Simplify formatting of langver

commit_hash:1ae54663218f72de44b8f3d1bcda3eb8763347a9

3 files changed, 20 insertions, 0 deletions

diff --git a/yql/essentials/public/langver/ut/yql_langver_ut.cpp b/yql/essentials/public/langver/ut/yql_langver_ut.cpp
index 0b7b871ecf3..67f7586e643 100644
--- a/yql/essentials/public/langver/ut/yql_langver_ut.cpp
+++ b/yql/essentials/public/langver/ut/yql_langver_ut.cpp
@@ -34,6 +34,13 @@ Y_UNIT_TEST_SUITE(TLangVerTests) {
         UNIT_ASSERT_VALUES_EQUAL(b[s.Size()], 0);
     }
 
+    Y_UNIT_TEST(FormatString) {
+        UNIT_ASSERT(!FormatLangVersion(MakeLangVersion(99999, 1)));
+        UNIT_ASSERT(!FormatLangVersion(MakeLangVersion(999, 1)));
+        UNIT_ASSERT_VALUES_EQUAL(FormatLangVersion(MakeLangVersion(2025, 1)), "2025.01");
+        UNIT_ASSERT_VALUES_EQUAL(FormatLangVersion(MakeLangVersion(2025, 12)), "2025.12");
+    }
+
     Y_UNIT_TEST(Deprecated) {
         UNIT_ASSERT(IsDeprecatedLangVersion(MakeLangVersion(2025,2),MakeLangVersion(2027,1)));
         UNIT_ASSERT(!IsDeprecatedLangVersion(MakeLangVersion(2025,3),MakeLangVersion(2025,1)));
diff --git a/yql/essentials/public/langver/yql_langver.cpp b/yql/essentials/public/langver/yql_langver.cpp
index df9297de7e4..5f91735eaa9 100644
--- a/yql/essentials/public/langver/yql_langver.cpp
+++ b/yql/essentials/public/langver/yql_langver.cpp
@@ -69,6 +69,16 @@ bool FormatLangVersion(TLangVersion ver, TLangVersionBuffer& buffer, TStringBuf&
     return true;
 }
 
+TMaybe<TString> FormatLangVersion(TLangVersion ver) {
+    TLangVersionBuffer buffer;
+    TStringBuf result;
+    if (!FormatLangVersion(ver, buffer, result)) {
+        return Nothing();
+    }
+
+    return TString(result);
+}
+
 TLangVersion GetMaxReleasedLangVersion() {
     return MaxReleasedLangVersion;
 }
diff --git a/yql/essentials/public/langver/yql_langver.h b/yql/essentials/public/langver/yql_langver.h
index 10c968b9e7e..c646ce9ac08 100644
--- a/yql/essentials/public/langver/yql_langver.h
+++ b/yql/essentials/public/langver/yql_langver.h
@@ -1,5 +1,7 @@
 #pragma once
 #include <util/generic/strbuf.h>
+#include <util/generic/string.h>
+#include <util/generic/maybe.h>
 #include <util/system/types.h>
 
 #include <array>
@@ -58,6 +60,7 @@ using TLangVersionBuffer = std::array<char, LangVersionBufferSize>;
 bool IsValidLangVersion(TLangVersion ver);
 bool ParseLangVersion(TStringBuf str, TLangVersion& result);
 bool FormatLangVersion(TLangVersion ver, TLangVersionBuffer& buffer, TStringBuf& result);
+TMaybe<TString> FormatLangVersion(TLangVersion ver);
 void EnumerateLangVersions(const std::function<void(TLangVersion)>& callback);
 
 enum class EBackportCompatibleFeaturesMode {