================
@@ -2896,6 +2896,9 @@ class TreeTransform {
SS.Adopt(QualifierLoc);
Base = BaseResult.get();
+ if (Base->containsErrors())
+ return ExprError();
----------------
sdkrystian wrote:
@mizvekov The problems arise when we build a `MemberExpr` for a class member
access expression with an object expression that isn't dependent (as far as
clang is concerned), but is _indirectly_ dependent (i.e. may instantiate to an
expression of a different type). If the object expression is transformed into a
`RecoveryExpr`, we end up with a `MemberExpr` that has the type
`ASTContext::DependentTy` -- which we _could_ recover from by rebuilding it as
a `RecoveryExpr` (or `CXXDependentScopeMemberExpr`), but the simplest solution
is to simply bail as we do in practically every other case when part of the
class member access expression instantiates to something invalid.
https://github.com/llvm/llvm-project/pull/97455
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