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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
use std::error::Error;
use std::fmt;
use std::io;
use ffi::enums::Status;
#[derive(Debug)]
pub enum BorrowError {
Cairo(Status),
NonExclusive,
}
impl From<Status> for BorrowError {
fn from(status: Status) -> Self {
BorrowError::Cairo(status)
}
}
impl fmt::Display for BorrowError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
BorrowError::Cairo(status) => write!(f, "BorrowError::Cairo({:?})", status),
BorrowError::NonExclusive => write!(f, "BorrowError::NonExclusive" ),
}
}
}
impl Error for BorrowError {
fn description(&self) -> &str {
match *self {
BorrowError::Cairo(_) => "BorrowError::Cairo",
BorrowError::NonExclusive => "BorrowError::NonExclusive",
}
}
fn cause(&self) -> Option<&Error> {
None
}
}
#[derive(Debug)]
pub enum IoError {
Cairo(Status),
Io(io::Error),
}
impl From<Status> for IoError {
fn from(status: Status) -> Self {
IoError::Cairo(status)
}
}
impl fmt::Display for IoError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
IoError::Cairo(status) => write!(f, "IoError::Cairo({:?})", status),
IoError::Io(ref e) => write!(f, "IoError::Io({})", e),
}
}
}
impl Error for IoError {
fn description(&self) -> &str {
match *self {
IoError::Cairo(_) => "IoError::Cairo",
IoError::Io(ref e) => e.description(),
}
}
fn cause(&self) -> Option<&Error> {
match *self {
IoError::Cairo(_) => None,
IoError::Io(ref e) => Some(e),
}
}
}