40 releases
0.7.4 | Dec 19, 2022 |
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0.7.3 | Oct 20, 2022 |
0.7.1 | May 3, 2022 |
0.7.0 | Jan 4, 2022 |
0.2.0 | Mar 26, 2019 |
#16 in Rust patterns
333,894 downloads per month
Used in 647 crates
(322 directly)
110KB
2K
SLoC
SNAFU
Situation Normal: All Fouled Up
SNAFU is a library to easily assign underlying errors into domain-specific errors while adding context.
use snafu::prelude::*;
use std::{fs, io, path::PathBuf};
#[derive(Debug, Snafu)]
enum Error {
#[snafu(display("Unable to read configuration from {}: {}", path.display(), source))]
ReadConfiguration { source: io::Error, path: PathBuf },
#[snafu(display("Unable to write result to {}: {}", path.display(), source))]
WriteResult { source: io::Error, path: PathBuf },
}
type Result<T, E = Error> = std::result::Result<T, E>;
fn process_data() -> Result<()> {
let path = "config.toml";
let configuration = fs::read_to_string(path).context(ReadConfigurationSnafu { path })?;
let path = unpack_config(&configuration);
fs::write(&path, b"My complex calculation").context(WriteResultSnafu { path })?;
Ok(())
}
fn unpack_config(data: &str) -> &str {
"/some/path/that/does/not/exist"
}
Please see the documentation and the user's guide for a full description.
Dependencies
~0.7–1.7MB
~38K SLoC