===========
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("Error at {}: {}", place, err)
description("io error at")
from(s: String) -> ("some string",
io::Error::new(io::ErrorKind::Other, s))
}
Discard {
from(&'static str)
}
}
}