Keep track of individual patches instead of patched source versions

.gitignore

@@ -1,2 +1,3 @@
 target
 Cargo.lock
+src/????????????????????????????????????????

Cargo.toml

@@ -14,6 +14,13 @@ selected automatically by the build script.
 repository = "https://github.com/jethrogb/rust-core_io"
 documentation = "https://doc.rust-lang.org/nightly/std/io/index.html"
 keywords = ["core", "no_std", "io", "read", "write"]
+include = [
+	"build.rs",
+	"Cargo.toml",
+	"LICENSE-*",
+	"mapping.rs",
+	"src/**/*.rs",
+]
 
 build = "build.rs"
 

README.md

@@ -8,43 +8,10 @@ First, make sure the commit you want to add is fetch in the git tree at
 `/your/rust/dir/.git`. Then, import the right source files:
 
 ```
-$ echo FULL_COMMIT_ID ...|GIT_DIR=/your/rust/dir/.git ./sync.sh
+$ echo FULL_COMMIT_ID ...|GIT_DIR=/your/rust/dir/.git ./build-src.sh
 ```
 
 Instead of echoing in the commit IDs, you might pipe in `rustc-commit-db
 list-valid`.
 
-Now look at the changes with `git status`. If nothing changed then the commit
+The build-src script will prompt you to create patches for new commits.
-you tried to add was already there. Otherwise commit all changes and new files
-now. If only `mapping.rs` changed, the I/O code has not changed for this
-particular commit. If a directory in `src/` was added, after committing, `cd`
-into it to apply the patch.
-
-Find out which previously-existing commit is closest to the new one and search
-this git repository for a commit with the description `Patch COMMIT for core`.
-For example, if you're adding dd56a6ad0845b76509c4f8967e8ca476471ab7e0, the
-best closest commit is 80d733385aa2ff150a5d6f83ecfe55afc7e19e68.
-
-```
-$ git log --pretty=oneline --grep=80d733385aa2ff150a5d6f83ecfe55afc7e19e68
-92fc0ad81c432b5fa3e848fc1892815ca2f55100 Patch 80d733385aa2ff150a5d6f83ecfe55afc7e19e68 for core
-```
-
-The commit ID at the start of the line is the patch we'll try to apply:
-
-```sh
-$ git show 92fc0ad81c432b5fa3e848fc1892815ca2f55100|patch -p3
-$ cargo build
-```
-
-Now, fix any errors `cargo` reports. If `patch` also reported errors, you may
-look at the rejects for inspiration ;).
-
-Finally, commit this new version:
-
-```
-$ git commit -m "Patch dd56a6ad0845b76509c4f8967e8ca476471ab7e0 for core" .
-```
-
-Do not commit any files in different directories, this will break the patching
-scheme.

build-src.sh

@@ -0,0 +1,131 @@
+#!/bin/bash
+# Recommended command-line:
+#
+# commit-db.rb list-valid nightly|GIT_DIR=/your/rust/dir/.git sync.sh
+
+git_file_exists() {
+	[ "$(git ls-tree --name-only $IO_COMMIT -- $1)" = "$1" ]
+}
+
+git_extract() {
+	slashes=${1//[^\/]/}
+	git archive $IO_COMMIT $1|tar xf - -C src/$IO_COMMIT --strip-components=${#slashes}
+}
+
+git_commits_ordered() {
+	format=$1
+	shift
+	if [ $# -ge 1 ]; then
+		git log --topo-order --no-walk=sorted --date=iso-local --pretty=format:$format "$@"
+	fi
+}
+
+echo_lines() {
+	for i in "$@"; do
+		echo $i
+	done
+}
+
+get_io_commits() {
+	for COMPILER_COMMIT in $COMPILER_COMMITS; do
+		IO_COMMIT=$(git log -n1 --pretty=format:%H $COMPILER_COMMIT -- src/libstd/io)
+		if ! grep -q $COMPILER_COMMIT mapping.rs; then
+			echo "-Mapping(\"$COMPILER_COMMIT\",\"$IO_COMMIT\")" >> mapping.rs
+		fi
+		echo $IO_COMMIT
+	done
+}
+
+get_patch_commits() {
+	find $PATCH_DIR -type f -printf %f\\n|cut -d. -f1
+}
+
+prepare_version() {
+	mkdir src/$IO_COMMIT
+	git_extract src/libstd/io/
+	if git_file_exists src/libstd/sys/common/memchr.rs; then
+		git_extract src/libstd/sys/common/memchr.rs
+	else
+		git_extract src/libstd/memchr.rs
+	fi
+	rm -f src/$IO_COMMIT/stdio.rs src/$IO_COMMIT/lazy.rs
+}
+
+bold_arrow() {
+	echo -ne '\e[1;36m==> \e[0m'
+}
+
+prompt_changes() {
+	local MAIN_GIT_DIR="$GIT_DIR"
+	local GIT_DIR=./.git CORE_IO_COMMIT=$IO_COMMIT
+	git init > /dev/null
+	git add .
+	git commit -a -m "rust src import" > /dev/null
+	export CORE_IO_COMMIT
+	
+	bold_arrow; echo 'No patch found for' $IO_COMMIT
+	bold_arrow; echo 'Nearby commit(s) with patches:'
+	echo
+	GIT_DIR="$MAIN_GIT_DIR" git_commits_ordered '%H %cd' $(get_patch_commits) $IO_COMMIT | \
+	grep --color=always -1 $IO_COMMIT | sed /$IO_COMMIT/'s/$/ <=== your commit/'
+	echo
+	bold_arrow; echo -e "Try applying one of those using: \e[1;36mpatch -p1 < ../../patches/COMMIT.patch\e[0m"
+	bold_arrow; echo -e "Remember to test your changes with: \e[1;36mcargo build\e[0m"
+	bold_arrow; echo -e "Make your changes now (\e[1;36mctrl-D\e[0m when finished)"
+	bash <> /dev/stderr
+	while git diff --exit-code > /dev/null; do
+		bold_arrow; echo "No changes were made"
+		while true; do
+			bold_arrow; echo -n "(T)ry again or (A)bort? "
+			read answer <> /dev/stderr
+			case "$answer" in
+				[tT])
+					break
+					;;
+				[aA])
+					bold_arrow; echo "Aborting..."
+					exit 1
+					;;
+			esac
+		done
+		bash <> /dev/stderr
+	done
+	bold_arrow; echo "Saving changes as $IO_COMMIT.patch"
+	git clean -f -x
+	git diff > ../../patches/$IO_COMMIT.patch
+	rm -rf .git
+}
+
+if [ ! -t 1 ] || [ ! -t 2 ]; then
+	echo "==> /dev/stdout or /dev/stderr is not attached to a terminal!"
+	echo "==> This script must be run interactively."
+	exit 1
+fi
+
+cd "$(dirname "$0")"
+PATCH_DIR="$PWD/patches"
+COMPILER_COMMITS=$(cat)
+IO_COMMITS=$(get_io_commits|sort -u)
+PATCH_COMMITS=$(get_patch_commits|sort -u)
+NEW_COMMITS=$(comm -2 -3 <(echo_lines $IO_COMMITS) <(echo_lines $PATCH_COMMITS))
+OLD_COMMITS=$(comm -1 -2 <(echo_lines $IO_COMMITS) <(echo_lines $PATCH_COMMITS))
+
+find src -mindepth 1 -type d -prune -exec rm -rf {} \;
+
+for IO_COMMIT in $OLD_COMMITS $(git_commits_ordered %H $NEW_COMMITS|tac); do
+	if ! [ -d src/$IO_COMMIT ]; then
+		prepare_version
+		
+		if [ -f patches/$IO_COMMIT.patch ]; then
+			patch -s -p1 -d src/$IO_COMMIT < patches/$IO_COMMIT.patch
+		else
+			cd src/$IO_COMMIT
+			prompt_changes
+			cd ../..
+		fi
+	fi
+done
+
+chmod 000 .git
+cargo package
+chmod 755 .git

src/0f02309e4b0ea05ee905205278fb6d131341c41f/cursor.rs

@@ -1,570 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-    use vec::Vec;
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/0f02309e4b0ea05ee905205278fb6d131341c41f/error.rs

@@ -1,314 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// `ErrorKind`.
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// Any I/O error not part of this list.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use prelude::v1::*;
-    use super::{Error, ErrorKind};
-    use error;
-    use error::Error as error_Error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/0f02309e4b0ea05ee905205278fb6d131341c41f/impls.rs

@@ -1,289 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use vec::Vec;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/0f02309e4b0ea05ee905205278fb6d131341c41f/memchr.rs

@@ -1,297 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = len - cmp::min(usize_bytes - end_align, len);
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all plattforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}

src/0f02309e4b0ea05ee905205278fb6d131341c41f/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/0f02309e4b0ea05ee905205278fb6d131341c41f/util.rs

@@ -1,191 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io;
-/// use std::io::Read;
-///
-/// # fn foo() -> io::Result<String> {
-/// let mut buffer = String::new();
-/// try!(io::empty().read_to_string(&mut buffer));
-/// # Ok(buffer)
-/// # }
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use prelude::v1::*;
-
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/117cbb879e6ef498ea04e08bd80688bf2fc4a183/cursor.rs

@@ -1,571 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/117cbb879e6ef498ea04e08bd80688bf2fc4a183/error.rs

@@ -1,480 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// [`ErrorKind`].
-///
-/// [`ErrorKind`]: enum.ErrorKind.html
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-///
-/// It is used with the [`io::Error`] type.
-///
-/// [`io::Error`]: struct.Error.html
-#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// A marker variant that tells the compiler that users of this enum cannot
-    /// match it exhaustively.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    ///
-    /// # Examples
-    ///
-    /// On Linux:
-    ///
-    /// ```
-    /// # if cfg!(target_os = "linux") {
-    /// use std::io;
-    ///
-    /// let error = io::Error::from_raw_os_error(98);
-    /// assert_eq!(error.kind(), io::ErrorKind::AddrInUse);
-    /// # }
-    /// ```
-    ///
-    /// On Windows:
-    ///
-    /// ```
-    /// # if cfg!(windows) {
-    /// use std::io;
-    ///
-    /// let error = io::Error::from_raw_os_error(10048);
-    /// assert_eq!(error.kind(), io::ErrorKind::AddrInUse);
-    /// # }
-    /// ```
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_os_error(err: &Error) {
-    ///     if let Some(raw_os_err) = err.raw_os_error() {
-    ///         println!("raw OS error: {:?}", raw_os_err);
-    ///     } else {
-    ///         println!("Not an OS error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "raw OS error: ...".
-    ///     print_os_error(&Error::last_os_error());
-    ///     // Will print "Not an OS error".
-    ///     print_os_error(&Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: &Error) {
-    ///     if let Some(inner_err) = err.get_ref() {
-    ///         println!("Inner error: {:?}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(&Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(&Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    /// use std::{error, fmt};
-    /// use std::fmt::Display;
-    ///
-    /// #[derive(Debug)]
-    /// struct MyError {
-    ///     v: String,
-    /// }
-    ///
-    /// impl MyError {
-    ///     fn new() -> MyError {
-    ///         MyError {
-    ///             v: "oh no!".to_owned()
-    ///         }
-    ///     }
-    ///
-    ///     fn change_message(&mut self, new_message: &str) {
-    ///         self.v = new_message.to_owned();
-    ///     }
-    /// }
-    ///
-    /// impl error::Error for MyError {
-    ///     fn description(&self) -> &str { &self.v }
-    /// }
-    ///
-    /// impl Display for MyError {
-    ///     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-    ///         write!(f, "MyError: {}", &self.v)
-    ///     }
-    /// }
-    ///
-    /// fn change_error(mut err: Error) -> Error {
-    ///     if let Some(inner_err) = err.get_mut() {
-    ///         inner_err.downcast_mut::<MyError>().unwrap().change_message("I've been changed!");
-    ///     }
-    ///     err
-    /// }
-    ///
-    /// fn print_error(err: &Error) {
-    ///     if let Some(inner_err) = err.get_ref() {
-    ///         println!("Inner error: {}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(&change_error(Error::last_os_error()));
-    ///     // Will print "Inner error: ...".
-    ///     print_error(&change_error(Error::new(ErrorKind::Other, MyError::new())));
-    /// }
-    /// ```
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: Error) {
-    ///     if let Some(inner_err) = err.into_inner() {
-    ///         println!("Inner error: {}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: Error) {
-    ///     println!("{:?}", err.kind());
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(Error::new(ErrorKind::AddrInUse, "oh no!"));
-    /// }
-    /// ```
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use super::{Error, ErrorKind};
-    use error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/117cbb879e6ef498ea04e08bd80688bf2fc4a183/impls.rs

@@ -1,288 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/117cbb879e6ef498ea04e08bd80688bf2fc4a183/memchr.rs

@@ -1,319 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = if end_align >= len { 0 } else { len - end_align };
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all platforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn each_alignment_reversed() {
-        let mut data = [1u8; 64];
-        let needle = 2;
-        let pos = 40;
-        data[pos] = needle;
-        for start in 0..16 {
-            assert_eq!(Some(pos - start), memrchr(needle, &data[start..]));
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn each_alignment() {
-        let mut data = [1u8; 64];
-        let needle = 2;
-        let pos = 40;
-        data[pos] = needle;
-        for start in 0..16 {
-            assert_eq!(Some(pos - start), memchr(needle, &data[start..]));
-        }
-    }
-}

src/117cbb879e6ef498ea04e08bd80688bf2fc4a183/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/117cbb879e6ef498ea04e08bd80688bf2fc4a183/util.rs

@@ -1,206 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io::{self, Read};
-///
-/// let mut buffer = String::new();
-/// io::empty().read_to_string(&mut buffer).unwrap();
-/// assert!(buffer.is_empty());
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-///
-/// # Examples
-///
-/// ```
-/// use std::io::{self, Read};
-///
-/// let mut buffer = [0; 3];
-/// io::repeat(0b101).read_exact(&mut buffer).unwrap();
-/// assert_eq!(buffer, [0b101, 0b101, 0b101]);
-/// ```
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-///
-/// # Examples
-///
-/// ```rust
-/// use std::io::{self, Write};
-///
-/// let buffer = vec![1, 2, 3, 5, 8];
-/// let num_bytes = io::sink().write(&buffer).unwrap();
-/// assert_eq!(num_bytes, 5);
-/// ```
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/161c541afdd18423940e97c7a02b517b1f6d61be/cursor.rs

@@ -1,570 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-    use vec::Vec;
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/161c541afdd18423940e97c7a02b517b1f6d61be/error.rs

@@ -1,314 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// `ErrorKind`.
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// Any I/O error not part of this list.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use prelude::v1::*;
-    use super::{Error, ErrorKind};
-    use error;
-    use error::Error as error_Error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/161c541afdd18423940e97c7a02b517b1f6d61be/impls.rs

@@ -1,289 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use vec::Vec;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/161c541afdd18423940e97c7a02b517b1f6d61be/memchr.rs

@@ -1,297 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = len - cmp::min(usize_bytes - end_align, len);
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all plattforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}

src/161c541afdd18423940e97c7a02b517b1f6d61be/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/161c541afdd18423940e97c7a02b517b1f6d61be/util.rs

@@ -1,191 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io;
-/// use std::io::Read;
-///
-/// # fn foo() -> io::Result<String> {
-/// let mut buffer = String::new();
-/// try!(io::empty().read_to_string(&mut buffer));
-/// # Ok(buffer)
-/// # }
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use prelude::v1::*;
-
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/1f9036872d7ea8bee91f8588e3c4a613c58c76cb/cursor.rs

@@ -1,594 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use io::prelude::*;
-
-use core::convert::TryInto;
-use cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     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<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// 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.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// 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.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// 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.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// 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.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// 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<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos: usize = self.position().try_into().map_err(|_| {
-            Error::new(ErrorKind::InvalidInput,
-                       "cursor position exceeds maximum possible vector length")
-        })?;
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let len = self.inner.len();
-        if len < pos {
-            // use `resize` so that the zero filling is as efficient as possible
-            self.inner.resize(pos, 0);
-        }
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position((pos + buf.len()) as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[stable(feature = "cursor_box_slice", since = "1.5.0")]
-impl Write for Cursor<Box<[u8]>> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    #[cfg(target_pointer_width = "32")]
-    fn vec_seek_and_write_past_usize_max() {
-        let mut c = Cursor::new(Vec::new());
-        c.set_position(<usize>::max_value() as u64 + 1);
-        assert!(c.write_all(&[1, 2, 3]).is_err());
-    }
-}

src/1f9036872d7ea8bee91f8588e3c4a613c58c76cb/error.rs

@@ -1,562 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use error;
-use fmt;
-use result;
-use sys;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-#[stable(feature = "rust1", since = "1.0.0")]
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// [`ErrorKind`].
-///
-/// [`ErrorKind`]: enum.ErrorKind.html
-#[derive(Debug)]
-#[stable(feature = "rust1", since = "1.0.0")]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    Custom(Box<Custom>),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: Box<error::Error+Send+Sync>,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-///
-/// It is used with the [`io::Error`] type.
-///
-/// [`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.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    #[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)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    #[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
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // 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<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<Box<error::Error+Send+Sync>>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: Box<error::Error+Send+Sync>) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: 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
-    ///
-    /// On Linux:
-    ///
-    /// ```
-    /// # if cfg!(target_os = "linux") {
-    /// use std::io;
-    ///
-    /// let error = io::Error::from_raw_os_error(98);
-    /// assert_eq!(error.kind(), io::ErrorKind::AddrInUse);
-    /// # }
-    /// ```
-    ///
-    /// On Windows:
-    ///
-    /// ```
-    /// # if cfg!(windows) {
-    /// use std::io;
-    ///
-    /// let error = io::Error::from_raw_os_error(10048);
-    /// assert_eq!(error.kind(), io::ErrorKind::AddrInUse);
-    /// # }
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_os_error(err: &Error) {
-    ///     if let Some(raw_os_err) = err.raw_os_error() {
-    ///         println!("raw OS error: {:?}", raw_os_err);
-    ///     } else {
-    ///         println!("Not an OS error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "raw OS error: ...".
-    ///     print_os_error(&Error::last_os_error());
-    ///     // Will print "Not an OS error".
-    ///     print_os_error(&Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    #[stable(feature = "rust1", since = "1.0.0")]
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: &Error) {
-    ///     if let Some(inner_err) = err.get_ref() {
-    ///         println!("Inner error: {:?}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(&Error::last_os_error());
-    ///     // Will print "Inner 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)> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&*c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    /// use std::{error, fmt};
-    /// use std::fmt::Display;
-    ///
-    /// #[derive(Debug)]
-    /// struct MyError {
-    ///     v: String,
-    /// }
-    ///
-    /// impl MyError {
-    ///     fn new() -> MyError {
-    ///         MyError {
-    ///             v: "oh no!".to_owned()
-    ///         }
-    ///     }
-    ///
-    ///     fn change_message(&mut self, new_message: &str) {
-    ///         self.v = new_message.to_owned();
-    ///     }
-    /// }
-    ///
-    /// impl error::Error for MyError {
-    ///     fn description(&self) -> &str { &self.v }
-    /// }
-    ///
-    /// impl Display for MyError {
-    ///     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-    ///         write!(f, "MyError: {}", &self.v)
-    ///     }
-    /// }
-    ///
-    /// fn change_error(mut err: Error) -> Error {
-    ///     if let Some(inner_err) = err.get_mut() {
-    ///         inner_err.downcast_mut::<MyError>().unwrap().change_message("I've been changed!");
-    ///     }
-    ///     err
-    /// }
-    ///
-    /// fn print_error(err: &Error) {
-    ///     if let Some(inner_err) = err.get_ref() {
-    ///         println!("Inner error: {}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(&change_error(Error::last_os_error()));
-    ///     // Will print "Inner 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)> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut *c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: Error) {
-    ///     if let Some(inner_err) = err.into_inner() {
-    ///         println!("Inner error: {}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    #[stable(feature = "io_error_inner", since = "1.3.0")]
-    pub fn into_inner(self) -> Option<Box<error::Error+Send+Sync>> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: Error) {
-    ///     println!("{:?}", err.kind());
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(Error::last_os_error());
-    ///     // Will print "Inner 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::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code)
-                   .field("message", &sys::os::error_string(*code)).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).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)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        match self.repr {
-            Repr::Os(..) => match self.kind() {
-                ErrorKind::NotFound => "entity not found",
-                ErrorKind::PermissionDenied => "permission denied",
-                ErrorKind::ConnectionRefused => "connection refused",
-                ErrorKind::ConnectionReset => "connection reset",
-                ErrorKind::ConnectionAborted => "connection aborted",
-                ErrorKind::NotConnected => "not connected",
-                ErrorKind::AddrInUse => "address in use",
-                ErrorKind::AddrNotAvailable => "address not available",
-                ErrorKind::BrokenPipe => "broken pipe",
-                ErrorKind::AlreadyExists => "entity already exists",
-                ErrorKind::WouldBlock => "operation would block",
-                ErrorKind::InvalidInput => "invalid input parameter",
-                ErrorKind::InvalidData => "invalid data",
-                ErrorKind::TimedOut => "timed out",
-                ErrorKind::WriteZero => "write zero",
-                ErrorKind::Interrupted => "operation interrupted",
-                ErrorKind::Other => "other os error",
-                ErrorKind::UnexpectedEof => "unexpected end of file",
-                ErrorKind::__Nonexhaustive => unreachable!()
-            },
-            Repr::Custom(ref c) => c.error.description(),
-        }
-    }
-
-    fn cause(&self) -> Option<&error::Error> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => c.error.cause(),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use super::{Error, ErrorKind};
-    use error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/1f9036872d7ea8bee91f8588e3c4a613c58c76cb/impls.rs

@@ -1,285 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use cmp;
-use io::{self, SeekFrom, Read, Write, Seek, BufRead, Error, ErrorKind};
-use fmt;
-use mem;
-
-// =============================================================================
-// 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<usize> {
-        (**self).read(buf)
-    }
-
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**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<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**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<u64> { (**self).seek(pos) }
-}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<'a, B: BufRead + ?Sized> BufRead for &'a mut B {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[stable(feature = "rust1", since = "1.0.0")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/1f9036872d7ea8bee91f8588e3c4a613c58c76cb/memchr.rs

@@ -1,143 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-/// A safe interface to `memchr`.
-///
-/// Returns the index corresponding to the first occurrence of `needle` in
-/// `haystack`, or `None` if one is not found.
-///
-/// memchr reduces to super-optimized machine code at around an order of
-/// magnitude faster than `haystack.iter().position(|&b| b == needle)`.
-/// (See benchmarks.)
-///
-/// # Example
-///
-/// This shows how to find the first position of a byte in a byte string.
-///
-/// ```rust,ignore
-/// use memchr::memchr;
-///
-/// let haystack = b"the quick brown fox";
-/// assert_eq!(memchr(b'k', haystack), Some(8));
-/// ```
-#[inline]
-pub fn memchr(needle: u8, haystack: &[u8]) -> Option<usize> {
-    ::sys::memchr::memchr(needle, haystack)
-}
-
-/// A safe interface to `memrchr`.
-///
-/// Returns the index corresponding to the last occurrence of `needle` in
-/// `haystack`, or `None` if one is not found.
-///
-/// # Example
-///
-/// This shows how to find the last position of a byte in a byte string.
-///
-/// ```rust,ignore
-/// use memchr::memrchr;
-///
-/// let haystack = b"the quick brown fox";
-/// assert_eq!(memrchr(b'o', haystack), Some(17));
-/// ```
-#[inline]
-pub fn memrchr(needle: u8, haystack: &[u8]) -> Option<usize> {
-    ::sys::memchr::memrchr(needle, haystack)
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn each_alignment() {
-        let mut data = [1u8; 64];
-        let needle = 2;
-        let pos = 40;
-        data[pos] = needle;
-        for start in 0..16 {
-            assert_eq!(Some(pos - start), memchr(needle, &data[start..]));
-        }
-    }
-}

src/1f9036872d7ea8bee91f8588e3c4a613c58c76cb/prelude.rs

@@ -1,24 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-#[stable(feature = "rust1", since = "1.0.0")]
-pub use super::{Read, Write, BufRead, Seek};

src/1f9036872d7ea8bee91f8588e3c4a613c58c76cb/util.rs

@@ -1,215 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind, BufRead};
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-#[stable(feature = "rust1", since = "1.0.0")]
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `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.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io::{self, Read};
-///
-/// let mut buffer = String::new();
-/// 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 {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// 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.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-///
-/// # Examples
-///
-/// ```
-/// use std::io::{self, Read};
-///
-/// let mut buffer = [0; 3];
-/// 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 {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// 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.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-///
-/// # Examples
-///
-/// ```rust
-/// use std::io::{self, Write};
-///
-/// let buffer = vec![1, 2, 3, 5, 8];
-/// 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 {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/26f9949bf678abc1fae595e3f6eb59a5bf8a7564/cursor.rs

@@ -1,571 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/26f9949bf678abc1fae595e3f6eb59a5bf8a7564/error.rs

@@ -1,480 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// [`ErrorKind`].
-///
-/// [`ErrorKind`]: enum.ErrorKind.html
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-///
-/// It is used with the [`io::Error`] type.
-///
-/// [`io::Error`]: struct.Error.html
-#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// A marker variant that tells the compiler that users of this enum cannot
-    /// match it exhaustively.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    ///
-    /// # Examples
-    ///
-    /// On Linux:
-    ///
-    /// ```
-    /// # if cfg!(target_os = "linux") {
-    /// use std::io;
-    ///
-    /// let error = io::Error::from_raw_os_error(98);
-    /// assert_eq!(error.kind(), io::ErrorKind::AddrInUse);
-    /// # }
-    /// ```
-    ///
-    /// On Windows:
-    ///
-    /// ```
-    /// # if cfg!(windows) {
-    /// use std::io;
-    ///
-    /// let error = io::Error::from_raw_os_error(10048);
-    /// assert_eq!(error.kind(), io::ErrorKind::AddrInUse);
-    /// # }
-    /// ```
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_os_error(err: &Error) {
-    ///     if let Some(raw_os_err) = err.raw_os_error() {
-    ///         println!("raw OS error: {:?}", raw_os_err);
-    ///     } else {
-    ///         println!("Not an OS error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "raw OS error: ...".
-    ///     print_os_error(&Error::last_os_error());
-    ///     // Will print "Not an OS error".
-    ///     print_os_error(&Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: &Error) {
-    ///     if let Some(inner_err) = err.get_ref() {
-    ///         println!("Inner error: {:?}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(&Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(&Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    /// use std::{error, fmt};
-    /// use std::fmt::Display;
-    ///
-    /// #[derive(Debug)]
-    /// struct MyError {
-    ///     v: String,
-    /// }
-    ///
-    /// impl MyError {
-    ///     fn new() -> MyError {
-    ///         MyError {
-    ///             v: "oh no!".to_owned()
-    ///         }
-    ///     }
-    ///
-    ///     fn change_message(&mut self, new_message: &str) {
-    ///         self.v = new_message.to_owned();
-    ///     }
-    /// }
-    ///
-    /// impl error::Error for MyError {
-    ///     fn description(&self) -> &str { &self.v }
-    /// }
-    ///
-    /// impl Display for MyError {
-    ///     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-    ///         write!(f, "MyError: {}", &self.v)
-    ///     }
-    /// }
-    ///
-    /// fn change_error(mut err: Error) -> Error {
-    ///     if let Some(inner_err) = err.get_mut() {
-    ///         inner_err.downcast_mut::<MyError>().unwrap().change_message("I've been changed!");
-    ///     }
-    ///     err
-    /// }
-    ///
-    /// fn print_error(err: &Error) {
-    ///     if let Some(inner_err) = err.get_ref() {
-    ///         println!("Inner error: {}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(&change_error(Error::last_os_error()));
-    ///     // Will print "Inner error: ...".
-    ///     print_error(&change_error(Error::new(ErrorKind::Other, MyError::new())));
-    /// }
-    /// ```
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: Error) {
-    ///     if let Some(inner_err) = err.into_inner() {
-    ///         println!("Inner error: {}", inner_err);
-    ///     } else {
-    ///         println!("No inner error");
-    ///     }
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(Error::new(ErrorKind::Other, "oh no!"));
-    /// }
-    /// ```
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// fn print_error(err: Error) {
-    ///     println!("{:?}", err.kind());
-    /// }
-    ///
-    /// fn main() {
-    ///     // Will print "No inner error".
-    ///     print_error(Error::last_os_error());
-    ///     // Will print "Inner error: ...".
-    ///     print_error(Error::new(ErrorKind::AddrInUse, "oh no!"));
-    /// }
-    /// ```
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use super::{Error, ErrorKind};
-    use error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/26f9949bf678abc1fae595e3f6eb59a5bf8a7564/impls.rs

@@ -1,288 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/26f9949bf678abc1fae595e3f6eb59a5bf8a7564/memchr.rs

@@ -1,319 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = if end_align >= len { 0 } else { len - end_align };
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all platforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn each_alignment_reversed() {
-        let mut data = [1u8; 64];
-        let needle = 2;
-        let pos = 40;
-        data[pos] = needle;
-        for start in 0..16 {
-            assert_eq!(Some(pos - start), memrchr(needle, &data[start..]));
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn each_alignment() {
-        let mut data = [1u8; 64];
-        let needle = 2;
-        let pos = 40;
-        data[pos] = needle;
-        for start in 0..16 {
-            assert_eq!(Some(pos - start), memchr(needle, &data[start..]));
-        }
-    }
-}

src/26f9949bf678abc1fae595e3f6eb59a5bf8a7564/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/26f9949bf678abc1fae595e3f6eb59a5bf8a7564/util.rs

@@ -1,206 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io::{self, Read};
-///
-/// let mut buffer = String::new();
-/// io::empty().read_to_string(&mut buffer).unwrap();
-/// assert!(buffer.is_empty());
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-///
-/// # Examples
-///
-/// ```
-/// use std::io::{self, Read};
-///
-/// let mut buffer = [0; 3];
-/// io::repeat(0b101).read_exact(&mut buffer).unwrap();
-/// assert_eq!(buffer, [0b101, 0b101, 0b101]);
-/// ```
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-///
-/// # Examples
-///
-/// ```rust
-/// use std::io::{self, Write};
-///
-/// let buffer = vec![1, 2, 3, 5, 8];
-/// let num_bytes = io::sink().write(&buffer).unwrap();
-/// assert_eq!(num_bytes, 5);
-/// ```
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/552eda70d33cead1398adfecce1a75e7a61e3daf/cursor.rs

@@ -1,570 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-    use vec::Vec;
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/552eda70d33cead1398adfecce1a75e7a61e3daf/error.rs

@@ -1,314 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// `ErrorKind`.
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// Any I/O error not part of this list.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use prelude::v1::*;
-    use super::{Error, ErrorKind};
-    use error;
-    use error::Error as error_Error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/552eda70d33cead1398adfecce1a75e7a61e3daf/impls.rs

@@ -1,289 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use vec::Vec;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/552eda70d33cead1398adfecce1a75e7a61e3daf/memchr.rs

@@ -1,297 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = len - cmp::min(usize_bytes - end_align, len);
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all plattforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}

src/552eda70d33cead1398adfecce1a75e7a61e3daf/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/552eda70d33cead1398adfecce1a75e7a61e3daf/util.rs

@@ -1,191 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io;
-/// use std::io::Read;
-///
-/// # fn foo() -> io::Result<String> {
-/// let mut buffer = String::new();
-/// try!(io::empty().read_to_string(&mut buffer));
-/// # Ok(buffer)
-/// # }
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use prelude::v1::*;
-
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/62b19c627ebde2bbfa6021de146c502124da7975/cursor.rs

@@ -1,570 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-    use vec::Vec;
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/62b19c627ebde2bbfa6021de146c502124da7975/error.rs

@@ -1,313 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// `ErrorKind`.
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// Any I/O error not part of this list.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use prelude::v1::*;
-    use super::{Error, ErrorKind};
-    use error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/62b19c627ebde2bbfa6021de146c502124da7975/impls.rs

@@ -1,289 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use vec::Vec;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/62b19c627ebde2bbfa6021de146c502124da7975/memchr.rs

@@ -1,297 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = len - cmp::min(usize_bytes - end_align, len);
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all plattforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}

src/62b19c627ebde2bbfa6021de146c502124da7975/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/62b19c627ebde2bbfa6021de146c502124da7975/util.rs

@@ -1,191 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io;
-/// use std::io::Read;
-///
-/// # fn foo() -> io::Result<String> {
-/// let mut buffer = String::new();
-/// try!(io::empty().read_to_string(&mut buffer));
-/// # Ok(buffer)
-/// # }
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use prelude::v1::*;
-
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/78ab18199d69bcc801668bfbeea8190b2c73a939/cursor.rs

@@ -1,570 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-    use vec::Vec;
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/78ab18199d69bcc801668bfbeea8190b2c73a939/error.rs

@@ -1,314 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// `ErrorKind`.
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// Any I/O error not part of this list.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use prelude::v1::*;
-    use super::{Error, ErrorKind};
-    use error;
-    use error::Error as error_Error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}

src/78ab18199d69bcc801668bfbeea8190b2c73a939/impls.rs

@@ -1,289 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[cfg(feature="alloc")] use alloc::boxed::Box;
-use core::cmp;
-use io::{self, SeekFrom, Read, 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
-
-impl<'a, R: Read + ?Sized> Read for &'a mut R {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-impl<'a, W: Write + ?Sized> Write for &'a mut W {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[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() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-#[cfg(feature="alloc")]
-impl<R: Read + ?Sized> Read for Box<R> {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        (**self).read(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_to_end(buf)
-    }
-
-    #[cfg(feature="collections")]
-    #[inline]
-    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_to_string(buf)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        (**self).read_exact(buf)
-    }
-}
-#[cfg(feature="alloc")]
-impl<W: Write + ?Sized> Write for Box<W> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { (**self).flush() }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        (**self).write_all(buf)
-    }
-
-    #[inline]
-    fn write_fmt(&mut self, fmt: fmt::Arguments) -> io::Result<()> {
-        (**self).write_fmt(fmt)
-    }
-}
-#[cfg(feature="alloc")]
-impl<S: Seek + ?Sized> Seek for Box<S> {
-    #[inline]
-    fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
-}
-#[cfg(feature="collections")]
-impl<B: BufRead + ?Sized> BufRead for Box<B> {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { (**self).consume(amt) }
-
-    #[inline]
-    fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> io::Result<usize> {
-        (**self).read_until(byte, buf)
-    }
-
-    #[inline]
-    fn read_line(&mut self, buf: &mut String) -> io::Result<usize> {
-        (**self).read_line(buf)
-    }
-}
-
-// =============================================================================
-// In-memory buffer implementations
-
-impl<'a> Read for &'a [u8] {
-    #[inline]
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let amt = cmp::min(buf.len(), self.len());
-        let (a, b) = self.split_at(amt);
-        buf[..amt].copy_from_slice(a);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
-        if buf.len() > self.len() {
-            return Err(Error::new(ErrorKind::UnexpectedEof,
-                                  "failed to fill whole buffer"));
-        }
-        let (a, b) = self.split_at(buf.len());
-        buf.copy_from_slice(a);
-        *self = b;
-        Ok(())
-    }
-}
-
-#[cfg(feature="collections")]
-impl<'a> BufRead for &'a [u8] {
-    #[inline]
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
-
-    #[inline]
-    fn consume(&mut self, amt: usize) { *self = &self[amt..]; }
-}
-
-impl<'a> Write for &'a mut [u8] {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let amt = cmp::min(data.len(), self.len());
-        let (a, b) = mem::replace(self, &mut []).split_at_mut(amt);
-        a.copy_from_slice(&data[..amt]);
-        *self = b;
-        Ok(amt)
-    }
-
-    #[inline]
-    fn write_all(&mut self, data: &[u8]) -> io::Result<()> {
-        if self.write(data)? == data.len() {
-            Ok(())
-        } else {
-            Err(Error::new(ErrorKind::WriteZero, "failed to write whole buffer"))
-        }
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(feature="collections")]
-impl Write for Vec<u8> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        self.extend_from_slice(buf);
-        Ok(buf.len())
-    }
-
-    #[inline]
-    fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
-        self.extend_from_slice(buf);
-        Ok(())
-    }
-
-    #[inline]
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use vec::Vec;
-    use test;
-
-    #[bench]
-    fn bench_read_slice(b: &mut test::Bencher) {
-        let buf = [5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_slice(b: &mut test::Bencher) {
-        let mut buf = [0; 1024];
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_read_vec(b: &mut test::Bencher) {
-        let buf = vec![5; 1024];
-        let mut dst = [0; 128];
-
-        b.iter(|| {
-            let mut rd = &buf[..];
-            for _ in 0..8 {
-                let _ = rd.read(&mut dst);
-                test::black_box(&dst);
-            }
-        })
-    }
-
-    #[bench]
-    fn bench_write_vec(b: &mut test::Bencher) {
-        let mut buf = Vec::with_capacity(1024);
-        let src = [5; 128];
-
-        b.iter(|| {
-            let mut wr = &mut buf[..];
-            for _ in 0..8 {
-                let _ = wr.write_all(&src);
-                test::black_box(&wr);
-            }
-        })
-    }
-}

src/78ab18199d69bcc801668bfbeea8190b2c73a939/memchr.rs

@@ -1,297 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-//
-// Original implementation taken from rust-memchr
-// Copyright 2015 Andrew Gallant, bluss and Nicolas Koch
-
-pub use self::fallback::{memchr,memrchr};
-
-#[allow(dead_code)]
-mod fallback {
-    use core::cmp;
-    use core::mem;
-
-    const LO_U64: u64 = 0x0101010101010101;
-    const HI_U64: u64 = 0x8080808080808080;
-
-    // use truncation
-    const LO_USIZE: usize = LO_U64 as usize;
-    const HI_USIZE: usize = HI_U64 as usize;
-
-    /// Return `true` if `x` contains any zero byte.
-    ///
-    /// From *Matters Computational*, J. Arndt
-    ///
-    /// "The idea is to subtract one from each of the bytes and then look for
-    /// bytes where the borrow propagated all the way to the most significant
-    /// bit."
-    #[inline]
-    fn contains_zero_byte(x: usize) -> bool {
-        x.wrapping_sub(LO_USIZE) & !x & HI_USIZE != 0
-    }
-
-    #[cfg(target_pointer_width = "32")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep
-    }
-
-    #[cfg(target_pointer_width = "64")]
-    #[inline]
-    fn repeat_byte(b: u8) -> usize {
-        let mut rep = (b as usize) << 8 | b as usize;
-        rep = rep << 16 | rep;
-        rep = rep << 32 | rep;
-        rep
-    }
-
-    /// Return the first index matching the byte `a` in `text`.
-    pub fn memchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned initial part, before the first word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the last remaining part, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search up to an aligned boundary
-        let align = (ptr as usize) & (usize_bytes- 1);
-        let mut offset;
-        if align > 0 {
-            offset = cmp::min(usize_bytes - align, len);
-            if let Some(index) = text[..offset].iter().position(|elt| *elt == x) {
-                return Some(index);
-            }
-        } else {
-            offset = 0;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        if len >= 2 * usize_bytes {
-            while offset <= len - 2 * usize_bytes {
-                unsafe {
-                    let u = *(ptr.offset(offset as isize) as *const usize);
-                    let v = *(ptr.offset((offset + usize_bytes) as isize) as *const usize);
-
-                    // break if there is a matching byte
-                    let zu = contains_zero_byte(u ^ repeated_x);
-                    let zv = contains_zero_byte(v ^ repeated_x);
-                    if zu || zv {
-                        break;
-                    }
-                }
-                offset += usize_bytes * 2;
-            }
-        }
-
-        // find the byte after the point the body loop stopped
-        text[offset..].iter().position(|elt| *elt == x).map(|i| offset + i)
-    }
-
-    /// Return the last index matching the byte `a` in `text`.
-    pub fn memrchr(x: u8, text: &[u8]) -> Option<usize> {
-        // Scan for a single byte value by reading two `usize` words at a time.
-        //
-        // Split `text` in three parts
-        // - unaligned tail, after the last word aligned address in text
-        // - body, scan by 2 words at a time
-        // - the first remaining bytes, < 2 word size
-        let len = text.len();
-        let ptr = text.as_ptr();
-        let usize_bytes = mem::size_of::<usize>();
-
-        // search to an aligned boundary
-        let end_align = (ptr as usize + len) & (usize_bytes - 1);
-        let mut offset;
-        if end_align > 0 {
-            offset = len - cmp::min(usize_bytes - end_align, len);
-            if let Some(index) = text[offset..].iter().rposition(|elt| *elt == x) {
-                return Some(offset + index);
-            }
-        } else {
-            offset = len;
-        }
-
-        // search the body of the text
-        let repeated_x = repeat_byte(x);
-
-        while offset >= 2 * usize_bytes {
-            unsafe {
-                let u = *(ptr.offset(offset as isize - 2 * usize_bytes as isize) as *const usize);
-                let v = *(ptr.offset(offset as isize - usize_bytes as isize) as *const usize);
-
-                // break if there is a matching byte
-                let zu = contains_zero_byte(u ^ repeated_x);
-                let zv = contains_zero_byte(v ^ repeated_x);
-                if zu || zv {
-                    break;
-                }
-            }
-            offset -= 2 * usize_bytes;
-        }
-
-        // find the byte before the point the body loop stopped
-        text[..offset].iter().rposition(|elt| *elt == x)
-    }
-
-    // test fallback implementations on all plattforms
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    // test the implementations for the current plattform
-    use super::{memchr, memrchr};
-
-    #[test]
-    fn matches_one() {
-        assert_eq!(Some(0), memchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin() {
-        assert_eq!(Some(0), memchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end() {
-        assert_eq!(Some(4), memchr(b'z', b"aaaaz"));
-    }
-
-    #[test]
-    fn matches_nul() {
-        assert_eq!(Some(4), memchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul() {
-        assert_eq!(Some(5), memchr(b'z', b"aaaa\x00z"));
-    }
-
-    #[test]
-    fn no_match_empty() {
-        assert_eq!(None, memchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match() {
-        assert_eq!(None, memchr(b'a', b"xyz"));
-    }
-
-    #[test]
-    fn matches_one_reversed() {
-        assert_eq!(Some(0), memrchr(b'a', b"a"));
-    }
-
-    #[test]
-    fn matches_begin_reversed() {
-        assert_eq!(Some(3), memrchr(b'a', b"aaaa"));
-    }
-
-    #[test]
-    fn matches_end_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"zaaaa"));
-    }
-
-    #[test]
-    fn matches_nul_reversed() {
-        assert_eq!(Some(4), memrchr(b'\x00', b"aaaa\x00"));
-    }
-
-    #[test]
-    fn matches_past_nul_reversed() {
-        assert_eq!(Some(0), memrchr(b'z', b"z\x00aaaa"));
-    }
-
-    #[test]
-    fn no_match_empty_reversed() {
-        assert_eq!(None, memrchr(b'a', b""));
-    }
-
-    #[test]
-    fn no_match_reversed() {
-        assert_eq!(None, memrchr(b'a', b"xyz"));
-    }
-}

src/78ab18199d69bcc801668bfbeea8190b2c73a939/prelude.rs

@@ -1,25 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The I/O Prelude
-//!
-//! The purpose of this module is to alleviate imports of many common I/O traits
-//! by adding a glob import to the top of I/O heavy modules:
-//!
-//! ```
-//! # #![allow(unused_imports)]
-//! use std::io::prelude::*;
-//! ```
-
-pub use super::{Read, Write, Seek};
-#[cfg(feature="collections")] pub use super::BufRead;
-
-#[cfg(feature="collections")] pub use alloc::boxed::Box;
-#[cfg(feature="collections")] pub use collections::vec::Vec;

src/78ab18199d69bcc801668bfbeea8190b2c73a939/util.rs

@@ -1,191 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![allow(missing_copy_implementations)]
-
-use io::{self, Read, Write, ErrorKind};
-#[cfg(feature="collections")] use io::BufRead;
-
-/// Copies the entire contents of a reader into a writer.
-///
-/// This function will continuously read data from `reader` and then
-/// write it into `writer` in a streaming fashion until `reader`
-/// returns EOF.
-///
-/// On success, the total number of bytes that were copied from
-/// `reader` to `writer` is returned.
-///
-/// # Errors
-///
-/// This function will return an error immediately if any call to `read` or
-/// `write` returns an error. All instances of `ErrorKind::Interrupted` are
-/// handled by this function and the underlying operation is retried.
-///
-/// # Examples
-///
-/// ```
-/// use std::io;
-///
-/// # fn foo() -> io::Result<()> {
-/// let mut reader: &[u8] = b"hello";
-/// let mut writer: Vec<u8> = vec![];
-///
-/// try!(io::copy(&mut reader, &mut writer));
-///
-/// assert_eq!(reader, &writer[..]);
-/// # Ok(())
-/// # }
-/// ```
-pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<u64>
-    where R: Read, W: Write
-{
-    let mut buf = [0; super::DEFAULT_BUF_SIZE];
-    let mut written = 0;
-    loop {
-        let len = match reader.read(&mut buf) {
-            Ok(0) => return Ok(written),
-            Ok(len) => len,
-            Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Err(e),
-        };
-        writer.write_all(&buf[..len])?;
-        written += len as u64;
-    }
-}
-
-/// A reader which is always at EOF.
-///
-/// This struct is generally created by calling [`empty()`][empty]. Please see
-/// the documentation of `empty()` for more details.
-///
-/// [empty]: fn.empty.html
-pub struct Empty { _priv: () }
-
-/// Constructs a new handle to an empty reader.
-///
-/// All reads from the returned reader will return `Ok(0)`.
-///
-/// # Examples
-///
-/// A slightly sad example of not reading anything into a buffer:
-///
-/// ```
-/// use std::io;
-/// use std::io::Read;
-///
-/// # fn foo() -> io::Result<String> {
-/// let mut buffer = String::new();
-/// try!(io::empty().read_to_string(&mut buffer));
-/// # Ok(buffer)
-/// # }
-/// ```
-pub fn empty() -> Empty { Empty { _priv: () } }
-
-impl Read for Empty {
-    fn read(&mut self, _buf: &mut [u8]) -> io::Result<usize> { Ok(0) }
-}
-#[cfg(feature="collections")]
-impl BufRead for Empty {
-    fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
-    fn consume(&mut self, _n: usize) {}
-}
-
-/// A reader which yields one byte over and over and over and over and over and...
-///
-/// This struct is generally created by calling [`repeat()`][repeat]. Please
-/// see the documentation of `repeat()` for more details.
-///
-/// [repeat]: fn.repeat.html
-pub struct Repeat { byte: u8 }
-
-/// Creates an instance of a reader that infinitely repeats one byte.
-///
-/// All reads from this reader will succeed by filling the specified buffer with
-/// the given byte.
-pub fn repeat(byte: u8) -> Repeat { Repeat { byte: byte } }
-
-impl Read for Repeat {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        for slot in &mut *buf {
-            *slot = self.byte;
-        }
-        Ok(buf.len())
-    }
-}
-
-/// A writer which will move data into the void.
-///
-/// This struct is generally created by calling [`sink()`][sink]. Please
-/// see the documentation of `sink()` for more details.
-///
-/// [sink]: fn.sink.html
-pub struct Sink { _priv: () }
-
-/// Creates an instance of a writer which will successfully consume all data.
-///
-/// All calls to `write` on the returned instance will return `Ok(buf.len())`
-/// and the contents of the buffer will not be inspected.
-pub fn sink() -> Sink { Sink { _priv: () } }
-
-impl Write for Sink {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> { Ok(buf.len()) }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use prelude::v1::*;
-
-    use io::prelude::*;
-    use io::{copy, sink, empty, repeat};
-
-    #[test]
-    fn copy_copies() {
-        let mut r = repeat(0).take(4);
-        let mut w = sink();
-        assert_eq!(copy(&mut r, &mut w).unwrap(), 4);
-
-        let mut r = repeat(0).take(1 << 17);
-        assert_eq!(copy(&mut r as &mut Read, &mut w as &mut Write).unwrap(), 1 << 17);
-    }
-
-    #[test]
-    fn sink_sinks() {
-        let mut s = sink();
-        assert_eq!(s.write(&[]).unwrap(), 0);
-        assert_eq!(s.write(&[0]).unwrap(), 1);
-        assert_eq!(s.write(&[0; 1024]).unwrap(), 1024);
-        assert_eq!(s.by_ref().write(&[0; 1024]).unwrap(), 1024);
-    }
-
-    #[test]
-    fn empty_reads() {
-        let mut e = empty();
-        assert_eq!(e.read(&mut []).unwrap(), 0);
-        assert_eq!(e.read(&mut [0]).unwrap(), 0);
-        assert_eq!(e.read(&mut [0; 1024]).unwrap(), 0);
-        assert_eq!(e.by_ref().read(&mut [0; 1024]).unwrap(), 0);
-    }
-
-    #[test]
-    fn repeat_repeats() {
-        let mut r = repeat(4);
-        let mut b = [0; 1024];
-        assert_eq!(r.read(&mut b).unwrap(), 1024);
-        assert!(b.iter().all(|b| *b == 4));
-    }
-
-    #[test]
-    fn take_some_bytes() {
-        assert_eq!(repeat(4).take(100).bytes().count(), 100);
-        assert_eq!(repeat(4).take(100).bytes().next().unwrap().unwrap(), 4);
-        assert_eq!(repeat(1).take(10).chain(repeat(2).take(10)).bytes().count(), 20);
-    }
-}

src/80d733385aa2ff150a5d6f83ecfe55afc7e19e68/cursor.rs

@@ -1,572 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-use core::prelude::v1::*;
-use io::prelude::*;
-
-use core::cmp;
-use io::{self, SeekFrom, Error, ErrorKind};
-
-/// A `Cursor` wraps another type and provides it with a
-/// [`Seek`](trait.Seek.html) implementation.
-///
-/// Cursors are typically used with in-memory buffers to allow them to
-/// implement `Read` and/or `Write`, allowing these buffers to be used
-/// anywhere you might use a reader or writer that does actual I/O.
-///
-/// The standard library implements some I/O traits on various types which
-/// are commonly used as a buffer, like `Cursor<Vec<u8>>` and `Cursor<&[u8]>`.
-///
-/// # Examples
-///
-/// We may want to write bytes to a [`File`][file] in our production
-/// code, but use an in-memory buffer in our tests. We can do this with
-/// `Cursor`:
-///
-/// [file]: ../fs/struct.File.html
-///
-/// ```no_run
-/// use std::io::prelude::*;
-/// use std::io::{self, SeekFrom};
-/// use std::fs::File;
-///
-/// // a library function we've written
-/// fn write_ten_bytes_at_end<W: Write + Seek>(writer: &mut W) -> io::Result<()> {
-///     try!(writer.seek(SeekFrom::End(-10)));
-///
-///     for i in 0..10 {
-///         try!(writer.write(&[i]));
-///     }
-///
-///     // all went well
-///     Ok(())
-/// }
-///
-/// # fn foo() -> io::Result<()> {
-/// // Here's some code that uses this library function.
-/// //
-/// // We might want to use a BufReader here for efficiency, but let's
-/// // keep this example focused.
-/// let mut file = try!(File::create("foo.txt"));
-///
-/// try!(write_ten_bytes_at_end(&mut file));
-/// # Ok(())
-/// # }
-///
-/// // now let's write a test
-/// #[test]
-/// fn test_writes_bytes() {
-///     // setting up a real File is much more slow than an in-memory buffer,
-///     // let's use a cursor instead
-///     use std::io::Cursor;
-///     let mut buff = Cursor::new(vec![0; 15]);
-///
-///     write_ten_bytes_at_end(&mut buff).unwrap();
-///
-///     assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
-/// }
-/// ```
-#[derive(Clone, Debug)]
-pub struct Cursor<T> {
-    inner: T,
-    pos: u64,
-}
-
-impl<T> Cursor<T> {
-    /// Creates a new cursor wrapping the provided underlying I/O object.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    /// ```
-    pub fn new(inner: T) -> Cursor<T> {
-        Cursor { pos: 0, inner: inner }
-    }
-
-    /// Consumes this cursor, returning the underlying value.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let vec = buff.into_inner();
-    /// ```
-    pub fn into_inner(self) -> T { self.inner }
-
-    /// Gets a reference to the underlying value in this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_ref();
-    /// ```
-    pub fn get_ref(&self) -> &T { &self.inner }
-
-    /// Gets a mutable reference to the underlying value in this cursor.
-    ///
-    /// Care should be taken to avoid modifying the internal I/O state of the
-    /// underlying value as it may corrupt this cursor's position.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(Vec::new());
-    /// # fn force_inference(_: &Cursor<Vec<u8>>) {}
-    /// # force_inference(&buff);
-    ///
-    /// let reference = buff.get_mut();
-    /// ```
-    pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
-
-    /// Returns the current position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    /// use std::io::prelude::*;
-    /// use std::io::SeekFrom;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.seek(SeekFrom::Current(2)).unwrap();
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.seek(SeekFrom::Current(-1)).unwrap();
-    /// assert_eq!(buff.position(), 1);
-    /// ```
-    pub fn position(&self) -> u64 { self.pos }
-
-    /// Sets the position of this cursor.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::Cursor;
-    ///
-    /// let mut buff = Cursor::new(vec![1, 2, 3, 4, 5]);
-    ///
-    /// assert_eq!(buff.position(), 0);
-    ///
-    /// buff.set_position(2);
-    /// assert_eq!(buff.position(), 2);
-    ///
-    /// buff.set_position(4);
-    /// assert_eq!(buff.position(), 4);
-    /// ```
-    pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
-}
-
-impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
-    fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
-        let pos = match style {
-            SeekFrom::Start(n) => { self.pos = n; return Ok(n) }
-            SeekFrom::End(n) => self.inner.as_ref().len() as i64 + n,
-            SeekFrom::Current(n) => self.pos as i64 + n,
-        };
-
-        if pos < 0 {
-            Err(Error::new(ErrorKind::InvalidInput,
-                           "invalid seek to a negative position"))
-        } else {
-            self.pos = pos as u64;
-            Ok(self.pos)
-        }
-    }
-}
-
-impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        let n = Read::read(&mut self.fill_buf()?, buf)?;
-        self.pos += n as u64;
-        Ok(n)
-    }
-}
-
-impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
-    fn fill_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)..])
-    }
-    fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
-}
-
-impl<'a> Write for Cursor<&'a mut [u8]> {
-    #[inline]
-    fn write(&mut self, data: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(data)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Vec<u8>> {
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        // Make sure the internal buffer is as least as big as where we
-        // currently are
-        let pos = self.position();
-        let amt = pos.saturating_sub(self.inner.len() as u64);
-        // use `resize` so that the zero filling is as efficient as possible
-        let len = self.inner.len();
-        self.inner.resize(len + amt as usize, 0);
-
-        // Figure out what bytes will be used to overwrite what's currently
-        // there (left), and what will be appended on the end (right)
-        {
-            let pos = pos as usize;
-            let space = self.inner.len() - pos;
-            let (left, right) = buf.split_at(cmp::min(space, buf.len()));
-            self.inner[pos..pos + left.len()].copy_from_slice(left);
-            self.inner.extend_from_slice(right);
-        }
-
-        // Bump us forward
-        self.set_position(pos + buf.len() as u64);
-        Ok(buf.len())
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-impl Write for Cursor<Box<[u8]>> {
-    #[inline]
-    fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
-        let pos = cmp::min(self.pos, self.inner.len() as u64);
-        let amt = (&mut self.inner[(pos as usize)..]).write(buf)?;
-        self.pos += amt as u64;
-        Ok(amt)
-    }
-    fn flush(&mut self) -> io::Result<()> { Ok(()) }
-}
-
-#[cfg(test)]
-mod tests {
-    use io::prelude::*;
-    use io::{Cursor, SeekFrom};
-    use vec::Vec;
-
-    #[test]
-    fn test_vec_writer() {
-        let mut writer = Vec::new();
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(writer, b);
-    }
-
-    #[test]
-    fn test_mem_writer() {
-        let mut writer = Cursor::new(Vec::new());
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn test_box_slice_writer() {
-        let mut writer = Cursor::new(vec![0u8; 9].into_boxed_slice());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        assert_eq!(writer.write(&[]).unwrap(), 0);
-        assert_eq!(writer.position(), 8);
-
-        assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-        assert_eq!(writer.write(&[10]).unwrap(), 0);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(&**writer.get_ref(), b);
-    }
-
-    #[test]
-    fn test_buf_writer() {
-        let mut buf = [0 as u8; 9];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[0]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-            assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-            assert_eq!(writer.position(), 8);
-            assert_eq!(writer.write(&[]).unwrap(), 0);
-            assert_eq!(writer.position(), 8);
-
-            assert_eq!(writer.write(&[8, 9]).unwrap(), 1);
-            assert_eq!(writer.write(&[10]).unwrap(), 0);
-        }
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7, 8];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_seek() {
-        let mut buf = [0 as u8; 8];
-        {
-            let mut writer = Cursor::new(&mut buf[..]);
-            assert_eq!(writer.position(), 0);
-            assert_eq!(writer.write(&[1]).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-
-            assert_eq!(writer.seek(SeekFrom::Start(2)).unwrap(), 2);
-            assert_eq!(writer.position(), 2);
-            assert_eq!(writer.write(&[2]).unwrap(), 1);
-            assert_eq!(writer.position(), 3);
-
-            assert_eq!(writer.seek(SeekFrom::Current(-2)).unwrap(), 1);
-            assert_eq!(writer.position(), 1);
-            assert_eq!(writer.write(&[3]).unwrap(), 1);
-            assert_eq!(writer.position(), 2);
-
-            assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-            assert_eq!(writer.position(), 7);
-            assert_eq!(writer.write(&[4]).unwrap(), 1);
-            assert_eq!(writer.position(), 8);
-
-        }
-        let b: &[_] = &[1, 3, 2, 0, 0, 0, 0, 4];
-        assert_eq!(buf, b);
-    }
-
-    #[test]
-    fn test_buf_writer_error() {
-        let mut buf = [0 as u8; 2];
-        let mut writer = Cursor::new(&mut buf[..]);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 1);
-        assert_eq!(writer.write(&[0, 0]).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_mem_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_boxed_slice_reader() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7).into_boxed_slice());
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn read_to_end() {
-        let mut reader = Cursor::new(vec!(0, 1, 2, 3, 4, 5, 6, 7));
-        let mut v = Vec::new();
-        reader.read_to_end(&mut v).unwrap();
-        assert_eq!(v, [0, 1, 2, 3, 4, 5, 6, 7]);
-    }
-
-    #[test]
-    fn test_slice_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = &mut &in_buf[..];
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.len(), 7);
-        let b: &[_] = &[0];
-        assert_eq!(&buf[..], b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.len(), 3);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(&buf[..], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_buf_reader() {
-        let in_buf = vec![0, 1, 2, 3, 4, 5, 6, 7];
-        let mut reader = Cursor::new(&in_buf[..]);
-        let mut buf = [];
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-        assert_eq!(reader.position(), 0);
-        let mut buf = [0];
-        assert_eq!(reader.read(&mut buf).unwrap(), 1);
-        assert_eq!(reader.position(), 1);
-        let b: &[_] = &[0];
-        assert_eq!(buf, b);
-        let mut buf = [0; 4];
-        assert_eq!(reader.read(&mut buf).unwrap(), 4);
-        assert_eq!(reader.position(), 5);
-        let b: &[_] = &[1, 2, 3, 4];
-        assert_eq!(buf, b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 3);
-        let b: &[_] = &[5, 6, 7];
-        assert_eq!(&buf[..3], b);
-        assert_eq!(reader.read(&mut buf).unwrap(), 0);
-    }
-
-    #[test]
-    fn test_read_char() {
-        let b = &b"Vi\xE1\xBB\x87t"[..];
-        let mut c = Cursor::new(b).chars();
-        assert_eq!(c.next().unwrap().unwrap(), 'V');
-        assert_eq!(c.next().unwrap().unwrap(), 'i');
-        assert_eq!(c.next().unwrap().unwrap(), 'ệ');
-        assert_eq!(c.next().unwrap().unwrap(), 't');
-        assert!(c.next().is_none());
-    }
-
-    #[test]
-    fn test_read_bad_char() {
-        let b = &b"\x80"[..];
-        let mut c = Cursor::new(b).chars();
-        assert!(c.next().unwrap().is_err());
-    }
-
-    #[test]
-    fn seek_past_end() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec!(10));
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.read(&mut [0]).unwrap(), 0);
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-
-        let mut r = Cursor::new(vec![10].into_boxed_slice());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 0);
-    }
-
-    #[test]
-    fn seek_before_0() {
-        let buf = [0xff];
-        let mut r = Cursor::new(&buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10));
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut buf = [0];
-        let mut r = Cursor::new(&mut buf[..]);
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-
-        let mut r = Cursor::new(vec!(10).into_boxed_slice());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-
-    #[test]
-    fn test_seekable_mem_writer() {
-        let mut writer = Cursor::new(Vec::<u8>::new());
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[0]).unwrap(), 1);
-        assert_eq!(writer.position(), 1);
-        assert_eq!(writer.write(&[1, 2, 3]).unwrap(), 3);
-        assert_eq!(writer.write(&[4, 5, 6, 7]).unwrap(), 4);
-        assert_eq!(writer.position(), 8);
-        let b: &[_] = &[0, 1, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Start(0)).unwrap(), 0);
-        assert_eq!(writer.position(), 0);
-        assert_eq!(writer.write(&[3, 4]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 3, 4, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::Current(1)).unwrap(), 3);
-        assert_eq!(writer.write(&[0, 1]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 7];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(-1)).unwrap(), 7);
-        assert_eq!(writer.write(&[1, 2]).unwrap(), 2);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2];
-        assert_eq!(&writer.get_ref()[..], b);
-
-        assert_eq!(writer.seek(SeekFrom::End(1)).unwrap(), 10);
-        assert_eq!(writer.write(&[1]).unwrap(), 1);
-        let b: &[_] = &[3, 4, 2, 0, 1, 5, 6, 1, 2, 0, 1];
-        assert_eq!(&writer.get_ref()[..], b);
-    }
-
-    #[test]
-    fn vec_seek_past_end() {
-        let mut r = Cursor::new(Vec::new());
-        assert_eq!(r.seek(SeekFrom::Start(10)).unwrap(), 10);
-        assert_eq!(r.write(&[3]).unwrap(), 1);
-    }
-
-    #[test]
-    fn vec_seek_before_0() {
-        let mut r = Cursor::new(Vec::new());
-        assert!(r.seek(SeekFrom::End(-2)).is_err());
-    }
-}

src/80d733385aa2ff150a5d6f83ecfe55afc7e19e68/error.rs

@@ -1,313 +0,0 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#[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;
-
-/// A specialized [`Result`](../result/enum.Result.html) type for I/O
-/// operations.
-///
-/// This type is broadly used across `std::io` for any operation which may
-/// produce an error.
-///
-/// This typedef is generally used to avoid writing out `io::Error` directly and
-/// is otherwise a direct mapping to `Result`.
-///
-/// While usual Rust style is to import types directly, aliases of `Result`
-/// often are not, to make it easier to distinguish between them. `Result` is
-/// generally assumed to be `std::result::Result`, and so users of this alias
-/// will generally use `io::Result` instead of shadowing the prelude's import
-/// of `std::result::Result`.
-///
-/// # Examples
-///
-/// A convenience function that bubbles an `io::Result` to its caller:
-///
-/// ```
-/// use std::io;
-///
-/// fn get_string() -> io::Result<String> {
-///     let mut buffer = String::new();
-///
-///     try!(io::stdin().read_line(&mut buffer));
-///
-///     Ok(buffer)
-/// }
-/// ```
-pub type Result<T> = result::Result<T, Error>;
-
-/// The error type for I/O operations of the `Read`, `Write`, `Seek`, and
-/// associated traits.
-///
-/// Errors mostly originate from the underlying OS, but custom instances of
-/// `Error` can be created with crafted error messages and a particular value of
-/// `ErrorKind`.
-#[derive(Debug)]
-pub struct Error {
-    repr: Repr,
-}
-
-enum Repr {
-    Os(i32),
-    #[cfg(feature="alloc")]
-    Custom(Box<Custom>),
-    #[cfg(not(feature="alloc"))]
-    Custom(Custom),
-}
-
-#[derive(Debug)]
-struct Custom {
-    kind: ErrorKind,
-    error: String,
-}
-
-/// A list specifying general categories of I/O error.
-///
-/// This list is intended to grow over time and it is not recommended to
-/// exhaustively match against it.
-#[derive(Copy, PartialEq, Eq, Clone, Debug)]
-#[allow(deprecated)]
-pub enum ErrorKind {
-    /// An entity was not found, often a file.
-    NotFound,
-    /// The operation lacked the necessary privileges to complete.
-    PermissionDenied,
-    /// The connection was refused by the remote server.
-    ConnectionRefused,
-    /// The connection was reset by the remote server.
-    ConnectionReset,
-    /// The connection was aborted (terminated) by the remote server.
-    ConnectionAborted,
-    /// The network operation failed because it was not connected yet.
-    NotConnected,
-    /// A socket address could not be bound because the address is already in
-    /// use elsewhere.
-    AddrInUse,
-    /// A nonexistent interface was requested or the requested address was not
-    /// local.
-    AddrNotAvailable,
-    /// The operation failed because a pipe was closed.
-    BrokenPipe,
-    /// An entity already exists, often a file.
-    AlreadyExists,
-    /// The operation needs to block to complete, but the blocking operation was
-    /// requested to not occur.
-    WouldBlock,
-    /// A parameter was incorrect.
-    InvalidInput,
-    /// Data not valid for the operation were encountered.
-    ///
-    /// Unlike `InvalidInput`, this typically means that the operation
-    /// parameters were valid, however the error was caused by malformed
-    /// input data.
-    ///
-    /// For example, a function that reads a file into a string will error with
-    /// `InvalidData` if the file's contents are not valid UTF-8.
-    InvalidData,
-    /// The I/O operation's timeout expired, causing it to be canceled.
-    TimedOut,
-    /// An error returned when an operation could not be completed because a
-    /// call to `write` returned `Ok(0)`.
-    ///
-    /// This typically means that an operation could only succeed if it wrote a
-    /// particular number of bytes but only a smaller number of bytes could be
-    /// written.
-    WriteZero,
-    /// This operation was interrupted.
-    ///
-    /// Interrupted operations can typically be retried.
-    Interrupted,
-    /// Any I/O error not part of this list.
-    Other,
-
-    /// An error returned when an operation could not be completed because an
-    /// "end of file" was reached prematurely.
-    ///
-    /// 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.
-    UnexpectedEof,
-
-    /// Any I/O error not part of this list.
-    #[doc(hidden)]
-    __Nonexhaustive,
-}
-
-impl Error {
-    /// Creates a new I/O error from a known kind of error as well as an
-    /// arbitrary error payload.
-    ///
-    /// This function is used to generically create I/O errors which do not
-    /// originate from the OS itself. The `error` argument is an arbitrary
-    /// payload which will be contained in this `Error`.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// use std::io::{Error, ErrorKind};
-    ///
-    /// // errors can be created from strings
-    /// let custom_error = Error::new(ErrorKind::Other, "oh no!");
-    ///
-    /// // errors can also be created from other errors
-    /// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
-    /// ```
-    pub fn new<E>(kind: ErrorKind, error: E) -> Error
-        where E: Into<String>
-    {
-        Self::_new(kind, error.into())
-    }
-
-    fn _new(kind: ErrorKind, error: String) -> Error {
-        Error {
-            repr: Repr::Custom(Box::new(Custom {
-                kind: kind,
-                error: error,
-            }))
-        }
-    }
-
-    /// Creates a new instance of an `Error` from a particular OS error code.
-    pub fn from_raw_os_error(code: i32) -> Error {
-        Error { repr: Repr::Os(code) }
-    }
-
-    /// Returns the OS error that this error represents (if any).
-    ///
-    /// If this `Error` was constructed via `last_os_error` or
-    /// `from_raw_os_error`, then this function will return `Some`, otherwise
-    /// it will return `None`.
-    pub fn raw_os_error(&self) -> Option<i32> {
-        match self.repr {
-            Repr::Os(i) => Some(i),
-            Repr::Custom(..) => None,
-        }
-    }
-
-    /// Returns a reference to the inner error wrapped by this error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_ref(&self) -> Option<&String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref c) => Some(&c.error),
-        }
-    }
-
-    /// Returns a mutable reference to the inner error wrapped by this error
-    /// (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn get_mut(&mut self) -> Option<&mut String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(ref mut c) => Some(&mut c.error),
-        }
-    }
-
-    /// Consumes the `Error`, returning its inner error (if any).
-    ///
-    /// If this `Error` was constructed via `new` then this function will
-    /// return `Some`, otherwise it will return `None`.
-    pub fn into_inner(self) -> Option<String> {
-        match self.repr {
-            Repr::Os(..) => None,
-            Repr::Custom(c) => Some(c.error)
-        }
-    }
-
-    /// Returns the corresponding `ErrorKind` for this error.
-    pub fn kind(&self) -> ErrorKind {
-        match self.repr {
-            Repr::Os(_code) => ErrorKind::Other,
-            Repr::Custom(ref c) => c.kind,
-        }
-    }
-}
-
-impl fmt::Debug for Repr {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match *self {
-            Repr::Os(ref code) =>
-                fmt.debug_struct("Os").field("code", code).finish(),
-            Repr::Custom(ref c) => fmt.debug_tuple("Custom").field(c).finish(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        match self.repr {
-            Repr::Os(code) => {
-                write!(fmt, "os error {}", code)
-            }
-            Repr::Custom(ref c) => c.error.fmt(fmt),
-        }
-    }
-}
-
-fn _assert_error_is_sync_send() {
-    fn _is_sync_send<T: Sync+Send>() {}
-    _is_sync_send::<Error>();
-}
-
-#[cfg(test)]
-mod test {
-    use prelude::v1::*;
-    use super::{Error, ErrorKind};
-    use error;
-    use fmt;
-    use sys::os::error_string;
-
-    #[test]
-    fn test_debug_error() {
-        let code = 6;
-        let msg = error_string(code);
-        let err = Error { repr: super::Repr::Os(code) };
-        let expected = format!("Error {{ repr: Os {{ code: {:?}, message: {:?} }} }}", code, msg);
-        assert_eq!(format!("{:?}", err), expected);
-    }
-
-    #[test]
-    fn test_downcasting() {
-        #[derive(Debug)]
-        struct TestError;
-
-        impl fmt::Display for TestError {
-            fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
-                Ok(())
-            }
-        }
-
-        impl error::Error for TestError {
-            fn description(&self) -> &str {
-                "asdf"
-            }
-        }
-
-        // we have to call all of these UFCS style right now since method
-        // resolution won't implicitly drop the Send+Sync bounds
-        let mut err = Error::new(ErrorKind::Other, TestError);
-        assert!(err.get_ref().unwrap().is::<TestError>());
-        assert_eq!("asdf", err.get_ref().unwrap().description());
-        assert!(err.get_mut().unwrap().is::<TestError>());
-        let extracted = err.into_inner().unwrap();
-        extracted.downcast::<TestError>().unwrap();
-    }
-}