add atts.pl, various fixes

2019-01-30 21:31:48 -07:00
parent 4f87fb8535
commit fcffb90549
12 changed files with 261 additions and 45 deletions
--- a/src/prolog/heap_iter.rs
+++ b/src/prolog/heap_iter.rs
@@ -65,7 +65,8 @@ impl<'a> HCPreOrderIterator<'a> {

                da
            },
-            Addr::AttrVar(_) | Addr::HeapCell(_) | Addr::StackCell(_, _) => da,
+            Addr::HeapCell(_) | Addr::StackCell(_, _) => da,
+            Addr::AttrVar(h, _) => self.follow_heap(h + 1),
            Addr::Str(s) => self.follow_heap(s) // record terms of structure.
        }
    }