4 releases
0.1.3 | Jul 25, 2022 |
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0.1.2 | Jul 24, 2022 |
0.1.1 | Jul 24, 2022 |
0.1.0 | Jul 24, 2022 |
#16 in #error-derive
Used in 2 crates
15KB
208 lines
rust-error-utils
A collection of some rust macros to simplify common error handling patterns.
Usage
Add to Cargo.toml
:
[dependencies.error-utils]
git = "https://gitlab.com/robert-oleynik/rust-error-utils.git"
handle_err
Macro
use error_utils::handle_err;
use std::path::Path;
fn read_file<P: AsRef<Path>>(path: P) -> std::io::Result<()> {
let content = handle_err!(std::fs::read_string(path), err => {
eprintln!("{}", err);
return Err(err);
})
// ...
}
See Documentation
fail
Macro
Shorthand for std::process::exit
fail!();
// or
fail!(10);
See Documentation
Errors
Derive Macro
This Macro requires the
derive
feature. (Enabled per default)
Note: This example uses the toml
crate.
use std::path::Path;
use error_utils::Errors;
#[derive(Debug, Errors)]
enum ConfigError {
#[error("Failed to read config file (Reason: {})", from)]
Io(std::io::Error),
#[error("Failed to parse config file (Reason: {})", from)]
Toml(toml::de::Error)
}
fn read_config<P: AsRef<Path>>(path: P) -> Result<toml::Value, ConfigError> {
let content = std::fs::read_to_string(path)?;
Ok(toml::from_str(&content)?)
}
See Documentation
License
This project is license under the MIT
license. See
LICENSE
Dependencies
~1.5MB
~35K SLoC