1/// An error type representing the failure to load libwayland
2#[derive(Debug)]
3pub struct NoWaylandLib;
4
5impl std::error::Error for NoWaylandLib {}
6
7impl std::fmt::Display for NoWaylandLib {
8 #[cfg_attr(coverage, coverage(off))]
9 fn fmt(&self, f: &mut ::std::fmt::Formatter) -> Result<(), ::std::fmt::Error> {
10 f.write_str(data:"could not load libwayland-client.so")
11 }
12}
13
14/// An error that can occur when using a Wayland connection
15#[derive(Debug)]
16pub enum WaylandError {
17 /// The connection encountered an IO error
18 Io(std::io::Error),
19 /// The connection encountered a protocol error
20 Protocol(crate::protocol::ProtocolError),
21}
22
23impl std::error::Error for WaylandError {
24 #[cfg_attr(coverage, coverage(off))]
25 fn cause(&self) -> Option<&dyn std::error::Error> {
26 match self {
27 Self::Io(e: &Error) => Some(e),
28 Self::Protocol(e: &ProtocolError) => Some(e),
29 }
30 }
31}
32
33impl std::fmt::Display for WaylandError {
34 #[cfg_attr(coverage, coverage(off))]
35 fn fmt(&self, f: &mut ::std::fmt::Formatter) -> Result<(), ::std::fmt::Error> {
36 match self {
37 Self::Io(e: &Error) => write!(f, "Io error: {}", e),
38 Self::Protocol(e: &ProtocolError) => std::fmt::Display::fmt(self:e, f),
39 }
40 }
41}
42
43impl Clone for WaylandError {
44 #[cfg_attr(coverage, coverage(off))]
45 fn clone(&self) -> Self {
46 match self {
47 Self::Protocol(e: &ProtocolError) => Self::Protocol(e.clone()),
48 Self::Io(e: &Error) => {
49 if let Some(code: i32) = e.raw_os_error() {
50 Self::Io(std::io::Error::from_raw_os_error(code))
51 } else {
52 Self::Io(std::io::Error::new(e.kind(), error:""))
53 }
54 }
55 }
56 }
57}
58
59impl From<crate::protocol::ProtocolError> for WaylandError {
60 #[cfg_attr(coverage, coverage(off))]
61 fn from(err: crate::protocol::ProtocolError) -> Self {
62 Self::Protocol(err)
63 }
64}
65
66impl From<std::io::Error> for WaylandError {
67 #[cfg_attr(coverage, coverage(off))]
68 fn from(err: std::io::Error) -> Self {
69 Self::Io(err)
70 }
71}
72
73/// An error generated when trying to act on an invalid `ObjectId`.
74#[derive(Clone, Debug)]
75pub struct InvalidId;
76
77impl std::error::Error for InvalidId {}
78
79impl std::fmt::Display for InvalidId {
80 #[cfg_attr(coverage, coverage(off))]
81 fn fmt(&self, f: &mut ::std::fmt::Formatter) -> Result<(), ::std::fmt::Error> {
82 write!(f, "Invalid ObjectId")
83 }
84}
85