Crates.io | thiserror-ext |
lib.rs | thiserror-ext |
version | 0.2.1 |
source | src |
created_at | 2023-11-02 11:29:43.135378 |
updated_at | 2024-11-20 09:22:40.592728 |
description | Useful extension utilities for `thiserror`. |
homepage | |
repository | https://github.com/risingwavelabs/thiserror-ext |
max_upload_size | |
id | 1022543 |
size | 59,339 |
thiserror-ext
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");