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fix discussion 3359

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This commit is contained in:
Skgland
2026-06-03 21:09:58 +02:00
parent 3a2d57db33
commit 068959bd07
2 changed files with 10 additions and 11 deletions
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15
src/machine/unify.rs
View File

@@ -15,9 +15,8 @@ impl MachineState {
pub(crate) fn partial_string_to_pdl(&mut self, pstr_loc: usize, l: usize) {
let (c, succ_cell) = self.heap.last_str_char_and_tail(pstr_loc);
self.pdl.push((heap_loc_as_cell!(l + 1), succ_cell));
self.pdl.push((heap_loc_as_cell!(l), char_as_cell!(c)));
self.pdl.push((succ_cell, heap_loc_as_cell!(l + 1)));
self.pdl.push((char_as_cell!(c), heap_loc_as_cell!(l)));
}
}
@@ -33,7 +32,7 @@ pub(crate) trait Unifier: DerefMut<Target = MachineState> {
if n1 == n2 && a1 == a2 {
for idx in (0..a1).rev() {
self.pdl.push((heap_loc_as_cell!(s2+1+idx), heap_loc_as_cell!(s1+1+idx)));
self.pdl.push((heap_loc_as_cell!(s1+1+idx), heap_loc_as_cell!(s2+1+idx)));
}
} else {
self.fail = true;
@@ -42,7 +41,7 @@ pub(crate) trait Unifier: DerefMut<Target = MachineState> {
(HeapCellValueTag::Lis, l2) => {
if a1 == 2 && n1 == atom!(".") {
for idx in (0..2).rev() {
self.pdl.push((heap_loc_as_cell!(l2+1+idx), heap_loc_as_cell!(s1+1+idx)));
self.pdl.push((heap_loc_as_cell!(s1+1+idx), heap_loc_as_cell!(l2+1+idx)));
}
} else {
self.fail = true;
@@ -70,7 +69,7 @@ pub(crate) trait Unifier: DerefMut<Target = MachineState> {
read_heap_cell!(value,
(HeapCellValueTag::Lis, l2) => {
for idx in (0..2).rev() {
self.pdl.push((heap_loc_as_cell!(l2 + idx), heap_loc_as_cell!(l1 + idx)));
self.pdl.push((heap_loc_as_cell!(l1 + idx), heap_loc_as_cell!(l2 + idx)));
}
}
(HeapCellValueTag::Str, s2) => {
@@ -79,7 +78,7 @@ pub(crate) trait Unifier: DerefMut<Target = MachineState> {
if a2 == 2 && n2 == atom!(".") {
for idx in (0..2).rev() {
self.pdl.push((heap_loc_as_cell!(s2+1+idx), heap_loc_as_cell!(l1+idx)));
self.pdl.push((heap_loc_as_cell!(l1+idx), heap_loc_as_cell!(s2+1+idx)));
}
} else {
self.fail = true;
@@ -128,7 +127,7 @@ pub(crate) trait Unifier: DerefMut<Target = MachineState> {
(HeapCellValueTag::PStrLoc, other_pstr_loc) => {
match machine_st.heap.compare_pstr_segments(pstr_loc, other_pstr_loc) {
PStrSegmentCmpResult::Continue(v1, v2) => {
machine_st.pdl.push((v1.offset_by(pstr_loc), v2.offset_by(other_pstr_loc)));
machine_st.pdl.push((v2.offset_by(other_pstr_loc), v1.offset_by(pstr_loc)));
}
_ => {
machine_st.fail = true;

6
src/macros.rs
View File

@@ -402,21 +402,21 @@ macro_rules! index_store {
macro_rules! unify {
($machine_st:expr, $($v1:expr, $v2:expr),*) => {{
$($machine_st.pdl.push(($v1, $v2));)*
$($machine_st.pdl.push(($v2, $v1));)*
$machine_st.unify()
}};
}
macro_rules! unify_fn {
($machine_st:expr, $($v1:expr, $v2: expr),*) => {{
$($machine_st.pdl.push(($v1, $v2));)*
$($machine_st.pdl.push(($v2, $v1));)*
$machine_st.occurs_check.unify(&mut $machine_st)
}};
}
macro_rules! unify_with_occurs_check {
($machine_st:expr, $($v1:expr, $v2:expr),*) => {{
$($machine_st.pdl.push(($v1, $v2));)*
$($machine_st.pdl.push(($v2, $v1));)*
$machine_st.unify_with_occurs_check()
}};
}