coreutils/common/util.rs
2014-06-29 23:57:54 +04:00

95 lines
2.1 KiB
Rust

/*
* This file is part of the uutils coreutils package.
*
* (c) Arcterus <arcterus@mail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
#![macro_escape]
extern crate libc;
#[macro_export]
macro_rules! show_error(
($($args:expr),+) => ({
safe_write!(&mut ::std::io::stderr(), "{}: error: ", ::NAME);
safe_writeln!(&mut ::std::io::stderr(), $($args),+);
})
)
#[macro_export]
macro_rules! eprint(
($($args:expr),+) => (safe_write!(&mut ::std::io::stderr(), $($args),+))
)
#[macro_export]
macro_rules! eprintln(
($($args:expr),+) => (safe_writeln!(&mut ::std::io::stderr(), $($args),+))
)
#[macro_export]
macro_rules! show_warning(
($($args:expr),+) => ({
safe_write!(&mut ::std::io::stderr(), "{}: warning: ", ::NAME);
safe_writeln!(&mut ::std::io::stderr(), $($args),+);
})
)
#[macro_export]
macro_rules! crash(
($exitcode:expr, $($args:expr),+) => ({
safe_write!(&mut ::std::io::stderr(), "{}: error: ", ::NAME);
safe_writeln!(&mut ::std::io::stderr(), $($args),+);
unsafe { ::util::libc::exit($exitcode as ::util::libc::c_int); }
})
)
#[macro_export]
macro_rules! exit(
($exitcode:expr) => ({
unsafe { ::util::libc::exit($exitcode); }
})
)
#[macro_export]
macro_rules! crash_if_err(
($exitcode:expr, $exp:expr) => (
match $exp {
Ok(m) => m,
Err(f) => crash!($exitcode, "{}", f.to_str())
}
)
)
#[macro_export]
macro_rules! safe_write(
($fd:expr, $($args:expr),+) => (
match write!($fd, $($args),+) {
Ok(_) => {}
Err(f) => { fail!(f.to_str()); }
}
)
)
#[macro_export]
macro_rules! safe_writeln(
($fd:expr, $($args:expr),+) => (
match writeln!($fd, $($args),+) {
Ok(_) => {}
Err(f) => { fail!(f.to_str()); }
}
)
)
#[macro_export]
macro_rules! safe_unwrap(
($exp:expr) => (
match $exp {
Ok(m) => m,
Err(f) => crash!(1, "{}", f.to_str())
}
)
)