1 files changed, 53 insertions, 0 deletions
diff --git a/src/libstd/macros.rs b/src/libstd/macros.rs
new file mode 100644
index 00000000000..fda48b6ffb7
--- /dev/null
+++ b/src/libstd/macros.rs
@@ -0,0 +1,53 @@
+// 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.
+
+#[macro_escape];
+
+// Some basic logging
+macro_rules! rtdebug_ (
+    ($( $arg:expr),+) => ( {
+        dumb_println(fmt!( $($arg),+ ));
+
+        fn dumb_println(s: &str) {
+            use io::WriterUtil;
+            let dbg = ::libc::STDERR_FILENO as ::io::fd_t;
+            dbg.write_str(s);
+            dbg.write_str("\n");
+        }
+
+    } )
+)
+
+// An alternate version with no output, for turning off logging
+macro_rules! rtdebug (
+    ($( $arg:expr),+) => ( $(let _ = $arg)*; )
+)
+
+macro_rules! rtassert (
+    ( $arg:expr ) => ( {
+        if !$arg {
+            abort!("assertion failed: %s", stringify!($arg));
+        }
+    } )
+)
+
+macro_rules! abort(
+    ($( $msg:expr),+) => ( {
+        rtdebug!($($msg),+);
+
+        do_abort();
+
+        // NB: This is in a fn to avoid putting the `unsafe` block in a macro,
+        // which causes spurious 'unnecessary unsafe block' warnings.
+        fn do_abort() -> ! {
+            unsafe { ::libc::abort(); }
+        }
+    } )
+)