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dereference list link in delete_attribute (#1148)

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This commit is contained in:
Mark Thom
2022-03-03 23:22:36 -07:00
parent 9f864574de
commit 0c25ffc26e
2 changed files with 21 additions and 15 deletions
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32
src/machine/mod.rs
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@@ -539,7 +539,7 @@ impl Machine {
self.machine_st.tr = or_frame.prelude.tr;
self.reset_attr_var_state();
self.machine_st.hb = self.machine_st.heap.len();
self.machine_st.hb = target_h;
self.unwind_trail(old_tr, curr_tr);
@@ -563,7 +563,6 @@ impl Machine {
self.machine_st.e = or_frame.prelude.e;
self.machine_st.cp = or_frame.prelude.cp;
// WAS: or_frame.prelude.bp = self.machine_st.p + 1;
or_frame.prelude.biip += 1;
let old_tr = or_frame.prelude.tr;
@@ -573,14 +572,14 @@ impl Machine {
self.machine_st.tr = or_frame.prelude.tr;
self.reset_attr_var_state();
self.machine_st.hb = target_h;
self.machine_st.p = self.machine_st.p + offset;
self.unwind_trail(old_tr, curr_tr);
self.machine_st.trail.truncate(self.machine_st.tr);
self.machine_st.heap.truncate(target_h);
self.machine_st.hb = self.machine_st.heap.len();
self.machine_st.p = self.machine_st.p + offset;
self.machine_st.oip = 0;
self.machine_st.iip = 0;
}
@@ -607,15 +606,16 @@ impl Machine {
self.machine_st.b = or_frame.prelude.b;
self.reset_attr_var_state();
self.machine_st.hb = target_h;
self.machine_st.p = self.machine_st.p + offset;
self.unwind_trail(old_tr, curr_tr);
self.machine_st.trail.truncate(self.machine_st.tr);
self.machine_st.stack.truncate(b);
self.machine_st.heap.truncate(target_h);
self.machine_st.hb = self.machine_st.heap.len();
self.machine_st.p = self.machine_st.p + offset;
self.machine_st.oip = 0;
self.machine_st.iip = 0;
}
@@ -642,14 +642,15 @@ impl Machine {
self.machine_st.b = or_frame.prelude.b;
self.reset_attr_var_state();
self.machine_st.hb = target_h;
self.machine_st.p += 1;
self.unwind_trail(old_tr, curr_tr);
self.machine_st.trail.truncate(self.machine_st.tr);
self.machine_st.stack.truncate(b);
self.machine_st.heap.truncate(target_h);
self.machine_st.hb = self.machine_st.heap.len();
self.machine_st.p += 1;
}
#[inline(always)]
@@ -825,8 +826,13 @@ impl Machine {
self.machine_st.heap[h] = heap_loc_as_cell!(h);
}
TrailEntryTag::TrailedAttrVarListLink => {
let l = self.machine_st.trail[i + 1].get_value();
self.machine_st.heap[h] = list_loc_as_cell!(l);
let value = HeapCellValue::from_bytes(
self.machine_st.trail[i + 1].into_bytes()
);
if value.get_value() < self.machine_st.hb {
self.machine_st.heap[h] = value;
}
}
TrailEntryTag::TrailedBlackboardEntry => {
let key = Atom::from(h);