diff --git a/mapping.rs b/mapping.rs index a5f2862..26c083d 100644 --- a/mapping.rs +++ b/mapping.rs @@ -333,3 +333,4 @@ -Mapping("258ae6dd9b1a8ac97986852fc9f00f7687004ccb","3cb78259862d37da082f628af3ccb54edf264fd0") -Mapping("ad36c2f5528d617db66c244d8bcbfc4b36da0ca0","b4be4758361bf1b03410a523e8672b1c1fa7d385") -Mapping("14481f72102ba2abb5f314d5537fee90352981c5","b4be4758361bf1b03410a523e8672b1c1fa7d385") +-Mapping("c9334404f06a188854af33835a0efe1e834e4ac4","cb56b2d1522e83c5bb0613abcf78b686e994df9e") diff --git a/patches/cb56b2d1522e83c5bb0613abcf78b686e994df9e.patch b/patches/cb56b2d1522e83c5bb0613abcf78b686e994df9e.patch new file mode 100644 index 0000000..483d0be --- /dev/null +++ b/patches/cb56b2d1522e83c5bb0613abcf78b686e994df9e.patch @@ -0,0 +1,1687 @@ +diff --git a/buffered.rs b/buffered.rs +index 9250c1c..bcbf8f1 100644 +--- a/buffered.rs ++++ b/buffered.rs +@@ -12,11 +12,10 @@ + + use io::prelude::*; + +-use cmp; +-use error; +-use fmt; ++use core::cmp; ++use core::fmt; + use io::{self, Initializer, DEFAULT_BUF_SIZE, Error, ErrorKind, SeekFrom}; +-use memchr; ++use core::slice::memchr; + + /// The `BufReader` struct adds buffering to any reader. + /// +@@ -46,7 +45,6 @@ use memchr; + /// # Ok(()) + /// # } + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct BufReader { + inner: R, + buf: Box<[u8]>, +@@ -69,7 +67,6 @@ impl BufReader { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn new(inner: R) -> BufReader { + BufReader::with_capacity(DEFAULT_BUF_SIZE, inner) + } +@@ -90,7 +87,6 @@ impl BufReader { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn with_capacity(cap: usize, inner: R) -> BufReader { + unsafe { + let mut buffer = Vec::with_capacity(cap); +@@ -123,7 +119,6 @@ impl BufReader { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_ref(&self) -> &R { &self.inner } + + /// Gets a mutable reference to the underlying reader. +@@ -144,7 +139,6 @@ impl BufReader { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_mut(&mut self) -> &mut R { &mut self.inner } + + /// Returns `true` if there are no bytes in the internal buffer. +@@ -167,7 +161,6 @@ impl BufReader { + /// # Ok(()) + /// # } + /// ``` +- #[unstable(feature = "bufreader_is_empty", issue = "45323", reason = "recently added")] + pub fn is_empty(&self) -> bool { + self.pos == self.cap + } +@@ -190,7 +183,6 @@ impl BufReader { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn into_inner(self) -> R { self.inner } + } + +@@ -199,7 +191,6 @@ impl BufReader { + /// the buffer will not be flushed, allowing for more efficient seeks. + /// This method does not return the location of the underlying reader, so the caller + /// must track this information themselves if it is required. +- #[unstable(feature = "bufreader_seek_relative", issue = "31100")] + pub fn seek_relative(&mut self, offset: i64) -> io::Result<()> { + let pos = self.pos as u64; + if offset < 0 { +@@ -219,7 +210,6 @@ impl BufReader { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Read for BufReader { + fn read(&mut self, buf: &mut [u8]) -> io::Result { + // If we don't have any buffered data and we're doing a massive read +@@ -242,7 +232,6 @@ impl Read for BufReader { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl BufRead for BufReader { + fn fill_buf(&mut self) -> io::Result<&[u8]> { + // If we've reached the end of our internal buffer then we need to fetch +@@ -262,7 +251,6 @@ impl BufRead for BufReader { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl fmt::Debug for BufReader where R: fmt::Debug { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + fmt.debug_struct("BufReader") +@@ -272,7 +260,6 @@ impl fmt::Debug for BufReader where R: fmt::Debug { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Seek for BufReader { + /// Seek to an offset, in bytes, in the underlying reader. + /// +@@ -374,7 +361,6 @@ impl Seek for BufReader { + /// [`Tcpstream::write`]: ../../std/net/struct.TcpStream.html#method.write + /// [`TcpStream`]: ../../std/net/struct.TcpStream.html + /// [`flush`]: #method.flush +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct BufWriter { + inner: Option, + buf: Vec, +@@ -409,7 +395,6 @@ pub struct BufWriter { + /// }; + /// ``` + #[derive(Debug)] +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct IntoInnerError(W, Error); + + impl BufWriter { +@@ -423,7 +408,6 @@ impl BufWriter { + /// + /// let mut buffer = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap()); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn new(inner: W) -> BufWriter { + BufWriter::with_capacity(DEFAULT_BUF_SIZE, inner) + } +@@ -441,7 +425,6 @@ impl BufWriter { + /// let stream = TcpStream::connect("127.0.0.1:34254").unwrap(); + /// let mut buffer = BufWriter::with_capacity(100, stream); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn with_capacity(cap: usize, inner: W) -> BufWriter { + BufWriter { + inner: Some(inner), +@@ -490,7 +473,6 @@ impl BufWriter { + /// // we can use reference just like buffer + /// let reference = buffer.get_ref(); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_ref(&self) -> &W { self.inner.as_ref().unwrap() } + + /// Gets a mutable reference to the underlying writer. +@@ -508,7 +490,6 @@ impl BufWriter { + /// // we can use reference just like buffer + /// let reference = buffer.get_mut(); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_mut(&mut self) -> &mut W { self.inner.as_mut().unwrap() } + + /// Unwraps this `BufWriter`, returning the underlying writer. +@@ -530,7 +511,6 @@ impl BufWriter { + /// // unwrap the TcpStream and flush the buffer + /// let stream = buffer.into_inner().unwrap(); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn into_inner(mut self) -> Result>> { + match self.flush_buf() { + Err(e) => Err(IntoInnerError(self, e)), +@@ -539,7 +519,6 @@ impl BufWriter { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Write for BufWriter { + fn write(&mut self, buf: &[u8]) -> io::Result { + if self.buf.len() + buf.len() > self.buf.capacity() { +@@ -559,7 +538,6 @@ impl Write for BufWriter { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl fmt::Debug for BufWriter where W: fmt::Debug { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + fmt.debug_struct("BufWriter") +@@ -569,7 +547,6 @@ impl fmt::Debug for BufWriter where W: fmt::Debug { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Seek for BufWriter { + /// Seek to the offset, in bytes, in the underlying writer. + /// +@@ -579,7 +556,6 @@ impl Seek for BufWriter { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Drop for BufWriter { + fn drop(&mut self) { + if self.inner.is_some() && !self.panicked { +@@ -618,7 +594,6 @@ impl IntoInnerError { + /// } + /// }; + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn error(&self) -> &Error { &self.1 } + + /// Returns the buffered writer instance which generated the error. +@@ -651,23 +626,13 @@ impl IntoInnerError { + /// } + /// }; + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn into_inner(self) -> W { self.0 } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl From> for Error { + fn from(iie: IntoInnerError) -> Error { iie.1 } + } + +-#[stable(feature = "rust1", since = "1.0.0")] +-impl error::Error for IntoInnerError { +- fn description(&self) -> &str { +- error::Error::description(self.error()) +- } +-} +- +-#[stable(feature = "rust1", since = "1.0.0")] + impl fmt::Display for IntoInnerError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + self.error().fmt(f) +@@ -725,7 +690,6 @@ impl fmt::Display for IntoInnerError { + /// # Ok(()) + /// # } + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct LineWriter { + inner: BufWriter, + need_flush: bool, +@@ -746,7 +710,6 @@ impl LineWriter { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn new(inner: W) -> LineWriter { + // Lines typically aren't that long, don't use a giant buffer + LineWriter::with_capacity(1024, inner) +@@ -767,7 +730,6 @@ impl LineWriter { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn with_capacity(cap: usize, inner: W) -> LineWriter { + LineWriter { + inner: BufWriter::with_capacity(cap, inner), +@@ -791,7 +753,6 @@ impl LineWriter { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_ref(&self) -> &W { self.inner.get_ref() } + + /// Gets a mutable reference to the underlying writer. +@@ -814,7 +775,6 @@ impl LineWriter { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_mut(&mut self) -> &mut W { self.inner.get_mut() } + + /// Unwraps this `LineWriter`, returning the underlying writer. +@@ -840,7 +800,6 @@ impl LineWriter { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn into_inner(self) -> Result>> { + self.inner.into_inner().map_err(|IntoInnerError(buf, e)| { + IntoInnerError(LineWriter { +@@ -851,7 +810,6 @@ impl LineWriter { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Write for LineWriter { + fn write(&mut self, buf: &[u8]) -> io::Result { + if self.need_flush { +@@ -896,7 +854,6 @@ impl Write for LineWriter { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl fmt::Debug for LineWriter where W: fmt::Debug { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + fmt.debug_struct("LineWriter") +diff --git a/cursor.rs b/cursor.rs +index 76bcb5f..ddeaa2b 100644 +--- a/cursor.rs ++++ b/cursor.rs +@@ -11,7 +11,7 @@ + use io::prelude::*; + + use core::convert::TryInto; +-use cmp; ++use core::cmp; + use io::{self, Initializer, SeekFrom, Error, ErrorKind}; + + /// A `Cursor` wraps another type and provides it with a +@@ -79,7 +79,6 @@ use io::{self, Initializer, SeekFrom, Error, ErrorKind}; + /// assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]); + /// } + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + #[derive(Clone, Debug)] + pub struct Cursor { + inner: T, +@@ -102,7 +101,6 @@ impl Cursor { + /// # fn force_inference(_: &Cursor>) {} + /// # force_inference(&buff); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn new(inner: T) -> Cursor { + Cursor { pos: 0, inner: inner } + } +@@ -120,7 +118,6 @@ impl Cursor { + /// + /// let vec = buff.into_inner(); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn into_inner(self) -> T { self.inner } + + /// Gets a reference to the underlying value in this cursor. +@@ -136,7 +133,6 @@ impl Cursor { + /// + /// let reference = buff.get_ref(); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_ref(&self) -> &T { &self.inner } + + /// Gets a mutable reference to the underlying value in this cursor. +@@ -155,7 +151,6 @@ impl Cursor { + /// + /// let reference = buff.get_mut(); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn get_mut(&mut self) -> &mut T { &mut self.inner } + + /// Returns the current position of this cursor. +@@ -177,7 +172,6 @@ impl Cursor { + /// buff.seek(SeekFrom::Current(-1)).unwrap(); + /// assert_eq!(buff.position(), 1); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn position(&self) -> u64 { self.pos } + + /// Sets the position of this cursor. +@@ -197,11 +191,9 @@ impl Cursor { + /// buff.set_position(4); + /// assert_eq!(buff.position(), 4); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn set_position(&mut self, pos: u64) { self.pos = pos; } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl io::Seek for Cursor where T: AsRef<[u8]> { + fn seek(&mut self, style: SeekFrom) -> io::Result { + let (base_pos, offset) = match style { +@@ -222,17 +214,16 @@ impl io::Seek for Cursor where T: AsRef<[u8]> { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Read for Cursor where T: AsRef<[u8]> { + fn read(&mut self, buf: &mut [u8]) -> io::Result { +- let n = Read::read(&mut self.fill_buf()?, buf)?; ++ let n = Read::read(&mut self.get_buf()?, buf)?; + self.pos += n as u64; + Ok(n) + } + + fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> { + let n = buf.len(); +- Read::read_exact(&mut self.fill_buf()?, buf)?; ++ Read::read_exact(&mut self.get_buf()?, buf)?; + self.pos += n as u64; + Ok(()) + } +@@ -243,12 +234,16 @@ impl Read for Cursor where T: AsRef<[u8]> { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] +-impl BufRead for Cursor where T: AsRef<[u8]> { +- fn fill_buf(&mut self) -> io::Result<&[u8]> { ++impl Cursor where T: AsRef<[u8]> { ++ fn get_buf(&mut self) -> io::Result<&[u8]> { + let amt = cmp::min(self.pos, self.inner.as_ref().len() as u64); + Ok(&self.inner.as_ref()[(amt as usize)..]) + } ++} ++ ++#[cfg(feature="collections")] ++impl BufRead for Cursor where T: AsRef<[u8]> { ++ fn fill_buf(&mut self) -> io::Result<&[u8]> { self.get_buf() } + fn consume(&mut self, amt: usize) { self.pos += amt as u64; } + } + +@@ -261,6 +256,7 @@ fn slice_write(pos_mut: &mut u64, slice: &mut [u8], buf: &[u8]) -> io::Result, buf: &[u8]) -> io::Result { + let pos: usize = (*pos_mut).try_into().map_err(|_| { + Error::new(ErrorKind::InvalidInput, +@@ -287,7 +283,6 @@ fn vec_write(pos_mut: &mut u64, vec: &mut Vec, buf: &[u8]) -> io::Result Write for Cursor<&'a mut [u8]> { + #[inline] + fn write(&mut self, buf: &[u8]) -> io::Result { +@@ -296,7 +291,7 @@ impl<'a> Write for Cursor<&'a mut [u8]> { + fn flush(&mut self) -> io::Result<()> { Ok(()) } + } + +-#[stable(feature = "cursor_mut_vec", since = "1.25.0")] ++#[cfg(feature = "collections")] + impl<'a> Write for Cursor<&'a mut Vec> { + fn write(&mut self, buf: &[u8]) -> io::Result { + vec_write(&mut self.pos, self.inner, buf) +@@ -304,7 +299,7 @@ impl<'a> Write for Cursor<&'a mut Vec> { + fn flush(&mut self) -> io::Result<()> { Ok(()) } + } + +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature = "collections")] + impl Write for Cursor> { + fn write(&mut self, buf: &[u8]) -> io::Result { + vec_write(&mut self.pos, &mut self.inner, buf) +@@ -312,8 +307,8 @@ impl Write for Cursor> { + fn flush(&mut self) -> io::Result<()> { Ok(()) } + } + +-#[stable(feature = "cursor_box_slice", since = "1.5.0")] +-impl Write for Cursor> { ++#[cfg(feature = "alloc")] ++impl Write for Cursor<::alloc::boxed::Box<[u8]>> { + #[inline] + fn write(&mut self, buf: &[u8]) -> io::Result { + slice_write(&mut self.pos, &mut self.inner, buf) +diff --git a/error.rs b/error.rs +index bdd675e..520c12c 100644 +--- a/error.rs ++++ b/error.rs +@@ -8,11 +8,16 @@ + // option. This file may not be copied, modified, or distributed + // except according to those terms. + +-use error; +-use fmt; +-use result; +-use sys; +-use convert::From; ++#[cfg(feature="alloc")] use alloc::boxed::Box; ++#[cfg(not(feature="alloc"))] use ::FakeBox as Box; ++use core::convert::Into; ++use core::fmt; ++use core::marker::{Send, Sync}; ++use core::option::Option::{self, Some, None}; ++use core::result; ++#[cfg(feature="collections")] use collections::string::String; ++#[cfg(not(feature="collections"))] use ::ErrorString as String; ++use core::convert::From; + + /// A specialized [`Result`](../result/enum.Result.html) type for I/O + /// operations. +@@ -48,7 +53,6 @@ use convert::From; + /// Ok(buffer) + /// } + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub type Result = result::Result; + + /// The error type for I/O operations of the [`Read`], [`Write`], [`Seek`], and +@@ -62,12 +66,10 @@ pub type Result = result::Result; + /// [`Write`]: ../io/trait.Write.html + /// [`Seek`]: ../io/trait.Seek.html + /// [`ErrorKind`]: enum.ErrorKind.html +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct Error { + repr: Repr, + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl fmt::Debug for Error { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fmt::Debug::fmt(&self.repr, f) +@@ -77,13 +79,16 @@ impl fmt::Debug for Error { + enum Repr { + Os(i32), + Simple(ErrorKind), ++ #[cfg(feature="alloc")] + Custom(Box), ++ #[cfg(not(feature="alloc"))] ++ Custom(Custom), + } + + #[derive(Debug)] + struct Custom { + kind: ErrorKind, +- error: Box, ++ error: String, + } + + /// A list specifying general categories of I/O error. +@@ -95,47 +100,34 @@ struct Custom { + /// + /// [`io::Error`]: struct.Error.html + #[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)] +-#[stable(feature = "rust1", since = "1.0.0")] + #[allow(deprecated)] + pub enum ErrorKind { + /// An entity was not found, often a file. +- #[stable(feature = "rust1", since = "1.0.0")] + NotFound, + /// The operation lacked the necessary privileges to complete. +- #[stable(feature = "rust1", since = "1.0.0")] + PermissionDenied, + /// The connection was refused by the remote server. +- #[stable(feature = "rust1", since = "1.0.0")] + ConnectionRefused, + /// The connection was reset by the remote server. +- #[stable(feature = "rust1", since = "1.0.0")] + ConnectionReset, + /// The connection was aborted (terminated) by the remote server. +- #[stable(feature = "rust1", since = "1.0.0")] + ConnectionAborted, + /// The network operation failed because it was not connected yet. +- #[stable(feature = "rust1", since = "1.0.0")] + NotConnected, + /// A socket address could not be bound because the address is already in + /// use elsewhere. +- #[stable(feature = "rust1", since = "1.0.0")] + AddrInUse, + /// A nonexistent interface was requested or the requested address was not + /// local. +- #[stable(feature = "rust1", since = "1.0.0")] + AddrNotAvailable, + /// The operation failed because a pipe was closed. +- #[stable(feature = "rust1", since = "1.0.0")] + BrokenPipe, + /// An entity already exists, often a file. +- #[stable(feature = "rust1", since = "1.0.0")] + AlreadyExists, + /// The operation needs to block to complete, but the blocking operation was + /// requested to not occur. +- #[stable(feature = "rust1", since = "1.0.0")] + WouldBlock, + /// A parameter was incorrect. +- #[stable(feature = "rust1", since = "1.0.0")] + InvalidInput, + /// Data not valid for the operation were encountered. + /// +@@ -147,10 +139,8 @@ pub enum ErrorKind { + /// `InvalidData` if the file's contents are not valid UTF-8. + /// + /// [`InvalidInput`]: #variant.InvalidInput +- #[stable(feature = "io_invalid_data", since = "1.2.0")] + InvalidData, + /// The I/O operation's timeout expired, causing it to be canceled. +- #[stable(feature = "rust1", since = "1.0.0")] + TimedOut, + /// An error returned when an operation could not be completed because a + /// call to [`write`] returned [`Ok(0)`]. +@@ -161,15 +151,12 @@ pub enum ErrorKind { + /// + /// [`write`]: ../../std/io/trait.Write.html#tymethod.write + /// [`Ok(0)`]: ../../std/io/type.Result.html +- #[stable(feature = "rust1", since = "1.0.0")] + WriteZero, + /// This operation was interrupted. + /// + /// Interrupted operations can typically be retried. +- #[stable(feature = "rust1", since = "1.0.0")] + Interrupted, + /// Any I/O error not part of this list. +- #[stable(feature = "rust1", since = "1.0.0")] + Other, + + /// An error returned when an operation could not be completed because an +@@ -178,15 +165,10 @@ pub enum ErrorKind { + /// This typically means that an operation could only succeed if it read a + /// particular number of bytes but only a smaller number of bytes could be + /// read. +- #[stable(feature = "read_exact", since = "1.6.0")] + UnexpectedEof, + + /// A marker variant that tells the compiler that users of this enum cannot + /// match it exhaustively. +- #[unstable(feature = "io_error_internals", +- reason = "better expressed through extensible enums that this \ +- enum cannot be exhaustively matched against", +- issue = "0")] + #[doc(hidden)] + __Nonexhaustive, + } +@@ -219,7 +201,6 @@ impl ErrorKind { + + /// Intended for use for errors not exposed to the user, where allocating onto + /// the heap (for normal construction via Error::new) is too costly. +-#[stable(feature = "io_error_from_errorkind", since = "1.14.0")] + impl From for Error { + #[inline] + fn from(kind: ErrorKind) -> Error { +@@ -248,14 +229,13 @@ impl Error { + /// // errors can also be created from other errors + /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn new(kind: ErrorKind, error: E) -> Error +- where E: Into> ++ where E: Into + { + Self::_new(kind, error.into()) + } + +- fn _new(kind: ErrorKind, error: Box) -> Error { ++ fn _new(kind: ErrorKind, error: String) -> Error { + Error { + repr: Repr::Custom(Box::new(Custom { + kind, +@@ -264,24 +244,6 @@ impl Error { + } + } + +- /// Returns an error representing the last OS error which occurred. +- /// +- /// This function reads the value of `errno` for the target platform (e.g. +- /// `GetLastError` on Windows) and will return a corresponding instance of +- /// `Error` for the error code. +- /// +- /// # Examples +- /// +- /// ``` +- /// use std::io::Error; +- /// +- /// println!("last OS error: {:?}", Error::last_os_error()); +- /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] +- pub fn last_os_error() -> Error { +- Error::from_raw_os_error(sys::os::errno() as i32) +- } +- + /// Creates a new instance of an `Error` from a particular OS error code. + /// + /// # Examples +@@ -307,7 +269,6 @@ impl Error { + /// assert_eq!(error.kind(), io::ErrorKind::InvalidInput); + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn from_raw_os_error(code: i32) -> Error { + Error { repr: Repr::Os(code) } + } +@@ -338,7 +299,6 @@ impl Error { + /// print_os_error(&Error::new(ErrorKind::Other, "oh no!")); + /// } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn raw_os_error(&self) -> Option { + match self.repr { + Repr::Os(i) => Some(i), +@@ -372,12 +332,11 @@ impl Error { + /// print_error(&Error::new(ErrorKind::Other, "oh no!")); + /// } + /// ``` +- #[stable(feature = "io_error_inner", since = "1.3.0")] +- pub fn get_ref(&self) -> Option<&(error::Error+Send+Sync+'static)> { ++ pub fn get_ref(&self) -> Option<&String> { + match self.repr { + Repr::Os(..) => None, + Repr::Simple(..) => None, +- Repr::Custom(ref c) => Some(&*c.error), ++ Repr::Custom(ref c) => Some(&c.error), + } + } + +@@ -443,12 +402,11 @@ impl Error { + /// print_error(&change_error(Error::new(ErrorKind::Other, MyError::new()))); + /// } + /// ``` +- #[stable(feature = "io_error_inner", since = "1.3.0")] +- pub fn get_mut(&mut self) -> Option<&mut (error::Error+Send+Sync+'static)> { ++ pub fn get_mut(&mut self) -> Option<&mut String> { + match self.repr { + Repr::Os(..) => None, + Repr::Simple(..) => None, +- Repr::Custom(ref mut c) => Some(&mut *c.error), ++ Repr::Custom(ref mut c) => Some(&mut c.error), + } + } + +@@ -477,8 +435,7 @@ impl Error { + /// print_error(Error::new(ErrorKind::Other, "oh no!")); + /// } + /// ``` +- #[stable(feature = "io_error_inner", since = "1.3.0")] +- pub fn into_inner(self) -> Option> { ++ pub fn into_inner(self) -> Option { + match self.repr { + Repr::Os(..) => None, + Repr::Simple(..) => None, +@@ -504,10 +461,9 @@ impl Error { + /// print_error(Error::new(ErrorKind::AddrInUse, "oh no!")); + /// } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn kind(&self) -> ErrorKind { + match self.repr { +- Repr::Os(code) => sys::decode_error_kind(code), ++ Repr::Os(_code) => ErrorKind::Other, + Repr::Custom(ref c) => c.kind, + Repr::Simple(kind) => kind, + } +@@ -518,23 +474,18 @@ impl fmt::Debug for Repr { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + match *self { + Repr::Os(code) => +- fmt.debug_struct("Os") +- .field("code", &code) +- .field("kind", &sys::decode_error_kind(code)) +- .field("message", &sys::os::error_string(code)).finish(), ++ fmt.debug_struct("Os").field("code", &code).finish(), + Repr::Custom(ref c) => fmt::Debug::fmt(&c, fmt), + Repr::Simple(kind) => fmt.debug_tuple("Kind").field(&kind).finish(), + } + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl fmt::Display for Error { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + match self.repr { + Repr::Os(code) => { +- let detail = sys::os::error_string(code); +- write!(fmt, "{} (os error {})", detail, code) ++ write!(fmt, "os error {}", code) + } + Repr::Custom(ref c) => c.error.fmt(fmt), + Repr::Simple(kind) => write!(fmt, "{}", kind.as_str()), +@@ -542,24 +493,6 @@ impl fmt::Display for Error { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] +-impl error::Error for Error { +- fn description(&self) -> &str { +- match self.repr { +- Repr::Os(..) | Repr::Simple(..) => self.kind().as_str(), +- Repr::Custom(ref c) => c.error.description(), +- } +- } +- +- fn cause(&self) -> Option<&error::Error> { +- match self.repr { +- Repr::Os(..) => None, +- Repr::Simple(..) => None, +- Repr::Custom(ref c) => c.error.cause(), +- } +- } +-} +- + fn _assert_error_is_sync_send() { + fn _is_sync_send() {} + _is_sync_send::(); +@@ -568,8 +501,7 @@ fn _assert_error_is_sync_send() { + #[cfg(test)] + mod test { + use super::{Error, ErrorKind, Repr, Custom}; +- use error; +- use fmt; ++ use core::fmt; + use sys::os::error_string; + use sys::decode_error_kind; + +diff --git a/impls.rs b/impls.rs +index fe1179a..e647a82 100644 +--- a/impls.rs ++++ b/impls.rs +@@ -8,15 +8,18 @@ + // option. This file may not be copied, modified, or distributed + // except according to those terms. + +-use cmp; +-use io::{self, SeekFrom, Read, Initializer, Write, Seek, BufRead, Error, ErrorKind}; +-use fmt; +-use mem; ++#[cfg(feature="alloc")] use alloc::boxed::Box; ++use core::cmp; ++use io::{self, SeekFrom, Read, Initializer, Write, Seek, Error, ErrorKind}; ++#[cfg(feature="collections")] use io::BufRead; ++use core::fmt; ++use core::mem; ++#[cfg(feature="collections")] use collections::string::String; ++#[cfg(feature="collections")] use collections::vec::Vec; + + // ============================================================================= + // Forwarding implementations + +-#[stable(feature = "rust1", since = "1.0.0")] + impl<'a, R: Read + ?Sized> Read for &'a mut R { + #[inline] + fn read(&mut self, buf: &mut [u8]) -> io::Result { +@@ -28,11 +31,13 @@ impl<'a, R: Read + ?Sized> Read for &'a mut R { + (**self).initializer() + } + ++ #[cfg(feature="collections")] + #[inline] + fn read_to_end(&mut self, buf: &mut Vec) -> io::Result { + (**self).read_to_end(buf) + } + ++ #[cfg(feature="collections")] + #[inline] + fn read_to_string(&mut self, buf: &mut String) -> io::Result { + (**self).read_to_string(buf) +@@ -43,7 +48,6 @@ impl<'a, R: Read + ?Sized> Read for &'a mut R { + (**self).read_exact(buf) + } + } +-#[stable(feature = "rust1", since = "1.0.0")] + impl<'a, W: Write + ?Sized> Write for &'a mut W { + #[inline] + fn write(&mut self, buf: &[u8]) -> io::Result { (**self).write(buf) } +@@ -61,12 +65,11 @@ impl<'a, W: Write + ?Sized> Write for &'a mut W { + (**self).write_fmt(fmt) + } + } +-#[stable(feature = "rust1", since = "1.0.0")] + impl<'a, S: Seek + ?Sized> Seek for &'a mut S { + #[inline] + fn seek(&mut self, pos: SeekFrom) -> io::Result { (**self).seek(pos) } + } +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl<'a, B: BufRead + ?Sized> BufRead for &'a mut B { + #[inline] + fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() } +@@ -85,7 +88,7 @@ impl<'a, B: BufRead + ?Sized> BufRead for &'a mut B { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature = "alloc")] + impl Read for Box { + #[inline] + fn read(&mut self, buf: &mut [u8]) -> io::Result { +@@ -97,11 +100,13 @@ impl Read for Box { + (**self).initializer() + } + ++ #[cfg(feature="collections")] + #[inline] + fn read_to_end(&mut self, buf: &mut Vec) -> io::Result { + (**self).read_to_end(buf) + } + ++ #[cfg(feature="collections")] + #[inline] + fn read_to_string(&mut self, buf: &mut String) -> io::Result { + (**self).read_to_string(buf) +@@ -112,7 +117,7 @@ impl Read for Box { + (**self).read_exact(buf) + } + } +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="alloc")] + impl Write for Box { + #[inline] + fn write(&mut self, buf: &[u8]) -> io::Result { (**self).write(buf) } +@@ -130,12 +135,12 @@ impl Write for Box { + (**self).write_fmt(fmt) + } + } +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="alloc")] + impl Seek for Box { + #[inline] + fn seek(&mut self, pos: SeekFrom) -> io::Result { (**self).seek(pos) } + } +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl BufRead for Box { + #[inline] + fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() } +@@ -161,7 +166,6 @@ impl BufRead for Box { + /// + /// Note that reading updates the slice to point to the yet unread part. + /// The slice will be empty when EOF is reached. +-#[stable(feature = "rust1", since = "1.0.0")] + impl<'a> Read for &'a [u8] { + #[inline] + fn read(&mut self, buf: &mut [u8]) -> io::Result { +@@ -207,6 +211,7 @@ impl<'a> Read for &'a [u8] { + Ok(()) + } + ++ #[cfg(feature="collections")] + #[inline] + fn read_to_end(&mut self, buf: &mut Vec) -> io::Result { + buf.extend_from_slice(*self); +@@ -216,7 +221,7 @@ impl<'a> Read for &'a [u8] { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl<'a> BufRead for &'a [u8] { + #[inline] + fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) } +@@ -230,7 +235,6 @@ impl<'a> BufRead for &'a [u8] { + /// + /// Note that writing updates the slice to point to the yet unwritten part. + /// The slice will be empty when it has been completely overwritten. +-#[stable(feature = "rust1", since = "1.0.0")] + impl<'a> Write for &'a mut [u8] { + #[inline] + fn write(&mut self, data: &[u8]) -> io::Result { +@@ -256,7 +260,7 @@ impl<'a> Write for &'a mut [u8] { + + /// Write is implemented for `Vec` by appending to the vector. + /// The vector will grow as needed. +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl Write for Vec { + #[inline] + fn write(&mut self, buf: &[u8]) -> io::Result { +diff --git a/memchr.rs b/memchr.rs +index 240e820..9835b90 100644 +--- a/memchr.rs ++++ b/memchr.rs +@@ -25,7 +25,7 @@ + /// This shows how to find the first position of a byte in a byte string. + /// + /// ```ignore (cannot-doctest-private-modules) +-/// use memchr::memchr; ++/// use core::memchr::memchr; + /// + /// let haystack = b"the quick brown fox"; + /// assert_eq!(memchr(b'k', haystack), Some(8)); +@@ -45,7 +45,7 @@ pub fn memchr(needle: u8, haystack: &[u8]) -> Option { + /// This shows how to find the last position of a byte in a byte string. + /// + /// ```ignore (cannot-doctest-private-modules) +-/// use memchr::memrchr; ++/// use core::memchr::memrchr; + /// + /// let haystack = b"the quick brown fox"; + /// assert_eq!(memrchr(b'o', haystack), Some(17)); +diff --git a/mod.rs b/mod.rs +index d403bf6..50bbc9d 100644 +--- a/mod.rs ++++ b/mod.rs +@@ -268,50 +268,33 @@ + //! [`Result`]: ../result/enum.Result.html + //! [`.unwrap()`]: ../result/enum.Result.html#method.unwrap + +-#![stable(feature = "rust1", since = "1.0.0")] +- +-use cmp; ++use core::cmp; + use core::str as core_str; +-use error as std_error; +-use fmt; +-use result; +-use str; +-use memchr; +-use ptr; +- +-#[stable(feature = "rust1", since = "1.0.0")] +-pub use self::buffered::{BufReader, BufWriter, LineWriter}; +-#[stable(feature = "rust1", since = "1.0.0")] +-pub use self::buffered::IntoInnerError; +-#[stable(feature = "rust1", since = "1.0.0")] ++use core::fmt; ++use core::result; ++use core::str; ++use core::slice::memchr; ++use core::ptr; ++ ++#[cfg(feature="collections")] pub use self::buffered::{BufReader, BufWriter, LineWriter}; ++#[cfg(feature="collections")] pub use self::buffered::IntoInnerError; + pub use self::cursor::Cursor; +-#[stable(feature = "rust1", since = "1.0.0")] + pub use self::error::{Result, Error, ErrorKind}; +-#[stable(feature = "rust1", since = "1.0.0")] + pub use self::util::{copy, sink, Sink, empty, Empty, repeat, Repeat}; +-#[stable(feature = "rust1", since = "1.0.0")] +-pub use self::stdio::{stdin, stdout, stderr, Stdin, Stdout, Stderr}; +-#[stable(feature = "rust1", since = "1.0.0")] +-pub use self::stdio::{StdoutLock, StderrLock, StdinLock}; +-#[unstable(feature = "print_internals", issue = "0")] +-pub use self::stdio::{_print, _eprint}; +-#[unstable(feature = "libstd_io_internals", issue = "42788")] +-#[doc(no_inline, hidden)] +-pub use self::stdio::{set_panic, set_print}; + + pub mod prelude; +-mod buffered; ++#[cfg(feature="collections")] mod buffered; + mod cursor; + mod error; + mod impls; +-mod lazy; + mod util; +-mod stdio; + +-const DEFAULT_BUF_SIZE: usize = ::sys_common::io::DEFAULT_BUF_SIZE; ++const DEFAULT_BUF_SIZE: usize = 8 * 1024; + ++#[cfg(feature="collections")] + struct Guard<'a> { buf: &'a mut Vec, len: usize } + ++#[cfg(feature="collections")] + impl<'a> Drop for Guard<'a> { + fn drop(&mut self) { + unsafe { self.buf.set_len(self.len); } +@@ -336,6 +319,7 @@ impl<'a> Drop for Guard<'a> { + // 2. We're passing a raw buffer to the function `f`, and it is expected that + // the function only *appends* bytes to the buffer. We'll get undefined + // behavior if existing bytes are overwritten to have non-UTF-8 data. ++#[cfg(feature="collections")] + fn append_to_string(buf: &mut String, f: F) -> Result + where F: FnOnce(&mut Vec) -> Result + { +@@ -363,6 +347,7 @@ fn append_to_string(buf: &mut String, f: F) -> Result + // + // Because we're extending the buffer with uninitialized data for trusted + // readers, we need to make sure to truncate that if any of this panics. ++#[cfg(feature="collections")] + fn read_to_end(r: &mut R, buf: &mut Vec) -> Result { + let start_len = buf.len(); + let mut g = Guard { len: buf.len(), buf: buf }; +@@ -466,8 +451,6 @@ fn read_to_end(r: &mut R, buf: &mut Vec) -> Result + /// [`BufReader`]: struct.BufReader.html + /// [`&str`]: ../../std/primitive.str.html + /// [slice]: ../../std/primitive.slice.html +-#[stable(feature = "rust1", since = "1.0.0")] +-#[doc(spotlight)] + pub trait Read { + /// Pull some bytes from this source into the specified buffer, returning + /// how many bytes were read. +@@ -523,7 +506,6 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn read(&mut self, buf: &mut [u8]) -> Result; + + /// Determines if this `Read`er can work with buffers of uninitialized +@@ -548,7 +530,6 @@ pub trait Read { + /// + /// [`Initializer::nop()`]: ../../std/io/struct.Initializer.html#method.nop + /// [`Initializer`]: ../../std/io/struct.Initializer.html +- #[unstable(feature = "read_initializer", issue = "42788")] + #[inline] + unsafe fn initializer(&self) -> Initializer { + Initializer::zeroing() +@@ -596,7 +577,7 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] ++ #[cfg(feature="collections")] + fn read_to_end(&mut self, buf: &mut Vec) -> Result { + read_to_end(self, buf) + } +@@ -634,7 +615,7 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] ++ #[cfg(feature="collections")] + fn read_to_string(&mut self, buf: &mut String) -> Result { + // Note that we do *not* call `.read_to_end()` here. We are passing + // `&mut Vec` (the raw contents of `buf`) into the `read_to_end` +@@ -697,7 +678,6 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "read_exact", since = "1.6.0")] + fn read_exact(&mut self, mut buf: &mut [u8]) -> Result<()> { + while !buf.is_empty() { + match self.read(buf) { +@@ -749,7 +729,6 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn by_ref(&mut self) -> &mut Self where Self: Sized { self } + + /// Transforms this `Read` instance to an [`Iterator`] over its bytes. +@@ -786,7 +765,6 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn bytes(self) -> Bytes where Self: Sized { + Bytes { inner: self } + } +@@ -827,10 +805,6 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[unstable(feature = "io", reason = "the semantics of a partial read/write \ +- of where errors happen is currently \ +- unclear and may change", +- issue = "27802")] + fn chars(self) -> Chars where Self: Sized { + Chars { inner: self } + } +@@ -865,7 +839,6 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn chain(self, next: R) -> Chain where Self: Sized { + Chain { first: self, second: next, done_first: false } + } +@@ -901,20 +874,17 @@ pub trait Read { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn take(self, limit: u64) -> Take where Self: Sized { + Take { inner: self, limit: limit } + } + } + + /// A type used to conditionally initialize buffers passed to `Read` methods. +-#[unstable(feature = "read_initializer", issue = "42788")] + #[derive(Debug)] + pub struct Initializer(bool); + + impl Initializer { + /// Returns a new `Initializer` which will zero out buffers. +- #[unstable(feature = "read_initializer", issue = "42788")] + #[inline] + pub fn zeroing() -> Initializer { + Initializer(true) +@@ -928,21 +898,18 @@ impl Initializer { + /// read from buffers passed to `Read` methods, and that the return value of + /// the method accurately reflects the number of bytes that have been + /// written to the head of the buffer. +- #[unstable(feature = "read_initializer", issue = "42788")] + #[inline] + pub unsafe fn nop() -> Initializer { + Initializer(false) + } + + /// Indicates if a buffer should be initialized. +- #[unstable(feature = "read_initializer", issue = "42788")] + #[inline] + pub fn should_initialize(&self) -> bool { + self.0 + } + + /// Initializes a buffer if necessary. +- #[unstable(feature = "read_initializer", issue = "42788")] + #[inline] + pub fn initialize(&self, buf: &mut [u8]) { + if self.should_initialize() { +@@ -985,8 +952,6 @@ impl Initializer { + /// # Ok(()) + /// # } + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] +-#[doc(spotlight)] + pub trait Write { + /// Write a buffer into this object, returning how many bytes were written. + /// +@@ -1034,7 +999,6 @@ pub trait Write { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn write(&mut self, buf: &[u8]) -> Result; + + /// Flush this output stream, ensuring that all intermediately buffered +@@ -1060,7 +1024,6 @@ pub trait Write { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn flush(&mut self) -> Result<()>; + + /// Attempts to write an entire buffer into this write. +@@ -1093,7 +1056,6 @@ pub trait Write { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn write_all(&mut self, mut buf: &[u8]) -> Result<()> { + while !buf.is_empty() { + match self.write(buf) { +@@ -1145,7 +1107,6 @@ pub trait Write { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn write_fmt(&mut self, fmt: fmt::Arguments) -> Result<()> { + // Create a shim which translates a Write to a fmt::Write and saves + // off I/O errors. instead of discarding them +@@ -1201,7 +1162,6 @@ pub trait Write { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn by_ref(&mut self) -> &mut Self where Self: Sized { self } + } + +@@ -1231,7 +1191,6 @@ pub trait Write { + /// # Ok(()) + /// # } + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub trait Seek { + /// Seek to an offset, in bytes, in a stream. + /// +@@ -1247,7 +1206,6 @@ pub trait Seek { + /// Seeking to a negative offset is considered an error. + /// + /// [`SeekFrom::Start`]: enum.SeekFrom.html#variant.Start +- #[stable(feature = "rust1", since = "1.0.0")] + fn seek(&mut self, pos: SeekFrom) -> Result; + } + +@@ -1257,29 +1215,26 @@ pub trait Seek { + /// + /// [`Seek`]: trait.Seek.html + #[derive(Copy, PartialEq, Eq, Clone, Debug)] +-#[stable(feature = "rust1", since = "1.0.0")] + pub enum SeekFrom { + /// Set the offset to the provided number of bytes. +- #[stable(feature = "rust1", since = "1.0.0")] +- Start(#[stable(feature = "rust1", since = "1.0.0")] u64), ++ Start(u64), + + /// Set the offset to the size of this object plus the specified number of + /// bytes. + /// + /// It is possible to seek beyond the end of an object, but it's an error to + /// seek before byte 0. +- #[stable(feature = "rust1", since = "1.0.0")] +- End(#[stable(feature = "rust1", since = "1.0.0")] i64), ++ End(i64), + + /// Set the offset to the current position plus the specified number of + /// bytes. + /// + /// It is possible to seek beyond the end of an object, but it's an error to + /// seek before byte 0. +- #[stable(feature = "rust1", since = "1.0.0")] +- Current(#[stable(feature = "rust1", since = "1.0.0")] i64), ++ Current(i64), + } + ++#[cfg(feature="collections")] + fn read_until(r: &mut R, delim: u8, buf: &mut Vec) + -> Result { + let mut read = 0; +@@ -1359,7 +1314,7 @@ fn read_until(r: &mut R, delim: u8, buf: &mut Vec) + /// # } + /// ``` + /// +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + pub trait BufRead: Read { + /// Fills the internal buffer of this object, returning the buffer contents. + /// +@@ -1404,7 +1359,6 @@ pub trait BufRead: Read { + /// // ensure the bytes we worked with aren't returned again later + /// stdin.consume(length); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn fill_buf(&mut self) -> Result<&[u8]>; + + /// Tells this buffer that `amt` bytes have been consumed from the buffer, +@@ -1426,7 +1380,6 @@ pub trait BufRead: Read { + /// that method's example includes an example of `consume()`. + /// + /// [`fill_buf`]: #tymethod.fill_buf +- #[stable(feature = "rust1", since = "1.0.0")] + fn consume(&mut self, amt: usize); + + /// Read all bytes into `buf` until the delimiter `byte` or EOF is reached. +@@ -1482,7 +1435,6 @@ pub trait BufRead: Read { + /// assert_eq!(num_bytes, 0); + /// assert_eq!(buf, b""); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn read_until(&mut self, byte: u8, buf: &mut Vec) -> Result { + read_until(self, byte, buf) + } +@@ -1541,7 +1493,6 @@ pub trait BufRead: Read { + /// assert_eq!(num_bytes, 0); + /// assert_eq!(buf, ""); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn read_line(&mut self, buf: &mut String) -> Result { + // Note that we are not calling the `.read_until` method here, but + // rather our hardcoded implementation. For more details as to why, see +@@ -1582,7 +1533,6 @@ pub trait BufRead: Read { + /// assert_eq!(split_iter.next(), Some(b"dolor".to_vec())); + /// assert_eq!(split_iter.next(), None); + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + fn split(self, byte: u8) -> Split where Self: Sized { + Split { buf: self, delim: byte } + } +@@ -1621,7 +1571,6 @@ pub trait BufRead: Read { + /// Each line of the iterator has the same error semantics as [`BufRead::read_line`]. + /// + /// [`BufRead::read_line`]: trait.BufRead.html#method.read_line +- #[stable(feature = "rust1", since = "1.0.0")] + fn lines(self) -> Lines where Self: Sized { + Lines { buf: self } + } +@@ -1633,7 +1582,6 @@ pub trait BufRead: Read { + /// Please see the documentation of [`chain`] for more details. + /// + /// [`chain`]: trait.Read.html#method.chain +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct Chain { + first: T, + second: U, +@@ -1659,7 +1607,6 @@ impl Chain { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "more_io_inner_methods", since = "1.20.0")] + pub fn into_inner(self) -> (T, U) { + (self.first, self.second) + } +@@ -1682,7 +1629,6 @@ impl Chain { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "more_io_inner_methods", since = "1.20.0")] + pub fn get_ref(&self) -> (&T, &U) { + (&self.first, &self.second) + } +@@ -1709,13 +1655,11 @@ impl Chain { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "more_io_inner_methods", since = "1.20.0")] + pub fn get_mut(&mut self) -> (&mut T, &mut U) { + (&mut self.first, &mut self.second) + } + } + +-#[stable(feature = "std_debug", since = "1.16.0")] + impl fmt::Debug for Chain { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + f.debug_struct("Chain") +@@ -1725,7 +1669,6 @@ impl fmt::Debug for Chain { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Read for Chain { + fn read(&mut self, buf: &mut [u8]) -> Result { + if !self.done_first { +@@ -1747,7 +1690,7 @@ impl Read for Chain { + } + } + +-#[stable(feature = "chain_bufread", since = "1.9.0")] ++#[cfg(feature="collections")] + impl BufRead for Chain { + fn fill_buf(&mut self) -> Result<&[u8]> { + if !self.done_first { +@@ -1774,7 +1717,6 @@ impl BufRead for Chain { + /// Please see the documentation of [`take`] for more details. + /// + /// [`take`]: trait.Read.html#method.take +-#[stable(feature = "rust1", since = "1.0.0")] + #[derive(Debug)] + pub struct Take { + inner: T, +@@ -1809,7 +1751,6 @@ impl Take { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "rust1", since = "1.0.0")] + pub fn limit(&self) -> u64 { self.limit } + + /// Sets the number of bytes that can be read before this instance will +@@ -1836,7 +1777,6 @@ impl Take { + /// # Ok(()) + /// # } + /// ``` +- #[unstable(feature = "take_set_limit", issue = "42781")] + pub fn set_limit(&mut self, limit: u64) { + self.limit = limit; + } +@@ -1861,7 +1801,6 @@ impl Take { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "io_take_into_inner", since = "1.15.0")] + pub fn into_inner(self) -> T { + self.inner + } +@@ -1886,7 +1825,6 @@ impl Take { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "more_io_inner_methods", since = "1.20.0")] + pub fn get_ref(&self) -> &T { + &self.inner + } +@@ -1915,13 +1853,11 @@ impl Take { + /// # Ok(()) + /// # } + /// ``` +- #[stable(feature = "more_io_inner_methods", since = "1.20.0")] + pub fn get_mut(&mut self) -> &mut T { + &mut self.inner + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Read for Take { + fn read(&mut self, buf: &mut [u8]) -> Result { + // Don't call into inner reader at all at EOF because it may still block +@@ -1940,7 +1876,7 @@ impl Read for Take { + } + } + +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl BufRead for Take { + fn fill_buf(&mut self) -> Result<&[u8]> { + // Don't call into inner reader at all at EOF because it may still block +@@ -1979,13 +1915,11 @@ fn read_one_byte(reader: &mut Read) -> Option> { + /// Please see the documentation of [`bytes`] for more details. + /// + /// [`bytes`]: trait.Read.html#method.bytes +-#[stable(feature = "rust1", since = "1.0.0")] + #[derive(Debug)] + pub struct Bytes { + inner: R, + } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Iterator for Bytes { + type Item = Result; + +@@ -2000,8 +1934,6 @@ impl Iterator for Bytes { + /// Please see the documentation of `chars()` for more details. + /// + /// [chars]: trait.Read.html#method.chars +-#[unstable(feature = "io", reason = "awaiting stability of Read::chars", +- issue = "27802")] + #[derive(Debug)] + pub struct Chars { + inner: R, +@@ -2010,8 +1942,6 @@ pub struct Chars { + /// An enumeration of possible errors that can be generated from the `Chars` + /// adapter. + #[derive(Debug)] +-#[unstable(feature = "io", reason = "awaiting stability of Read::chars", +- issue = "27802")] + pub enum CharsError { + /// Variant representing that the underlying stream was read successfully + /// but it did not contain valid utf8 data. +@@ -2021,8 +1951,6 @@ pub enum CharsError { + Other(Error), + } + +-#[unstable(feature = "io", reason = "awaiting stability of Read::chars", +- issue = "27802")] + impl Iterator for Chars { + type Item = result::Result; + +@@ -2053,25 +1981,6 @@ impl Iterator for Chars { + } + } + +-#[unstable(feature = "io", reason = "awaiting stability of Read::chars", +- issue = "27802")] +-impl std_error::Error for CharsError { +- fn description(&self) -> &str { +- match *self { +- CharsError::NotUtf8 => "invalid utf8 encoding", +- CharsError::Other(ref e) => std_error::Error::description(e), +- } +- } +- fn cause(&self) -> Option<&std_error::Error> { +- match *self { +- CharsError::NotUtf8 => None, +- CharsError::Other(ref e) => e.cause(), +- } +- } +-} +- +-#[unstable(feature = "io", reason = "awaiting stability of Read::chars", +- issue = "27802")] + impl fmt::Display for CharsError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + match *self { +@@ -2090,14 +1999,14 @@ impl fmt::Display for CharsError { + /// `BufRead`. Please see the documentation of `split()` for more details. + /// + /// [split]: trait.BufRead.html#method.split +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + #[derive(Debug)] + pub struct Split { + buf: B, + delim: u8, + } + +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl Iterator for Split { + type Item = Result>; + +@@ -2122,13 +2031,13 @@ impl Iterator for Split { + /// `BufRead`. Please see the documentation of `lines()` for more details. + /// + /// [lines]: trait.BufRead.html#method.lines +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + #[derive(Debug)] + pub struct Lines { + buf: B, + } + +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl Iterator for Lines { + type Item = Result; + +diff --git a/prelude.rs b/prelude.rs +index 8772d0f..49d66c9 100644 +--- a/prelude.rs ++++ b/prelude.rs +@@ -18,7 +18,8 @@ + //! use std::io::prelude::*; + //! ``` + +-#![stable(feature = "rust1", since = "1.0.0")] ++pub use super::{Read, Write, Seek}; ++#[cfg(feature="collections")] pub use super::BufRead; + +-#[stable(feature = "rust1", since = "1.0.0")] +-pub use super::{Read, Write, BufRead, Seek}; ++#[cfg(feature="collections")] pub use alloc::boxed::Box; ++#[cfg(feature="collections")] pub use collections::vec::Vec; +diff --git a/util.rs b/util.rs +index 45d281e..37aa1aa 100644 +--- a/util.rs ++++ b/util.rs +@@ -10,9 +10,11 @@ + + #![allow(missing_copy_implementations)] + +-use fmt; +-use io::{self, Read, Initializer, Write, ErrorKind, BufRead}; +-use mem; ++use core::fmt; ++use io::{self, Read, Initializer, Write, ErrorKind}; ++#[cfg(feature="collections")] use io::BufRead; ++ ++use core::mem; + + /// Copies the entire contents of a reader into a writer. + /// +@@ -45,7 +47,6 @@ use mem; + /// # } + /// # foo().unwrap(); + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub fn copy(reader: &mut R, writer: &mut W) -> io::Result + where R: Read, W: Write + { +@@ -74,7 +75,6 @@ pub fn copy(reader: &mut R, writer: &mut W) -> io::Result< + /// the documentation of [`empty()`][`empty`] for more details. + /// + /// [`empty`]: fn.empty.html +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct Empty { _priv: () } + + /// Constructs a new handle to an empty reader. +@@ -94,10 +94,8 @@ pub struct Empty { _priv: () } + /// io::empty().read_to_string(&mut buffer).unwrap(); + /// assert!(buffer.is_empty()); + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub fn empty() -> Empty { Empty { _priv: () } } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Read for Empty { + #[inline] + fn read(&mut self, _buf: &mut [u8]) -> io::Result { Ok(0) } +@@ -107,7 +105,7 @@ impl Read for Empty { + Initializer::nop() + } + } +-#[stable(feature = "rust1", since = "1.0.0")] ++#[cfg(feature="collections")] + impl BufRead for Empty { + #[inline] + fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) } +@@ -115,7 +113,6 @@ impl BufRead for Empty { + fn consume(&mut self, _n: usize) {} + } + +-#[stable(feature = "std_debug", since = "1.16.0")] + impl fmt::Debug for Empty { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + f.pad("Empty { .. }") +@@ -128,7 +125,6 @@ impl fmt::Debug for Empty { + /// see the documentation of `repeat()` for more details. + /// + /// [repeat]: fn.repeat.html +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct Repeat { byte: u8 } + + /// Creates an instance of a reader that infinitely repeats one byte. +@@ -145,10 +141,8 @@ pub struct Repeat { byte: u8 } + /// io::repeat(0b101).read_exact(&mut buffer).unwrap(); + /// assert_eq!(buffer, [0b101, 0b101, 0b101]); + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Read for Repeat { + #[inline] + fn read(&mut self, buf: &mut [u8]) -> io::Result { +@@ -164,7 +158,6 @@ impl Read for Repeat { + } + } + +-#[stable(feature = "std_debug", since = "1.16.0")] + impl fmt::Debug for Repeat { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + f.pad("Repeat { .. }") +@@ -177,7 +170,6 @@ impl fmt::Debug for Repeat { + /// see the documentation of `sink()` for more details. + /// + /// [sink]: fn.sink.html +-#[stable(feature = "rust1", since = "1.0.0")] + pub struct Sink { _priv: () } + + /// Creates an instance of a writer which will successfully consume all data. +@@ -194,10 +186,8 @@ pub struct Sink { _priv: () } + /// let num_bytes = io::sink().write(&buffer).unwrap(); + /// assert_eq!(num_bytes, 5); + /// ``` +-#[stable(feature = "rust1", since = "1.0.0")] + pub fn sink() -> Sink { Sink { _priv: () } } + +-#[stable(feature = "rust1", since = "1.0.0")] + impl Write for Sink { + #[inline] + fn write(&mut self, buf: &[u8]) -> io::Result { Ok(buf.len()) } +@@ -205,7 +195,6 @@ impl Write for Sink { + fn flush(&mut self) -> io::Result<()> { Ok(()) } + } + +-#[stable(feature = "std_debug", since = "1.16.0")] + impl fmt::Debug for Sink { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + f.pad("Sink { .. }") diff --git a/src/lib.rs b/src/lib.rs index 4121798..aed4244 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -3,7 +3,7 @@ //! the [std documentation](https://doc.rust-lang.org/nightly/std/io/index.html) //! for a full description of the functionality. #![allow(stable_features,unused_features)] -#![feature(question_mark,const_fn,collections,alloc,unicode,copy_from_slice,str_char,try_from,str_internals)] +#![feature(question_mark,const_fn,collections,alloc,unicode,copy_from_slice,str_char,try_from,str_internals,slice_internals)] #![no_std] #[cfg_attr(feature="collections",macro_use)]