Thanks to visit codestin.com
Credit goes to github.com

Skip to content

Add forwarding impls for Read, Write, Seek to Arc, Rc #93044

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 5 commits into from
Closed

Add forwarding impls for Read, Write, Seek to Arc, Rc #93044

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
87e2400
Add impls for Read, Write, Seek to Arc, Rc
eholk Jan 18, 2022
6d4ea5a
Add test case for Read for Arc<T>
eholk Jan 25, 2022
3e72e28
Add test cases covering Write, Seek, and Rc
eholk Jan 26, 2022
0d94e64
Fix formatting
eholk Jan 26, 2022
b95f4cd
Add documentation comments
eholk Jan 26, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 3 additions & 0 deletions library/std/src/io/impls.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,9 @@
#[cfg(test)]
mod tests;

mod arc;
mod rc;

use crate::alloc::Allocator;
use crate::cmp;
use crate::fmt;
Expand Down
96 changes: 96 additions & 0 deletions library/std/src/io/impls/arc.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,96 @@
//! Forwarding implementations for Rc

use crate::fmt;
use crate::io::{self, IoSlice, IoSliceMut, Read, ReadBuf, Seek, SeekFrom, Write};
use alloc::sync::Arc;

#[stable(feature = "io_delegation_rc", since = "1.60.0")]
impl<T> Read for Arc<T>
where
for<'a> &'a T: Read,
{
#[inline]
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
(self as &T).read(buf)
}

#[inline]
fn read_buf(&mut self, buf: &mut ReadBuf<'_>) -> io::Result<()> {
(self as &T).read_buf(buf)
}

#[inline]
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
(self as &T).read_vectored(bufs)
}

#[inline]
fn is_read_vectored(&self) -> bool {
(self as &T).is_read_vectored()
}

#[inline]
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
(self as &T).read_to_end(buf)
}

#[inline]
fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
(self as &T).read_to_string(buf)
}

#[inline]
fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
(self as &T).read_exact(buf)
}
}
#[stable(feature = "io_delegation_rc", since = "1.60.0")]
impl<T> Write for Arc<T>
where
for<'a> &'a T: Write,
{
#[inline]
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
(self as &T).write(buf)
}

#[inline]
fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
(self as &T).write_vectored(bufs)
}

#[inline]
fn is_write_vectored(&self) -> bool {
(self as &T).is_write_vectored()
}

#[inline]
fn flush(&mut self) -> io::Result<()> {
(self as &T).flush()
}

#[inline]
fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
(self as &T).write_all(buf)
}

#[inline]
fn write_fmt(&mut self, fmt: fmt::Arguments<'_>) -> io::Result<()> {
(self as &T).write_fmt(fmt)
}
}
#[stable(feature = "io_delegation_rc", since = "1.60.0")]
impl<T> Seek for Arc<T>
where
for<'a> &'a T: Seek,
{
#[inline]
fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
(self as &T).seek(pos)
}

#[inline]
fn stream_position(&mut self) -> io::Result<u64> {
(self as &T).stream_position()
}
}
96 changes: 96 additions & 0 deletions library/std/src/io/impls/rc.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,96 @@
//! Forwarding implementations for Rc

use crate::fmt;
use crate::io::{self, IoSlice, IoSliceMut, Read, ReadBuf, Seek, SeekFrom, Write};
use alloc::rc::Rc;

#[stable(feature = "io_delegation_rc", since = "1.60.0")]
impl<T> Read for Rc<T>
where
for<'a> &'a T: Read,
{
#[inline]
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
(self as &T).read(buf)
}

#[inline]
fn read_buf(&mut self, buf: &mut ReadBuf<'_>) -> io::Result<()> {
(self as &T).read_buf(buf)
}

#[inline]
fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
(self as &T).read_vectored(bufs)
}

#[inline]
fn is_read_vectored(&self) -> bool {
(self as &T).is_read_vectored()
}

#[inline]
fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
(self as &T).read_to_end(buf)
}

#[inline]
fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
(self as &T).read_to_string(buf)
}

#[inline]
fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
(self as &T).read_exact(buf)
}
}
#[stable(feature = "io_delegation_rc", since = "1.60.0")]
impl<T> Write for Rc<T>
where
for<'a> &'a T: Write,
{
#[inline]
fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
(self as &T).write(buf)
}

#[inline]
fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> io::Result<usize> {
(self as &T).write_vectored(bufs)
}

#[inline]
fn is_write_vectored(&self) -> bool {
(self as &T).is_write_vectored()
}

#[inline]
fn flush(&mut self) -> io::Result<()> {
(self as &T).flush()
}

#[inline]
fn write_all(&mut self, buf: &[u8]) -> io::Result<()> {
(self as &T).write_all(buf)
}

#[inline]
fn write_fmt(&mut self, fmt: fmt::Arguments<'_>) -> io::Result<()> {
(self as &T).write_fmt(fmt)
}
}
#[stable(feature = "io_delegation_rc", since = "1.60.0")]
impl<T> Seek for Rc<T>
where
for<'a> &'a T: Seek,
{
#[inline]
fn seek(&mut self, pos: SeekFrom) -> io::Result<u64> {
(self as &T).seek(pos)
}

#[inline]
fn stream_position(&mut self) -> io::Result<u64> {
(self as &T).stream_position()
}
}