add nil value

1 files changed, 2 insertions, 0 deletions

diff --git a/dbg.d b/dbg.d
index 19e92b1..e6ec197 100644
--- a/dbg.d
+++ b/dbg.d
@@ -82,6 +82,8 @@ string printableValue(Value val) {
             return printableFunction(val.as.obj);
         case ValueType.TYPE:
             return val.as.type;
+        case ValueType.NIL:
+            return "nil";
         default:
             return "! unknown value type !";
     }