47 releases
0.8.5 | Sep 23, 2024 |
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0.8.4 | Jul 8, 2024 |
0.8.3 | May 24, 2024 |
0.8.2 | Mar 11, 2024 |
0.2.0 | Mar 26, 2019 |
#33 in Rust patterns
1,891,771 downloads per month
Used in 1,329 crates
(490 directly)
120KB
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()))]
ReadConfiguration { source: io::Error, path: PathBuf },
#[snafu(display("Unable to write result to {}", path.display()))]
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
~0.3–5.5MB
~30K SLoC