add error handling appartus

2018-05-02 21:24:43 -06:00
parent b23f17678c
commit 0dec988337
9 changed files with 319 additions and 139 deletions
--- a/src/prolog/macros.rs
+++ b/src/prolog/macros.rs
@@ -119,6 +119,12 @@ macro_rules! get_value {
    )
 }

+macro_rules! set_void {
+    ($n:expr) => (
+        QueryInstruction::SetVoid($n)
+    )
+}
+
 macro_rules! set_value {
    ($r:expr) => (
        QueryInstruction::SetValue($r)