Type Alias Result

pub type Result<T, E = Report> = Result<T, E>;

type alias for Result<T, Report>

This is a reasonable return type to use throughout your application but also for fn main; if you do, failures will be printed along with a backtrace if one was captured.

eyre::Result may be used with one or two type parameters.

use eyre::Result;

fn demo1() -> Result<T> {...}
           // ^ equivalent to std::result::Result<T, eyre::Report>

fn demo2() -> Result<T, OtherError> {...}
           // ^ equivalent to std::result::Result<T, OtherError>

Example

use eyre::Result;

fn main() -> Result<()> {
    let config = std::fs::read_to_string("cluster.json")?;
    let map: ClusterMap = serde_json::from_str(&config)?;
    println!("cluster info: {:#?}", map);
    Ok(())
}

Aliased Type

enum Result<T, E = Report> {
    Ok(T),
    Err(E),
}

Variants

Ok(T)

Contains the success value

Err(E)

Contains the error value