use acyclic iteration when projecting onto query vars

2019-02-22 17:48:49 -07:00
parent f41b5f465e
commit 6ba47b6b08
6 changed files with 30 additions and 14 deletions
--- a/src/prolog/write.rs
+++ b/src/prolog/write.rs
@@ -383,7 +383,11 @@ pub fn print(wam: &mut Machine, result: EvalSession) {
                write!(raw_stdout, "{}", bindings).unwrap();
                raw_stdout.flush().unwrap();

-                wam.attribute_goals(&heap_locs);
+                let attr_goals = wam.attribute_goals(&heap_locs);
+
+                if !attr_goals.is_empty() {
+                    write!(raw_stdout, "\r\n{}\r", attr_goals).unwrap();
+                }

                if !wam.or_stack_is_empty() {
                    raw_stdout.flush().unwrap();