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Sema: Record preconcurrency closures in the trail

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This commit is contained in:
Slava Pestov
2024-10-04 14:50:22 -04:00
parent b961a7ec51
commit ac17292dfe
8 changed files with 60 additions and 33 deletions
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19
lib/Sema/CSSimplify.cpp
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@@ -11526,6 +11526,23 @@ void ConstraintSystem::removeIsolatedParam(ParamDecl *param) {
ASSERT(erased);
}
void ConstraintSystem::recordPreconcurrencyClosure(
const ClosureExpr *closure) {
bool inserted = preconcurrencyClosures.insert(closure).second;
ASSERT(inserted);
if (solverState) {
recordChange(SolverTrail::Change::RecordedPreconcurrencyClosure(
const_cast<ClosureExpr *>(closure)));
}
}
void ConstraintSystem::removePreconcurrencyClosure(
const ClosureExpr *closure) {
bool erased = preconcurrencyClosures.erase(closure);
ASSERT(erased);
}
bool ConstraintSystem::resolveClosure(TypeVariableType *typeVar,
Type contextualType,
ConstraintLocatorBuilder locator) {
@@ -11535,7 +11552,7 @@ bool ConstraintSystem::resolveClosure(TypeVariableType *typeVar,
// Note if this closure is isolated by preconcurrency.
if (hasPreconcurrencyCallee(locator))
preconcurrencyClosures.insert(closure);
recordPreconcurrencyClosure(closure);
// Let's look through all optionals associated with contextual
// type to make it possible to infer parameter/result type of