Unnamed repository; edit this file 'description' to name the repository.
Add back equality check that went missing
Lukas Wirth 2024-07-20
parent a324e46 · commit 09ef75c
-rw-r--r--crates/salsa/src/derived.rs3
-rw-r--r--crates/salsa/src/derived/slot.rs6
2 files changed, 8 insertions, 1 deletions
diff --git a/crates/salsa/src/derived.rs b/crates/salsa/src/derived.rs
index c0d4d674f7..8b2fdd6b19 100644
--- a/crates/salsa/src/derived.rs
+++ b/crates/salsa/src/derived.rs
@@ -43,6 +43,7 @@ where
impl<Q> DerivedStorage<Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
fn slot(&self, key: &Q::Key) -> Arc<Slot<Q>> {
if let Some(v) = self.slot_map.read().get(key) {
@@ -64,6 +65,7 @@ where
impl<Q> QueryStorageOps<Q> for DerivedStorage<Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
const CYCLE_STRATEGY: crate::plumbing::CycleRecoveryStrategy = Q::CYCLE_STRATEGY;
@@ -139,6 +141,7 @@ where
impl<Q> DerivedQueryStorageOps<Q> for DerivedStorage<Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
fn invalidate<S>(&self, runtime: &mut Runtime, key: &S)
where
diff --git a/crates/salsa/src/derived/slot.rs b/crates/salsa/src/derived/slot.rs
index b5c3d9f4f2..de7a397607 100644
--- a/crates/salsa/src/derived/slot.rs
+++ b/crates/salsa/src/derived/slot.rs
@@ -94,6 +94,7 @@ enum MaybeChangedSinceProbeState<G> {
impl<Q> Slot<Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
pub(super) fn new(database_key_index: DatabaseKeyIndex) -> Self {
Self {
@@ -270,7 +271,7 @@ where
// used to be, that is a "breaking change" that our
// consumers must be aware of. Becoming *more* durable
// is not. See the test `constant_to_non_constant`.
- if revisions.durability >= old_memo.revisions.durability {
+ if revisions.durability >= old_memo.revisions.durability && old_memo.value == value {
debug!(
"read_upgrade({:?}): value is equal, back-dating to {:?}",
self, old_memo.revisions.changed_at,
@@ -550,6 +551,7 @@ where
struct PanicGuard<'me, Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
slot: &'me Slot<Q>,
runtime: &'me Runtime,
@@ -558,6 +560,7 @@ where
impl<'me, Q> PanicGuard<'me, Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
fn new(slot: &'me Slot<Q>, runtime: &'me Runtime) -> Self {
Self { slot, runtime }
@@ -616,6 +619,7 @@ Please report this bug to https://github.com/salsa-rs/salsa/issues."
impl<'me, Q> Drop for PanicGuard<'me, Q>
where
Q: QueryFunction,
+ Q::Value: Eq,
{
fn drop(&mut self) {
if std::thread::panicking() {