which/
error.rs

1use std::fmt;
2
3pub type Result<T> = std::result::Result<T, Error>;
4
5#[derive(Copy, Clone, Eq, PartialEq, Debug)]
6pub enum Error {
7    BadAbsolutePath,
8    BadRelativePath,
9    CannotFindBinaryPath,
10    CannotGetCurrentDir,
11    CannotCanonicalize,
12}
13
14impl std::error::Error for Error {}
15
16impl fmt::Display for Error {
17    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
18        match self {
19            Error::BadAbsolutePath => write!(f, "bad absolute path"),
20            Error::BadRelativePath => write!(f, "bad relative path"),
21            Error::CannotFindBinaryPath => write!(f, "cannot find binary path"),
22            Error::CannotGetCurrentDir => write!(f, "cannot get current directory"),
23            Error::CannotCanonicalize => write!(f, "cannot canonicalize path"),
24        }
25    }
26}
which/error.rs

which/
error.rs
