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/// Common error type for file operations.
use std::error::Error;
use std::fmt;
use std::io;
use std::path::{Path, PathBuf};
/// Common error type for file operations.
#[derive(Debug)]
pub(crate) struct FileError {
path: PathBuf,
source: io::Error,
}
impl FileError {
/// Returns a new `io::Error` backed by a `FileError`.
pub fn new<P: AsRef<Path>>(path: P, source: io::Error) -> io::Error {
io::Error::new(source.kind(), FileError {
path: path.as_ref().into(),
source,
})
}
}
impl fmt::Display for FileError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "Reading {:?}: {}", self.path.display(), self.source)
}
}
impl Error for FileError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
Some(&self.source)
}
}
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