===========

Quick Error

:Documentation: http://tailhook.github.io/quick-error/

A macro which makes error types pleasant to write.

Features:

• Define enum type with arbitrary parameters (not struct variants for now)
• Concise notation of Display and Error traits
• Full control of Display and Error trait implementation
• Any number of From traits

Here is the comprehensive example:

.. code-block:: rust

quick_error! {
    #[derive(Debug)]
    pub enum IoWrapper {
        Io(err: io::Error) {
            from()
            description("io error")
            display("I/O error: {}", err)
            cause(err)
        }
        Other(descr: &'static str) {
            description(descr)
            display("Error {}", descr)
        }
        IoAt(place: &'static str, err: io::Error) {
            cause(err)
            display(me) -> ("{} {}: {}", me.description(), place, err)
            description("io error at")
            from(s: String) -> ("some string",
                                io::Error::new(io::ErrorKind::Other, s))
        }
        Discard {
            from(&'static str)
        }
    }
}