fix #255 (I think?)

2020-02-21 01:02:52 -07:00
parent d48ac09e25
commit be3cdcd71a
5 changed files with 11 additions and 18 deletions
--- a/src/prolog/machine/attributed_variables.rs
+++ b/src/prolog/machine/attributed_variables.rs
@@ -73,11 +73,10 @@ impl MachineState {
        let iter = self
            .attr_var_init
            .bindings
-            .iter()
-            .map(|(_, ref addr)| addr.clone());
+            .drain(0 ..)
+            .map(|(_, addr)| addr);

        let value_list_addr = Addr::HeapCell(self.heap.to_list(iter));
-
        (var_list_addr, value_list_addr)
    }