add variable_names as a write option

2019-05-05 00:58:56 -04:00
parent b05cff3044
commit bf8a2ab6a6
11 changed files with 182 additions and 113 deletions
--- a/src/prolog/machine/machine_state.rs
+++ b/src/prolog/machine/machine_state.rs
@@ -235,6 +235,7 @@ pub struct MachineState {
    pub(super) lifted_heap: Vec<HeapCellValue>,
    pub(super) interms: Vec<Number>, // intermediate numbers.
    pub(super) last_call: bool,
+    pub(crate) heap_locs: HeapVarDict,
    pub(crate) flags: MachineFlags
 }