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[Constraint graph] Move constraint uniquing into gatherConstraints().

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Simplify the interface to gatherConstraints() by performing the
uniquing within the function itself and returning only the resulting
(uniqued) vector of constraints.
This commit is contained in:
Doug Gregor
2019-07-25 02:13:27 -04:00
parent dfdd352d3d
commit 8355f3d270
8 changed files with 65 additions and 67 deletions
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5
lib/Sema/CSSimplify.cpp
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@@ -7133,9 +7133,8 @@ ConstraintSystem::addKeyPathApplicationRootConstraint(Type root, ConstraintLocat
if (!typeVar)
return;
llvm::SetVector<Constraint *> constraints;
CG.gatherConstraints(
typeVar, constraints, ConstraintGraph::GatheringKind::EquivalenceClass,
auto constraints = CG.gatherConstraints(
typeVar, ConstraintGraph::GatheringKind::EquivalenceClass,
[&keyPathExpr](Constraint *constraint) -> bool {
return constraint->getKind() == ConstraintKind::KeyPath &&
constraint->getLocator()->getAnchor() == keyPathExpr;