rust/src/libstd/rt/macros.rs
2015-01-06 18:46:37 -05:00

52 lines
1.5 KiB
Rust

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Macros used by the runtime.
//!
//! These macros call functions which are only accessible in the `rt` module, so
//! they aren't defined anywhere outside of the `rt` module.
macro_rules! rterrln {
($fmt:expr) => ( {
::rt::util::dumb_print(format_args!(concat!($fmt, "\n")))
} );
($fmt:expr, $($arg:expr),*) => ( {
::rt::util::dumb_print(format_args!(concat!($fmt, "\n"), $($arg)*))
} )
}
// Some basic logging. Enabled by passing `--cfg rtdebug` to the libstd build.
macro_rules! rtdebug {
($arg:expr) => ( {
if cfg!(rtdebug) {
rterrln!($arg)
}
} );
($str:expr, $($arg:expr),*) => ( {
if cfg!(rtdebug) {
rterrln!($str, $($arg)*)
}
})
}
macro_rules! rtassert {
( $arg:expr ) => ( {
if ::rt::util::ENFORCE_SANITY {
if !$arg {
rtabort!(" assertion failed: {}", stringify!($arg));
}
}
} )
}
macro_rules! rtabort {
($($arg:tt)*) => (::rt::util::abort(format_args!($($arg)*)))
}