wayland_backend/types/
client.rs

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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("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) => Some(e),
28            Self::Protocol(e) => 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) => write!(f, "Io error: {}", e),
38            Self::Protocol(e) => std::fmt::Display::fmt(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) => Self::Protocol(e.clone()),
48            Self::Io(e) => {
49                if let Some(code) = 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(), ""))
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}
wayland_backend/types/client.rs

wayland_backend/types/
client.rs
