https://github.com/mitsuhiko/rust-incidents

Even more error handling experiments in Rust.
https://github.com/mitsuhiko/rust-incidents

Last synced: 3 months ago
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Even more error handling experiments in Rust.

• Host: GitHub
• URL: https://github.com/mitsuhiko/rust-incidents
• Owner: mitsuhiko
• License: other
• Created: 2014-11-20T15:08:03.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2015-06-19T13:25:48.000Z (over 9 years ago)
• Last Synced: 2024-05-08T21:52:56.378Z (8 months ago)
• Language: Rust
• Homepage: http://mitsuhiko.github.io/rust-incidents/
• Size: 939 KB
• Stars: 17
• Watchers: 2
• Forks: 4
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# rust-incidents

This library provides an experiment for error handling in Rust.

It provides efficient error handling and provides powerful debugging

features.

- keeps results small by providing a de-refable failure type

- provides support for python-style tracebacks in debug builds

- allows errors to be freely convertible between each other through

  the `FromError` trait.

- provides a flexible trait for error interoperability.

```rust

struct BadOperation {

    desc: &str,

}

impl Error for BadOperation {

    fn name(&self) -> &str { "Bad Operation" }

    fn description(&self) -> Option<&str> { Some(self.desc) }

}

fn something_that_fails(good: bool) -> FResult {

    if !good {

        fail!(BadOperation { desc: "Something wend badly wrong" });

    }

    Ok(42)

}

fn function_that_tries() -> FResult {

    let rv = try!(function_that_fails());

    Ok(rv + 42)

}

```