forked from lix-project/lix
65 lines
1.8 KiB
Rust
65 lines
1.8 KiB
Rust
use std::fmt;
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#[derive(Debug)]
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pub enum Error {
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InvalidPath(crate::store::StorePath),
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BadStorePath(std::path::PathBuf),
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BadNarInfo,
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BadBase32,
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StorePathNameTooLong,
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BadStorePathName,
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IOError(std::io::Error),
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HttpError(reqwest::Error),
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Misc(String),
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Foreign(CppException),
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}
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impl From<std::io::Error> for Error {
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fn from(err: std::io::Error) -> Self {
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Error::IOError(err)
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}
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}
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impl From<reqwest::Error> for Error {
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fn from(err: reqwest::Error) -> Self {
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Error::HttpError(err)
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}
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}
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impl fmt::Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Error::InvalidPath(_) => write!(f, "invalid path"),
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Error::BadNarInfo => write!(f, ".narinfo file is corrupt"),
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Error::BadStorePath(path) => write!(f, "path '{}' is not a store path", path.display()),
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Error::BadBase32 => write!(f, "invalid base32 string"),
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Error::StorePathNameTooLong => {
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write!(f, "store path name is longer than 211 characters")
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}
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Error::BadStorePathName => write!(f, "store path name contains forbidden character"),
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Error::IOError(err) => write!(f, "I/O error: {}", err),
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Error::HttpError(err) => write!(f, "HTTP error: {}", err),
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Error::Foreign(_) => write!(f, "<C++ exception>"), // FIXME
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Error::Misc(s) => write!(f, "{}", s),
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}
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}
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}
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impl From<Error> for CppException {
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fn from(err: Error) -> Self {
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match err {
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Error::Foreign(ex) => ex,
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_ => unsafe { make_error(&err.to_string()) },
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}
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}
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}
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#[repr(C)]
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#[derive(Debug)]
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pub struct CppException(*const libc::c_void); // == std::exception_ptr*
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extern "C" {
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#[allow(improper_ctypes)] // YOLO
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fn make_error(s: &str) -> CppException;
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}
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