From 2d2b44e7bb98a0bdf31071e47669cb5da1c0a4cf Mon Sep 17 00:00:00 2001
From: sabdenovch <sabdenovch@yandex-team.com>
Date: Mon, 18 May 2026 12:45:35 +0300
Subject: Cosmetics, take 2
 commit_hash:3210c0fdd660724baf1a21334f02a76448392ba2

---
 yt/yt/client/table_client/row_buffer-inl.h | 39 ++++++++++++++++++++++++++++++
 yt/yt/client/table_client/row_buffer.h     | 25 ++++++-------------
 yt/yt/core/concurrency/public.h            |  2 ++
 3 files changed, 49 insertions(+), 17 deletions(-)
 create mode 100644 yt/yt/client/table_client/row_buffer-inl.h

diff --git a/yt/yt/client/table_client/row_buffer-inl.h b/yt/yt/client/table_client/row_buffer-inl.h
new file mode 100644
index 00000000000..601f3df6021
--- /dev/null
+++ b/yt/yt/client/table_client/row_buffer-inl.h
@@ -0,0 +1,39 @@
+#ifndef ROW_BUFFER_INL_H_
+#error "Direct inclusion of this file is not allowed, include row_buffer.h"
+// For the sake of sane code completion.
+#include "row_buffer.h"
+#endif
+#undef ROW_BUFFER_INL_H_
+
+namespace NYT::NTableClient {
+
+////////////////////////////////////////////////////////////////////////////////
+
+template <class TTag>
+TRowBuffer::TRowBuffer(
+    TTag /*tag*/,
+    size_t startChunkSize,
+    IMemoryUsageTrackerPtr tracker,
+    bool allowMemoryOvercommit)
+    : Pool_(
+        GetRefCountedTypeCookie<TTag>(),
+        GetTrackedMemoryChunkProvider(std::move(tracker), allowMemoryOvercommit),
+        startChunkSize)
+{
+    static_assert(IsEmptyClass<TTag>());
+}
+
+template <class TTag>
+TRowBuffer::TRowBuffer(
+    TTag /*tag*/,
+    IMemoryChunkProviderPtr chunkProvider)
+    : Pool_(
+        GetRefCountedTypeCookie<TTag>(),
+        std::move(chunkProvider))
+{
+    static_assert(IsEmptyClass<TTag>());
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT::NTableClient
diff --git a/yt/yt/client/table_client/row_buffer.h b/yt/yt/client/table_client/row_buffer.h
index 47ef3d12faf..422ea20c63b 100644
--- a/yt/yt/client/table_client/row_buffer.h
+++ b/yt/yt/client/table_client/row_buffer.h
@@ -26,17 +26,10 @@ class TRowBuffer
 public:
     template <class TTag = TDefaultRowBufferPoolTag>
     explicit TRowBuffer(
-        TTag /*tag*/ = TDefaultRowBufferPoolTag(),
+        TTag tag = TDefaultRowBufferPoolTag(),
         size_t startChunkSize = TChunkedMemoryPool::DefaultStartChunkSize,
         IMemoryUsageTrackerPtr tracker = nullptr,
-        bool allowMemoryOvercommit = false)
-        : Pool_(
-            GetRefCountedTypeCookie<TTag>(),
-            GetTrackedMemoryChunkProvider(std::move(tracker), allowMemoryOvercommit),
-            startChunkSize)
-    {
-        static_assert(IsEmptyClass<TTag>());
-    }
+        bool allowMemoryOvercommit = false);
 
     TRowBuffer(
         TRefCountedTypeCookie tagCookie,
@@ -45,14 +38,8 @@ public:
 
     template <class TTag>
     TRowBuffer(
-        TTag /*tag*/,
-        IMemoryChunkProviderPtr chunkProvider)
-        : Pool_(
-            GetRefCountedTypeCookie<TTag>(),
-            std::move(chunkProvider))
-    {
-        static_assert(IsEmptyClass<TTag>());
-    }
+        TTag tag,
+        IMemoryChunkProviderPtr chunkProvider);
 
     TChunkedMemoryPool* GetPool();
 
@@ -119,3 +106,7 @@ DEFINE_REFCOUNTED_TYPE(TRowBuffer)
 ////////////////////////////////////////////////////////////////////////////////
 
 } // namespace NYT::NTableClient
+
+#define ROW_BUFFER_INL_H_
+#include "row_buffer-inl.h"
+#undef ROW_BUFFER_INL_H_
diff --git a/yt/yt/core/concurrency/public.h b/yt/yt/core/concurrency/public.h
index ece3aa9318e..981c04ea821 100644
--- a/yt/yt/core/concurrency/public.h
+++ b/yt/yt/core/concurrency/public.h
@@ -129,6 +129,8 @@ class TPropagatingStorage;
 
 YT_DECLARE_RECONFIGURABLE_SINGLETON(TFiberManagerConfig, TFiberManagerDynamicConfig);
 
+// UDFs importing core yt headers cannot compile if a dynamically initialized and
+// destroyed global object, such as inline const std::string, is present.
 extern const TFairShareThreadPoolTag DefaultExecutionTag;
 
 ////////////////////////////////////////////////////////////////////////////////
-- 
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