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Add back equality check that went missing

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This commit is contained in:
Lukas Wirth 2024-07-19 20:39:09 +02:00
parent a324e46b0b
commit 09ef75c717
2 changed files with 8 additions and 1 deletions
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3
crates/salsa/src/derived.rs
View file

@ -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

6
crates/salsa/src/derived/slot.rs
View file

@ -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() {