YT-19731: Whitelist now prevents dropping inner errors with whitelisted attributes

No tests for now
9e6aa6815b8d892d1e76281e95f5d044196801e1

1 files changed, 40 insertions, 0 deletions

diff --git a/library/cpp/yt/misc/optional.h b/library/cpp/yt/misc/optional.h
index cfae5c36d5..d5e3c07fbe 100644
--- a/library/cpp/yt/misc/optional.h
+++ b/library/cpp/yt/misc/optional.h
@@ -13,6 +13,16 @@ struct TOptionalTraits
 {
     using TOptional = std::optional<T>;
     using TValue = T;
+
+    static constexpr bool HasValue(const TOptional& opt)
+    {
+        return opt.has_value();
+    }
+
+    static constexpr TOptional Empty()
+    {
+        return std::nullopt;
+    }
 };
 
 template <class T>
@@ -20,6 +30,16 @@ struct TOptionalTraits<std::optional<T>>
 {
     using TOptional = std::optional<T>;
     using TValue = T;
+
+    static constexpr bool HasValue(const TOptional& opt)
+    {
+        return opt.has_value();
+    }
+
+    static constexpr TOptional Empty()
+    {
+        return std::nullopt;
+    }
 };
 
 template <class T>
@@ -27,6 +47,16 @@ struct TOptionalTraits<T*>
 {
     using TOptional = T*;
     using TValue = T*;
+
+    static constexpr bool HasValue(const TOptional& opt)
+    {
+        return opt != nullptr;
+    }
+
+    static constexpr TOptional Empty()
+    {
+        return nullptr;
+    }
 };
 
 template <class T>
@@ -34,6 +64,16 @@ struct TOptionalTraits<TIntrusivePtr<T>>
 {
     using TOptional = TIntrusivePtr<T>;
     using TValue = TIntrusivePtr<T>;
+
+    static bool HasValue(const TOptional& opt)
+    {
+        return opt.Get() != nullptr;
+    }
+
+    static constexpr TOptional Empty()
+    {
+        return TIntrusivePtr<T>{};
+    }
 };
 
 ////////////////////////////////////////////////////////////////////////////////