Add std.dbg.trap(str msg) for help debugging.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/lib/dbg.rs b/src/lib/dbg.rs
index 51a31e07..774052dc 100644
--- a/src/lib/dbg.rs
+++ b/src/lib/dbg.rs
@@ -18,6 +18,7 @@ native "rust" mod rustrt {
     fn debug_obj[T](&T x, uint nmethods, uint nbytes);
     fn debug_fn[T](&T x);
     fn debug_ptrcast[T, U](@T x) -> @U;
+    fn debug_trap(str msg);
 }
 
 fn debug_vec[T](vec[T] v) {
@@ -61,6 +62,10 @@ fn ptr_cast[T, U](@T x) -> @U {
     ret rustrt.debug_ptrcast[T, U](x);
 }
 
+fn trap(str s) {
+    rustrt.debug_trap(s);
+}
+
 // Local Variables:
 // mode: rust;
 // fill-column: 78;