3 releases (breaking)
0.3.0 | Apr 12, 2024 |
---|---|
0.2.0 | Apr 11, 2024 |
0.1.0 | Dec 7, 2023 |
#2014 in Rust patterns
108 downloads per month
Used in tracing-configuration
9KB
140 lines
An extension trait for io::Error
, with shorthand constructors for various
io::ErrorKind
s, and a [context()
] method.
use std::{fs::File, io::{self, Write as _}, str};
use io_extra::{IoErrorExt as _, context, with};
fn write_log(contents: &[u8], mut file: File) -> io::Result<()> {
if let Err(e) = str::from_utf8(contents) {
return Err(io::Error::invalid_input("`contents` was not UTF-8"))
// ^ shorthand constructor
}
file.write_all(contents).map_err(with("couldn't write file"))
// ^ easily add context
}
lib.rs
:
An extension trait for io::Error
, with shorthand constructors for various
io::ErrorKind
s, and a [context()
] method.
use std::{fs::File, io::{self, Write as _}, str};
use io_extra::{IoErrorExt as _, context, with};
fn write_log(contents: &[u8], mut file: File) -> io::Result<()> {
if let Err(e) = str::from_utf8(contents) {
return Err(io::Error::invalid_input("`contents` was not UTF-8"))
// ^ shorthand constructor
}
file.write_all(contents).map_err(with("couldn't write file"))
// ^ easily add context
}