Tracking Issue for Borrowed{Fd,Handle} view types

Feature gate: #![feature(fd_view)]

This is a tracking issue for turning &BorrowedFd and &BorrowedHandle into &File and similar.

Public API

impl std::os::fd::BorrowedFd {
    pub fn to_view<T>(&self) -> &T where Self: AsRef<T>;
}

impl AsRef<File> for BorrowedFd {}
impl AsRef<TcpStream> for BorrowedFd {}
impl AsRef<TcpListener> for BorrowedFd {}
impl AsRef<UdpSocket> for BorrowedFd {}
impl AsRef<UnixDatagram> for BorrowedFd {}
impl AsRef<UnixListener> for BorrowedFd {}
impl AsRef<UnixStream> for BorrowedFd {}
impl AsRef<PipeReader> for BorrowedFd {}
impl AsRef<PipeWriter> for BorrowedFd {}
// ... TBD


impl std::os::windows::io::BorrowedHandle {
    pub fn to_view<T>(&self) -> &T where Self: AsRef<T>;
}

impl AsRef<File> for BorrowedHandle {}
impl AsRef<PipeReader> for BorrowedHandle {}
impl AsRef<PipeWriter> for BorrowedHandle {}
// ... TBD

Steps / History

(Remember to update the S-tracking-* label when checking boxes.)

• ACP: https://github.com/rust-lang/libs-team/issues/641
• Implementation: #160404
• Final comment period (FCP)^1
• Stabilization PR

Unresolved Questions

• None yet.

Start with the proposed public API for BorrowedFd and BorrowedHandle and review implementation PR #160404. The tracking work is complete only after unresolved questions are addressed, the final comment period finishes, and a stabilization PR is opened.