midl-parser 0.1.1

MIDL parser for frodobuf
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

use std::error::Error;
use std::fmt;
use std::io;

#[derive(Debug)]
struct IoErrorWithMessage {
    message: String,
    underlying: io::Error,
}

impl fmt::Display for IoErrorWithMessage {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        write!(f, "{}: {}", self.message, self.underlying)
    }
}

impl Error for IoErrorWithMessage {
    fn description(&self) -> &str {
        &self.message
    }

    fn cause(&self) -> Option<&dyn Error> {
        Some(&self.underlying)
    }
}

pub fn amend_io_error<M: Into<String>>(error: io::Error, message: M) -> io::Error {
    io::Error::new(
        error.kind(),
        Box::new(IoErrorWithMessage {
            message: message.into(),
            underlying: error,
        }),
    )
}