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Sema: Handle SameShape requirements in doesMemberHaveUnfulfillableConstraintsWithExistentialBase()

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This commit is contained in:
Slava Pestov
2024-09-02 13:22:28 -04:00
parent aa81ce3f6c
commit c0f1fd413e
2 changed files with 11 additions and 4 deletions
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6
lib/Sema/ConstraintSystem.cpp
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@@ -7479,9 +7479,6 @@ static bool doesMemberHaveUnfulfillableConstraintsWithExistentialBase(
for (const auto &req : sig.getRequirements()) {
switch (req.getKind()) {
case RequirementKind::SameShape:
llvm_unreachable("Same-shape requirement not supported here");
case RequirementKind::Superclass: {
if (req.getFirstType()->getRootGenericParam()->getDepth() > 0 &&
req.getSecondType().walk(isDependentOnSelfWalker)) {
@@ -7490,7 +7487,8 @@ static bool doesMemberHaveUnfulfillableConstraintsWithExistentialBase(
break;
}
case RequirementKind::SameType: {
case RequirementKind::SameType:
case RequirementKind::SameShape: {
const auto isNonSelfRootedTypeParam = [](Type ty) {
return ty->isTypeParameter() &&
ty->getRootGenericParam()->getDepth() > 0;