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use std::ffi::{
OsStr,
OsString,
};
use std::fmt::Display;
use std::ops::Deref;
use std::path::Path;
use std::sync::OnceLock;
use std::{
env,
process,
};
pub fn progname() -> &'static OsString {
static ARGV0: OnceLock<OsString> = OnceLock::new();
return ARGV0.get_or_init(|| {
let default = OsStr::new("oryxc");
let s = env::args_os().next().unwrap_or(default.into());
return Path::new(&s).file_name().unwrap_or(default).to_os_string();
});
}
#[macro_export]
macro_rules! warn {
($err:expr, $fmt:literal, $($arg:tt)*) => {{
use crate::errors::progname;
let _ = eprintln!("{}: {}: {}", progname().display(),
format_args!($fmt, $($arg)*), $err);
}};
($err:expr, $fmt:literal) => {{
warn!($err, $fmt,);
}};
($err:expr) => {{
use crate::errors::progname;
let _ = eprintln!("{}: {}", progname().display(), $err);
}};
}
#[macro_export]
macro_rules! err {
($err:expr, $fmt:literal, $($arg:tt)*) => {{
use crate::warn;
warn!($err, $fmt, $($arg)*);
std::process::exit(1);
}};
($err:expr, $fmt:literal) => {{
err!($err, $fmt,);
}};
($err:expr) => {{
use crate::warn;
warn!($err);
std::process::exit(1);
}};
}
pub fn err_at_position<T, S>(filename: T, s: S) -> !
where
T: Deref<Target = OsStr>,
S: Display,
{
eprintln!("{}: \x1b[31;1mError:\x1b[0m {}", filename.display(), s);
process::exit(1);
}
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