thiserror-ext

Crates.iothiserror-ext
lib.rsthiserror-ext
version0.2.1
sourcesrc
created_at2023-11-02 11:29:43.135378
updated_at2024-11-20 09:22:40.592728
descriptionUseful extension utilities for `thiserror`.
homepage
repositoryhttps://github.com/risingwavelabs/thiserror-ext
max_upload_size
id1022543
size59,339
Bugen Zhao (BugenZhao)

documentation

README

thiserror-ext

Crate Docs

Useful extension utilities for thiserror. See the documentation for more details.

#[derive(
    Debug,
    thiserror::Error,
    thiserror_ext::Box,
    thiserror_ext::Construct,
    thiserror_ext::ContextInto,
    thiserror_ext::Macro,
)]
#[thiserror_ext(
    newtype(name = Error, backtrace),
    macro(path = "crate::foo"),
)]
enum ErrorKind {
    #[error("cannot parse int from `{from}`")]
    Parse {
        source: std::num::ParseIntError,
        from: String,
    },

    #[error("not yet implemented: {msg}")]
    NotImplemented {
        issue: Option<i32>,
        #[message] msg: String,
    },

    #[error("internal error: {0}")]
    Internal(String),
}

// `thiserror_ext::Construct`
let error: Error = Error::internal("oops");

// `thiserror_ext::Box`
assert_eq!(std::mem::size_of::<Error>(), std::mem::size_of::<usize>());
let bt: &Backtrace = std::error::request_ref(&error).unwrap();

// `thiserror_ext::ContextInto`
let result: Result<i32, Error> = "foo".parse().into_parse("foo");

// `thiserror_ext::AsReport`
//
// "cannot parse int from `foo`: invalid digit found in string"
println!("{}", result.unwrap_err().as_report());

// `thiserror_ext::Macro`
bail_not_implemented!(issue = 42, "an {} feature", "awesome");
Commit count: 68

cargo fmt