Patch 62b19c627ebde2bbfa6021de146c502124da7975 for core
This commit is contained in:
Jethro Beekman
parent
3c731ea162
commit
281e692c68
@ -10,15 +10,13 @@
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//! Buffering wrappers for I/O traits
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use prelude::v1::*;
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use core::prelude::v1::*;
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use io::prelude::*;
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use marker::Reflect;
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use cmp;
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use error;
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use fmt;
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use core::cmp;
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use core::fmt;
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use io::{self, DEFAULT_BUF_SIZE, Error, ErrorKind, SeekFrom};
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use memchr;
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use io::memchr;
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/// The `BufReader` struct adds buffering to any reader.
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///
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@ -44,7 +42,6 @@ use memchr;
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub struct BufReader<R> {
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inner: R,
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buf: Box<[u8]>,
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@ -67,7 +64,6 @@ impl<R: Read> BufReader<R> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn new(inner: R) -> BufReader<R> {
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BufReader::with_capacity(DEFAULT_BUF_SIZE, inner)
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}
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@ -88,7 +84,6 @@ impl<R: Read> BufReader<R> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn with_capacity(cap: usize, inner: R) -> BufReader<R> {
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BufReader {
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inner: inner,
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@ -116,7 +111,6 @@ impl<R: Read> BufReader<R> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_ref(&self) -> &R { &self.inner }
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/// Gets a mutable reference to the underlying reader.
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@ -137,7 +131,6 @@ impl<R: Read> BufReader<R> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_mut(&mut self) -> &mut R { &mut self.inner }
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/// Unwraps this `BufReader`, returning the underlying reader.
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@ -158,11 +151,9 @@ impl<R: Read> BufReader<R> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn into_inner(self) -> R { self.inner }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<R: Read> Read for BufReader<R> {
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fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
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// If we don't have any buffered data and we're doing a massive read
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@ -180,7 +171,6 @@ impl<R: Read> Read for BufReader<R> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<R: Read> BufRead for BufReader<R> {
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fn fill_buf(&mut self) -> io::Result<&[u8]> {
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// If we've reached the end of our internal buffer then we need to fetch
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@ -197,7 +187,6 @@ impl<R: Read> BufRead for BufReader<R> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<R> fmt::Debug for BufReader<R> where R: fmt::Debug {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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fmt.debug_struct("BufReader")
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@ -207,7 +196,6 @@ impl<R> fmt::Debug for BufReader<R> where R: fmt::Debug {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<R: Seek> Seek for BufReader<R> {
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/// Seek to an offset, in bytes, in the underlying reader.
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///
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@ -296,7 +284,6 @@ impl<R: Seek> Seek for BufReader<R> {
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/// By wrapping the stream with a `BufWriter`, these ten writes are all grouped
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/// together by the buffer, and will all be written out in one system call when
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/// the `stream` is dropped.
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#[stable(feature = "rust1", since = "1.0.0")]
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pub struct BufWriter<W: Write> {
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inner: Option<W>,
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buf: Vec<u8>,
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@ -331,7 +318,6 @@ pub struct BufWriter<W: Write> {
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/// };
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/// ```
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#[derive(Debug)]
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#[stable(feature = "rust1", since = "1.0.0")]
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pub struct IntoInnerError<W>(W, Error);
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impl<W: Write> BufWriter<W> {
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@ -345,7 +331,6 @@ impl<W: Write> BufWriter<W> {
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///
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/// let mut buffer = BufWriter::new(TcpStream::connect("127.0.0.1:34254").unwrap());
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn new(inner: W) -> BufWriter<W> {
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BufWriter::with_capacity(DEFAULT_BUF_SIZE, inner)
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}
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@ -363,7 +348,6 @@ impl<W: Write> BufWriter<W> {
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/// let stream = TcpStream::connect("127.0.0.1:34254").unwrap();
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/// let mut buffer = BufWriter::with_capacity(100, stream);
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn with_capacity(cap: usize, inner: W) -> BufWriter<W> {
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BufWriter {
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inner: Some(inner),
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@ -412,7 +396,6 @@ impl<W: Write> BufWriter<W> {
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/// // we can use reference just like buffer
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/// let reference = buffer.get_ref();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_ref(&self) -> &W { self.inner.as_ref().unwrap() }
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/// Gets a mutable reference to the underlying writer.
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@ -430,7 +413,6 @@ impl<W: Write> BufWriter<W> {
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/// // we can use reference just like buffer
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/// let reference = buffer.get_mut();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_mut(&mut self) -> &mut W { self.inner.as_mut().unwrap() }
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/// Unwraps this `BufWriter`, returning the underlying writer.
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@ -448,7 +430,6 @@ impl<W: Write> BufWriter<W> {
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/// // unwrap the TcpStream and flush the buffer
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/// let stream = buffer.into_inner().unwrap();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn into_inner(mut self) -> Result<W, IntoInnerError<BufWriter<W>>> {
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match self.flush_buf() {
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Err(e) => Err(IntoInnerError(self, e)),
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@ -457,7 +438,6 @@ impl<W: Write> BufWriter<W> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Write> Write for BufWriter<W> {
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fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
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if self.buf.len() + buf.len() > self.buf.capacity() {
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@ -478,7 +458,6 @@ impl<W: Write> Write for BufWriter<W> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Write> fmt::Debug for BufWriter<W> where W: fmt::Debug {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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fmt.debug_struct("BufWriter")
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@ -488,7 +467,6 @@ impl<W: Write> fmt::Debug for BufWriter<W> where W: fmt::Debug {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Write + Seek> Seek for BufWriter<W> {
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/// Seek to the offset, in bytes, in the underlying writer.
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///
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@ -498,7 +476,6 @@ impl<W: Write + Seek> Seek for BufWriter<W> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Write> Drop for BufWriter<W> {
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fn drop(&mut self) {
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if self.inner.is_some() && !self.panicked {
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@ -537,7 +514,6 @@ impl<W> IntoInnerError<W> {
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/// }
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/// };
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn error(&self) -> &Error { &self.1 }
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/// Returns the buffered writer instance which generated the error.
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@ -570,23 +546,13 @@ impl<W> IntoInnerError<W> {
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/// }
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/// };
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn into_inner(self) -> W { self.0 }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W> From<IntoInnerError<W>> for Error {
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fn from(iie: IntoInnerError<W>) -> Error { iie.1 }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Reflect + Send + fmt::Debug> error::Error for IntoInnerError<W> {
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fn description(&self) -> &str {
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error::Error::description(self.error())
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W> fmt::Display for IntoInnerError<W> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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self.error().fmt(f)
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@ -641,7 +607,6 @@ impl<W> fmt::Display for IntoInnerError<W> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub struct LineWriter<W: Write> {
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inner: BufWriter<W>,
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}
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@ -661,7 +626,6 @@ impl<W: Write> LineWriter<W> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn new(inner: W) -> LineWriter<W> {
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// Lines typically aren't that long, don't use a giant buffer
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LineWriter::with_capacity(1024, inner)
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@ -682,7 +646,6 @@ impl<W: Write> LineWriter<W> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn with_capacity(cap: usize, inner: W) -> LineWriter<W> {
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LineWriter { inner: BufWriter::with_capacity(cap, inner) }
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}
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@ -703,7 +666,6 @@ impl<W: Write> LineWriter<W> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_ref(&self) -> &W { self.inner.get_ref() }
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/// Gets a mutable reference to the underlying writer.
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@ -726,7 +688,6 @@ impl<W: Write> LineWriter<W> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_mut(&mut self) -> &mut W { self.inner.get_mut() }
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/// Unwraps this `LineWriter`, returning the underlying writer.
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@ -748,7 +709,6 @@ impl<W: Write> LineWriter<W> {
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/// # Ok(())
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/// # }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn into_inner(self) -> Result<W, IntoInnerError<LineWriter<W>>> {
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self.inner.into_inner().map_err(|IntoInnerError(buf, e)| {
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IntoInnerError(LineWriter { inner: buf }, e)
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@ -756,7 +716,6 @@ impl<W: Write> LineWriter<W> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Write> Write for LineWriter<W> {
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fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
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match memchr::memrchr(b'\n', buf) {
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@ -775,7 +734,6 @@ impl<W: Write> Write for LineWriter<W> {
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fn flush(&mut self) -> io::Result<()> { self.inner.flush() }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<W: Write> fmt::Debug for LineWriter<W> where W: fmt::Debug {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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fmt.debug_struct("LineWriter")
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@ -8,10 +8,10 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use prelude::v1::*;
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use core::prelude::v1::*;
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use io::prelude::*;
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use cmp;
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use core::cmp;
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use io::{self, SeekFrom, Error, ErrorKind};
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/// A `Cursor` wraps another type and provides it with a
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@ -73,7 +73,6 @@ use io::{self, SeekFrom, Error, ErrorKind};
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/// assert_eq!(&buff.get_ref()[5..15], &[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]);
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/// }
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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#[derive(Clone, Debug)]
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pub struct Cursor<T> {
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inner: T,
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@ -92,7 +91,6 @@ impl<T> Cursor<T> {
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/// # fn force_inference(_: &Cursor<Vec<u8>>) {}
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/// # force_inference(&buff);
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn new(inner: T) -> Cursor<T> {
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Cursor { pos: 0, inner: inner }
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}
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@ -110,7 +108,6 @@ impl<T> Cursor<T> {
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///
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/// let vec = buff.into_inner();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn into_inner(self) -> T { self.inner }
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/// Gets a reference to the underlying value in this cursor.
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@ -126,7 +123,6 @@ impl<T> Cursor<T> {
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///
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/// let reference = buff.get_ref();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_ref(&self) -> &T { &self.inner }
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/// Gets a mutable reference to the underlying value in this cursor.
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@ -145,7 +141,6 @@ impl<T> Cursor<T> {
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///
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/// let reference = buff.get_mut();
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn get_mut(&mut self) -> &mut T { &mut self.inner }
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/// Returns the current position of this cursor.
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@ -167,7 +162,6 @@ impl<T> Cursor<T> {
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/// buff.seek(SeekFrom::Current(-1)).unwrap();
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/// assert_eq!(buff.position(), 1);
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn position(&self) -> u64 { self.pos }
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/// Sets the position of this cursor.
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@ -187,11 +181,9 @@ impl<T> Cursor<T> {
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/// buff.set_position(4);
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/// assert_eq!(buff.position(), 4);
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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pub fn set_position(&mut self, pos: u64) { self.pos = pos; }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
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fn seek(&mut self, style: SeekFrom) -> io::Result<u64> {
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let pos = match style {
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@ -210,7 +202,6 @@ impl<T> io::Seek for Cursor<T> where T: AsRef<[u8]> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
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fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
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let n = Read::read(&mut self.fill_buf()?, buf)?;
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@ -219,7 +210,6 @@ impl<T> Read for Cursor<T> where T: AsRef<[u8]> {
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}
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
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fn fill_buf(&mut self) -> io::Result<&[u8]> {
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let amt = cmp::min(self.pos, self.inner.as_ref().len() as u64);
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@ -228,7 +218,6 @@ impl<T> BufRead for Cursor<T> where T: AsRef<[u8]> {
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fn consume(&mut self, amt: usize) { self.pos += amt as u64; }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl<'a> Write for Cursor<&'a mut [u8]> {
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fn write(&mut self, data: &[u8]) -> io::Result<usize> {
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let pos = cmp::min(self.pos, self.inner.len() as u64);
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@ -239,7 +228,6 @@ impl<'a> Write for Cursor<&'a mut [u8]> {
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fn flush(&mut self) -> io::Result<()> { Ok(()) }
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}
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#[stable(feature = "rust1", since = "1.0.0")]
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impl Write for Cursor<Vec<u8>> {
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fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
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// Make sure the internal buffer is as least as big as where we
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@ -267,7 +255,6 @@ impl Write for Cursor<Vec<u8>> {
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fn flush(&mut self) -> io::Result<()> { Ok(()) }
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}
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#[stable(feature = "cursor_box_slice", since = "1.5.0")]
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impl Write for Cursor<Box<[u8]>> {
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fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
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let pos = cmp::min(self.pos, self.inner.len() as u64);
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@ -8,14 +8,15 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use boxed::Box;
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use convert::Into;
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use error;
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use fmt;
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use marker::{Send, Sync};
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use option::Option::{self, Some, None};
|
||||
use result;
|
||||
use sys;
|
||||
#[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.
|
||||
@ -47,7 +48,6 @@ use sys;
|
||||
/// 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
|
||||
@ -57,20 +57,22 @@ pub type Result<T> = result::Result<T, Error>;
|
||||
/// `Error` can be created with crafted error messages and a particular value of
|
||||
/// `ErrorKind`.
|
||||
#[derive(Debug)]
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
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: Box<error::Error+Send+Sync>,
|
||||
error: String,
|
||||
}
|
||||
|
||||
/// A list specifying general categories of I/O error.
|
||||
@ -78,47 +80,34 @@ struct Custom {
|
||||
/// This list is intended to grow over time and it is not recommended to
|
||||
/// exhaustively match against it.
|
||||
#[derive(Copy, PartialEq, Eq, Clone, Debug)]
|
||||
#[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.
|
||||
///
|
||||
@ -128,10 +117,8 @@ pub enum ErrorKind {
|
||||
///
|
||||
/// 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)`.
|
||||
@ -139,15 +126,12 @@ pub enum ErrorKind {
|
||||
/// 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
|
||||
@ -156,14 +140,9 @@ pub enum ErrorKind {
|
||||
/// This typically means that an operation could only succeed if it read a
|
||||
/// particular number of bytes but only a smaller number of bytes could be
|
||||
/// read.
|
||||
#[stable(feature = "read_exact", since = "1.6.0")]
|
||||
UnexpectedEof,
|
||||
|
||||
/// Any I/O error not part of this list.
|
||||
#[unstable(feature = "io_error_internals",
|
||||
reason = "better expressed through extensible enums that this \
|
||||
enum cannot be exhaustively matched against",
|
||||
issue = "0")]
|
||||
#[doc(hidden)]
|
||||
__Nonexhaustive,
|
||||
}
|
||||
@ -187,14 +166,13 @@ impl Error {
|
||||
/// // errors can also be created from other errors
|
||||
/// let custom_error2 = Error::new(ErrorKind::Interrupted, custom_error);
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn new<E>(kind: ErrorKind, error: E) -> Error
|
||||
where E: Into<Box<error::Error+Send+Sync>>
|
||||
where E: Into<String>
|
||||
{
|
||||
Self::_new(kind, error.into())
|
||||
}
|
||||
|
||||
fn _new(kind: ErrorKind, error: Box<error::Error+Send+Sync>) -> Error {
|
||||
fn _new(kind: ErrorKind, error: String) -> Error {
|
||||
Error {
|
||||
repr: Repr::Custom(Box::new(Custom {
|
||||
kind: kind,
|
||||
@ -203,18 +181,7 @@ impl Error {
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns an error representing the last OS error which occurred.
|
||||
///
|
||||
/// This function reads the value of `errno` for the target platform (e.g.
|
||||
/// `GetLastError` on Windows) and will return a corresponding instance of
|
||||
/// `Error` for the error code.
|
||||
#[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.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn from_raw_os_error(code: i32) -> Error {
|
||||
Error { repr: Repr::Os(code) }
|
||||
}
|
||||
@ -224,7 +191,6 @@ impl Error {
|
||||
/// 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`.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn raw_os_error(&self) -> Option<i32> {
|
||||
match self.repr {
|
||||
Repr::Os(i) => Some(i),
|
||||
@ -236,11 +202,10 @@ impl Error {
|
||||
///
|
||||
/// If this `Error` was constructed via `new` then this function will
|
||||
/// return `Some`, otherwise it will return `None`.
|
||||
#[stable(feature = "io_error_inner", since = "1.3.0")]
|
||||
pub fn get_ref(&self) -> Option<&(error::Error+Send+Sync+'static)> {
|
||||
pub fn get_ref(&self) -> Option<&String> {
|
||||
match self.repr {
|
||||
Repr::Os(..) => None,
|
||||
Repr::Custom(ref c) => Some(&*c.error),
|
||||
Repr::Custom(ref c) => Some(&c.error),
|
||||
}
|
||||
}
|
||||
|
||||
@ -249,11 +214,10 @@ impl Error {
|
||||
///
|
||||
/// If this `Error` was constructed via `new` then this function will
|
||||
/// return `Some`, otherwise it will return `None`.
|
||||
#[stable(feature = "io_error_inner", since = "1.3.0")]
|
||||
pub fn get_mut(&mut self) -> Option<&mut (error::Error+Send+Sync+'static)> {
|
||||
pub fn get_mut(&mut self) -> Option<&mut String> {
|
||||
match self.repr {
|
||||
Repr::Os(..) => None,
|
||||
Repr::Custom(ref mut c) => Some(&mut *c.error),
|
||||
Repr::Custom(ref mut c) => Some(&mut c.error),
|
||||
}
|
||||
}
|
||||
|
||||
@ -261,8 +225,7 @@ impl Error {
|
||||
///
|
||||
/// If this `Error` was constructed via `new` then this function will
|
||||
/// return `Some`, otherwise it will return `None`.
|
||||
#[stable(feature = "io_error_inner", since = "1.3.0")]
|
||||
pub fn into_inner(self) -> Option<Box<error::Error+Send+Sync>> {
|
||||
pub fn into_inner(self) -> Option<String> {
|
||||
match self.repr {
|
||||
Repr::Os(..) => None,
|
||||
Repr::Custom(c) => Some(c.error)
|
||||
@ -270,10 +233,9 @@ impl Error {
|
||||
}
|
||||
|
||||
/// Returns the corresponding `ErrorKind` for this error.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn kind(&self) -> ErrorKind {
|
||||
match self.repr {
|
||||
Repr::Os(code) => sys::decode_error_kind(code),
|
||||
Repr::Os(_code) => ErrorKind::Other,
|
||||
Repr::Custom(ref c) => c.kind,
|
||||
}
|
||||
}
|
||||
@ -283,63 +245,23 @@ 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(),
|
||||
fmt.debug_struct("Os").field("code", 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)
|
||||
write!(fmt, "os error {}", 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>();
|
||||
|
||||
@ -8,29 +8,31 @@
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
use boxed::Box;
|
||||
use cmp;
|
||||
use io::{self, SeekFrom, Read, Write, Seek, BufRead, Error, ErrorKind};
|
||||
use fmt;
|
||||
use mem;
|
||||
use string::String;
|
||||
use vec::Vec;
|
||||
#[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
|
||||
|
||||
#[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)
|
||||
}
|
||||
|
||||
#[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)
|
||||
@ -41,7 +43,6 @@ impl<'a, R: Read + ?Sized> Read for &'a mut R {
|
||||
(**self).read_exact(buf)
|
||||
}
|
||||
}
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
impl<'a, W: Write + ?Sized> Write for &'a mut W {
|
||||
#[inline]
|
||||
fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
|
||||
@ -59,12 +60,11 @@ impl<'a, W: Write + ?Sized> Write for &'a mut W {
|
||||
(**self).write_fmt(fmt)
|
||||
}
|
||||
}
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
impl<'a, S: Seek + ?Sized> Seek for &'a mut S {
|
||||
#[inline]
|
||||
fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> { (**self).seek(pos) }
|
||||
}
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<'a, B: BufRead + ?Sized> BufRead for &'a mut B {
|
||||
#[inline]
|
||||
fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
|
||||
@ -83,18 +83,20 @@ impl<'a, B: BufRead + ?Sized> BufRead for &'a mut B {
|
||||
}
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[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)
|
||||
@ -105,7 +107,7 @@ impl<R: Read + ?Sized> Read for Box<R> {
|
||||
(**self).read_exact(buf)
|
||||
}
|
||||
}
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="alloc")]
|
||||
impl<W: Write + ?Sized> Write for Box<W> {
|
||||
#[inline]
|
||||
fn write(&mut self, buf: &[u8]) -> io::Result<usize> { (**self).write(buf) }
|
||||
@ -123,12 +125,12 @@ impl<W: Write + ?Sized> Write for Box<W> {
|
||||
(**self).write_fmt(fmt)
|
||||
}
|
||||
}
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="alloc")]
|
||||
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")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<B: BufRead + ?Sized> BufRead for Box<B> {
|
||||
#[inline]
|
||||
fn fill_buf(&mut self) -> io::Result<&[u8]> { (**self).fill_buf() }
|
||||
@ -150,7 +152,6 @@ impl<B: BufRead + ?Sized> BufRead for Box<B> {
|
||||
// =============================================================================
|
||||
// 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> {
|
||||
@ -174,7 +175,7 @@ impl<'a> Read for &'a [u8] {
|
||||
}
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<'a> BufRead for &'a [u8] {
|
||||
#[inline]
|
||||
fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(*self) }
|
||||
@ -183,7 +184,6 @@ impl<'a> BufRead for &'a [u8] {
|
||||
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> {
|
||||
@ -207,7 +207,7 @@ impl<'a> Write for &'a mut [u8] {
|
||||
fn flush(&mut self) -> io::Result<()> { Ok(()) }
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl Write for Vec<u8> {
|
||||
#[inline]
|
||||
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
|
||||
|
||||
@ -11,103 +11,12 @@
|
||||
// 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));
|
||||
/// ```
|
||||
pub fn memchr(needle: u8, haystack: &[u8]) -> Option<usize> {
|
||||
// libc memchr
|
||||
#[cfg(not(target_os = "windows"))]
|
||||
fn memchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
|
||||
use libc;
|
||||
|
||||
let p = unsafe {
|
||||
libc::memchr(
|
||||
haystack.as_ptr() as *const libc::c_void,
|
||||
needle as libc::c_int,
|
||||
haystack.len() as libc::size_t)
|
||||
};
|
||||
if p.is_null() {
|
||||
None
|
||||
} else {
|
||||
Some(p as usize - (haystack.as_ptr() as usize))
|
||||
}
|
||||
}
|
||||
|
||||
// use fallback on windows, since it's faster
|
||||
#[cfg(target_os = "windows")]
|
||||
fn memchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
|
||||
fallback::memchr(needle, haystack)
|
||||
}
|
||||
|
||||
memchr_specific(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));
|
||||
/// ```
|
||||
pub fn memrchr(needle: u8, haystack: &[u8]) -> Option<usize> {
|
||||
|
||||
#[cfg(target_os = "linux")]
|
||||
fn memrchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
|
||||
use libc;
|
||||
|
||||
// GNU's memrchr() will - unlike memchr() - error if haystack is empty.
|
||||
if haystack.is_empty() {return None}
|
||||
let p = unsafe {
|
||||
libc::memrchr(
|
||||
haystack.as_ptr() as *const libc::c_void,
|
||||
needle as libc::c_int,
|
||||
haystack.len() as libc::size_t)
|
||||
};
|
||||
if p.is_null() {
|
||||
None
|
||||
} else {
|
||||
Some(p as usize - (haystack.as_ptr() as usize))
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(not(target_os = "linux"))]
|
||||
fn memrchr_specific(needle: u8, haystack: &[u8]) -> Option<usize> {
|
||||
fallback::memrchr(needle, haystack)
|
||||
}
|
||||
|
||||
memrchr_specific(needle, haystack)
|
||||
}
|
||||
pub use self::fallback::{memchr,memrchr};
|
||||
|
||||
#[allow(dead_code)]
|
||||
mod fallback {
|
||||
use cmp;
|
||||
use mem;
|
||||
use core::cmp;
|
||||
use core::mem;
|
||||
|
||||
const LO_U64: u64 = 0x0101010101010101;
|
||||
const HI_U64: u64 = 0x8080808080808080;
|
||||
|
||||
@ -247,49 +247,32 @@
|
||||
//! contract. The implementation of many of these functions are subject to change over
|
||||
//! time and may call fewer or more syscalls/library functions.
|
||||
|
||||
#![stable(feature = "rust1", since = "1.0.0")]
|
||||
|
||||
use cmp;
|
||||
use core::cmp;
|
||||
use rustc_unicode::str as core_str;
|
||||
use error as std_error;
|
||||
use fmt;
|
||||
use iter::{Iterator};
|
||||
use marker::Sized;
|
||||
use ops::{Drop, FnOnce};
|
||||
use option::Option::{self, Some, None};
|
||||
use result::Result::{Ok, Err};
|
||||
use result;
|
||||
use string::String;
|
||||
use str;
|
||||
use vec::Vec;
|
||||
use memchr;
|
||||
use core::fmt;
|
||||
use core::iter::{Iterator};
|
||||
use core::marker::Sized;
|
||||
#[cfg(feature="collections")] use core::ops::{Drop, FnOnce};
|
||||
use core::option::Option::{self, Some, None};
|
||||
use core::result::Result::{Ok, Err};
|
||||
use core::result;
|
||||
#[cfg(feature="collections")] use collections::string::String;
|
||||
use core::str;
|
||||
#[cfg(feature="collections")] use collections::vec::Vec;
|
||||
mod memchr;
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use self::buffered::{BufReader, BufWriter, LineWriter};
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use self::buffered::IntoInnerError;
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use self::cursor::Cursor;
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")] pub use self::buffered::{BufReader, BufWriter, LineWriter};
|
||||
#[cfg(feature="collections")] pub use self::buffered::IntoInnerError;
|
||||
#[cfg(feature="collections")] pub use self::cursor::Cursor;
|
||||
pub use self::error::{Result, Error, ErrorKind};
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use self::util::{copy, sink, Sink, empty, Empty, repeat, Repeat};
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use self::stdio::{stdin, stdout, stderr, _print, Stdin, Stdout, Stderr};
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use self::stdio::{StdoutLock, StderrLock, StdinLock};
|
||||
#[unstable(feature = "libstd_io_internals", issue = "0")]
|
||||
#[doc(no_inline, hidden)]
|
||||
pub use self::stdio::{set_panic, set_print};
|
||||
|
||||
pub mod prelude;
|
||||
mod buffered;
|
||||
mod cursor;
|
||||
#[cfg(feature="collections")] mod buffered;
|
||||
#[cfg(feature="collections")] mod cursor;
|
||||
mod error;
|
||||
mod impls;
|
||||
mod lazy;
|
||||
mod util;
|
||||
mod stdio;
|
||||
|
||||
const DEFAULT_BUF_SIZE: usize = 8 * 1024;
|
||||
|
||||
@ -311,6 +294,7 @@ const DEFAULT_BUF_SIZE: usize = 8 * 1024;
|
||||
// 2. We're passing a raw buffer to the function `f`, and it is expected that
|
||||
// the function only *appends* bytes to the buffer. We'll get undefined
|
||||
// behavior if existing bytes are overwritten to have non-UTF-8 data.
|
||||
#[cfg(feature="collections")]
|
||||
fn append_to_string<F>(buf: &mut String, f: F) -> Result<usize>
|
||||
where F: FnOnce(&mut Vec<u8>) -> Result<usize>
|
||||
{
|
||||
@ -342,6 +326,7 @@ fn append_to_string<F>(buf: &mut String, f: F) -> Result<usize>
|
||||
// of data to return. Simply tacking on an extra DEFAULT_BUF_SIZE space every
|
||||
// time is 4,500 times (!) slower than this if the reader has a very small
|
||||
// amount of data to return.
|
||||
#[cfg(feature="collections")]
|
||||
fn read_to_end<R: Read + ?Sized>(r: &mut R, buf: &mut Vec<u8>) -> Result<usize> {
|
||||
let start_len = buf.len();
|
||||
let mut len = start_len;
|
||||
@ -424,7 +409,6 @@ fn read_to_end<R: Read + ?Sized>(r: &mut R, buf: &mut Vec<u8>) -> Result<usize>
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub trait Read {
|
||||
/// Pull some bytes from this source into the specified buffer, returning
|
||||
/// how many bytes were read.
|
||||
@ -474,7 +458,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn read(&mut self, buf: &mut [u8]) -> Result<usize>;
|
||||
|
||||
/// Read all bytes until EOF in this source, placing them into `buf`.
|
||||
@ -516,7 +499,7 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize> {
|
||||
read_to_end(self, buf)
|
||||
}
|
||||
@ -554,7 +537,7 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
fn read_to_string(&mut self, buf: &mut String) -> Result<usize> {
|
||||
// Note that we do *not* call `.read_to_end()` here. We are passing
|
||||
// `&mut Vec<u8>` (the raw contents of `buf`) into the `read_to_end`
|
||||
@ -615,7 +598,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "read_exact", since = "1.6.0")]
|
||||
fn read_exact(&mut self, mut buf: &mut [u8]) -> Result<()> {
|
||||
while !buf.is_empty() {
|
||||
match self.read(buf) {
|
||||
@ -667,7 +649,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn by_ref(&mut self) -> &mut Self where Self: Sized { self }
|
||||
|
||||
/// Transforms this `Read` instance to an `Iterator` over its bytes.
|
||||
@ -697,7 +678,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn bytes(self) -> Bytes<Self> where Self: Sized {
|
||||
Bytes { inner: self }
|
||||
}
|
||||
@ -734,10 +714,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[unstable(feature = "io", reason = "the semantics of a partial read/write \
|
||||
of where errors happen is currently \
|
||||
unclear and may change",
|
||||
issue = "27802")]
|
||||
fn chars(self) -> Chars<Self> where Self: Sized {
|
||||
Chars { inner: self }
|
||||
}
|
||||
@ -772,7 +748,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn chain<R: Read>(self, next: R) -> Chain<Self, R> where Self: Sized {
|
||||
Chain { first: self, second: next, done_first: false }
|
||||
}
|
||||
@ -806,7 +781,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn take(self, limit: u64) -> Take<Self> where Self: Sized {
|
||||
Take { inner: self, limit: limit }
|
||||
}
|
||||
@ -842,7 +816,6 @@ pub trait Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub trait Write {
|
||||
/// Write a buffer into this object, returning how many bytes were written.
|
||||
///
|
||||
@ -882,7 +855,6 @@ pub trait Write {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn write(&mut self, buf: &[u8]) -> Result<usize>;
|
||||
|
||||
/// Flush this output stream, ensuring that all intermediately buffered
|
||||
@ -908,7 +880,6 @@ pub trait Write {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn flush(&mut self) -> Result<()>;
|
||||
|
||||
/// Attempts to write an entire buffer into this write.
|
||||
@ -935,7 +906,6 @@ pub trait Write {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn write_all(&mut self, mut buf: &[u8]) -> Result<()> {
|
||||
while !buf.is_empty() {
|
||||
match self.write(buf) {
|
||||
@ -987,7 +957,6 @@ pub trait Write {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn write_fmt(&mut self, fmt: fmt::Arguments) -> Result<()> {
|
||||
// Create a shim which translates a Write to a fmt::Write and saves
|
||||
// off I/O errors. instead of discarding them
|
||||
@ -1043,7 +1012,6 @@ pub trait Write {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn by_ref(&mut self) -> &mut Self where Self: Sized { self }
|
||||
}
|
||||
|
||||
@ -1073,7 +1041,6 @@ pub trait Write {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub trait Seek {
|
||||
/// Seek to an offset, in bytes, in a stream.
|
||||
///
|
||||
@ -1087,35 +1054,31 @@ pub trait Seek {
|
||||
/// # Errors
|
||||
///
|
||||
/// Seeking to a negative offset is considered an error.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn seek(&mut self, pos: SeekFrom) -> Result<u64>;
|
||||
}
|
||||
|
||||
/// Enumeration of possible methods to seek within an I/O object.
|
||||
#[derive(Copy, PartialEq, Eq, Clone, Debug)]
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub enum SeekFrom {
|
||||
/// Set the offset to the provided number of bytes.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
Start(#[stable(feature = "rust1", since = "1.0.0")] u64),
|
||||
Start(u64),
|
||||
|
||||
/// Set the offset to the size of this object plus the specified number of
|
||||
/// bytes.
|
||||
///
|
||||
/// It is possible to seek beyond the end of an object, but it's an error to
|
||||
/// seek before byte 0.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
End(#[stable(feature = "rust1", since = "1.0.0")] i64),
|
||||
End(i64),
|
||||
|
||||
/// Set the offset to the current position plus the specified number of
|
||||
/// bytes.
|
||||
///
|
||||
/// It is possible to seek beyond the end of an object, but it's an error to
|
||||
/// seek before byte 0.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
Current(#[stable(feature = "rust1", since = "1.0.0")] i64),
|
||||
Current(i64),
|
||||
}
|
||||
|
||||
#[cfg(feature="collections")]
|
||||
fn read_until<R: BufRead + ?Sized>(r: &mut R, delim: u8, buf: &mut Vec<u8>)
|
||||
-> Result<usize> {
|
||||
let mut read = 0;
|
||||
@ -1195,7 +1158,7 @@ fn read_until<R: BufRead + ?Sized>(r: &mut R, delim: u8, buf: &mut Vec<u8>)
|
||||
/// # }
|
||||
/// ```
|
||||
///
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
pub trait BufRead: Read {
|
||||
/// Fills the internal buffer of this object, returning the buffer contents.
|
||||
///
|
||||
@ -1240,7 +1203,6 @@ pub trait BufRead: Read {
|
||||
/// // ensure the bytes we worked with aren't returned again later
|
||||
/// stdin.consume(length);
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn fill_buf(&mut self) -> Result<&[u8]>;
|
||||
|
||||
/// Tells this buffer that `amt` bytes have been consumed from the buffer,
|
||||
@ -1262,7 +1224,6 @@ pub trait BufRead: Read {
|
||||
///
|
||||
/// Since `consume()` is meant to be used with [`fill_buf()`][fillbuf],
|
||||
/// that method's example includes an example of `consume()`.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn consume(&mut self, amt: usize);
|
||||
|
||||
/// Read all bytes into `buf` until the delimiter `byte` is reached.
|
||||
@ -1303,7 +1264,6 @@ pub trait BufRead: Read {
|
||||
/// # Ok(())
|
||||
/// # }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize> {
|
||||
read_until(self, byte, buf)
|
||||
}
|
||||
@ -1351,7 +1311,6 @@ pub trait BufRead: Read {
|
||||
/// buffer.clear();
|
||||
/// }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn read_line(&mut self, buf: &mut String) -> Result<usize> {
|
||||
// Note that we are not calling the `.read_until` method here, but
|
||||
// rather our hardcoded implementation. For more details as to why, see
|
||||
@ -1384,7 +1343,6 @@ pub trait BufRead: Read {
|
||||
/// println!("{:?}", content.unwrap());
|
||||
/// }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn split(self, byte: u8) -> Split<Self> where Self: Sized {
|
||||
Split { buf: self, delim: byte }
|
||||
}
|
||||
@ -1409,7 +1367,6 @@ pub trait BufRead: Read {
|
||||
/// println!("{}", line.unwrap());
|
||||
/// }
|
||||
/// ```
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
fn lines(self) -> Lines<Self> where Self: Sized {
|
||||
Lines { buf: self }
|
||||
}
|
||||
@ -1421,14 +1378,12 @@ pub trait BufRead: Read {
|
||||
/// Please see the documentation of `chain()` for more details.
|
||||
///
|
||||
/// [chain]: trait.Read.html#method.chain
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub struct Chain<T, U> {
|
||||
first: T,
|
||||
second: U,
|
||||
done_first: bool,
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
impl<T: Read, U: Read> Read for Chain<T, U> {
|
||||
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
|
||||
if !self.done_first {
|
||||
@ -1441,7 +1396,7 @@ impl<T: Read, U: Read> Read for Chain<T, U> {
|
||||
}
|
||||
}
|
||||
|
||||
#[stable(feature = "chain_bufread", since = "1.9.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<T: BufRead, U: BufRead> BufRead for Chain<T, U> {
|
||||
fn fill_buf(&mut self) -> Result<&[u8]> {
|
||||
if !self.done_first {
|
||||
@ -1468,7 +1423,6 @@ impl<T: BufRead, U: BufRead> BufRead for Chain<T, U> {
|
||||
/// Please see the documentation of `take()` for more details.
|
||||
///
|
||||
/// [take]: trait.Read.html#method.take
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub struct Take<T> {
|
||||
inner: T,
|
||||
limit: u64,
|
||||
@ -1482,11 +1436,9 @@ impl<T> Take<T> {
|
||||
///
|
||||
/// This instance may reach EOF after reading fewer bytes than indicated by
|
||||
/// this method if the underlying `Read` instance reaches EOF.
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub fn limit(&self) -> u64 { self.limit }
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
impl<T: Read> Read for Take<T> {
|
||||
fn read(&mut self, buf: &mut [u8]) -> Result<usize> {
|
||||
// Don't call into inner reader at all at EOF because it may still block
|
||||
@ -1501,7 +1453,7 @@ impl<T: Read> Read for Take<T> {
|
||||
}
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<T: BufRead> BufRead for Take<T> {
|
||||
fn fill_buf(&mut self) -> Result<&[u8]> {
|
||||
// Don't call into inner reader at all at EOF because it may still block
|
||||
@ -1528,12 +1480,10 @@ impl<T: BufRead> BufRead for Take<T> {
|
||||
/// Please see the documentation of `bytes()` for more details.
|
||||
///
|
||||
/// [bytes]: trait.Read.html#method.bytes
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub struct Bytes<R> {
|
||||
inner: R,
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
impl<R: Read> Iterator for Bytes<R> {
|
||||
type Item = Result<u8>;
|
||||
|
||||
@ -1553,8 +1503,6 @@ impl<R: Read> Iterator for Bytes<R> {
|
||||
/// Please see the documentation of `chars()` for more details.
|
||||
///
|
||||
/// [chars]: trait.Read.html#method.chars
|
||||
#[unstable(feature = "io", reason = "awaiting stability of Read::chars",
|
||||
issue = "27802")]
|
||||
pub struct Chars<R> {
|
||||
inner: R,
|
||||
}
|
||||
@ -1562,8 +1510,6 @@ pub struct Chars<R> {
|
||||
/// An enumeration of possible errors that can be generated from the `Chars`
|
||||
/// adapter.
|
||||
#[derive(Debug)]
|
||||
#[unstable(feature = "io", reason = "awaiting stability of Read::chars",
|
||||
issue = "27802")]
|
||||
pub enum CharsError {
|
||||
/// Variant representing that the underlying stream was read successfully
|
||||
/// but it did not contain valid utf8 data.
|
||||
@ -1573,8 +1519,6 @@ pub enum CharsError {
|
||||
Other(Error),
|
||||
}
|
||||
|
||||
#[unstable(feature = "io", reason = "awaiting stability of Read::chars",
|
||||
issue = "27802")]
|
||||
impl<R: Read> Iterator for Chars<R> {
|
||||
type Item = result::Result<char, CharsError>;
|
||||
|
||||
@ -1606,25 +1550,6 @@ impl<R: Read> Iterator for Chars<R> {
|
||||
}
|
||||
}
|
||||
|
||||
#[unstable(feature = "io", reason = "awaiting stability of Read::chars",
|
||||
issue = "27802")]
|
||||
impl std_error::Error for CharsError {
|
||||
fn description(&self) -> &str {
|
||||
match *self {
|
||||
CharsError::NotUtf8 => "invalid utf8 encoding",
|
||||
CharsError::Other(ref e) => std_error::Error::description(e),
|
||||
}
|
||||
}
|
||||
fn cause(&self) -> Option<&std_error::Error> {
|
||||
match *self {
|
||||
CharsError::NotUtf8 => None,
|
||||
CharsError::Other(ref e) => e.cause(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[unstable(feature = "io", reason = "awaiting stability of Read::chars",
|
||||
issue = "27802")]
|
||||
impl fmt::Display for CharsError {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
match *self {
|
||||
@ -1643,13 +1568,13 @@ impl fmt::Display for CharsError {
|
||||
/// `BufRead`. Please see the documentation of `split()` for more details.
|
||||
///
|
||||
/// [split]: trait.BufRead.html#method.split
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
pub struct Split<B> {
|
||||
buf: B,
|
||||
delim: u8,
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<B: BufRead> Iterator for Split<B> {
|
||||
type Item = Result<Vec<u8>>;
|
||||
|
||||
@ -1674,12 +1599,12 @@ impl<B: BufRead> Iterator for Split<B> {
|
||||
/// `BufRead`. Please see the documentation of `lines()` for more details.
|
||||
///
|
||||
/// [lines]: trait.BufRead.html#method.lines
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
pub struct Lines<B> {
|
||||
buf: B,
|
||||
}
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
#[cfg(feature="collections")]
|
||||
impl<B: BufRead> Iterator for Lines<B> {
|
||||
type Item = Result<String>;
|
||||
|
||||
|
||||
@ -18,7 +18,8 @@
|
||||
//! use std::io::prelude::*;
|
||||
//! ```
|
||||
|
||||
#![stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use super::{Read, Write, Seek};
|
||||
#[cfg(feature="collections")] pub use super::BufRead;
|
||||
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub use super::{Read, Write, BufRead, Seek};
|
||||
#[cfg(feature="collections")] pub use alloc::boxed::Box;
|
||||
#[cfg(feature="collections")] pub use collections::vec::Vec;
|
||||
|
||||
@ -10,7 +10,8 @@
|
||||
|
||||
#![allow(missing_copy_implementations)]
|
||||
|
||||
use io::{self, Read, Write, ErrorKind, BufRead};
|
||||
use io::{self, Read, Write, ErrorKind};
|
||||
#[cfg(feature="collections")] use io::BufRead;
|
||||
|
||||
/// Copies the entire contents of a reader into a writer.
|
||||
///
|
||||
@ -42,7 +43,6 @@ use io::{self, Read, Write, ErrorKind, BufRead};
|
||||
/// # 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
|
||||
{
|
||||
@ -66,7 +66,6 @@ pub fn copy<R: ?Sized, W: ?Sized>(reader: &mut R, writer: &mut W) -> io::Result<
|
||||
/// 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.
|
||||
@ -87,14 +86,12 @@ pub struct Empty { _priv: () }
|
||||
/// # Ok(buffer)
|
||||
/// # }
|
||||
/// ```
|
||||
#[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")]
|
||||
#[cfg(feature="collections")]
|
||||
impl BufRead for Empty {
|
||||
fn fill_buf(&mut self) -> io::Result<&[u8]> { Ok(&[]) }
|
||||
fn consume(&mut self, _n: usize) {}
|
||||
@ -106,17 +103,14 @@ impl BufRead for Empty {
|
||||
/// see the documentation of `repeat()` for more details.
|
||||
///
|
||||
/// [repeat]: fn.repeat.html
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub struct Repeat { byte: u8 }
|
||||
|
||||
/// Creates an instance of a reader that infinitely repeats one byte.
|
||||
///
|
||||
/// All reads from this reader will succeed by filling the specified buffer with
|
||||
/// the given byte.
|
||||
#[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 {
|
||||
@ -132,17 +126,14 @@ impl Read for Repeat {
|
||||
/// see the documentation of `sink()` for more details.
|
||||
///
|
||||
/// [sink]: fn.sink.html
|
||||
#[stable(feature = "rust1", since = "1.0.0")]
|
||||
pub struct Sink { _priv: () }
|
||||
|
||||
/// Creates an instance of a writer which will successfully consume all data.
|
||||
///
|
||||
/// All calls to `write` on the returned instance will return `Ok(buf.len())`
|
||||
/// and the contents of the buffer will not be inspected.
|
||||
#[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(()) }
|
||||
|
||||
Loading…
Reference in New Issue
Block a user