================
@@ -6460,6 +6476,100 @@ QualType
TreeTransform<Derived>::TransformDecltypeType(TypeLocBuilder &TLB,
return Result;
}
+template <typename Derived>
+QualType
+TreeTransform<Derived>::TransformPackIndexingType(TypeLocBuilder &TLB,
+ PackIndexingTypeLoc TL) {
+ // Transform the index
+ ExprResult IndexExpr = getDerived().TransformExpr(TL.getIndexExpr());
+ if (IndexExpr.isInvalid())
+ return QualType();
+ QualType Pattern = TL.getPattern();
+
+ const PackIndexingType *PIT = TL.getTypePtr();
+ SmallVector<QualType, 5> ExpandedTypes;
+ llvm::ArrayRef<QualType> Types = PIT->getExpansions();
+
+ bool NotYetExpanded = Types.empty();
+ bool FullyExpanded = true;
+
+ if (Types.empty())
----------------
erichkeane wrote:
```suggestion
if (NotYetExpanded)
```
I think? Plus some comments here anyway, there are a couple of states crossing
here.
https://github.com/llvm/llvm-project/pull/72644
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