Explicitly use TCowString in TYsonString

Для ревьюеров: изменения вне `library/cpp/yt` убирают `using namespace NYT` из хедера. Эта конструкция приводила к клешу имен глобального неймспейса и  `NYT` и ошибкам сборки.
commit_hash:f598da488a6dd8671af9f1f02870ab5612ae46eb

1 files changed, 32 insertions, 0 deletions

diff --git a/library/cpp/containers/cow_string/reverse.cpp b/library/cpp/containers/cow_string/reverse.cpp
new file mode 100644
index 00000000000..b5bd10d250a
--- /dev/null
+++ b/library/cpp/containers/cow_string/reverse.cpp
@@ -0,0 +1,32 @@
+#include "reverse.h"
+
+#include <util/generic/vector.h>
+#include <util/charset/wide_specific.h>
+
+#include <algorithm>
+
+void ReverseInPlace(TCowString& string) {
+    auto* begin = string.begin();
+    std::reverse(begin, begin + string.size());
+}
+
+void ReverseInPlace(TUtf16CowString& string) {
+    auto* begin = string.begin();
+    const auto len = string.size();
+    auto* end = begin + string.size();
+
+    TVector<wchar16> buffer(len);
+    wchar16* rbegin = buffer.data() + len;
+    for (wchar16* p = begin; p < end;) {
+        const size_t symbolSize = W16SymbolSize(p, end);
+        rbegin -= symbolSize;
+        std::copy(p, p + symbolSize, rbegin);
+        p += symbolSize;
+    }
+    std::copy(buffer.begin(), buffer.end(), begin);
+}
+
+void ReverseInPlace(TUtf32CowString& string) {
+    auto* begin = string.begin();
+    std::reverse(begin, begin + string.size());
+}