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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/rustix/src/path/dec_int.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/rustix/src/path/dec_int.rs')
-rw-r--r--vendor/rustix/src/path/dec_int.rs120
1 files changed, 0 insertions, 120 deletions
diff --git a/vendor/rustix/src/path/dec_int.rs b/vendor/rustix/src/path/dec_int.rs
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--- a/vendor/rustix/src/path/dec_int.rs
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@@ -1,120 +0,0 @@
-//! Efficient decimal integer formatting.
-//!
-//! # Safety
-//!
-//! This uses `CStr::from_bytes_with_nul_unchecked` and
-//! `str::from_utf8_unchecked`on the buffer that it filled itself.
-#![allow(unsafe_code)]
-
-use crate::backend::fd::{AsFd, AsRawFd};
-use crate::ffi::CStr;
-use core::fmt::Write;
-use itoa::{Buffer, Integer};
-#[cfg(all(feature = "std", unix))]
-use std::os::unix::ffi::OsStrExt;
-#[cfg(all(feature = "std", target_os = "wasi"))]
-use std::os::wasi::ffi::OsStrExt;
-#[cfg(feature = "std")]
-use {core::fmt, std::ffi::OsStr, std::path::Path};
-
-/// Format an integer into a decimal `Path` component, without constructing a
-/// temporary `PathBuf` or `String`.
-///
-/// This is used for opening paths such as `/proc/self/fd/<fd>` on Linux.
-///
-/// # Examples
-///
-/// ```
-/// # #[cfg(any(feature = "fs", feature = "net"))]
-/// use rustix::path::DecInt;
-///
-/// # #[cfg(any(feature = "fs", feature = "net"))]
-/// assert_eq!(
-/// format!("hello {}", DecInt::new(9876).as_ref().display()),
-/// "hello 9876"
-/// );
-/// ```
-#[derive(Clone)]
-pub struct DecInt {
- // 20 `u8`s is enough to hold the decimal ASCII representation of any
- // `u64`, and we add one for a NUL terminator for `as_c_str`.
- buf: [u8; 20 + 1],
- len: usize,
-}
-
-impl DecInt {
- /// Construct a new path component from an integer.
- #[inline]
- pub fn new<Int: Integer>(i: Int) -> Self {
- let mut me = DecIntWriter(Self {
- buf: [0; 20 + 1],
- len: 0,
- });
- let mut buf = Buffer::new();
- me.write_str(buf.format(i)).unwrap();
- me.0
- }
-
- /// Construct a new path component from a file descriptor.
- #[inline]
- pub fn from_fd<Fd: AsFd>(fd: Fd) -> Self {
- Self::new(fd.as_fd().as_raw_fd())
- }
-
- /// Return the raw byte buffer as a `&str`.
- #[inline]
- pub fn as_str(&self) -> &str {
- // SAFETY: `DecInt` always holds a formatted decimal number, so it's
- // always valid UTF-8.
- unsafe { core::str::from_utf8_unchecked(self.as_bytes()) }
- }
-
- /// Return the raw byte buffer as a `&CStr`.
- #[inline]
- pub fn as_c_str(&self) -> &CStr {
- let bytes_with_nul = &self.buf[..=self.len];
- debug_assert!(CStr::from_bytes_with_nul(bytes_with_nul).is_ok());
-
- // SAFETY: `self.buf` holds a single decimal ASCII representation and
- // at least one extra NUL byte.
- unsafe { CStr::from_bytes_with_nul_unchecked(bytes_with_nul) }
- }
-
- /// Return the raw byte buffer.
- #[inline]
- pub fn as_bytes(&self) -> &[u8] {
- &self.buf[..self.len]
- }
-}
-
-struct DecIntWriter(DecInt);
-
-impl core::fmt::Write for DecIntWriter {
- #[inline]
- fn write_str(&mut self, s: &str) -> core::fmt::Result {
- match self.0.buf.get_mut(self.0.len..self.0.len + s.len()) {
- Some(slice) => {
- slice.copy_from_slice(s.as_bytes());
- self.0.len += s.len();
- Ok(())
- }
- None => Err(core::fmt::Error),
- }
- }
-}
-
-#[cfg(feature = "std")]
-impl AsRef<Path> for DecInt {
- #[inline]
- fn as_ref(&self) -> &Path {
- let as_os_str: &OsStr = OsStrExt::from_bytes(&self.buf[..self.len]);
- Path::new(as_os_str)
- }
-}
-
-#[cfg(feature = "std")]
-impl fmt::Debug for DecInt {
- fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
- self.as_str().fmt(fmt)
- }
-}