================
@@ -12394,45 +12391,65 @@ class Sema final : public SemaBase {
/// failures rather than hard errors.
bool AccessCheckingSFINAE;
+ class SFINAETrap;
+
+ struct SFINAEContextBase {
+ SFINAEContextBase(Sema &S, SFINAETrap *Cur)
+ : S(S), Prev(std::exchange(S.CurrentSFINAEContext, Cur)) {}
+
+ protected:
+ Sema &S;
+ ~SFINAEContextBase() { S.CurrentSFINAEContext = Prev; }
+
+ private:
+ SFINAETrap *Prev;
+ };
----------------
cor3ntin wrote:
The alternative would be `SFINAEContext _(S, SFINAEContext::NoSFINAE)` - that
would also make sense to me.
I don't have strong feelings
https://github.com/llvm/llvm-project/pull/164703
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