bjoernager/rust
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Implement Debug for File

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This patch adds a `Debug` impl for `std::fs::File`.

On all platforms (Unix and Windows) it shows the file descriptor.

On Linux, it displays the path and access mode as well.

Ideally we should show the path/mode for all platforms, not just Linux,
but this will do for now.

cc #24570
This commit is contained in:
Chris Wong 2015-04-19 21:27:19 +12:00
parent 21c48c3e82
commit 1131bc0a0f
4 changed files with 68 additions and 0 deletions
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7
src/libstd/fs.rs
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@ -19,6 +19,7 @@
use core::prelude::*;
use fmt;
use io::{self, Error, ErrorKind, SeekFrom, Seek, Read, Write};
use path::{Path, PathBuf};
use sys::fs2 as fs_imp;
@ -305,6 +306,12 @@ impl FromInner<fs_imp::File> for File {
}
}
impl fmt::Debug for File {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.inner.fmt(f)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl Read for File {
fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {