intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 26 insertions, 0 deletions

diff --git a/library/cpp/yson_pull/detail/format_string.h b/library/cpp/yson_pull/detail/format_string.h
new file mode 100644
index 0000000000..683fd1bf36
--- /dev/null
+++ b/library/cpp/yson_pull/detail/format_string.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <util/generic/strbuf.h>
+#include <util/generic/string.h>
+#include <util/string/builder.h>
+
+namespace NYsonPull {
+    namespace NDetail {
+        namespace NImpl {
+            inline void apply_args(TStringBuilder&) {
+            }
+
+            template <typename T, typename... Args>
+            inline void apply_args(TStringBuilder& builder, T&& arg, Args&&... args) {
+                apply_args(builder << arg, std::forward<Args>(args)...);
+            }
+        }
+
+        template <typename... Args>
+        TString format_string(Args&&... args) {
+            TStringBuilder builder;
+            NImpl::apply_args(builder, std::forward<Args>(args)...);
+            return TString(std::move(builder));
+        }
+    }
+}