use crate::IntoPyObject;
use crate::{err::PyErrArguments, exceptions, PyErr, PyObject, Python};
use std::io;
impl From<PyErr> for io::Error {
fn from(err: PyErr) -> Self {
let kind = Python::with_gil(|py| {
if err.is_instance_of::<exceptions::PyBrokenPipeError>(py) {
io::ErrorKind::BrokenPipe
} else if err.is_instance_of::<exceptions::PyConnectionRefusedError>(py) {
io::ErrorKind::ConnectionRefused
} else if err.is_instance_of::<exceptions::PyConnectionAbortedError>(py) {
io::ErrorKind::ConnectionAborted
} else if err.is_instance_of::<exceptions::PyConnectionResetError>(py) {
io::ErrorKind::ConnectionReset
} else if err.is_instance_of::<exceptions::PyInterruptedError>(py) {
io::ErrorKind::Interrupted
} else if err.is_instance_of::<exceptions::PyFileNotFoundError>(py) {
io::ErrorKind::NotFound
} else if err.is_instance_of::<exceptions::PyPermissionError>(py) {
io::ErrorKind::PermissionDenied
} else if err.is_instance_of::<exceptions::PyFileExistsError>(py) {
io::ErrorKind::AlreadyExists
} else if err.is_instance_of::<exceptions::PyBlockingIOError>(py) {
io::ErrorKind::WouldBlock
} else if err.is_instance_of::<exceptions::PyTimeoutError>(py) {
io::ErrorKind::TimedOut
} else {
#[cfg(io_error_more)]
if err.is_instance_of::<exceptions::PyIsADirectoryError>(py) {
io::ErrorKind::IsADirectory
} else if err.is_instance_of::<exceptions::PyNotADirectoryError>(py) {
io::ErrorKind::NotADirectory
} else {
io::ErrorKind::Other
}
#[cfg(not(io_error_more))]
io::ErrorKind::Other
}
});
io::Error::new(kind, err)
}
}
impl From<io::Error> for PyErr {
fn from(err: io::Error) -> PyErr {
if err.get_ref().map_or(false, |e| e.is::<PyErr>()) {
return *err.into_inner().unwrap().downcast().unwrap();
}
match err.kind() {
io::ErrorKind::BrokenPipe => exceptions::PyBrokenPipeError::new_err(err),
io::ErrorKind::ConnectionRefused => exceptions::PyConnectionRefusedError::new_err(err),
io::ErrorKind::ConnectionAborted => exceptions::PyConnectionAbortedError::new_err(err),
io::ErrorKind::ConnectionReset => exceptions::PyConnectionResetError::new_err(err),
io::ErrorKind::Interrupted => exceptions::PyInterruptedError::new_err(err),
io::ErrorKind::NotFound => exceptions::PyFileNotFoundError::new_err(err),
io::ErrorKind::PermissionDenied => exceptions::PyPermissionError::new_err(err),
io::ErrorKind::AlreadyExists => exceptions::PyFileExistsError::new_err(err),
io::ErrorKind::WouldBlock => exceptions::PyBlockingIOError::new_err(err),
io::ErrorKind::TimedOut => exceptions::PyTimeoutError::new_err(err),
#[cfg(io_error_more)]
io::ErrorKind::IsADirectory => exceptions::PyIsADirectoryError::new_err(err),
#[cfg(io_error_more)]
io::ErrorKind::NotADirectory => exceptions::PyNotADirectoryError::new_err(err),
_ => exceptions::PyOSError::new_err(err),
}
}
}
impl PyErrArguments for io::Error {
fn arguments(self, py: Python<'_>) -> PyObject {
self.to_string()
.into_pyobject(py)
.unwrap()
.into_any()
.unbind()
}
}
impl<W> From<io::IntoInnerError<W>> for PyErr {
fn from(err: io::IntoInnerError<W>) -> PyErr {
err.into_error().into()
}
}
impl<W: Send + Sync> PyErrArguments for io::IntoInnerError<W> {
fn arguments(self, py: Python<'_>) -> PyObject {
self.into_error().arguments(py)
}
}
impl From<std::convert::Infallible> for PyErr {
fn from(_: std::convert::Infallible) -> PyErr {
unreachable!()
}
}
macro_rules! impl_to_pyerr {
($err: ty, $pyexc: ty) => {
impl PyErrArguments for $err {
fn arguments(self, py: Python<'_>) -> PyObject {
self.to_string()
.into_pyobject(py)
.unwrap()
.into_any()
.unbind()
}
}
impl std::convert::From<$err> for PyErr {
fn from(err: $err) -> PyErr {
<$pyexc>::new_err(err)
}
}
};
}
impl_to_pyerr!(std::array::TryFromSliceError, exceptions::PyValueError);
impl_to_pyerr!(std::num::ParseIntError, exceptions::PyValueError);
impl_to_pyerr!(std::num::ParseFloatError, exceptions::PyValueError);
impl_to_pyerr!(std::num::TryFromIntError, exceptions::PyValueError);
impl_to_pyerr!(std::str::ParseBoolError, exceptions::PyValueError);
impl_to_pyerr!(std::ffi::IntoStringError, exceptions::PyUnicodeDecodeError);
impl_to_pyerr!(std::ffi::NulError, exceptions::PyValueError);
impl_to_pyerr!(std::str::Utf8Error, exceptions::PyUnicodeDecodeError);
impl_to_pyerr!(std::string::FromUtf8Error, exceptions::PyUnicodeDecodeError);
impl_to_pyerr!(
std::string::FromUtf16Error,
exceptions::PyUnicodeDecodeError
);
impl_to_pyerr!(
std::char::DecodeUtf16Error,
exceptions::PyUnicodeDecodeError
);
impl_to_pyerr!(std::net::AddrParseError, exceptions::PyValueError);
#[cfg(test)]
mod tests {
use crate::{PyErr, Python};
use std::io;
#[test]
fn io_errors() {
use crate::types::any::PyAnyMethods;
let check_err = |kind, expected_ty| {
Python::with_gil(|py| {
let rust_err = io::Error::new(kind, "some error msg");
let py_err: PyErr = rust_err.into();
let py_err_msg = format!("{}: some error msg", expected_ty);
assert_eq!(py_err.to_string(), py_err_msg);
let py_error_clone = py_err.clone_ref(py);
let rust_err_from_py_err: io::Error = py_err.into();
assert_eq!(rust_err_from_py_err.to_string(), py_err_msg);
assert_eq!(rust_err_from_py_err.kind(), kind);
let py_err_recovered_from_rust_err: PyErr = rust_err_from_py_err.into();
assert!(py_err_recovered_from_rust_err
.value(py)
.is(py_error_clone.value(py))); })
};
check_err(io::ErrorKind::BrokenPipe, "BrokenPipeError");
check_err(io::ErrorKind::ConnectionRefused, "ConnectionRefusedError");
check_err(io::ErrorKind::ConnectionAborted, "ConnectionAbortedError");
check_err(io::ErrorKind::ConnectionReset, "ConnectionResetError");
check_err(io::ErrorKind::Interrupted, "InterruptedError");
check_err(io::ErrorKind::NotFound, "FileNotFoundError");
check_err(io::ErrorKind::PermissionDenied, "PermissionError");
check_err(io::ErrorKind::AlreadyExists, "FileExistsError");
check_err(io::ErrorKind::WouldBlock, "BlockingIOError");
check_err(io::ErrorKind::TimedOut, "TimeoutError");
#[cfg(io_error_more)]
check_err(io::ErrorKind::IsADirectory, "IsADirectoryError");
#[cfg(io_error_more)]
check_err(io::ErrorKind::NotADirectory, "NotADirectoryError");
}
}