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add scc_block to MachineState to avoid SCC cleanup terms being deallocated too early (#1427)

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Mark
2023-07-06 11:20:49 -06:00
parent 9ff1b660f1
commit 483e4568a2
8 changed files with 90 additions and 31 deletions
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4
src/machine/machine_state.rs
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@@ -73,11 +73,12 @@ pub struct MachineState {
pub(super) tr: usize,
pub(super) hb: usize,
pub(super) block: usize, // an offset into the OR stack.
pub(super) scc_block: usize, // an offset into the OR stack for setup_call_cleanup/3.
pub(super) ball: Ball,
pub(super) ball_stack: Vec<Ball>, // save current ball before jumping via, e.g., verify_attr interrupt.
pub(super) lifted_heap: Heap,
pub(super) interms: Vec<Number>, // intermediate numbers.
// locations of cleaners, cut points, the previous block. for setup_call_cleanup.
// locations of cleaners, cut points, the previous scc_block. for setup_call_cleanup/3.
pub(super) cont_pts: Vec<(HeapCellValue, usize, usize)>,
pub(super) cwil: CWIL,
pub(crate) flags: MachineFlags,
@@ -112,6 +113,7 @@ impl fmt::Debug for MachineState {
.field("tr", &self.tr)
.field("hb", &self.hb)
.field("block", &self.block)
.field("scc_block", &self.scc_block)
.field("ball", &self.ball)
.field("ball_stack", &self.ball_stack)
.field("lifted_heap", &self.lifted_heap)