Crate pisserror 

pisserror

A golden replacement for thiserror.

Usage

You’ll likely find pisserror to be pretty familiar. As with thiserror, it derives Error for any enum you give to it. Here’s a sample of its current usage:

use pisserror::Error;
use std::error::Error; // we don't mess with your prelude :D

#[derive(Debug, Error)]
pub enum DatabaseError {
    #[error("encountered a disk error. see: {_0}")]
    DiskError(#[from] std::io::Error),
    #[error("key `{_0}` has no matching data records")]
    KeyNotFound(String),
    #[error("attempted to store a malformed header. expected: `{expected:?}`. got: `{got:?}`")]
    MalformedHeader {
        expected: String,
        got: String,
    },
    #[error("other error: {_0}")]
    Other(String),
}

Also, you may wish to note that pisserror works with #![no_std]/embedded projects! Just ask cargo add to not use default features, like cargo add pisserror --no-default-features.

Alternatively, you can add it to Cargo.toml by adding default-features = false:

[dependencies]
pisserror = { version = (your version), default-features = false }

Feature Requests and Problems

If there’s something wrong or missing, please create a GitHub issue! Make sure to thoroughly describe your intentions.

Contributions

Contributions are welcome! Please create a PR and explain the changes you made.

There are a few ground rules, though:

• All contributions are bound by the license.
• Commits must be in Conventional Commits format. Feel free to interpret the rules a bit, though!
• Document and test your work.

Making a Release

There are only a few steps to releasing this crate.

1. Generate the README.md file using cargo-rdme.
2. Change the version numbers in /Cargo.toml and /macros/Cargo.toml.
   • Under the dependencies.pisserror_macros section, you must also change the version number to match the new release.
3. Run cargo publish!

Derive Macros

Error

Derives core::error::Error from special syntax.