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@tailhook

tailhook/error_context_old.rs

Last active May 18, 2016 09:31
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error_context_old.rs
enum Error {
Io(io::Error),
Parse(ParseIntError),
}
// ...
try!(File::open(fname)
.and_then(|mut f| f.read_to_string(&mut buf))
.map_err(|e| Error::Io(e, fname.to_path_buf())));
let x: u64 = try!(buf.parse()
.map_err(|e| Error::Parse(e, fname.to_path_buf())));
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