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use crate::pyobject::{ItemProtocol, PyObjectRef};
use crate::VirtualMachine;

pub fn make_module(vm: &VirtualMachine) -> PyObjectRef {
    let errorcode = vm.ctx.new_dict();
    let module = py_module!(vm, "errno", {
        "errorcode" => errorcode.clone(),
    });
    for (name, code) in ERROR_CODES {
        let name = vm.new_str((*name).to_owned());
        let code = vm.ctx.new_int(*code);
        errorcode.set_item(&code, name.clone(), vm).unwrap();
        vm.set_attr(&module, name, code).unwrap();
    }
    module
}

#[rustfmt::skip]
#[allow(unused)]
pub mod errors {
    pub use libc::*;
    #[cfg(windows)]
    pub use winapi::shared::winerror::*;
    #[cfg(windows)] pub const EACCES: i32 = WSAEACCES as _;
    #[cfg(windows)] pub const EADDRINUSE: i32 = WSAEADDRINUSE as _;
    #[cfg(windows)] pub const EADDRNOTAVAIL: i32 = WSAEADDRNOTAVAIL as _;
    #[cfg(windows)] pub const EAFNOSUPPORT: i32 = WSAEAFNOSUPPORT as _;
    #[cfg(windows)] pub const EALREADY: i32 = WSAEALREADY as _;
    #[cfg(windows)] pub const EBADF: i32 = WSAEBADF as _;
    #[cfg(windows)] pub const ECANCELED: i32 = WSAECANCELLED as _;
    #[cfg(windows)] pub const ECONNABORTED: i32 = WSAECONNABORTED as _;
    #[cfg(windows)] pub const ECONNREFUSED: i32 = WSAECONNREFUSED as _;
    #[cfg(windows)] pub const ECONNRESET: i32 = WSAECONNRESET as _;
    #[cfg(windows)] pub const EDESTADDRREQ: i32 = WSAEDESTADDRREQ as _;
    #[cfg(windows)] pub const EDISCON: i32 = WSAEDISCON as _;
    #[cfg(windows)] pub const EDQUOT: i32 = WSAEDQUOT as _;
    #[cfg(windows)] pub const EFAULT: i32 = WSAEFAULT as _;
    #[cfg(windows)] pub const EHOSTDOWN: i32 = WSAEHOSTDOWN as _;
    #[cfg(windows)] pub const EHOSTUNREACH: i32 = WSAEHOSTUNREACH as _;
    #[cfg(windows)] pub const EINPROGRESS: i32 = WSAEINPROGRESS as _;
    #[cfg(windows)] pub const EINTR: i32 = WSAEINTR as _;
    #[cfg(windows)] pub const EINVAL: i32 = WSAEINVAL as _;
    #[cfg(windows)] pub const EINVALIDPROCTABLE: i32 = WSAEINVALIDPROCTABLE as _;
    #[cfg(windows)] pub const EINVALIDPROVIDER: i32 = WSAEINVALIDPROVIDER as _;
    #[cfg(windows)] pub const EISCONN: i32 = WSAEISCONN as _;
    #[cfg(windows)] pub const ELOOP: i32 = WSAELOOP as _;
    #[cfg(windows)] pub const EMFILE: i32 = WSAEMFILE as _;
    #[cfg(windows)] pub const EMSGSIZE: i32 = WSAEMSGSIZE as _;
    #[cfg(windows)] pub const ENAMETOOLONG: i32 = WSAENAMETOOLONG as _;
    #[cfg(windows)] pub const ENETDOWN: i32 = WSAENETDOWN as _;
    #[cfg(windows)] pub const ENETRESET: i32 = WSAENETRESET as _;
    #[cfg(windows)] pub const ENETUNREACH: i32 = WSAENETUNREACH as _;
    #[cfg(windows)] pub const ENOBUFS: i32 = WSAENOBUFS as _;
    #[cfg(windows)] pub const ENOMORE: i32 = WSAENOMORE as _;
    #[cfg(windows)] pub const ENOPROTOOPT: i32 = WSAENOPROTOOPT as _;
    #[cfg(windows)] pub const ENOTCONN: i32 = WSAENOTCONN as _;
    #[cfg(windows)] pub const ENOTEMPTY: i32 = WSAENOTEMPTY as _;
    #[cfg(windows)] pub const ENOTSOCK: i32 = WSAENOTSOCK as _;
    #[cfg(windows)] pub const EOPNOTSUPP: i32 = WSAEOPNOTSUPP as _;
    #[cfg(windows)] pub const EPFNOSUPPORT: i32 = WSAEPFNOSUPPORT as _;
    #[cfg(windows)] pub const EPROCLIM: i32 = WSAEPROCLIM as _;
    #[cfg(windows)] pub const EPROTONOSUPPORT: i32 = WSAEPROTONOSUPPORT as _;
    #[cfg(windows)] pub const EPROTOTYPE: i32 = WSAEPROTOTYPE as _;
    #[cfg(windows)] pub const EPROVIDERFAILEDINIT: i32 = WSAEPROVIDERFAILEDINIT as _;
    #[cfg(windows)] pub const EREFUSED: i32 = WSAEREFUSED as _;
    #[cfg(windows)] pub const EREMOTE: i32 = WSAEREMOTE as _;
    #[cfg(windows)] pub const ESHUTDOWN: i32 = WSAESHUTDOWN as _;
    #[cfg(windows)] pub const ESOCKTNOSUPPORT: i32 = WSAESOCKTNOSUPPORT as _;
    #[cfg(windows)] pub const ESTALE: i32 = WSAESTALE as _;
    #[cfg(windows)] pub const ETIMEDOUT: i32 = WSAETIMEDOUT as _;
    #[cfg(windows)] pub const ETOOMANYREFS: i32 = WSAETOOMANYREFS as _;
    #[cfg(windows)] pub const EUSERS: i32 = WSAEUSERS as _;
    #[cfg(windows)] pub const EWOULDBLOCK: i32 = WSAEWOULDBLOCK as _;
}

macro_rules! e {
    ($name:ident) => {
        (stringify!($name), errors::$name as _)
    };
    (cfg($($cfg:tt)*), $name:ident) => {
        #[cfg($($cfg)*)]
        (stringify!($name), errors::$name as _)
    };
}

#[cfg(any(unix, windows))]
const ERROR_CODES: &[(&str, i32)] = &[
    e!(ENODEV),
    e!(EHOSTUNREACH),
    e!(cfg(not(windows)), ENOMSG),
    e!(cfg(not(windows)), ENODATA),
    e!(cfg(not(windows)), ENOTBLK),
    e!(ENOSYS),
    e!(EPIPE),
    e!(EINVAL),
    e!(cfg(not(windows)), EOVERFLOW),
    e!(EINTR),
    e!(EUSERS),
    e!(ENOTEMPTY),
    e!(ENOBUFS),
    e!(cfg(not(windows)), EPROTO),
    e!(EREMOTE),
    e!(ECHILD),
    e!(ELOOP),
    e!(EXDEV),
    e!(E2BIG),
    e!(ESRCH),
    e!(EMSGSIZE),
    e!(EAFNOSUPPORT),
    e!(EHOSTDOWN),
    e!(EPFNOSUPPORT),
    e!(ENOPROTOOPT),
    e!(EBUSY),
    e!(EAGAIN),
    e!(EISCONN),
    e!(ESHUTDOWN),
    e!(EBADF),
    e!(cfg(not(windows)), EMULTIHOP),
    e!(EIO),
    e!(EPROTOTYPE),
    e!(ENOSPC),
    e!(ENOEXEC),
    e!(EALREADY),
    e!(ENETDOWN),
    e!(EACCES),
    e!(EILSEQ),
    e!(ENOTDIR),
    e!(EPERM),
    e!(EDOM),
    e!(ECONNREFUSED),
    e!(EISDIR),
    e!(EPROTONOSUPPORT),
    e!(EROFS),
    e!(EADDRNOTAVAIL),
    e!(cfg(not(windows)), EIDRM),
    e!(cfg(not(windows)), EBADMSG),
    e!(ENFILE),
    e!(ESPIPE),
    e!(cfg(not(windows)), ENOLINK),
    e!(ENETRESET),
    e!(ETIMEDOUT),
    e!(ENOENT),
    e!(EEXIST),
    e!(EDQUOT),
    e!(cfg(not(windows)), ENOSTR),
    e!(EFAULT),
    e!(EFBIG),
    e!(ENOTCONN),
    e!(EDESTADDRREQ),
    e!(ENOLCK),
    e!(ECONNABORTED),
    e!(ENETUNREACH),
    e!(ESTALE),
    e!(cfg(not(windows)), ENOSR),
    e!(ENOMEM),
    e!(ENOTSOCK),
    e!(EMLINK),
    e!(ERANGE),
    e!(ECONNRESET),
    e!(EADDRINUSE),
    e!(cfg(not(any(target_os = "redox", windows))), ENOTSUP),
    e!(ENAMETOOLONG),
    e!(ENOTTY),
    e!(ESOCKTNOSUPPORT),
    e!(cfg(not(windows)), ETIME),
    e!(ETOOMANYREFS),
    e!(EMFILE),
    e!(cfg(not(windows)), ETXTBSY),
    e!(EINPROGRESS),
    e!(ENXIO),
    e!(ECANCELED),
    e!(EWOULDBLOCK),
    e!(cfg(not(windows)), EOWNERDEAD),
    e!(cfg(not(windows)), ENOTRECOVERABLE),
    e!(cfg(windows), WSAEAFNOSUPPORT),
    e!(cfg(windows), WSAEHOSTDOWN),
    e!(cfg(windows), WSAEPFNOSUPPORT),
    e!(cfg(windows), WSAENOPROTOOPT),
    e!(cfg(windows), WSAEISCONN),
    e!(cfg(windows), WSAESHUTDOWN),
    e!(cfg(windows), WSAEINVAL),
    e!(cfg(windows), WSAEBADF),
    e!(cfg(windows), WSAENAMETOOLONG),
    e!(cfg(windows), WSAEPROCLIM),
    e!(cfg(windows), WSAEMFILE),
    e!(cfg(windows), WSAEINPROGRESS),
    e!(cfg(windows), WSAETOOMANYREFS),
    e!(cfg(windows), WSAESOCKTNOSUPPORT),
    e!(cfg(windows), WSAECONNRESET),
    e!(cfg(windows), WSAENOTSOCK),
    e!(cfg(windows), WSAECONNABORTED),
    e!(cfg(windows), WSAENOTCONN),
    e!(cfg(windows), WSAEDQUOT),
    e!(cfg(windows), WSAENETRESET),
    e!(cfg(windows), WSAEADDRNOTAVAIL),
    e!(cfg(windows), WSAEPROTONOSUPPORT),
    e!(cfg(windows), WSAECONNREFUSED),
    e!(cfg(windows), WSAEALREADY),
    e!(cfg(windows), WSAEPROTOTYPE),
    e!(cfg(windows), WSAEWOULDBLOCK),
    e!(cfg(windows), WSAEMSGSIZE),
    e!(cfg(windows), WSAELOOP),
    e!(cfg(windows), WSAEREMOTE),
    e!(cfg(windows), WSAENOBUFS),
    e!(cfg(windows), WSAEUSERS),
    e!(cfg(windows), WSAEHOSTUNREACH),
    e!(cfg(windows), WSAENETDOWN),
    e!(cfg(windows), WSAETIMEDOUT),
    e!(cfg(windows), WSAEDESTADDRREQ),
    e!(cfg(windows), WSAENETUNREACH),
    e!(cfg(windows), WSAESTALE),
    e!(cfg(windows), WSAEADDRINUSE),
    e!(cfg(windows), WSAEOPNOTSUPP),
    e!(cfg(windows), WSAEFAULT),
    e!(cfg(windows), WSAENOTEMPTY),
    e!(cfg(windows), WSAEACCES),
    e!(cfg(windows), WSAEDISCON),
    e!(cfg(windows), WSAEINTR),
];

#[cfg(not(any(unix, windows)))]
const ERROR_CODES: &[(&str, i32)] = &[];