ace_it 0.1.1

Macro to automate wrapping types into enums
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
34
35
36
37

# ace_it

### Auto Convert Enums

## Description

Just a small proc_macro to automatically generate From trait impls for each unnamed variant of an enum

## Usage


Cargo.toml:
```toml
[dependencies]
ace_it = "0.1"
```

## Example

```rs
#[macro_use]

extern crate ace_it;

#[derive(Debug)]

#[ace_it]

enum Error {
  Io(std::io::Error),
  ParseInt(std::num::ParseIntError),
  ParseFloat(std::num::ParseFloatError),
}

use std::io::Read;

fn read_int<R: Read>(reader: &mut R) -> Result<i32, Error> {
    let mut buf = String::new();
    reader.read_to_string(&mut buf)?;
    Ok(buf.parse()?)
}
```

## Future features

* Attribute for ignoring a variant