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use std::io;
pub trait IntoIOError {
fn ioerr(self) -> io::Error;
fn perror(self, parent: io::Error) -> io::Error;
}
// This impl bound is taken directly from the io::Error::new function.
impl<E: Into<Box<dyn std::error::Error + Send + Sync>>> IntoIOError for E {
fn ioerr(self) -> io::Error {
io::Error::new(io::ErrorKind::Other, self)
}
fn perror(self, parent: io::Error) -> io::Error {
io::Error::new(parent.kind(), format!("{}: {}", self.into(), parent))
}
}
pub trait IntoIOResult<T> {
fn iores(self) -> io::Result<T>;
}
impl<T, E: IntoIOError> IntoIOResult<T> for Result<T, E> {
fn iores(self) -> io::Result<T> {
self.map_err(|e| e.ioerr())
}
}
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