use crate::gen::fs;
use std::error::Error as StdError;
use std::fmt::{self, Display};
pub(super) type Result<T, E = Error> = std::result::Result<T, E>;
#[derive(Debug)]
pub(super) enum Error {
MissingOutDir,
Fs(fs::Error),
}
impl Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Error::MissingOutDir => write!(f, "missing OUT_DIR environment variable"),
Error::Fs(err) => err.fmt(f),
}
}
}
impl StdError for Error {
fn source(&self) -> Option<&(dyn StdError + 'static)> {
match self {
Error::Fs(err) => err.source(),
_ => None,
}
}
}
impl From<fs::Error> for Error {
fn from(err: fs::Error) -> Self {
Error::Fs(err)
}
}