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read from machine stack in stackful pre-order iterator (#1812)

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2023-05-26 15:19:07 -06:00
parent 7bc7f0ad06
commit b656700294
10 changed files with 368 additions and 206 deletions
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6
src/machine/machine_state.rs
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@@ -558,10 +558,10 @@ impl MachineState {
let mut singleton_var_set: IndexMap<Ref, bool> = IndexMap::new();
for addr in stackful_preorder_iter(&mut self.heap, term) {
let addr = unmark_cell_bits!(addr);
for cell in stackful_preorder_iter(&mut self.heap, &mut self.stack, term) {
let cell = unmark_cell_bits!(cell);
if let Some(var) = addr.as_var() {
if let Some(var) = cell.as_var() {
if !singleton_var_set.contains_key(&var) {
singleton_var_set.insert(var, true);
} else {