fix verify_attributes_stepper bug: proceed now considered a head instruction

2019-10-12 03:26:50 -06:00
parent 5893ff4231
commit 8c4c70b089
3 changed files with 10 additions and 6 deletions
--- a/src/prolog/instructions.rs
+++ b/src/prolog/instructions.rs
@@ -151,6 +151,7 @@ impl Line {
            &Line::Cut(_) => true,
            &Line::Fact(_) => true,
            &Line::Query(_) => true,
+            &Line::Control(ControlInstruction::Proceed) => true,
            _ => false,
        }
    }