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#[derive(Debug)]
pub enum Error {
InvalidPath(crate::store::StorePath),
BadStorePath(std::path::PathBuf),
BadNarInfo,
BadBase32,
IOError(std::io::Error),
HttpError(reqwest::Error),
Misc(String),
Foreign(CppException),
}
impl From<std::io::Error> for Error {
fn from(err: std::io::Error) -> Self {
Error::IOError(err)
}
}
impl From<reqwest::Error> for Error {
fn from(err: reqwest::Error) -> Self {
Error::HttpError(err)
}
}
impl From<Error> for CppException {
fn from(err: Error) -> Self {
match err {
Error::InvalidPath(_) => unsafe { make_error("invalid path") }, // FIXME
Error::BadNarInfo => unsafe { make_error(".narinfo file is corrupt") }, // FIXME
Error::BadStorePath(path) => unsafe {
make_error(&format!("path '{}' is not a store path", path.display()))
}, // FIXME
Error::BadBase32 => unsafe { make_error("invalid base32 string") }, // FIXME
Error::IOError(err) => unsafe { make_error(&err.to_string()) },
Error::HttpError(err) => unsafe { make_error(&err.to_string()) },
Error::Foreign(ex) => ex,
Error::Misc(s) => unsafe { make_error(&s) },
}
}
}
#[repr(C)]
#[derive(Debug)]
pub struct CppException(*const libc::c_void); // == std::exception_ptr*
extern "C" {
#[allow(improper_ctypes)] // YOLO
fn make_error(s: &str) -> CppException;
}
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