rust_minifb/src/error.rs
Lev Eniseev 096147f288
Change Error to use custom fmt::Debug messages (#152)
std::error::Error::description is deprecated, so I changed the
fmt::Display implementation to rely on fmt::Debug implementation, which,
in turn, return human-readable messages like description was doing
2020-03-18 18:53:24 +01:00

37 lines
1.2 KiB
Rust

use std::fmt;
/// Errors that can be returned from various operations
///
pub enum Error {
/// Returned if menu Menu function isn't supported
MenusNotSupported,
/// Menu already exists
MenuExists(String),
/// Menu already exists
WindowCreate(String),
/// Unable to Update
UpdateFailed(String),
}
impl fmt::Debug for Error {
fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
Error::MenusNotSupported => write!(formatter, "Menus not supported"),
Error::MenuExists(_) => write!(formatter, "Menu already exists"),
Error::WindowCreate(_) => write!(formatter, "Failed to create window"),
Error::UpdateFailed(_) => write!(formatter, "Failed to Update"),
}
}
}
impl fmt::Display for Error {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
match *self {
Error::MenusNotSupported => write!(fmt, "{:?}", self),
Error::MenuExists(ref e) => write!(fmt, "{:?} {:?}", self, e),
Error::WindowCreate(ref e) => write!(fmt, "{:?} {:?}", self, e),
Error::UpdateFailed(ref e) => write!(fmt, "{:?} {:?}", self, e),
}
}
}