><span class="kw">let </span>shared = <span class="kw-2">*</span>Box::from_raw(shared);
+ <span class="kw">let </span>shared = ManuallyDrop::new(shared);
+ <span class="kw">let </span>buf = shared.buf;
+ <span class="kw">let </span>cap = shared.cap;
+
+ <span class="comment">// Rebuild Vec
+ </span><span class="kw">let </span>off = offset_from(ptr, buf);
+ <span class="kw">let </span>v = Vec::from_raw_parts(buf, len + off, cap);
+
+ <span class="kw">let </span><span class="kw-2">mut </span>b = BytesMut::from_vec(v);
+ b.advance_unchecked(off);
+ b
+ } <span class="kw">else </span>{
+ <span class="comment">// Copy the data from Shared in a new Vec, then release it
+ </span><span class="kw">let </span>v = slice::from_raw_parts(ptr, len).to_vec();
+ release_shared(shared);
+ BytesMut::from_vec(v)
+ }
+}
+
+<span class="kw">unsafe fn </span>shared_to_mut(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; BytesMut {
+ shared_to_mut_impl(data.load(Ordering::Relaxed).cast(), ptr, len)
+}
+
+<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>shared_is_unique(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;) -&gt; bool {
+ <span class="kw">let </span>shared = data.load(Ordering::Acquire);
+ <span class="kw">let </span>ref_cnt = (<span class="kw-2">*</span>shared.cast::&lt;Shared&gt;()).ref_cnt.load(Ordering::Relaxed);
+ ref_cnt == <span class="number">1
+</span>}
+
+<span class="kw">unsafe fn </span>shared_drop(data: <span class="kw-2">&amp;mut </span>AtomicPtr&lt;()&gt;, _ptr: <span class="kw-2">*const </span>u8, _len: usize) {
+ data.with_mut(|shared| {
+ release_shared(shared.cast());
+ });
+}
+
+<span class="kw">unsafe fn </span>shallow_clone_arc(shared: <span class="kw-2">*mut </span>Shared, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>old_size = (<span class="kw-2">*</span>shared).ref_cnt.fetch_add(<span class="number">1</span>, Ordering::Relaxed);
+
+ <span class="kw">if </span>old_size &gt; usize::MAX &gt;&gt; <span class="number">1 </span>{
+ <span class="kw">crate</span>::abort();
+ }
+
+ Bytes {
+ ptr,
+ len,
+ data: AtomicPtr::new(shared <span class="kw">as _</span>),
+ vtable: <span class="kw-2">&amp;</span>SHARED_VTABLE,
+ }
+}
+
+<span class="attr">#[cold]
+</span><span class="kw">unsafe fn </span>shallow_clone_vec(
+ atom: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;,
+ ptr: <span class="kw-2">*const </span>(),
+ buf: <span class="kw-2">*mut </span>u8,
+ offset: <span class="kw-2">*const </span>u8,
+ len: usize,
+) -&gt; Bytes {
+ <span class="comment">// If the buffer is still tracked in a `Vec&lt;u8&gt;`. It is time to
+ // promote the vec to an `Arc`. This could potentially be called
+ // concurrently, so some care must be taken.
+
+ // First, allocate a new `Shared` instance containing the
+ // `Vec` fields. It&#39;s important to note that `ptr`, `len`,
+ // and `cap` cannot be mutated without having `&amp;mut self`.
+ // This means that these fields will not be concurrently
+ // updated and since the buffer hasn&#39;t been promoted to an
+ // `Arc`, those three fields still are the components of the
+ // vector.
+ </span><span class="kw">let </span>shared = Box::new(Shared {
+ buf,
+ cap: offset_from(offset, buf) + len,
+ <span class="comment">// Initialize refcount to 2. One for this reference, and one
+ // for the new clone that will be returned from
+ // `shallow_clone`.
+ </span>ref_cnt: AtomicUsize::new(<span class="number">2</span>),
+ });
+
+ <span class="kw">let </span>shared = Box::into_raw(shared);
+
+ <span class="comment">// The pointer should be aligned, so this assert should
+ // always succeed.
+ </span><span class="macro">debug_assert!</span>(
+ <span class="number">0 </span>== (shared <span class="kw">as </span>usize &amp; KIND_MASK),
+ <span class="string">&quot;internal: Box&lt;Shared&gt; should have an aligned pointer&quot;</span>,
+ );
+
+ <span class="comment">// Try compare &amp; swapping the pointer into the `arc` field.
+ // `Release` is used synchronize with other threads that
+ // will load the `arc` field.
+ //
+ // If the `compare_exchange` fails, then the thread lost the
+ // race to promote the buffer to shared. The `Acquire`
+ // ordering will synchronize with the `compare_exchange`
+ // that happened in the other thread and the `Shared`
+ // pointed to by `actual` will be visible.
+ </span><span class="kw">match </span>atom.compare_exchange(ptr <span class="kw">as _</span>, shared <span class="kw">as _</span>, Ordering::AcqRel, Ordering::Acquire) {
+ <span class="prelude-val">Ok</span>(actual) =&gt; {
+ <span class="macro">debug_assert!</span>(actual <span class="kw">as </span>usize == ptr <span class="kw">as </span>usize);
+ <span class="comment">// The upgrade was successful, the new handle can be
+ // returned.
+ </span>Bytes {
+ ptr: offset,
+ len,
+ data: AtomicPtr::new(shared <span class="kw">as _</span>),
+ vtable: <span class="kw-2">&amp;</span>SHARED_VTABLE,
+ }
+ }
+ <span class="prelude-val">Err</span>(actual) =&gt; {
+ <span class="comment">// The upgrade failed, a concurrent clone happened. Release
+ // the allocation that was made in this thread, it will not
+ // be needed.
+ </span><span class="kw">let </span>shared = Box::from_raw(shared);
+ mem::forget(<span class="kw-2">*</span>shared);
+
+ <span class="comment">// Buffer already promoted to shared storage, so increment ref
+ // count.
+ </span>shallow_clone_arc(actual <span class="kw">as _</span>, offset, len)
+ }
+ }
+}
+
+<span class="kw">unsafe fn </span>release_shared(ptr: <span class="kw-2">*mut </span>Shared) {
+ <span class="comment">// `Shared` storage... follow the drop steps from Arc.
+ </span><span class="kw">if </span>(<span class="kw-2">*</span>ptr).ref_cnt.fetch_sub(<span class="number">1</span>, Ordering::Release) != <span class="number">1 </span>{
+ <span class="kw">return</span>;
+ }
+
+ <span class="comment">// This fence is needed to prevent reordering of use of the data and
+ // deletion of the data. Because it is marked `Release`, the decreasing
+ // of the reference count synchronizes with this `Acquire` fence. This
+ // means that use of the data happens before decreasing the reference
+ // count, which happens before this fence, which happens before the
+ // deletion of the data.
+ //
+ // As explained in the [Boost documentation][1],
+ //
+ // &gt; It is important to enforce any possible access to the object in one
+ // &gt; thread (through an existing reference) to *happen before* deleting
+ // &gt; the object in a different thread. This is achieved by a &quot;release&quot;
+ // &gt; operation after dropping a reference (any access to the object
+ // &gt; through this reference must obviously happened before), and an
+ // &gt; &quot;acquire&quot; operation before deleting the object.
+ //
+ // [1]: (www.boost.org/doc/libs/1_55_0/doc/html/atomic/usage_examples.html)
+ //
+ // Thread sanitizer does not support atomic fences. Use an atomic load
+ // instead.
+ </span>(<span class="kw-2">*</span>ptr).ref_cnt.load(Ordering::Acquire);
+
+ <span class="comment">// Drop the data
+ </span>drop(Box::from_raw(ptr));
+}
+
+<span class="comment">// Ideally we would always use this version of `ptr_map` since it is strict
+// provenance compatible, but it results in worse codegen. We will however still
+// use it on miri because it gives better diagnostics for people who test bytes
+// code with miri.
+//
+// See https://github.com/tokio-rs/bytes/pull/545 for more info.
+</span><span class="attr">#[cfg(miri)]
+</span><span class="kw">fn </span>ptr_map&lt;F&gt;(ptr: <span class="kw-2">*mut </span>u8, f: F) -&gt; <span class="kw-2">*mut </span>u8
+<span class="kw">where
+ </span>F: FnOnce(usize) -&gt; usize,
+{
+ <span class="kw">let </span>old_addr = ptr <span class="kw">as </span>usize;
+ <span class="kw">let </span>new_addr = f(old_addr);
+ <span class="kw">let </span>diff = new_addr.wrapping_sub(old_addr);
+ ptr.wrapping_add(diff)
+}
+
+<span class="attr">#[cfg(not(miri))]
+</span><span class="kw">fn </span>ptr_map&lt;F&gt;(ptr: <span class="kw-2">*mut </span>u8, f: F) -&gt; <span class="kw-2">*mut </span>u8
+<span class="kw">where
+ </span>F: FnOnce(usize) -&gt; usize,
+{
+ <span class="kw">let </span>old_addr = ptr <span class="kw">as </span>usize;
+ <span class="kw">let </span>new_addr = f(old_addr);
+ new_addr <span class="kw">as </span><span class="kw-2">*mut </span>u8
+}
+
+<span class="comment">// compile-fails
+
+</span><span class="doccomment">/// ```compile_fail
+/// use bytes::Bytes;
+/// #[deny(unused_must_use)]
+/// {
+/// let mut b1 = Bytes::from(&quot;hello world&quot;);
+/// b1.split_to(6);
+/// }
+/// ```
+</span><span class="kw">fn </span>_split_to_must_use() {}
+
+<span class="doccomment">/// ```compile_fail
+/// use bytes::Bytes;
+/// #[deny(unused_must_use)]
+/// {
+/// let mut b1 = Bytes::from(&quot;hello world&quot;);
+/// b1.split_off(6);
+/// }
+/// ```
+</span><span class="kw">fn </span>_split_off_must_use() {}
+
+<span class="comment">// fuzz tests
+</span><span class="attr">#[cfg(all(test, loom))]
+</span><span class="kw">mod </span>fuzz {
+ <span class="kw">use </span>loom::sync::Arc;
+ <span class="kw">use </span>loom::thread;
+
+ <span class="kw">use </span><span class="kw">super</span>::Bytes;
+ <span class="attr">#[test]
+ </span><span class="kw">fn </span>bytes_cloning_vec() {
+ loom::model(|| {
+ <span class="kw">let </span>a = Bytes::from(<span class="string">b&quot;abcdefgh&quot;</span>.to_vec());
+ <span class="kw">let </span>addr = a.as_ptr() <span class="kw">as </span>usize;
+
+ <span class="comment">// test the Bytes::clone is Sync by putting it in an Arc
+ </span><span class="kw">let </span>a1 = Arc::new(a);
+ <span class="kw">let </span>a2 = a1.clone();
+
+ <span class="kw">let </span>t1 = thread::spawn(<span class="kw">move </span>|| {
+ <span class="kw">let </span>b: Bytes = (<span class="kw-2">*</span>a1).clone();
+ <span class="macro">assert_eq!</span>(b.as_ptr() <span class="kw">as </span>usize, addr);
+ });
+
+ <span class="kw">let </span>t2 = thread::spawn(<span class="kw">move </span>|| {
+ <span class="kw">let </span>b: Bytes = (<span class="kw-2">*</span>a2).clone();
+ <span class="macro">assert_eq!</span>(b.as_ptr() <span class="kw">as </span>usize, addr);
+ });
+
+ t1.join().unwrap();
+ t2.join().unwrap();
+ });
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/bytes_mut.rs.html b/src/bytes/bytes_mut.rs.html
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+<span id="2">2</span>
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+<span id="1814">1814</span>
+<span id="1815">1815</span>
+<span id="1816">1816</span>
+<span id="1817">1817</span>
+<span id="1818">1818</span>
+<span id="1819">1819</span>
+<span id="1820">1820</span>
+<span id="1821">1821</span>
+<span id="1822">1822</span>
+<span id="1823">1823</span>
+<span id="1824">1824</span>
+<span id="1825">1825</span>
+<span id="1826">1826</span>
+<span id="1827">1827</span>
+<span id="1828">1828</span>
+<span id="1829">1829</span>
+<span id="1830">1830</span>
+<span id="1831">1831</span>
+<span id="1832">1832</span>
+<span id="1833">1833</span>
+<span id="1834">1834</span>
+</pre><pre class="rust"><code><span class="kw">use </span>core::iter::FromIterator;
+<span class="kw">use </span>core::mem::{<span class="self">self</span>, ManuallyDrop, MaybeUninit};
+<span class="kw">use </span>core::ops::{Deref, DerefMut};
+<span class="kw">use </span>core::ptr::{<span class="self">self</span>, NonNull};
+<span class="kw">use </span>core::{cmp, fmt, hash, isize, slice, usize};
+
+<span class="kw">use </span>alloc::{
+ borrow::{Borrow, BorrowMut},
+ boxed::Box,
+ string::String,
+ vec,
+ vec::Vec,
+};
+
+<span class="kw">use </span><span class="kw">crate</span>::buf::{IntoIter, UninitSlice};
+<span class="kw">use </span><span class="kw">crate</span>::bytes::Vtable;
+<span class="attr">#[allow(unused)]
+</span><span class="kw">use </span><span class="kw">crate</span>::loom::sync::atomic::AtomicMut;
+<span class="kw">use </span><span class="kw">crate</span>::loom::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
+<span class="kw">use crate</span>::{offset_from, Buf, BufMut, Bytes};
+
+<span class="doccomment">/// A unique reference to a contiguous slice of memory.
+///
+/// `BytesMut` represents a unique view into a potentially shared memory region.
+/// Given the uniqueness guarantee, owners of `BytesMut` handles are able to
+/// mutate the memory.
+///
+/// `BytesMut` can be thought of as containing a `buf: Arc&lt;Vec&lt;u8&gt;&gt;`, an offset
+/// into `buf`, a slice length, and a guarantee that no other `BytesMut` for the
+/// same `buf` overlaps with its slice. That guarantee means that a write lock
+/// is not required.
+///
+/// # Growth
+///
+/// `BytesMut`&#39;s `BufMut` implementation will implicitly grow its buffer as
+/// necessary. However, explicitly reserving the required space up-front before
+/// a series of inserts will be more efficient.
+///
+/// # Examples
+///
+/// ```
+/// use bytes::{BytesMut, BufMut};
+///
+/// let mut buf = BytesMut::with_capacity(64);
+///
+/// buf.put_u8(b&#39;h&#39;);
+/// buf.put_u8(b&#39;e&#39;);
+/// buf.put(&amp;b&quot;llo&quot;[..]);
+///
+/// assert_eq!(&amp;buf[..], b&quot;hello&quot;);
+///
+/// // Freeze the buffer so that it can be shared
+/// let a = buf.freeze();
+///
+/// // This does not allocate, instead `b` points to the same memory.
+/// let b = a.clone();
+///
+/// assert_eq!(&amp;a[..], b&quot;hello&quot;);
+/// assert_eq!(&amp;b[..], b&quot;hello&quot;);
+/// ```
+</span><span class="kw">pub struct </span>BytesMut {
+ ptr: NonNull&lt;u8&gt;,
+ len: usize,
+ cap: usize,
+ data: <span class="kw-2">*mut </span>Shared,
+}
+
+<span class="comment">// Thread-safe reference-counted container for the shared storage. This mostly
+// the same as `core::sync::Arc` but without the weak counter. The ref counting
+// fns are based on the ones found in `std`.
+//
+// The main reason to use `Shared` instead of `core::sync::Arc` is that it ends
+// up making the overall code simpler and easier to reason about. This is due to
+// some of the logic around setting `Inner::arc` and other ways the `arc` field
+// is used. Using `Arc` ended up requiring a number of funky transmutes and
+// other shenanigans to make it work.
+</span><span class="kw">struct </span>Shared {
+ vec: Vec&lt;u8&gt;,
+ original_capacity_repr: usize,
+ ref_count: AtomicUsize,
+}
+
+<span class="comment">// Assert that the alignment of `Shared` is divisible by 2.
+// This is a necessary invariant since we depend on allocating `Shared` a
+// shared object to implicitly carry the `KIND_ARC` flag in its pointer.
+// This flag is set when the LSB is 0.
+</span><span class="kw">const _</span>: [(); <span class="number">0 </span>- mem::align_of::&lt;Shared&gt;() % <span class="number">2</span>] = []; <span class="comment">// Assert that the alignment of `Shared` is divisible by 2.
+
+// Buffer storage strategy flags.
+</span><span class="kw">const </span>KIND_ARC: usize = <span class="number">0b0</span>;
+<span class="kw">const </span>KIND_VEC: usize = <span class="number">0b1</span>;
+<span class="kw">const </span>KIND_MASK: usize = <span class="number">0b1</span>;
+
+<span class="comment">// The max original capacity value. Any `Bytes` allocated with a greater initial
+// capacity will default to this.
+</span><span class="kw">const </span>MAX_ORIGINAL_CAPACITY_WIDTH: usize = <span class="number">17</span>;
+<span class="comment">// The original capacity algorithm will not take effect unless the originally
+// allocated capacity was at least 1kb in size.
+</span><span class="kw">const </span>MIN_ORIGINAL_CAPACITY_WIDTH: usize = <span class="number">10</span>;
+<span class="comment">// The original capacity is stored in powers of 2 starting at 1kb to a max of
+// 64kb. Representing it as such requires only 3 bits of storage.
+</span><span class="kw">const </span>ORIGINAL_CAPACITY_MASK: usize = <span class="number">0b11100</span>;
+<span class="kw">const </span>ORIGINAL_CAPACITY_OFFSET: usize = <span class="number">2</span>;
+
+<span class="kw">const </span>VEC_POS_OFFSET: usize = <span class="number">5</span>;
+<span class="comment">// When the storage is in the `Vec` representation, the pointer can be advanced
+// at most this value. This is due to the amount of storage available to track
+// the offset is usize - number of KIND bits and number of ORIGINAL_CAPACITY
+// bits.
+</span><span class="kw">const </span>MAX_VEC_POS: usize = usize::MAX &gt;&gt; VEC_POS_OFFSET;
+<span class="kw">const </span>NOT_VEC_POS_MASK: usize = <span class="number">0b11111</span>;
+
+<span class="attr">#[cfg(target_pointer_width = <span class="string">&quot;64&quot;</span>)]
+</span><span class="kw">const </span>PTR_WIDTH: usize = <span class="number">64</span>;
+<span class="attr">#[cfg(target_pointer_width = <span class="string">&quot;32&quot;</span>)]
+</span><span class="kw">const </span>PTR_WIDTH: usize = <span class="number">32</span>;
+
+<span class="comment">/*
+ *
+ * ===== BytesMut =====
+ *
+ */
+
+</span><span class="kw">impl </span>BytesMut {
+ <span class="doccomment">/// Creates a new `BytesMut` with the specified capacity.
+ ///
+ /// The returned `BytesMut` will be able to hold at least `capacity` bytes
+ /// without reallocating.
+ ///
+ /// It is important to note that this function does not specify the length
+ /// of the returned `BytesMut`, but only the capacity.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{BytesMut, BufMut};
+ ///
+ /// let mut bytes = BytesMut::with_capacity(64);
+ ///
+ /// // `bytes` contains no data, even though there is capacity
+ /// assert_eq!(bytes.len(), 0);
+ ///
+ /// bytes.put(&amp;b&quot;hello world&quot;[..]);
+ ///
+ /// assert_eq!(&amp;bytes[..], b&quot;hello world&quot;);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>with_capacity(capacity: usize) -&gt; BytesMut {
+ BytesMut::from_vec(Vec::with_capacity(capacity))
+ }
+
+ <span class="doccomment">/// Creates a new `BytesMut` with default capacity.
+ ///
+ /// Resulting object has length 0 and unspecified capacity.
+ /// This function does not allocate.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{BytesMut, BufMut};
+ ///
+ /// let mut bytes = BytesMut::new();
+ ///
+ /// assert_eq!(0, bytes.len());
+ ///
+ /// bytes.reserve(2);
+ /// bytes.put_slice(b&quot;xy&quot;);
+ ///
+ /// assert_eq!(&amp;b&quot;xy&quot;[..], &amp;bytes[..]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>new() -&gt; BytesMut {
+ BytesMut::with_capacity(<span class="number">0</span>)
+ }
+
+ <span class="doccomment">/// Returns the number of bytes contained in this `BytesMut`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let b = BytesMut::from(&amp;b&quot;hello&quot;[..]);
+ /// assert_eq!(b.len(), 5);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>len(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len
+ }
+
+ <span class="doccomment">/// Returns true if the `BytesMut` has a length of 0.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let b = BytesMut::with_capacity(64);
+ /// assert!(b.is_empty());
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>is_empty(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ <span class="self">self</span>.len == <span class="number">0
+ </span>}
+
+ <span class="doccomment">/// Returns the number of bytes the `BytesMut` can hold without reallocating.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let b = BytesMut::with_capacity(64);
+ /// assert_eq!(b.capacity(), 64);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>capacity(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.cap
+ }
+
+ <span class="doccomment">/// Converts `self` into an immutable `Bytes`.
+ ///
+ /// The conversion is zero cost and is used to indicate that the slice
+ /// referenced by the handle will no longer be mutated. Once the conversion
+ /// is done, the handle can be cloned and shared across threads.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{BytesMut, BufMut};
+ /// use std::thread;
+ ///
+ /// let mut b = BytesMut::with_capacity(64);
+ /// b.put(&amp;b&quot;hello world&quot;[..]);
+ /// let b1 = b.freeze();
+ /// let b2 = b1.clone();
+ ///
+ /// let th = thread::spawn(move || {
+ /// assert_eq!(&amp;b1[..], b&quot;hello world&quot;);
+ /// });
+ ///
+ /// assert_eq!(&amp;b2[..], b&quot;hello world&quot;);
+ /// th.join().unwrap();
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>freeze(<span class="self">self</span>) -&gt; Bytes {
+ <span class="kw">let </span>bytes = ManuallyDrop::new(<span class="self">self</span>);
+ <span class="kw">if </span>bytes.kind() == KIND_VEC {
+ <span class="comment">// Just re-use `Bytes` internal Vec vtable
+ </span><span class="kw">unsafe </span>{
+ <span class="kw">let </span>off = bytes.get_vec_pos();
+ <span class="kw">let </span>vec = rebuild_vec(bytes.ptr.as_ptr(), bytes.len, bytes.cap, off);
+ <span class="kw">let </span><span class="kw-2">mut </span>b: Bytes = vec.into();
+ b.advance(off);
+ b
+ }
+ } <span class="kw">else </span>{
+ <span class="macro">debug_assert_eq!</span>(bytes.kind(), KIND_ARC);
+
+ <span class="kw">let </span>ptr = bytes.ptr.as_ptr();
+ <span class="kw">let </span>len = bytes.len;
+ <span class="kw">let </span>data = AtomicPtr::new(bytes.data.cast());
+ <span class="kw">unsafe </span>{ Bytes::with_vtable(ptr, len, data, <span class="kw-2">&amp;</span>SHARED_VTABLE) }
+ }
+ }
+
+ <span class="doccomment">/// Creates a new `BytesMut`, which is initialized with zero.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let zeros = BytesMut::zeroed(42);
+ ///
+ /// assert_eq!(zeros.len(), 42);
+ /// zeros.into_iter().for_each(|x| assert_eq!(x, 0));
+ /// ```
+ </span><span class="kw">pub fn </span>zeroed(len: usize) -&gt; BytesMut {
+ BytesMut::from_vec(<span class="macro">vec!</span>[<span class="number">0</span>; len])
+ }
+
+ <span class="doccomment">/// Splits the bytes into two at the given index.
+ ///
+ /// Afterwards `self` contains elements `[0, at)`, and the returned
+ /// `BytesMut` contains elements `[at, capacity)`.
+ ///
+ /// This is an `O(1)` operation that just increases the reference count
+ /// and sets a few indices.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut a = BytesMut::from(&amp;b&quot;hello world&quot;[..]);
+ /// let mut b = a.split_off(5);
+ ///
+ /// a[0] = b&#39;j&#39;;
+ /// b[0] = b&#39;!&#39;;
+ ///
+ /// assert_eq!(&amp;a[..], b&quot;jello&quot;);
+ /// assert_eq!(&amp;b[..], b&quot;!world&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Panics if `at &gt; capacity`.
+ </span><span class="attr">#[must_use = <span class="string">&quot;consider BytesMut::truncate if you don&#39;t need the other half&quot;</span>]
+ </span><span class="kw">pub fn </span>split_off(<span class="kw-2">&amp;mut </span><span class="self">self</span>, at: usize) -&gt; BytesMut {
+ <span class="macro">assert!</span>(
+ at &lt;= <span class="self">self</span>.capacity(),
+ <span class="string">&quot;split_off out of bounds: {:?} &lt;= {:?}&quot;</span>,
+ at,
+ <span class="self">self</span>.capacity(),
+ );
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span><span class="kw-2">mut </span>other = <span class="self">self</span>.shallow_clone();
+ <span class="comment">// SAFETY: We&#39;ve checked that `at` &lt;= `self.capacity()` above.
+ </span>other.advance_unchecked(at);
+ <span class="self">self</span>.cap = at;
+ <span class="self">self</span>.len = cmp::min(<span class="self">self</span>.len, at);
+ other
+ }
+ }
+
+ <span class="doccomment">/// Removes the bytes from the current view, returning them in a new
+ /// `BytesMut` handle.
+ ///
+ /// Afterwards, `self` will be empty, but will retain any additional
+ /// capacity that it had before the operation. This is identical to
+ /// `self.split_to(self.len())`.
+ ///
+ /// This is an `O(1)` operation that just increases the reference count and
+ /// sets a few indices.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::{BytesMut, BufMut};
+ ///
+ /// let mut buf = BytesMut::with_capacity(1024);
+ /// buf.put(&amp;b&quot;hello world&quot;[..]);
+ ///
+ /// let other = buf.split();
+ ///
+ /// assert!(buf.is_empty());
+ /// assert_eq!(1013, buf.capacity());
+ ///
+ /// assert_eq!(other, b&quot;hello world&quot;[..]);
+ /// ```
+ </span><span class="attr">#[must_use = <span class="string">&quot;consider BytesMut::clear if you don&#39;t need the other half&quot;</span>]
+ </span><span class="kw">pub fn </span>split(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; BytesMut {
+ <span class="kw">let </span>len = <span class="self">self</span>.len();
+ <span class="self">self</span>.split_to(len)
+ }
+
+ <span class="doccomment">/// Splits the buffer into two at the given index.
+ ///
+ /// Afterwards `self` contains elements `[at, len)`, and the returned `BytesMut`
+ /// contains elements `[0, at)`.
+ ///
+ /// This is an `O(1)` operation that just increases the reference count and
+ /// sets a few indices.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut a = BytesMut::from(&amp;b&quot;hello world&quot;[..]);
+ /// let mut b = a.split_to(5);
+ ///
+ /// a[0] = b&#39;!&#39;;
+ /// b[0] = b&#39;j&#39;;
+ ///
+ /// assert_eq!(&amp;a[..], b&quot;!world&quot;);
+ /// assert_eq!(&amp;b[..], b&quot;jello&quot;);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Panics if `at &gt; len`.
+ </span><span class="attr">#[must_use = <span class="string">&quot;consider BytesMut::advance if you don&#39;t need the other half&quot;</span>]
+ </span><span class="kw">pub fn </span>split_to(<span class="kw-2">&amp;mut </span><span class="self">self</span>, at: usize) -&gt; BytesMut {
+ <span class="macro">assert!</span>(
+ at &lt;= <span class="self">self</span>.len(),
+ <span class="string">&quot;split_to out of bounds: {:?} &lt;= {:?}&quot;</span>,
+ at,
+ <span class="self">self</span>.len(),
+ );
+
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span><span class="kw-2">mut </span>other = <span class="self">self</span>.shallow_clone();
+ <span class="comment">// SAFETY: We&#39;ve checked that `at` &lt;= `self.len()` and we know that `self.len()` &lt;=
+ // `self.capacity()`.
+ </span><span class="self">self</span>.advance_unchecked(at);
+ other.cap = at;
+ other.len = at;
+ other
+ }
+ }
+
+ <span class="doccomment">/// Shortens the buffer, keeping the first `len` bytes and dropping the
+ /// rest.
+ ///
+ /// If `len` is greater than the buffer&#39;s current length, this has no
+ /// effect.
+ ///
+ /// Existing underlying capacity is preserved.
+ ///
+ /// The [split_off](`Self::split_off()`) method can emulate `truncate`, but this causes the
+ /// excess bytes to be returned instead of dropped.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut buf = BytesMut::from(&amp;b&quot;hello world&quot;[..]);
+ /// buf.truncate(5);
+ /// assert_eq!(buf, b&quot;hello&quot;[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>truncate(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) {
+ <span class="kw">if </span>len &lt;= <span class="self">self</span>.len() {
+ <span class="comment">// SAFETY: Shrinking the buffer cannot expose uninitialized bytes.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.set_len(len) };
+ }
+ }
+
+ <span class="doccomment">/// Clears the buffer, removing all data. Existing capacity is preserved.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut buf = BytesMut::from(&amp;b&quot;hello world&quot;[..]);
+ /// buf.clear();
+ /// assert!(buf.is_empty());
+ /// ```
+ </span><span class="kw">pub fn </span>clear(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
+ <span class="comment">// SAFETY: Setting the length to zero cannot expose uninitialized bytes.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.set_len(<span class="number">0</span>) };
+ }
+
+ <span class="doccomment">/// Resizes the buffer so that `len` is equal to `new_len`.
+ ///
+ /// If `new_len` is greater than `len`, the buffer is extended by the
+ /// difference with each additional byte set to `value`. If `new_len` is
+ /// less than `len`, the buffer is simply truncated.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut buf = BytesMut::new();
+ ///
+ /// buf.resize(3, 0x1);
+ /// assert_eq!(&amp;buf[..], &amp;[0x1, 0x1, 0x1]);
+ ///
+ /// buf.resize(2, 0x2);
+ /// assert_eq!(&amp;buf[..], &amp;[0x1, 0x1]);
+ ///
+ /// buf.resize(4, 0x3);
+ /// assert_eq!(&amp;buf[..], &amp;[0x1, 0x1, 0x3, 0x3]);
+ /// ```
+ </span><span class="kw">pub fn </span>resize(<span class="kw-2">&amp;mut </span><span class="self">self</span>, new_len: usize, value: u8) {
+ <span class="kw">let </span>additional = <span class="kw">if let </span><span class="prelude-val">Some</span>(additional) = new_len.checked_sub(<span class="self">self</span>.len()) {
+ additional
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.truncate(new_len);
+ <span class="kw">return</span>;
+ };
+
+ <span class="kw">if </span>additional == <span class="number">0 </span>{
+ <span class="kw">return</span>;
+ }
+
+ <span class="self">self</span>.reserve(additional);
+ <span class="kw">let </span>dst = <span class="self">self</span>.spare_capacity_mut().as_mut_ptr();
+ <span class="comment">// SAFETY: `spare_capacity_mut` returns a valid, properly aligned pointer and we&#39;ve
+ // reserved enough space to write `additional` bytes.
+ </span><span class="kw">unsafe </span>{ ptr::write_bytes(dst, value, additional) };
+
+ <span class="comment">// SAFETY: There are at least `new_len` initialized bytes in the buffer so no
+ // uninitialized bytes are being exposed.
+ </span><span class="kw">unsafe </span>{ <span class="self">self</span>.set_len(new_len) };
+ }
+
+ <span class="doccomment">/// Sets the length of the buffer.
+ ///
+ /// This will explicitly set the size of the buffer without actually
+ /// modifying the data, so it is up to the caller to ensure that the data
+ /// has been initialized.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut b = BytesMut::from(&amp;b&quot;hello world&quot;[..]);
+ ///
+ /// unsafe {
+ /// b.set_len(5);
+ /// }
+ ///
+ /// assert_eq!(&amp;b[..], b&quot;hello&quot;);
+ ///
+ /// unsafe {
+ /// b.set_len(11);
+ /// }
+ ///
+ /// assert_eq!(&amp;b[..], b&quot;hello world&quot;);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub unsafe fn </span>set_len(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) {
+ <span class="macro">debug_assert!</span>(len &lt;= <span class="self">self</span>.cap, <span class="string">&quot;set_len out of bounds&quot;</span>);
+ <span class="self">self</span>.len = len;
+ }
+
+ <span class="doccomment">/// Reserves capacity for at least `additional` more bytes to be inserted
+ /// into the given `BytesMut`.
+ ///
+ /// More than `additional` bytes may be reserved in order to avoid frequent
+ /// reallocations. A call to `reserve` may result in an allocation.
+ ///
+ /// Before allocating new buffer space, the function will attempt to reclaim
+ /// space in the existing buffer. If the current handle references a view
+ /// into a larger original buffer, and all other handles referencing part
+ /// of the same original buffer have been dropped, then the current view
+ /// can be copied/shifted to the front of the buffer and the handle can take
+ /// ownership of the full buffer, provided that the full buffer is large
+ /// enough to fit the requested additional capacity.
+ ///
+ /// This optimization will only happen if shifting the data from the current
+ /// view to the front of the buffer is not too expensive in terms of the
+ /// (amortized) time required. The precise condition is subject to change;
+ /// as of now, the length of the data being shifted needs to be at least as
+ /// large as the distance that it&#39;s shifted by. If the current view is empty
+ /// and the original buffer is large enough to fit the requested additional
+ /// capacity, then reallocations will never happen.
+ ///
+ /// # Examples
+ ///
+ /// In the following example, a new buffer is allocated.
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut buf = BytesMut::from(&amp;b&quot;hello&quot;[..]);
+ /// buf.reserve(64);
+ /// assert!(buf.capacity() &gt;= 69);
+ /// ```
+ ///
+ /// In the following example, the existing buffer is reclaimed.
+ ///
+ /// ```
+ /// use bytes::{BytesMut, BufMut};
+ ///
+ /// let mut buf = BytesMut::with_capacity(128);
+ /// buf.put(&amp;[0; 64][..]);
+ ///
+ /// let ptr = buf.as_ptr();
+ /// let other = buf.split();
+ ///
+ /// assert!(buf.is_empty());
+ /// assert_eq!(buf.capacity(), 64);
+ ///
+ /// drop(other);
+ /// buf.reserve(128);
+ ///
+ /// assert_eq!(buf.capacity(), 128);
+ /// assert_eq!(buf.as_ptr(), ptr);
+ /// ```
+ ///
+ /// # Panics
+ ///
+ /// Panics if the new capacity overflows `usize`.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>reserve(<span class="kw-2">&amp;mut </span><span class="self">self</span>, additional: usize) {
+ <span class="kw">let </span>len = <span class="self">self</span>.len();
+ <span class="kw">let </span>rem = <span class="self">self</span>.capacity() - len;
+
+ <span class="kw">if </span>additional &lt;= rem {
+ <span class="comment">// The handle can already store at least `additional` more bytes, so
+ // there is no further work needed to be done.
+ </span><span class="kw">return</span>;
+ }
+
+ <span class="self">self</span>.reserve_inner(additional);
+ }
+
+ <span class="comment">// In separate function to allow the short-circuits in `reserve` to
+ // be inline-able. Significant helps performance.
+ </span><span class="kw">fn </span>reserve_inner(<span class="kw-2">&amp;mut </span><span class="self">self</span>, additional: usize) {
+ <span class="kw">let </span>len = <span class="self">self</span>.len();
+ <span class="kw">let </span>kind = <span class="self">self</span>.kind();
+
+ <span class="kw">if </span>kind == KIND_VEC {
+ <span class="comment">// If there&#39;s enough free space before the start of the buffer, then
+ // just copy the data backwards and reuse the already-allocated
+ // space.
+ //
+ // Otherwise, since backed by a vector, use `Vec::reserve`
+ //
+ // We need to make sure that this optimization does not kill the
+ // amortized runtimes of BytesMut&#39;s operations.
+ </span><span class="kw">unsafe </span>{
+ <span class="kw">let </span>off = <span class="self">self</span>.get_vec_pos();
+
+ <span class="comment">// Only reuse space if we can satisfy the requested additional space.
+ //
+ // Also check if the value of `off` suggests that enough bytes
+ // have been read to account for the overhead of shifting all
+ // the data (in an amortized analysis).
+ // Hence the condition `off &gt;= self.len()`.
+ //
+ // This condition also already implies that the buffer is going
+ // to be (at least) half-empty in the end; so we do not break
+ // the (amortized) runtime with future resizes of the underlying
+ // `Vec`.
+ //
+ // [For more details check issue #524, and PR #525.]
+ </span><span class="kw">if </span><span class="self">self</span>.capacity() - <span class="self">self</span>.len() + off &gt;= additional &amp;&amp; off &gt;= <span class="self">self</span>.len() {
+ <span class="comment">// There&#39;s enough space, and it&#39;s not too much overhead:
+ // reuse the space!
+ //
+ // Just move the pointer back to the start after copying
+ // data back.
+ </span><span class="kw">let </span>base_ptr = <span class="self">self</span>.ptr.as_ptr().sub(off);
+ <span class="comment">// Since `off &gt;= self.len()`, the two regions don&#39;t overlap.
+ </span>ptr::copy_nonoverlapping(<span class="self">self</span>.ptr.as_ptr(), base_ptr, <span class="self">self</span>.len);
+ <span class="self">self</span>.ptr = vptr(base_ptr);
+ <span class="self">self</span>.set_vec_pos(<span class="number">0</span>);
+
+ <span class="comment">// Length stays constant, but since we moved backwards we
+ // can gain capacity back.
+ </span><span class="self">self</span>.cap += off;
+ } <span class="kw">else </span>{
+ <span class="comment">// Not enough space, or reusing might be too much overhead:
+ // allocate more space!
+ </span><span class="kw">let </span><span class="kw-2">mut </span>v =
+ ManuallyDrop::new(rebuild_vec(<span class="self">self</span>.ptr.as_ptr(), <span class="self">self</span>.len, <span class="self">self</span>.cap, off));
+ v.reserve(additional);
+
+ <span class="comment">// Update the info
+ </span><span class="self">self</span>.ptr = vptr(v.as_mut_ptr().add(off));
+ <span class="self">self</span>.cap = v.capacity() - off;
+ <span class="macro">debug_assert_eq!</span>(<span class="self">self</span>.len, v.len() - off);
+ }
+
+ <span class="kw">return</span>;
+ }
+ }
+
+ <span class="macro">debug_assert_eq!</span>(kind, KIND_ARC);
+ <span class="kw">let </span>shared: <span class="kw-2">*mut </span>Shared = <span class="self">self</span>.data;
+
+ <span class="comment">// Reserving involves abandoning the currently shared buffer and
+ // allocating a new vector with the requested capacity.
+ //
+ // Compute the new capacity
+ </span><span class="kw">let </span><span class="kw-2">mut </span>new_cap = len.checked_add(additional).expect(<span class="string">&quot;overflow&quot;</span>);
+
+ <span class="kw">unsafe </span>{
+ <span class="comment">// First, try to reclaim the buffer. This is possible if the current
+ // handle is the only outstanding handle pointing to the buffer.
+ </span><span class="kw">if </span>(<span class="kw-2">*</span>shared).is_unique() {
+ <span class="comment">// This is the only handle to the buffer. It can be reclaimed.
+ // However, before doing the work of copying data, check to make
+ // sure that the vector has enough capacity.
+ </span><span class="kw">let </span>v = <span class="kw-2">&amp;mut </span>(<span class="kw-2">*</span>shared).vec;
+
+ <span class="kw">let </span>v_capacity = v.capacity();
+ <span class="kw">let </span>ptr = v.as_mut_ptr();
+
+ <span class="kw">let </span>offset = offset_from(<span class="self">self</span>.ptr.as_ptr(), ptr);
+
+ <span class="comment">// Compare the condition in the `kind == KIND_VEC` case above
+ // for more details.
+ </span><span class="kw">if </span>v_capacity &gt;= new_cap + offset {
+ <span class="self">self</span>.cap = new_cap;
+ <span class="comment">// no copy is necessary
+ </span>} <span class="kw">else if </span>v_capacity &gt;= new_cap &amp;&amp; offset &gt;= len {
+ <span class="comment">// The capacity is sufficient, and copying is not too much
+ // overhead: reclaim the buffer!
+
+ // `offset &gt;= len` means: no overlap
+ </span>ptr::copy_nonoverlapping(<span class="self">self</span>.ptr.as_ptr(), ptr, len);
+
+ <span class="self">self</span>.ptr = vptr(ptr);
+ <span class="self">self</span>.cap = v.capacity();
+ } <span class="kw">else </span>{
+ <span class="comment">// calculate offset
+ </span><span class="kw">let </span>off = (<span class="self">self</span>.ptr.as_ptr() <span class="kw">as </span>usize) - (v.as_ptr() <span class="kw">as </span>usize);
+
+ <span class="comment">// new_cap is calculated in terms of `BytesMut`, not the underlying
+ // `Vec`, so it does not take the offset into account.
+ //
+ // Thus we have to manually add it here.
+ </span>new_cap = new_cap.checked_add(off).expect(<span class="string">&quot;overflow&quot;</span>);
+
+ <span class="comment">// The vector capacity is not sufficient. The reserve request is
+ // asking for more than the initial buffer capacity. Allocate more
+ // than requested if `new_cap` is not much bigger than the current
+ // capacity.
+ //
+ // There are some situations, using `reserve_exact` that the
+ // buffer capacity could be below `original_capacity`, so do a
+ // check.
+ </span><span class="kw">let </span>double = v.capacity().checked_shl(<span class="number">1</span>).unwrap_or(new_cap);
+
+ new_cap = cmp::max(double, new_cap);
+
+ <span class="comment">// No space - allocate more
+ //
+ // The length field of `Shared::vec` is not used by the `BytesMut`;
+ // instead we use the `len` field in the `BytesMut` itself. However,
+ // when calling `reserve`, it doesn&#39;t guarantee that data stored in
+ // the unused capacity of the vector is copied over to the new
+ // allocation, so we need to ensure that we don&#39;t have any data we
+ // care about in the unused capacity before calling `reserve`.
+ </span><span class="macro">debug_assert!</span>(off + len &lt;= v.capacity());
+ v.set_len(off + len);
+ v.reserve(new_cap - v.len());
+
+ <span class="comment">// Update the info
+ </span><span class="self">self</span>.ptr = vptr(v.as_mut_ptr().add(off));
+ <span class="self">self</span>.cap = v.capacity() - off;
+ }
+
+ <span class="kw">return</span>;
+ }
+ }
+
+ <span class="kw">let </span>original_capacity_repr = <span class="kw">unsafe </span>{ (<span class="kw-2">*</span>shared).original_capacity_repr };
+ <span class="kw">let </span>original_capacity = original_capacity_from_repr(original_capacity_repr);
+
+ new_cap = cmp::max(new_cap, original_capacity);
+
+ <span class="comment">// Create a new vector to store the data
+ </span><span class="kw">let </span><span class="kw-2">mut </span>v = ManuallyDrop::new(Vec::with_capacity(new_cap));
+
+ <span class="comment">// Copy the bytes
+ </span>v.extend_from_slice(<span class="self">self</span>.as_ref());
+
+ <span class="comment">// Release the shared handle. This must be done *after* the bytes are
+ // copied.
+ </span><span class="kw">unsafe </span>{ release_shared(shared) };
+
+ <span class="comment">// Update self
+ </span><span class="kw">let </span>data = (original_capacity_repr &lt;&lt; ORIGINAL_CAPACITY_OFFSET) | KIND_VEC;
+ <span class="self">self</span>.data = invalid_ptr(data);
+ <span class="self">self</span>.ptr = vptr(v.as_mut_ptr());
+ <span class="self">self</span>.cap = v.capacity();
+ <span class="macro">debug_assert_eq!</span>(<span class="self">self</span>.len, v.len());
+ }
+
+ <span class="doccomment">/// Appends given bytes to this `BytesMut`.
+ ///
+ /// If this `BytesMut` object does not have enough capacity, it is resized
+ /// first.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut buf = BytesMut::with_capacity(0);
+ /// buf.extend_from_slice(b&quot;aaabbb&quot;);
+ /// buf.extend_from_slice(b&quot;cccddd&quot;);
+ ///
+ /// assert_eq!(b&quot;aaabbbcccddd&quot;, &amp;buf[..]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>extend_from_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, extend: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="kw">let </span>cnt = extend.len();
+ <span class="self">self</span>.reserve(cnt);
+
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span>dst = <span class="self">self</span>.spare_capacity_mut();
+ <span class="comment">// Reserved above
+ </span><span class="macro">debug_assert!</span>(dst.len() &gt;= cnt);
+
+ ptr::copy_nonoverlapping(extend.as_ptr(), dst.as_mut_ptr().cast(), cnt);
+ }
+
+ <span class="kw">unsafe </span>{
+ <span class="self">self</span>.advance_mut(cnt);
+ }
+ }
+
+ <span class="doccomment">/// Absorbs a `BytesMut` that was previously split off.
+ ///
+ /// If the two `BytesMut` objects were previously contiguous and not mutated
+ /// in a way that causes re-allocation i.e., if `other` was created by
+ /// calling `split_off` on this `BytesMut`, then this is an `O(1)` operation
+ /// that just decreases a reference count and sets a few indices.
+ /// Otherwise this method degenerates to
+ /// `self.extend_from_slice(other.as_ref())`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// let mut buf = BytesMut::with_capacity(64);
+ /// buf.extend_from_slice(b&quot;aaabbbcccddd&quot;);
+ ///
+ /// let split = buf.split_off(6);
+ /// assert_eq!(b&quot;aaabbb&quot;, &amp;buf[..]);
+ /// assert_eq!(b&quot;cccddd&quot;, &amp;split[..]);
+ ///
+ /// buf.unsplit(split);
+ /// assert_eq!(b&quot;aaabbbcccddd&quot;, &amp;buf[..]);
+ /// ```
+ </span><span class="kw">pub fn </span>unsplit(<span class="kw-2">&amp;mut </span><span class="self">self</span>, other: BytesMut) {
+ <span class="kw">if </span><span class="self">self</span>.is_empty() {
+ <span class="kw-2">*</span><span class="self">self </span>= other;
+ <span class="kw">return</span>;
+ }
+
+ <span class="kw">if let </span><span class="prelude-val">Err</span>(other) = <span class="self">self</span>.try_unsplit(other) {
+ <span class="self">self</span>.extend_from_slice(other.as_ref());
+ }
+ }
+
+ <span class="comment">// private
+
+ // For now, use a `Vec` to manage the memory for us, but we may want to
+ // change that in the future to some alternate allocator strategy.
+ //
+ // Thus, we don&#39;t expose an easy way to construct from a `Vec` since an
+ // internal change could make a simple pattern (`BytesMut::from(vec)`)
+ // suddenly a lot more expensive.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>from_vec(vec: Vec&lt;u8&gt;) -&gt; BytesMut {
+ <span class="kw">let </span><span class="kw-2">mut </span>vec = ManuallyDrop::new(vec);
+ <span class="kw">let </span>ptr = vptr(vec.as_mut_ptr());
+ <span class="kw">let </span>len = vec.len();
+ <span class="kw">let </span>cap = vec.capacity();
+
+ <span class="kw">let </span>original_capacity_repr = original_capacity_to_repr(cap);
+ <span class="kw">let </span>data = (original_capacity_repr &lt;&lt; ORIGINAL_CAPACITY_OFFSET) | KIND_VEC;
+
+ BytesMut {
+ ptr,
+ len,
+ cap,
+ data: invalid_ptr(data),
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>as_slice(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">unsafe </span>{ slice::from_raw_parts(<span class="self">self</span>.ptr.as_ptr(), <span class="self">self</span>.len) }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>as_slice_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>[u8] {
+ <span class="kw">unsafe </span>{ slice::from_raw_parts_mut(<span class="self">self</span>.ptr.as_ptr(), <span class="self">self</span>.len) }
+ }
+
+ <span class="doccomment">/// Advance the buffer without bounds checking.
+ ///
+ /// # SAFETY
+ ///
+ /// The caller must ensure that `count` &lt;= `self.cap`.
+ </span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">unsafe fn </span>advance_unchecked(<span class="kw-2">&amp;mut </span><span class="self">self</span>, count: usize) {
+ <span class="comment">// Setting the start to 0 is a no-op, so return early if this is the
+ // case.
+ </span><span class="kw">if </span>count == <span class="number">0 </span>{
+ <span class="kw">return</span>;
+ }
+
+ <span class="macro">debug_assert!</span>(count &lt;= <span class="self">self</span>.cap, <span class="string">&quot;internal: set_start out of bounds&quot;</span>);
+
+ <span class="kw">let </span>kind = <span class="self">self</span>.kind();
+
+ <span class="kw">if </span>kind == KIND_VEC {
+ <span class="comment">// Setting the start when in vec representation is a little more
+ // complicated. First, we have to track how far ahead the
+ // &quot;start&quot; of the byte buffer from the beginning of the vec. We
+ // also have to ensure that we don&#39;t exceed the maximum shift.
+ </span><span class="kw">let </span>pos = <span class="self">self</span>.get_vec_pos() + count;
+
+ <span class="kw">if </span>pos &lt;= MAX_VEC_POS {
+ <span class="self">self</span>.set_vec_pos(pos);
+ } <span class="kw">else </span>{
+ <span class="comment">// The repr must be upgraded to ARC. This will never happen
+ // on 64 bit systems and will only happen on 32 bit systems
+ // when shifting past 134,217,727 bytes. As such, we don&#39;t
+ // worry too much about performance here.
+ </span><span class="self">self</span>.promote_to_shared(<span class="comment">/*ref_count = */ </span><span class="number">1</span>);
+ }
+ }
+
+ <span class="comment">// Updating the start of the view is setting `ptr` to point to the
+ // new start and updating the `len` field to reflect the new length
+ // of the view.
+ </span><span class="self">self</span>.ptr = vptr(<span class="self">self</span>.ptr.as_ptr().add(count));
+ <span class="self">self</span>.len = <span class="self">self</span>.len.checked_sub(count).unwrap_or(<span class="number">0</span>);
+ <span class="self">self</span>.cap -= count;
+ }
+
+ <span class="kw">fn </span>try_unsplit(<span class="kw-2">&amp;mut </span><span class="self">self</span>, other: BytesMut) -&gt; <span class="prelude-ty">Result</span>&lt;(), BytesMut&gt; {
+ <span class="kw">if </span>other.capacity() == <span class="number">0 </span>{
+ <span class="kw">return </span><span class="prelude-val">Ok</span>(());
+ }
+
+ <span class="kw">let </span>ptr = <span class="kw">unsafe </span>{ <span class="self">self</span>.ptr.as_ptr().add(<span class="self">self</span>.len) };
+ <span class="kw">if </span>ptr == other.ptr.as_ptr()
+ &amp;&amp; <span class="self">self</span>.kind() == KIND_ARC
+ &amp;&amp; other.kind() == KIND_ARC
+ &amp;&amp; <span class="self">self</span>.data == other.data
+ {
+ <span class="comment">// Contiguous blocks, just combine directly
+ </span><span class="self">self</span>.len += other.len;
+ <span class="self">self</span>.cap += other.cap;
+ <span class="prelude-val">Ok</span>(())
+ } <span class="kw">else </span>{
+ <span class="prelude-val">Err</span>(other)
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>kind(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.data <span class="kw">as </span>usize &amp; KIND_MASK
+ }
+
+ <span class="kw">unsafe fn </span>promote_to_shared(<span class="kw-2">&amp;mut </span><span class="self">self</span>, ref_cnt: usize) {
+ <span class="macro">debug_assert_eq!</span>(<span class="self">self</span>.kind(), KIND_VEC);
+ <span class="macro">debug_assert!</span>(ref_cnt == <span class="number">1 </span>|| ref_cnt == <span class="number">2</span>);
+
+ <span class="kw">let </span>original_capacity_repr =
+ (<span class="self">self</span>.data <span class="kw">as </span>usize &amp; ORIGINAL_CAPACITY_MASK) &gt;&gt; ORIGINAL_CAPACITY_OFFSET;
+
+ <span class="comment">// The vec offset cannot be concurrently mutated, so there
+ // should be no danger reading it.
+ </span><span class="kw">let </span>off = (<span class="self">self</span>.data <span class="kw">as </span>usize) &gt;&gt; VEC_POS_OFFSET;
+
+ <span class="comment">// First, allocate a new `Shared` instance containing the
+ // `Vec` fields. It&#39;s important to note that `ptr`, `len`,
+ // and `cap` cannot be mutated without having `&amp;mut self`.
+ // This means that these fields will not be concurrently
+ // updated and since the buffer hasn&#39;t been promoted to an
+ // `Arc`, those three fields still are the components of the
+ // vector.
+ </span><span class="kw">let </span>shared = Box::new(Shared {
+ vec: rebuild_vec(<span class="self">self</span>.ptr.as_ptr(), <span class="self">self</span>.len, <span class="self">self</span>.cap, off),
+ original_capacity_repr,
+ ref_count: AtomicUsize::new(ref_cnt),
+ });
+
+ <span class="kw">let </span>shared = Box::into_raw(shared);
+
+ <span class="comment">// The pointer should be aligned, so this assert should
+ // always succeed.
+ </span><span class="macro">debug_assert_eq!</span>(shared <span class="kw">as </span>usize &amp; KIND_MASK, KIND_ARC);
+
+ <span class="self">self</span>.data = shared;
+ }
+
+ <span class="doccomment">/// Makes an exact shallow clone of `self`.
+ ///
+ /// The kind of `self` doesn&#39;t matter, but this is unsafe
+ /// because the clone will have the same offsets. You must
+ /// be sure the returned value to the user doesn&#39;t allow
+ /// two views into the same range.
+ </span><span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>shallow_clone(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; BytesMut {
+ <span class="kw">if </span><span class="self">self</span>.kind() == KIND_ARC {
+ increment_shared(<span class="self">self</span>.data);
+ ptr::read(<span class="self">self</span>)
+ } <span class="kw">else </span>{
+ <span class="self">self</span>.promote_to_shared(<span class="comment">/*ref_count = */ </span><span class="number">2</span>);
+ ptr::read(<span class="self">self</span>)
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>get_vec_pos(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="macro">debug_assert_eq!</span>(<span class="self">self</span>.kind(), KIND_VEC);
+
+ <span class="self">self</span>.data <span class="kw">as </span>usize &gt;&gt; VEC_POS_OFFSET
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>set_vec_pos(<span class="kw-2">&amp;mut </span><span class="self">self</span>, pos: usize) {
+ <span class="macro">debug_assert_eq!</span>(<span class="self">self</span>.kind(), KIND_VEC);
+ <span class="macro">debug_assert!</span>(pos &lt;= MAX_VEC_POS);
+
+ <span class="self">self</span>.data = invalid_ptr((pos &lt;&lt; VEC_POS_OFFSET) | (<span class="self">self</span>.data <span class="kw">as </span>usize &amp; NOT_VEC_POS_MASK));
+ }
+
+ <span class="doccomment">/// Returns the remaining spare capacity of the buffer as a slice of `MaybeUninit&lt;u8&gt;`.
+ ///
+ /// The returned slice can be used to fill the buffer with data (e.g. by
+ /// reading from a file) before marking the data as initialized using the
+ /// [`set_len`] method.
+ ///
+ /// [`set_len`]: BytesMut::set_len
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use bytes::BytesMut;
+ ///
+ /// // Allocate buffer big enough for 10 bytes.
+ /// let mut buf = BytesMut::with_capacity(10);
+ ///
+ /// // Fill in the first 3 elements.
+ /// let uninit = buf.spare_capacity_mut();
+ /// uninit[0].write(0);
+ /// uninit[1].write(1);
+ /// uninit[2].write(2);
+ ///
+ /// // Mark the first 3 bytes of the buffer as being initialized.
+ /// unsafe {
+ /// buf.set_len(3);
+ /// }
+ ///
+ /// assert_eq!(&amp;buf[..], &amp;[0, 1, 2]);
+ /// ```
+ </span><span class="attr">#[inline]
+ </span><span class="kw">pub fn </span>spare_capacity_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>[MaybeUninit&lt;u8&gt;] {
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span>ptr = <span class="self">self</span>.ptr.as_ptr().add(<span class="self">self</span>.len);
+ <span class="kw">let </span>len = <span class="self">self</span>.cap - <span class="self">self</span>.len;
+
+ slice::from_raw_parts_mut(ptr.cast(), len)
+ }
+ }
+}
+
+<span class="kw">impl </span>Drop <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>drop(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
+ <span class="kw">let </span>kind = <span class="self">self</span>.kind();
+
+ <span class="kw">if </span>kind == KIND_VEC {
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span>off = <span class="self">self</span>.get_vec_pos();
+
+ <span class="comment">// Vector storage, free the vector
+ </span><span class="kw">let _ </span>= rebuild_vec(<span class="self">self</span>.ptr.as_ptr(), <span class="self">self</span>.len, <span class="self">self</span>.cap, off);
+ }
+ } <span class="kw">else if </span>kind == KIND_ARC {
+ <span class="kw">unsafe </span>{ release_shared(<span class="self">self</span>.data) };
+ }
+ }
+}
+
+<span class="kw">impl </span>Buf <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self</span>.as_slice()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>advance(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="comment">// Advancing by the length is the same as resetting the length to 0,
+ // except this way we get to reuse the full capacity.
+ </span><span class="kw">if </span>cnt == <span class="self">self</span>.remaining() {
+ <span class="self">self</span>.clear();
+ <span class="kw">return</span>;
+ }
+
+ <span class="macro">assert!</span>(
+ cnt &lt;= <span class="self">self</span>.remaining(),
+ <span class="string">&quot;cannot advance past `remaining`: {:?} &lt;= {:?}&quot;</span>,
+ cnt,
+ <span class="self">self</span>.remaining(),
+ );
+ <span class="kw">unsafe </span>{
+ <span class="comment">// SAFETY: We&#39;ve checked that `cnt` &lt;= `self.remaining()` and we know that
+ // `self.remaining()` &lt;= `self.cap`.
+ </span><span class="self">self</span>.advance_unchecked(cnt);
+ }
+ }
+
+ <span class="kw">fn </span>copy_to_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, len: usize) -&gt; Bytes {
+ <span class="self">self</span>.split_to(len).freeze()
+ }
+}
+
+<span class="kw">unsafe impl </span>BufMut <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>remaining_mut(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; usize {
+ usize::MAX - <span class="self">self</span>.len()
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">unsafe fn </span>advance_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>, cnt: usize) {
+ <span class="kw">let </span>remaining = <span class="self">self</span>.cap - <span class="self">self</span>.len();
+ <span class="kw">if </span>cnt &gt; remaining {
+ <span class="kw">super</span>::panic_advance(cnt, remaining);
+ }
+ <span class="comment">// Addition won&#39;t overflow since it is at most `self.cap`.
+ </span><span class="self">self</span>.len = <span class="self">self</span>.len() + cnt;
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>chunk_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>UninitSlice {
+ <span class="kw">if </span><span class="self">self</span>.capacity() == <span class="self">self</span>.len() {
+ <span class="self">self</span>.reserve(<span class="number">64</span>);
+ }
+ <span class="self">self</span>.spare_capacity_mut().into()
+ }
+
+ <span class="comment">// Specialize these methods so they can skip checking `remaining_mut`
+ // and `advance_mut`.
+
+ </span><span class="kw">fn </span>put&lt;T: Buf&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, <span class="kw-2">mut </span>src: T)
+ <span class="kw">where
+ </span><span class="self">Self</span>: Sized,
+ {
+ <span class="kw">while </span>src.has_remaining() {
+ <span class="kw">let </span>s = src.chunk();
+ <span class="kw">let </span>l = s.len();
+ <span class="self">self</span>.extend_from_slice(s);
+ src.advance(l);
+ }
+ }
+
+ <span class="kw">fn </span>put_slice(<span class="kw-2">&amp;mut </span><span class="self">self</span>, src: <span class="kw-2">&amp;</span>[u8]) {
+ <span class="self">self</span>.extend_from_slice(src);
+ }
+
+ <span class="kw">fn </span>put_bytes(<span class="kw-2">&amp;mut </span><span class="self">self</span>, val: u8, cnt: usize) {
+ <span class="self">self</span>.reserve(cnt);
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span>dst = <span class="self">self</span>.spare_capacity_mut();
+ <span class="comment">// Reserved above
+ </span><span class="macro">debug_assert!</span>(dst.len() &gt;= cnt);
+
+ ptr::write_bytes(dst.as_mut_ptr(), val, cnt);
+
+ <span class="self">self</span>.advance_mut(cnt);
+ }
+ }
+}
+
+<span class="kw">impl </span>AsRef&lt;[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>as_ref(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self</span>.as_slice()
+ }
+}
+
+<span class="kw">impl </span>Deref <span class="kw">for </span>BytesMut {
+ <span class="kw">type </span>Target = [u8];
+
+ <span class="attr">#[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>[u8] {
+ <span class="self">self</span>.as_ref()
+ }
+}
+
+<span class="kw">impl </span>AsMut&lt;[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>as_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>[u8] {
+ <span class="self">self</span>.as_slice_mut()
+ }
+}
+
+<span class="kw">impl </span>DerefMut <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>deref_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>[u8] {
+ <span class="self">self</span>.as_mut()
+ }
+}
+
+<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>[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>from(src: <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>[u8]) -&gt; BytesMut {
+ BytesMut::from_vec(src.to_vec())
+ }
+}
+
+<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>BytesMut {
+ <span class="kw">fn </span>from(src: <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>str) -&gt; BytesMut {
+ BytesMut::from(src.as_bytes())
+ }
+}
+
+<span class="kw">impl </span>From&lt;BytesMut&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>from(src: BytesMut) -&gt; Bytes {
+ src.freeze()
+ }
+}
+
+<span class="kw">impl </span>PartialEq <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="self">self</span>.as_slice() == other.as_slice()
+ }
+}
+
+<span class="kw">impl </span>PartialOrd <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.as_slice().partial_cmp(other.as_slice())
+ }
+}
+
+<span class="kw">impl </span>Ord <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; cmp::Ordering {
+ <span class="self">self</span>.as_slice().cmp(other.as_slice())
+ }
+}
+
+<span class="kw">impl </span>Eq <span class="kw">for </span>BytesMut {}
+
+<span class="kw">impl </span>Default <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>default() -&gt; BytesMut {
+ BytesMut::new()
+ }
+}
+
+<span class="kw">impl </span>hash::Hash <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>hash&lt;H&gt;(<span class="kw-2">&amp;</span><span class="self">self</span>, state: <span class="kw-2">&amp;mut </span>H)
+ <span class="kw">where
+ </span>H: hash::Hasher,
+ {
+ <span class="kw">let </span>s: <span class="kw-2">&amp;</span>[u8] = <span class="self">self</span>.as_ref();
+ s.hash(state);
+ }
+}
+
+<span class="kw">impl </span>Borrow&lt;[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>borrow(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;</span>[u8] {
+ <span class="self">self</span>.as_ref()
+ }
+}
+
+<span class="kw">impl </span>BorrowMut&lt;[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>borrow_mut(<span class="kw-2">&amp;mut </span><span class="self">self</span>) -&gt; <span class="kw-2">&amp;mut </span>[u8] {
+ <span class="self">self</span>.as_mut()
+ }
+}
+
+<span class="kw">impl </span>fmt::Write <span class="kw">for </span>BytesMut {
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>write_str(<span class="kw-2">&amp;mut </span><span class="self">self</span>, s: <span class="kw-2">&amp;</span>str) -&gt; fmt::Result {
+ <span class="kw">if </span><span class="self">self</span>.remaining_mut() &gt;= s.len() {
+ <span class="self">self</span>.put_slice(s.as_bytes());
+ <span class="prelude-val">Ok</span>(())
+ } <span class="kw">else </span>{
+ <span class="prelude-val">Err</span>(fmt::Error)
+ }
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>write_fmt(<span class="kw-2">&amp;mut </span><span class="self">self</span>, args: fmt::Arguments&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
+ fmt::write(<span class="self">self</span>, args)
+ }
+}
+
+<span class="kw">impl </span>Clone <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>clone(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; BytesMut {
+ BytesMut::from(<span class="kw-2">&amp;</span><span class="self">self</span>[..])
+ }
+}
+
+<span class="kw">impl </span>IntoIterator <span class="kw">for </span>BytesMut {
+ <span class="kw">type </span>Item = u8;
+ <span class="kw">type </span>IntoIter = IntoIter&lt;BytesMut&gt;;
+
+ <span class="kw">fn </span>into_iter(<span class="self">self</span>) -&gt; <span class="self">Self</span>::IntoIter {
+ IntoIter::new(<span class="self">self</span>)
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>&gt; IntoIterator <span class="kw">for </span><span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>BytesMut {
+ <span class="kw">type </span>Item = <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>u8;
+ <span class="kw">type </span>IntoIter = core::slice::Iter&lt;<span class="lifetime">&#39;a</span>, u8&gt;;
+
+ <span class="kw">fn </span>into_iter(<span class="self">self</span>) -&gt; <span class="self">Self</span>::IntoIter {
+ <span class="self">self</span>.as_ref().iter()
+ }
+}
+
+<span class="kw">impl </span>Extend&lt;u8&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>extend&lt;T&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, iter: T)
+ <span class="kw">where
+ </span>T: IntoIterator&lt;Item = u8&gt;,
+ {
+ <span class="kw">let </span>iter = iter.into_iter();
+
+ <span class="kw">let </span>(lower, <span class="kw">_</span>) = iter.size_hint();
+ <span class="self">self</span>.reserve(lower);
+
+ <span class="comment">// TODO: optimize
+ // 1. If self.kind() == KIND_VEC, use Vec::extend
+ </span><span class="kw">for </span>b <span class="kw">in </span>iter {
+ <span class="self">self</span>.put_u8(b);
+ }
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>&gt; Extend&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>u8&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>extend&lt;T&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, iter: T)
+ <span class="kw">where
+ </span>T: IntoIterator&lt;Item = <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>u8&gt;,
+ {
+ <span class="self">self</span>.extend(iter.into_iter().copied())
+ }
+}
+
+<span class="kw">impl </span>Extend&lt;Bytes&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>extend&lt;T&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, iter: T)
+ <span class="kw">where
+ </span>T: IntoIterator&lt;Item = Bytes&gt;,
+ {
+ <span class="kw">for </span>bytes <span class="kw">in </span>iter {
+ <span class="self">self</span>.extend_from_slice(<span class="kw-2">&amp;</span>bytes)
+ }
+ }
+}
+
+<span class="kw">impl </span>FromIterator&lt;u8&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>from_iter&lt;T: IntoIterator&lt;Item = u8&gt;&gt;(into_iter: T) -&gt; <span class="self">Self </span>{
+ BytesMut::from_vec(Vec::from_iter(into_iter))
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>&gt; FromIterator&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>u8&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>from_iter&lt;T: IntoIterator&lt;Item = <span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>u8&gt;&gt;(into_iter: T) -&gt; <span class="self">Self </span>{
+ BytesMut::from_iter(into_iter.into_iter().copied())
+ }
+}
+
+<span class="comment">/*
+ *
+ * ===== Inner =====
+ *
+ */
+
+</span><span class="kw">unsafe fn </span>increment_shared(ptr: <span class="kw-2">*mut </span>Shared) {
+ <span class="kw">let </span>old_size = (<span class="kw-2">*</span>ptr).ref_count.fetch_add(<span class="number">1</span>, Ordering::Relaxed);
+
+ <span class="kw">if </span>old_size &gt; isize::MAX <span class="kw">as </span>usize {
+ <span class="kw">crate</span>::abort();
+ }
+}
+
+<span class="kw">unsafe fn </span>release_shared(ptr: <span class="kw-2">*mut </span>Shared) {
+ <span class="comment">// `Shared` storage... follow the drop steps from Arc.
+ </span><span class="kw">if </span>(<span class="kw-2">*</span>ptr).ref_count.fetch_sub(<span class="number">1</span>, Ordering::Release) != <span class="number">1 </span>{
+ <span class="kw">return</span>;
+ }
+
+ <span class="comment">// This fence is needed to prevent reordering of use of the data and
+ // deletion of the data. Because it is marked `Release`, the decreasing
+ // of the reference count synchronizes with this `Acquire` fence. This
+ // means that use of the data happens before decreasing the reference
+ // count, which happens before this fence, which happens before the
+ // deletion of the data.
+ //
+ // As explained in the [Boost documentation][1],
+ //
+ // &gt; It is important to enforce any possible access to the object in one
+ // &gt; thread (through an existing reference) to *happen before* deleting
+ // &gt; the object in a different thread. This is achieved by a &quot;release&quot;
+ // &gt; operation after dropping a reference (any access to the object
+ // &gt; through this reference must obviously happened before), and an
+ // &gt; &quot;acquire&quot; operation before deleting the object.
+ //
+ // [1]: (www.boost.org/doc/libs/1_55_0/doc/html/atomic/usage_examples.html)
+ //
+ // Thread sanitizer does not support atomic fences. Use an atomic load
+ // instead.
+ </span>(<span class="kw-2">*</span>ptr).ref_count.load(Ordering::Acquire);
+
+ <span class="comment">// Drop the data
+ </span>drop(Box::from_raw(ptr));
+}
+
+<span class="kw">impl </span>Shared {
+ <span class="kw">fn </span>is_unique(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; bool {
+ <span class="comment">// The goal is to check if the current handle is the only handle
+ // that currently has access to the buffer. This is done by
+ // checking if the `ref_count` is currently 1.
+ //
+ // The `Acquire` ordering synchronizes with the `Release` as
+ // part of the `fetch_sub` in `release_shared`. The `fetch_sub`
+ // operation guarantees that any mutations done in other threads
+ // are ordered before the `ref_count` is decremented. As such,
+ // this `Acquire` will guarantee that those mutations are
+ // visible to the current thread.
+ </span><span class="self">self</span>.ref_count.load(Ordering::Acquire) == <span class="number">1
+ </span>}
+}
+
+<span class="attr">#[inline]
+</span><span class="kw">fn </span>original_capacity_to_repr(cap: usize) -&gt; usize {
+ <span class="kw">let </span>width = PTR_WIDTH - ((cap &gt;&gt; MIN_ORIGINAL_CAPACITY_WIDTH).leading_zeros() <span class="kw">as </span>usize);
+ cmp::min(
+ width,
+ MAX_ORIGINAL_CAPACITY_WIDTH - MIN_ORIGINAL_CAPACITY_WIDTH,
+ )
+}
+
+<span class="kw">fn </span>original_capacity_from_repr(repr: usize) -&gt; usize {
+ <span class="kw">if </span>repr == <span class="number">0 </span>{
+ <span class="kw">return </span><span class="number">0</span>;
+ }
+
+ <span class="number">1 </span>&lt;&lt; (repr + (MIN_ORIGINAL_CAPACITY_WIDTH - <span class="number">1</span>))
+}
+
+<span class="attr">#[cfg(test)]
+</span><span class="kw">mod </span>tests {
+ <span class="kw">use super</span>::<span class="kw-2">*</span>;
+
+ <span class="attr">#[test]
+ </span><span class="kw">fn </span>test_original_capacity_to_repr() {
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(<span class="number">0</span>), <span class="number">0</span>);
+
+ <span class="kw">let </span>max_width = <span class="number">32</span>;
+
+ <span class="kw">for </span>width <span class="kw">in </span><span class="number">1</span>..(max_width + <span class="number">1</span>) {
+ <span class="kw">let </span>cap = <span class="number">1 </span>&lt;&lt; width - <span class="number">1</span>;
+
+ <span class="kw">let </span>expected = <span class="kw">if </span>width &lt; MIN_ORIGINAL_CAPACITY_WIDTH {
+ <span class="number">0
+ </span>} <span class="kw">else if </span>width &lt; MAX_ORIGINAL_CAPACITY_WIDTH {
+ width - MIN_ORIGINAL_CAPACITY_WIDTH
+ } <span class="kw">else </span>{
+ MAX_ORIGINAL_CAPACITY_WIDTH - MIN_ORIGINAL_CAPACITY_WIDTH
+ };
+
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(cap), expected);
+
+ <span class="kw">if </span>width &gt; <span class="number">1 </span>{
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(cap + <span class="number">1</span>), expected);
+ }
+
+ <span class="comment">// MIN_ORIGINAL_CAPACITY_WIDTH must be bigger than 7 to pass tests below
+ </span><span class="kw">if </span>width == MIN_ORIGINAL_CAPACITY_WIDTH + <span class="number">1 </span>{
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(cap - <span class="number">24</span>), expected - <span class="number">1</span>);
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(cap + <span class="number">76</span>), expected);
+ } <span class="kw">else if </span>width == MIN_ORIGINAL_CAPACITY_WIDTH + <span class="number">2 </span>{
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(cap - <span class="number">1</span>), expected - <span class="number">1</span>);
+ <span class="macro">assert_eq!</span>(original_capacity_to_repr(cap - <span class="number">48</span>), expected - <span class="number">1</span>);
+ }
+ }
+ }
+
+ <span class="attr">#[test]
+ </span><span class="kw">fn </span>test_original_capacity_from_repr() {
+ <span class="macro">assert_eq!</span>(<span class="number">0</span>, original_capacity_from_repr(<span class="number">0</span>));
+
+ <span class="kw">let </span>min_cap = <span class="number">1 </span>&lt;&lt; MIN_ORIGINAL_CAPACITY_WIDTH;
+
+ <span class="macro">assert_eq!</span>(min_cap, original_capacity_from_repr(<span class="number">1</span>));
+ <span class="macro">assert_eq!</span>(min_cap * <span class="number">2</span>, original_capacity_from_repr(<span class="number">2</span>));
+ <span class="macro">assert_eq!</span>(min_cap * <span class="number">4</span>, original_capacity_from_repr(<span class="number">3</span>));
+ <span class="macro">assert_eq!</span>(min_cap * <span class="number">8</span>, original_capacity_from_repr(<span class="number">4</span>));
+ <span class="macro">assert_eq!</span>(min_cap * <span class="number">16</span>, original_capacity_from_repr(<span class="number">5</span>));
+ <span class="macro">assert_eq!</span>(min_cap * <span class="number">32</span>, original_capacity_from_repr(<span class="number">6</span>));
+ <span class="macro">assert_eq!</span>(min_cap * <span class="number">64</span>, original_capacity_from_repr(<span class="number">7</span>));
+ }
+}
+
+<span class="kw">unsafe impl </span>Send <span class="kw">for </span>BytesMut {}
+<span class="kw">unsafe impl </span>Sync <span class="kw">for </span>BytesMut {}
+
+<span class="comment">/*
+ *
+ * ===== PartialEq / PartialOrd =====
+ *
+ */
+
+</span><span class="kw">impl </span>PartialEq&lt;[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>[u8]) -&gt; bool {
+ <span class="kw-2">&amp;**</span><span class="self">self </span>== other
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;[u8]&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ (<span class="kw-2">**</span><span class="self">self</span>).partial_cmp(other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span>[u8] {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;BytesMut&gt; <span class="kw">for </span>[u8] {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>, other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;str&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>str) -&gt; bool {
+ <span class="kw-2">&amp;**</span><span class="self">self </span>== other.as_bytes()
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;str&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ (<span class="kw-2">**</span><span class="self">self</span>).partial_cmp(other.as_bytes())
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span>str {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;BytesMut&gt; <span class="kw">for </span>str {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>.as_bytes(), other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Vec&lt;u8&gt;&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Vec&lt;u8&gt;) -&gt; bool {
+ <span class="kw-2">*</span><span class="self">self </span>== other[..]
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;Vec&lt;u8&gt;&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Vec&lt;u8&gt;) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ (<span class="kw-2">**</span><span class="self">self</span>).partial_cmp(<span class="kw-2">&amp;</span>other[..])
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;BytesMut&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ other.partial_cmp(<span class="self">self</span>)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;String&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>String) -&gt; bool {
+ <span class="kw-2">*</span><span class="self">self </span>== other[..]
+ }
+}
+
+<span class="kw">impl </span>PartialOrd&lt;String&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>String) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ (<span class="kw-2">**</span><span class="self">self</span>).partial_cmp(other.as_bytes())
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span>String {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;BytesMut&gt; <span class="kw">for </span>String {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>.as_bytes(), other)
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>, T: <span class="question-mark">?</span>Sized&gt; PartialEq&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>T&gt; <span class="kw">for </span>BytesMut
+<span class="kw">where
+ </span>BytesMut: PartialEq&lt;T&gt;,
+{
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: &amp;&amp;<span class="lifetime">&#39;a </span>T) -&gt; bool {
+ <span class="kw-2">*</span><span class="self">self </span>== <span class="kw-2">**</span>other
+ }
+}
+
+<span class="kw">impl</span>&lt;<span class="lifetime">&#39;a</span>, T: <span class="question-mark">?</span>Sized&gt; PartialOrd&lt;<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>T&gt; <span class="kw">for </span>BytesMut
+<span class="kw">where
+ </span>BytesMut: PartialOrd&lt;T&gt;,
+{
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: &amp;&amp;<span class="lifetime">&#39;a </span>T) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ <span class="self">self</span>.partial_cmp(<span class="kw-2">*</span>other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;BytesMut&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>[u8] {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ &lt;[u8] <span class="kw">as </span>PartialOrd&lt;[u8]&gt;&gt;::partial_cmp(<span class="self">self</span>, other)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>str {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ <span class="kw-2">*</span>other == <span class="kw-2">*</span><span class="self">self
+ </span>}
+}
+
+<span class="kw">impl </span>PartialOrd&lt;BytesMut&gt; <span class="kw">for </span><span class="kw-2">&amp;</span>str {
+ <span class="kw">fn </span>partial_cmp(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; <span class="prelude-ty">Option</span>&lt;cmp::Ordering&gt; {
+ other.partial_cmp(<span class="self">self</span>)
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;BytesMut&gt; <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>BytesMut) -&gt; bool {
+ other[..] == <span class="self">self</span>[..]
+ }
+}
+
+<span class="kw">impl </span>PartialEq&lt;Bytes&gt; <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>eq(<span class="kw-2">&amp;</span><span class="self">self</span>, other: <span class="kw-2">&amp;</span>Bytes) -&gt; bool {
+ other[..] == <span class="self">self</span>[..]
+ }
+}
+
+<span class="kw">impl </span>From&lt;BytesMut&gt; <span class="kw">for </span>Vec&lt;u8&gt; {
+ <span class="kw">fn </span>from(bytes: BytesMut) -&gt; <span class="self">Self </span>{
+ <span class="kw">let </span>kind = bytes.kind();
+ <span class="kw">let </span>bytes = ManuallyDrop::new(bytes);
+
+ <span class="kw">let </span><span class="kw-2">mut </span>vec = <span class="kw">if </span>kind == KIND_VEC {
+ <span class="kw">unsafe </span>{
+ <span class="kw">let </span>off = bytes.get_vec_pos();
+ rebuild_vec(bytes.ptr.as_ptr(), bytes.len, bytes.cap, off)
+ }
+ } <span class="kw">else </span>{
+ <span class="kw">let </span>shared = bytes.data <span class="kw">as </span><span class="kw-2">*mut </span>Shared;
+
+ <span class="kw">if unsafe </span>{ (<span class="kw-2">*</span>shared).is_unique() } {
+ <span class="kw">let </span>vec = mem::replace(<span class="kw">unsafe </span>{ <span class="kw-2">&amp;mut </span>(<span class="kw-2">*</span>shared).vec }, Vec::new());
+
+ <span class="kw">unsafe </span>{ release_shared(shared) };
+
+ vec
+ } <span class="kw">else </span>{
+ <span class="kw">return </span>ManuallyDrop::into_inner(bytes).deref().to_vec();
+ }
+ };
+
+ <span class="kw">let </span>len = bytes.len;
+
+ <span class="kw">unsafe </span>{
+ ptr::copy(bytes.ptr.as_ptr(), vec.as_mut_ptr(), len);
+ vec.set_len(len);
+ }
+
+ vec
+ }
+}
+
+<span class="attr">#[inline]
+</span><span class="kw">fn </span>vptr(ptr: <span class="kw-2">*mut </span>u8) -&gt; NonNull&lt;u8&gt; {
+ <span class="kw">if </span><span class="macro">cfg!</span>(debug_assertions) {
+ NonNull::new(ptr).expect(<span class="string">&quot;Vec pointer should be non-null&quot;</span>)
+ } <span class="kw">else </span>{
+ <span class="kw">unsafe </span>{ NonNull::new_unchecked(ptr) }
+ }
+}
+
+<span class="doccomment">/// Returns a dangling pointer with the given address. This is used to store
+/// integer data in pointer fields.
+///
+/// It is equivalent to `addr as *mut T`, but this fails on miri when strict
+/// provenance checking is enabled.
+</span><span class="attr">#[inline]
+</span><span class="kw">fn </span>invalid_ptr&lt;T&gt;(addr: usize) -&gt; <span class="kw-2">*mut </span>T {
+ <span class="kw">let </span>ptr = core::ptr::null_mut::&lt;u8&gt;().wrapping_add(addr);
+ <span class="macro">debug_assert_eq!</span>(ptr <span class="kw">as </span>usize, addr);
+ ptr.cast::&lt;T&gt;()
+}
+
+<span class="kw">unsafe fn </span>rebuild_vec(ptr: <span class="kw-2">*mut </span>u8, <span class="kw-2">mut </span>len: usize, <span class="kw-2">mut </span>cap: usize, off: usize) -&gt; Vec&lt;u8&gt; {
+ <span class="kw">let </span>ptr = ptr.sub(off);
+ len += off;
+ cap += off;
+
+ Vec::from_raw_parts(ptr, len, cap)
+}
+
+<span class="comment">// ===== impl SharedVtable =====
+
+</span><span class="kw">static </span>SHARED_VTABLE: Vtable = Vtable {
+ clone: shared_v_clone,
+ to_vec: shared_v_to_vec,
+ to_mut: shared_v_to_mut,
+ is_unique: <span class="kw">crate</span>::bytes::shared_is_unique,
+ drop: shared_v_drop,
+};
+
+<span class="kw">unsafe fn </span>shared_v_clone(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Bytes {
+ <span class="kw">let </span>shared = data.load(Ordering::Relaxed) <span class="kw">as </span><span class="kw-2">*mut </span>Shared;
+ increment_shared(shared);
+
+ <span class="kw">let </span>data = AtomicPtr::new(shared <span class="kw">as </span><span class="kw-2">*mut </span>());
+ Bytes::with_vtable(ptr, len, data, <span class="kw-2">&amp;</span>SHARED_VTABLE)
+}
+
+<span class="kw">unsafe fn </span>shared_v_to_vec(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; Vec&lt;u8&gt; {
+ <span class="kw">let </span>shared: <span class="kw-2">*mut </span>Shared = data.load(Ordering::Relaxed).cast();
+
+ <span class="kw">if </span>(<span class="kw-2">*</span>shared).is_unique() {
+ <span class="kw">let </span>shared = <span class="kw-2">&amp;mut *</span>shared;
+
+ <span class="comment">// Drop shared
+ </span><span class="kw">let </span><span class="kw-2">mut </span>vec = mem::replace(<span class="kw-2">&amp;mut </span>shared.vec, Vec::new());
+ release_shared(shared);
+
+ <span class="comment">// Copy back buffer
+ </span>ptr::copy(ptr, vec.as_mut_ptr(), len);
+ vec.set_len(len);
+
+ vec
+ } <span class="kw">else </span>{
+ <span class="kw">let </span>v = slice::from_raw_parts(ptr, len).to_vec();
+ release_shared(shared);
+ v
+ }
+}
+
+<span class="kw">unsafe fn </span>shared_v_to_mut(data: <span class="kw-2">&amp;</span>AtomicPtr&lt;()&gt;, ptr: <span class="kw-2">*const </span>u8, len: usize) -&gt; BytesMut {
+ <span class="kw">let </span>shared: <span class="kw-2">*mut </span>Shared = data.load(Ordering::Relaxed).cast();
+
+ <span class="kw">if </span>(<span class="kw-2">*</span>shared).is_unique() {
+ <span class="kw">let </span>shared = <span class="kw-2">&amp;mut *</span>shared;
+
+ <span class="comment">// The capacity is always the original capacity of the buffer
+ // minus the offset from the start of the buffer
+ </span><span class="kw">let </span>v = <span class="kw-2">&amp;mut </span>shared.vec;
+ <span class="kw">let </span>v_capacity = v.capacity();
+ <span class="kw">let </span>v_ptr = v.as_mut_ptr();
+ <span class="kw">let </span>offset = offset_from(ptr <span class="kw">as </span><span class="kw-2">*mut </span>u8, v_ptr);
+ <span class="kw">let </span>cap = v_capacity - offset;
+
+ <span class="kw">let </span>ptr = vptr(ptr <span class="kw">as </span><span class="kw-2">*mut </span>u8);
+
+ BytesMut {
+ ptr,
+ len,
+ cap,
+ data: shared,
+ }
+ } <span class="kw">else </span>{
+ <span class="kw">let </span>v = slice::from_raw_parts(ptr, len).to_vec();
+ release_shared(shared);
+ BytesMut::from_vec(v)
+ }
+}
+
+<span class="kw">unsafe fn </span>shared_v_drop(data: <span class="kw-2">&amp;mut </span>AtomicPtr&lt;()&gt;, _ptr: <span class="kw-2">*const </span>u8, _len: usize) {
+ data.with_mut(|shared| {
+ release_shared(<span class="kw-2">*</span>shared <span class="kw">as </span><span class="kw-2">*mut </span>Shared);
+ });
+}
+
+<span class="comment">// compile-fails
+
+</span><span class="doccomment">/// ```compile_fail
+/// use bytes::BytesMut;
+/// #[deny(unused_must_use)]
+/// {
+/// let mut b1 = BytesMut::from(&quot;hello world&quot;);
+/// b1.split_to(6);
+/// }
+/// ```
+</span><span class="kw">fn </span>_split_to_must_use() {}
+
+<span class="doccomment">/// ```compile_fail
+/// use bytes::BytesMut;
+/// #[deny(unused_must_use)]
+/// {
+/// let mut b1 = BytesMut::from(&quot;hello world&quot;);
+/// b1.split_off(6);
+/// }
+/// ```
+</span><span class="kw">fn </span>_split_off_must_use() {}
+
+<span class="doccomment">/// ```compile_fail
+/// use bytes::BytesMut;
+/// #[deny(unused_must_use)]
+/// {
+/// let mut b1 = BytesMut::from(&quot;hello world&quot;);
+/// b1.split();
+/// }
+/// ```
+</span><span class="kw">fn </span>_split_must_use() {}
+
+<span class="comment">// fuzz tests
+</span><span class="attr">#[cfg(all(test, loom))]
+</span><span class="kw">mod </span>fuzz {
+ <span class="kw">use </span>loom::sync::Arc;
+ <span class="kw">use </span>loom::thread;
+
+ <span class="kw">use </span><span class="kw">super</span>::BytesMut;
+ <span class="kw">use </span><span class="kw">crate</span>::Bytes;
+
+ <span class="attr">#[test]
+ </span><span class="kw">fn </span>bytes_mut_cloning_frozen() {
+ loom::model(|| {
+ <span class="kw">let </span>a = BytesMut::from(<span class="kw-2">&amp;</span><span class="string">b&quot;abcdefgh&quot;</span>[..]).split().freeze();
+ <span class="kw">let </span>addr = a.as_ptr() <span class="kw">as </span>usize;
+
+ <span class="comment">// test the Bytes::clone is Sync by putting it in an Arc
+ </span><span class="kw">let </span>a1 = Arc::new(a);
+ <span class="kw">let </span>a2 = a1.clone();
+
+ <span class="kw">let </span>t1 = thread::spawn(<span class="kw">move </span>|| {
+ <span class="kw">let </span>b: Bytes = (<span class="kw-2">*</span>a1).clone();
+ <span class="macro">assert_eq!</span>(b.as_ptr() <span class="kw">as </span>usize, addr);
+ });
+
+ <span class="kw">let </span>t2 = thread::spawn(<span class="kw">move </span>|| {
+ <span class="kw">let </span>b: Bytes = (<span class="kw-2">*</span>a2).clone();
+ <span class="macro">assert_eq!</span>(b.as_ptr() <span class="kw">as </span>usize, addr);
+ });
+
+ t1.join().unwrap();
+ t2.join().unwrap();
+ });
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/fmt/debug.rs.html b/src/bytes/fmt/debug.rs.html
new file mode 100644
index 0000000..f3aa0df
--- /dev/null
+++ b/src/bytes/fmt/debug.rs.html
@@ -0,0 +1,100 @@
+<!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 `src/fmt/debug.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>debug.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+<span id="23">23</span>
+<span id="24">24</span>
+<span id="25">25</span>
+<span id="26">26</span>
+<span id="27">27</span>
+<span id="28">28</span>
+<span id="29">29</span>
+<span id="30">30</span>
+<span id="31">31</span>
+<span id="32">32</span>
+<span id="33">33</span>
+<span id="34">34</span>
+<span id="35">35</span>
+<span id="36">36</span>
+<span id="37">37</span>
+<span id="38">38</span>
+<span id="39">39</span>
+<span id="40">40</span>
+<span id="41">41</span>
+<span id="42">42</span>
+<span id="43">43</span>
+<span id="44">44</span>
+<span id="45">45</span>
+<span id="46">46</span>
+<span id="47">47</span>
+<span id="48">48</span>
+<span id="49">49</span>
+</pre><pre class="rust"><code><span class="kw">use </span>core::fmt::{Debug, Formatter, <span class="prelude-ty">Result</span>};
+
+<span class="kw">use </span><span class="kw">super</span>::BytesRef;
+<span class="kw">use crate</span>::{Bytes, BytesMut};
+
+<span class="doccomment">/// Alternative implementation of `std::fmt::Debug` for byte slice.
+///
+/// Standard `Debug` implementation for `[u8]` is comma separated
+/// list of numbers. Since large amount of byte strings are in fact
+/// ASCII strings or contain a lot of ASCII strings (e. g. HTTP),
+/// it is convenient to print strings as ASCII when possible.
+</span><span class="kw">impl </span>Debug <span class="kw">for </span>BytesRef&lt;<span class="lifetime">&#39;_</span>&gt; {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; <span class="prelude-ty">Result </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;b\&quot;&quot;</span>)<span class="question-mark">?</span>;
+ <span class="kw">for </span><span class="kw-2">&amp;</span>b <span class="kw">in </span><span class="self">self</span>.<span class="number">0 </span>{
+ <span class="comment">// https://doc.rust-lang.org/reference/tokens.html#byte-escapes
+ </span><span class="kw">if </span>b == <span class="string">b&#39;\n&#39; </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;\\n&quot;</span>)<span class="question-mark">?</span>;
+ } <span class="kw">else if </span>b == <span class="string">b&#39;\r&#39; </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;\\r&quot;</span>)<span class="question-mark">?</span>;
+ } <span class="kw">else if </span>b == <span class="string">b&#39;\t&#39; </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;\\t&quot;</span>)<span class="question-mark">?</span>;
+ } <span class="kw">else if </span>b == <span class="string">b&#39;\\&#39; </span>|| b == <span class="string">b&#39;&quot;&#39; </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;\\{}&quot;</span>, b <span class="kw">as </span>char)<span class="question-mark">?</span>;
+ } <span class="kw">else if </span>b == <span class="string">b&#39;\0&#39; </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;\\0&quot;</span>)<span class="question-mark">?</span>;
+ <span class="comment">// ASCII printable
+ </span>} <span class="kw">else if </span>(<span class="number">0x20</span>..<span class="number">0x7f</span>).contains(<span class="kw-2">&amp;</span>b) {
+ <span class="macro">write!</span>(f, <span class="string">&quot;{}&quot;</span>, b <span class="kw">as </span>char)<span class="question-mark">?</span>;
+ } <span class="kw">else </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;\\x{:02x}&quot;</span>, b)<span class="question-mark">?</span>;
+ }
+ }
+ <span class="macro">write!</span>(f, <span class="string">&quot;\&quot;&quot;</span>)<span class="question-mark">?</span>;
+ <span class="prelude-val">Ok</span>(())
+ }
+}
+
+<span class="kw">impl </span>Debug <span class="kw">for </span>Bytes {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; <span class="prelude-ty">Result </span>{
+ Debug::fmt(<span class="kw-2">&amp;</span>BytesRef(<span class="self">self</span>.as_ref()), f)
+ }
+}
+
+<span class="kw">impl </span>Debug <span class="kw">for </span>BytesMut {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; <span class="prelude-ty">Result </span>{
+ Debug::fmt(<span class="kw-2">&amp;</span>BytesRef(<span class="self">self</span>.as_ref()), f)
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/fmt/hex.rs.html b/src/bytes/fmt/hex.rs.html
new file mode 100644
index 0000000..3554e0e
--- /dev/null
+++ b/src/bytes/fmt/hex.rs.html
@@ -0,0 +1,76 @@
+<!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 `src/fmt/hex.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>hex.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+<span id="23">23</span>
+<span id="24">24</span>
+<span id="25">25</span>
+<span id="26">26</span>
+<span id="27">27</span>
+<span id="28">28</span>
+<span id="29">29</span>
+<span id="30">30</span>
+<span id="31">31</span>
+<span id="32">32</span>
+<span id="33">33</span>
+<span id="34">34</span>
+<span id="35">35</span>
+<span id="36">36</span>
+<span id="37">37</span>
+</pre><pre class="rust"><code><span class="kw">use </span>core::fmt::{Formatter, LowerHex, <span class="prelude-ty">Result</span>, UpperHex};
+
+<span class="kw">use </span><span class="kw">super</span>::BytesRef;
+<span class="kw">use crate</span>::{Bytes, BytesMut};
+
+<span class="kw">impl </span>LowerHex <span class="kw">for </span>BytesRef&lt;<span class="lifetime">&#39;_</span>&gt; {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; <span class="prelude-ty">Result </span>{
+ <span class="kw">for </span><span class="kw-2">&amp;</span>b <span class="kw">in </span><span class="self">self</span>.<span class="number">0 </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;{:02x}&quot;</span>, b)<span class="question-mark">?</span>;
+ }
+ <span class="prelude-val">Ok</span>(())
+ }
+}
+
+<span class="kw">impl </span>UpperHex <span class="kw">for </span>BytesRef&lt;<span class="lifetime">&#39;_</span>&gt; {
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; <span class="prelude-ty">Result </span>{
+ <span class="kw">for </span><span class="kw-2">&amp;</span>b <span class="kw">in </span><span class="self">self</span>.<span class="number">0 </span>{
+ <span class="macro">write!</span>(f, <span class="string">&quot;{:02X}&quot;</span>, b)<span class="question-mark">?</span>;
+ }
+ <span class="prelude-val">Ok</span>(())
+ }
+}
+
+<span class="macro">macro_rules! </span>hex_impl {
+ (<span class="macro-nonterminal">$tr</span>:ident, <span class="macro-nonterminal">$ty</span>:ty) =&gt; {
+ <span class="kw">impl </span><span class="macro-nonterminal">$tr </span><span class="kw">for </span><span class="macro-nonterminal">$ty </span>{
+ <span class="kw">fn </span>fmt(<span class="kw-2">&amp;</span><span class="self">self</span>, f: <span class="kw-2">&amp;mut </span>Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; <span class="prelude-ty">Result </span>{
+ <span class="macro-nonterminal">$tr::fmt</span>(<span class="kw-2">&amp;</span>BytesRef(<span class="self">self</span>.as_ref()), f)
+ }
+ }
+ };
+}
+
+<span class="macro">hex_impl!</span>(LowerHex, Bytes);
+<span class="macro">hex_impl!</span>(LowerHex, BytesMut);
+<span class="macro">hex_impl!</span>(UpperHex, Bytes);
+<span class="macro">hex_impl!</span>(UpperHex, BytesMut);
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/fmt/mod.rs.html b/src/bytes/fmt/mod.rs.html
new file mode 100644
index 0000000..aafa5c7
--- /dev/null
+++ b/src/bytes/fmt/mod.rs.html
@@ -0,0 +1,12 @@
+<!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 `src/fmt/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../bytes/index.html"><img class="rust-logo" src="../../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+</pre><pre class="rust"><code><span class="kw">mod </span>debug;
+<span class="kw">mod </span>hex;
+
+<span class="doccomment">/// `BytesRef` is not a part of public API of bytes crate.
+</span><span class="kw">struct </span>BytesRef&lt;<span class="lifetime">&#39;a</span>&gt;(<span class="kw-2">&amp;</span><span class="lifetime">&#39;a </span>[u8]);
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/lib.rs.html b/src/bytes/lib.rs.html
new file mode 100644
index 0000000..b9bfb3a
--- /dev/null
+++ b/src/bytes/lib.rs.html
@@ -0,0 +1,332 @@
+<!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 `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="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../source-files.js"></script><script defer src="../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../bytes/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
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+<span id="165">165</span>
+</pre><pre class="rust"><code><span class="attr">#![allow(unknown_lints, unexpected_cfgs)]
+#![warn(missing_docs, missing_debug_implementations, rust_2018_idioms)]
+#![doc(test(
+ no_crate_inject,
+ attr(deny(warnings, rust_2018_idioms), allow(dead_code, unused_variables))
+))]
+#![no_std]
+#![cfg_attr(docsrs, feature(doc_cfg))]
+
+</span><span class="doccomment">//! Provides abstractions for working with bytes.
+//!
+//! The `bytes` crate provides an efficient byte buffer structure
+//! ([`Bytes`]) and traits for working with buffer
+//! implementations ([`Buf`], [`BufMut`]).
+//!
+//! # `Bytes`
+//!
+//! `Bytes` is an efficient container for storing and operating on contiguous
+//! slices of memory. It is intended for use primarily in networking code, but
+//! could have applications elsewhere as well.
+//!
+//! `Bytes` values facilitate zero-copy network programming by allowing multiple
+//! `Bytes` objects to point to the same underlying memory. This is managed by
+//! using a reference count to track when the memory is no longer needed and can
+//! be freed.
+//!
+//! A `Bytes` handle can be created directly from an existing byte store (such as `&amp;[u8]`
+//! or `Vec&lt;u8&gt;`), but usually a `BytesMut` is used first and written to. For
+//! example:
+//!
+//! ```rust
+//! use bytes::{BytesMut, BufMut};
+//!
+//! let mut buf = BytesMut::with_capacity(1024);
+//! buf.put(&amp;b&quot;hello world&quot;[..]);
+//! buf.put_u16(1234);
+//!
+//! let a = buf.split();
+//! assert_eq!(a, b&quot;hello world\x04\xD2&quot;[..]);
+//!
+//! buf.put(&amp;b&quot;goodbye world&quot;[..]);
+//!
+//! let b = buf.split();
+//! assert_eq!(b, b&quot;goodbye world&quot;[..]);
+//!
+//! assert_eq!(buf.capacity(), 998);
+//! ```
+//!
+//! In the above example, only a single buffer of 1024 is allocated. The handles
+//! `a` and `b` will share the underlying buffer and maintain indices tracking
+//! the view into the buffer represented by the handle.
+//!
+//! See the [struct docs](`Bytes`) for more details.
+//!
+//! # `Buf`, `BufMut`
+//!
+//! These two traits provide read and write access to buffers. The underlying
+//! storage may or may not be in contiguous memory. For example, `Bytes` is a
+//! buffer that guarantees contiguous memory, but a [rope] stores the bytes in
+//! disjoint chunks. `Buf` and `BufMut` maintain cursors tracking the current
+//! position in the underlying byte storage. When bytes are read or written, the
+//! cursor is advanced.
+//!
+//! [rope]: https://en.wikipedia.org/wiki/Rope_(data_structure)
+//!
+//! ## Relation with `Read` and `Write`
+//!
+//! At first glance, it may seem that `Buf` and `BufMut` overlap in
+//! functionality with [`std::io::Read`] and [`std::io::Write`]. However, they
+//! serve different purposes. A buffer is the value that is provided as an
+//! argument to `Read::read` and `Write::write`. `Read` and `Write` may then
+//! perform a syscall, which has the potential of failing. Operations on `Buf`
+//! and `BufMut` are infallible.
+
+</span><span class="kw">extern crate </span>alloc;
+
+<span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">extern crate </span>std;
+
+<span class="kw">pub mod </span>buf;
+<span class="kw">pub use </span><span class="kw">crate</span>::buf::{Buf, BufMut};
+
+<span class="kw">mod </span>bytes;
+<span class="kw">mod </span>bytes_mut;
+<span class="kw">mod </span>fmt;
+<span class="kw">mod </span>loom;
+<span class="kw">pub use </span><span class="kw">crate</span>::bytes::Bytes;
+<span class="kw">pub use </span><span class="kw">crate</span>::bytes_mut::BytesMut;
+
+<span class="comment">// Optional Serde support
+</span><span class="attr">#[cfg(feature = <span class="string">&quot;serde&quot;</span>)]
+</span><span class="kw">mod </span>serde;
+
+<span class="attr">#[inline(never)]
+#[cold]
+</span><span class="kw">fn </span>abort() -&gt; ! {
+ <span class="attr">#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+ </span>{
+ std::process::abort();
+ }
+
+ <span class="attr">#[cfg(not(feature = <span class="string">&quot;std&quot;</span>))]
+ </span>{
+ <span class="kw">struct </span>Abort;
+ <span class="kw">impl </span>Drop <span class="kw">for </span>Abort {
+ <span class="kw">fn </span>drop(<span class="kw-2">&amp;mut </span><span class="self">self</span>) {
+ <span class="macro">panic!</span>();
+ }
+ }
+ <span class="kw">let </span>_a = Abort;
+ <span class="macro">panic!</span>(<span class="string">&quot;abort&quot;</span>);
+ }
+}
+
+<span class="attr">#[inline(always)]
+#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">fn </span>saturating_sub_usize_u64(a: usize, b: u64) -&gt; usize {
+ <span class="kw">use </span>core::convert::TryFrom;
+ <span class="kw">match </span>usize::try_from(b) {
+ <span class="prelude-val">Ok</span>(b) =&gt; a.saturating_sub(b),
+ <span class="prelude-val">Err</span>(<span class="kw">_</span>) =&gt; <span class="number">0</span>,
+ }
+}
+
+<span class="attr">#[inline(always)]
+#[cfg(feature = <span class="string">&quot;std&quot;</span>)]
+</span><span class="kw">fn </span>min_u64_usize(a: u64, b: usize) -&gt; usize {
+ <span class="kw">use </span>core::convert::TryFrom;
+ <span class="kw">match </span>usize::try_from(a) {
+ <span class="prelude-val">Ok</span>(a) =&gt; usize::min(a, b),
+ <span class="prelude-val">Err</span>(<span class="kw">_</span>) =&gt; b,
+ }
+}
+
+<span class="doccomment">/// Panic with a nice error message.
+</span><span class="attr">#[cold]
+</span><span class="kw">fn </span>panic_advance(idx: usize, len: usize) -&gt; ! {
+ <span class="macro">panic!</span>(
+ <span class="string">&quot;advance out of bounds: the len is {} but advancing by {}&quot;</span>,
+ len, idx
+ );
+}
+
+<span class="attr">#[cold]
+</span><span class="kw">fn </span>panic_does_not_fit(size: usize, nbytes: usize) -&gt; ! {
+ <span class="macro">panic!</span>(
+ <span class="string">&quot;size too large: the integer type can fit {} bytes, but nbytes is {}&quot;</span>,
+ size, nbytes
+ );
+}
+
+<span class="doccomment">/// Precondition: dst &gt;= original
+///
+/// The following line is equivalent to:
+///
+/// ```rust,ignore
+/// self.ptr.as_ptr().offset_from(ptr) as usize;
+/// ```
+///
+/// But due to min rust is 1.39 and it is only stabilized
+/// in 1.47, we cannot use it.
+</span><span class="attr">#[inline]
+</span><span class="kw">fn </span>offset_from(dst: <span class="kw-2">*const </span>u8, original: <span class="kw-2">*const </span>u8) -&gt; usize {
+ dst <span class="kw">as </span>usize - original <span class="kw">as </span>usize
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
diff --git a/src/bytes/loom.rs.html b/src/bytes/loom.rs.html
new file mode 100644
index 0000000..cc90586
--- /dev/null
+++ b/src/bytes/loom.rs.html
@@ -0,0 +1,62 @@
+<!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 `src/loom.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>loom.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../source-files.js"></script><script defer src="../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../bytes/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../static.files/wheel-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
+<span id="2">2</span>
+<span id="3">3</span>
+<span id="4">4</span>
+<span id="5">5</span>
+<span id="6">6</span>
+<span id="7">7</span>
+<span id="8">8</span>
+<span id="9">9</span>
+<span id="10">10</span>
+<span id="11">11</span>
+<span id="12">12</span>
+<span id="13">13</span>
+<span id="14">14</span>
+<span id="15">15</span>
+<span id="16">16</span>
+<span id="17">17</span>
+<span id="18">18</span>
+<span id="19">19</span>
+<span id="20">20</span>
+<span id="21">21</span>
+<span id="22">22</span>
+<span id="23">23</span>
+<span id="24">24</span>
+<span id="25">25</span>
+<span id="26">26</span>
+<span id="27">27</span>
+<span id="28">28</span>
+<span id="29">29</span>
+<span id="30">30</span>
+</pre><pre class="rust"><code><span class="attr">#[cfg(not(all(test, loom)))]
+</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>sync {
+ <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>atomic {
+ <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>core::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
+
+ <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait </span>AtomicMut&lt;T&gt; {
+ <span class="kw">fn </span>with_mut&lt;F, R&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, f: F) -&gt; R
+ <span class="kw">where
+ </span>F: FnOnce(<span class="kw-2">&amp;mut *mut </span>T) -&gt; R;
+ }
+
+ <span class="kw">impl</span>&lt;T&gt; AtomicMut&lt;T&gt; <span class="kw">for </span>AtomicPtr&lt;T&gt; {
+ <span class="kw">fn </span>with_mut&lt;F, R&gt;(<span class="kw-2">&amp;mut </span><span class="self">self</span>, f: F) -&gt; R
+ <span class="kw">where
+ </span>F: FnOnce(<span class="kw-2">&amp;mut *mut </span>T) -&gt; R,
+ {
+ f(<span class="self">self</span>.get_mut())
+ }
+ }
+ }
+}
+
+<span class="attr">#[cfg(all(test, loom))]
+</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>sync {
+ <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">mod </span>atomic {
+ <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">use </span>loom::sync::atomic::{AtomicPtr, AtomicUsize, Ordering};
+
+ <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">trait </span>AtomicMut&lt;T&gt; {}
+ }
+}
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file
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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 `src/serde.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>serde.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-124a1ca42af929b6.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-eabf764633b9d7be.css" id="mainThemeStyle"><link rel="stylesheet" id="themeStyle" href="../../static.files/light-777f3e9583f8c92d.css"><link rel="stylesheet" disabled href="../../static.files/dark-e2f4109f2e82e3af.css"><link rel="stylesheet" disabled href="../../static.files/ayu-c360e709a65bed99.css"><script id="default-settings" ></script><script src="../../static.files/storage-d43fa987303ecbbb.js"></script><script defer src="../../static.files/source-script-74087aa2e88f4475.js"></script><script defer src="../../source-files.js"></script><script defer src="../../static.files/main-c2d2a5dbaed13e6b.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.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"></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../bytes/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><form class="search-form"><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="../../static.files/wheel-5ec35bf9ca753509.svg"></a></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 super</span>::{Bytes, BytesMut};
+<span class="kw">use </span>alloc::string::String;
+<span class="kw">use </span>alloc::vec::Vec;
+<span class="kw">use </span>core::{cmp, fmt};
+<span class="kw">use </span>serde::{de, Deserialize, Deserializer, Serialize, Serializer};
+
+<span class="macro">macro_rules! </span>serde_impl {
+ (<span class="macro-nonterminal">$ty</span>:ident, <span class="macro-nonterminal">$visitor_ty</span>:ident, <span class="macro-nonterminal">$from_slice</span>:ident, <span class="macro-nonterminal">$from_vec</span>:ident) =&gt; {
+ <span class="kw">impl </span>Serialize <span class="kw">for </span><span class="macro-nonterminal">$ty </span>{
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>serialize&lt;S&gt;(<span class="kw-2">&amp;</span><span class="self">self</span>, serializer: S) -&gt; <span class="prelude-ty">Result</span>&lt;S::Ok, S::Error&gt;
+ <span class="kw">where
+ </span>S: Serializer,
+ {
+ serializer.serialize_bytes(<span class="kw-2">&amp;</span><span class="self">self</span>)
+ }
+ }
+
+ <span class="kw">struct </span><span class="macro-nonterminal">$visitor_ty</span>;
+
+ <span class="kw">impl</span>&lt;<span class="lifetime">&#39;de</span>&gt; de::Visitor&lt;<span class="lifetime">&#39;de</span>&gt; <span class="kw">for </span><span class="macro-nonterminal">$visitor_ty </span>{
+ <span class="kw">type </span>Value = <span class="macro-nonterminal">$ty</span>;
+
+ <span class="kw">fn </span>expecting(<span class="kw-2">&amp;</span><span class="self">self</span>, formatter: <span class="kw-2">&amp;mut </span>fmt::Formatter&lt;<span class="lifetime">&#39;_</span>&gt;) -&gt; fmt::Result {
+ formatter.write_str(<span class="string">&quot;byte array&quot;</span>)
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>visit_seq&lt;V&gt;(<span class="self">self</span>, <span class="kw-2">mut </span>seq: V) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Value, V::Error&gt;
+ <span class="kw">where
+ </span>V: de::SeqAccess&lt;<span class="lifetime">&#39;de</span>&gt;,
+ {
+ <span class="kw">let </span>len = cmp::min(seq.size_hint().unwrap_or(<span class="number">0</span>), <span class="number">4096</span>);
+ <span class="kw">let </span><span class="kw-2">mut </span>values: Vec&lt;u8&gt; = Vec::with_capacity(len);
+
+ <span class="kw">while let </span><span class="prelude-val">Some</span>(value) = seq.next_element()<span class="question-mark">? </span>{
+ values.push(value);
+ }
+
+ <span class="prelude-val">Ok</span>(<span class="macro-nonterminal">$ty</span>::<span class="macro-nonterminal">$from_vec</span>(values))
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>visit_bytes&lt;E&gt;(<span class="self">self</span>, v: <span class="kw-2">&amp;</span>[u8]) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Value, E&gt;
+ <span class="kw">where
+ </span>E: de::Error,
+ {
+ <span class="prelude-val">Ok</span>(<span class="macro-nonterminal">$ty</span>::<span class="macro-nonterminal">$from_slice</span>(v))
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>visit_byte_buf&lt;E&gt;(<span class="self">self</span>, v: Vec&lt;u8&gt;) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Value, E&gt;
+ <span class="kw">where
+ </span>E: de::Error,
+ {
+ <span class="prelude-val">Ok</span>(<span class="macro-nonterminal">$ty</span>::<span class="macro-nonterminal">$from_vec</span>(v))
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>visit_str&lt;E&gt;(<span class="self">self</span>, v: <span class="kw-2">&amp;</span>str) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Value, E&gt;
+ <span class="kw">where
+ </span>E: de::Error,
+ {
+ <span class="prelude-val">Ok</span>(<span class="macro-nonterminal">$ty</span>::<span class="macro-nonterminal">$from_slice</span>(v.as_bytes()))
+ }
+
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>visit_string&lt;E&gt;(<span class="self">self</span>, v: String) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="self">Self</span>::Value, E&gt;
+ <span class="kw">where
+ </span>E: de::Error,
+ {
+ <span class="prelude-val">Ok</span>(<span class="macro-nonterminal">$ty</span>::<span class="macro-nonterminal">$from_vec</span>(v.into_bytes()))
+ }
+ }
+
+ <span class="kw">impl</span>&lt;<span class="lifetime">&#39;de</span>&gt; Deserialize&lt;<span class="lifetime">&#39;de</span>&gt; <span class="kw">for </span><span class="macro-nonterminal">$ty </span>{
+ <span class="attr">#[inline]
+ </span><span class="kw">fn </span>deserialize&lt;D&gt;(deserializer: D) -&gt; <span class="prelude-ty">Result</span>&lt;<span class="macro-nonterminal">$ty</span>, D::Error&gt;
+ <span class="kw">where
+ </span>D: Deserializer&lt;<span class="lifetime">&#39;de</span>&gt;,
+ {
+ deserializer.deserialize_byte_buf(<span class="macro-nonterminal">$visitor_ty</span>)
+ }
+ }
+ };
+}
+
+<span class="macro">serde_impl!</span>(Bytes, BytesVisitor, copy_from_slice, from);
+<span class="macro">serde_impl!</span>(BytesMut, BytesMutVisitor, from, from_vec);
+</code></pre></div>
+</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="bytes" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0-nightly (42325c525 2022-11-11)" data-search-js="search-39ee4160c7dc16c9.js" data-settings-js="settings-3a0b9947ba1bd99a.js" data-settings-css="settings-a66f7524084a489a.css" ></div></body></html> \ No newline at end of file