evitable 0.2.0

Custom error types with context and derive
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

extern crate evitable;

use evitable::*;

#[derive(ErrorContext)]
pub enum Context {
  #[evitable(description = "Io")]
  Io,
}

#[test]
fn ensure() {
  fn fail() -> Result<()> {
    ensure!(false, Context::Io);

    Ok(())
  }

  let ret = fail();
  assert!(ret.is_err());
}

#[test]
fn fail() {
  fn fail() -> Result<()> {
    fail!(Context::Io);

    Ok(())
  }

  let ret = fail();
  assert!(ret.is_err());
}