err-derive

library0.3.1rscratesunverified

Derive macro for implementing the `std::error::Error` trait on custom error types.

# Cargo.toml
[dependencies]
err-derive = "0.3.1"

homepage ↗docs ↗

INSTALL

IMPORT

SIG · ERR-DERIVE

err-derive

utilityrustv0.3.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

Error

✓ use err_derive::Error;

Defines a custom error type using the derive macro.

use err_derive::Error; #[derive(Debug, Error)] pub enum MyError { #[error(display = "An IO error occurred: {}", _0)] Io(#[source] std::io::Error), } fn main() { let e = MyError::Io(std::io::Error::new(std::io::ErrorKind::Other, "oh no")); println!("{}", e); }

Debug

Known issues

gotchaRequires Rust edition 2018 or later for proc macros.

fix

Ensure your crate is set to edition 2018 or 2021 in Cargo.toml.

affects: >=0.1.0

Upgrade

Version history

0.3.1latest on crates.io

Audit

Dependencies

No dependency data recorded yet.

Agent activity

2 hits · last 30 days

node

Resources

homepagehttps://gitlab.com/torkleyy/err-derive ↗

docshttps://docs.rs/err-derive/ ↗