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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
use std::{io, fmt};
#[derive(Debug)]
pub enum Error {
Io(io::Error),
UnclosedSection(Box<str>),
UnclosedTag,
}
impl From<io::Error> for Error {
fn from(err: io::Error) -> Self {
Error::Io(err)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Error::Io(err) => {
err.fmt(f)
},
Error::UnclosedSection(name) => {
write!(f, "Section not closed properly, was expecting {{{{/{}}}}}", name)
},
Error::UnclosedTag => {
write!(f, "Couldn't find closing braces matching opening braces")
},
}
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn displays_properly() {
assert_eq!(Error::UnclosedSection("foo".into()).to_string(), "Section not closed properly, was expecting {{/foo}}");
assert_eq!(Error::UnclosedTag.to_string(), "Couldn't find closing braces matching opening braces");
}
}