Remove Size, Empty and Data usages from library

commit_hash:ef5ad4cfa9e68bbfc586492e8c376c732d0a48af

25 files changed, 47 insertions, 46 deletions

diff --git a/library/cpp/codecs/solar_codec.cpp b/library/cpp/codecs/solar_codec.cpp
index 916bbbd5d18..f894b89ada9 100644
--- a/library/cpp/codecs/solar_codec.cpp
+++ b/library/cpp/codecs/solar_codec.cpp
@@ -49,7 +49,7 @@ namespace NCodecs {
             tmp.reserve(set->size());
 
             for (const auto& it : *set) {
-                Y_ENSURE(it.Str.Size() <= maxlen);
+                Y_ENSURE(it.Str.size() <= maxlen);
                 tmp.push_back(std::make_pair(-it.Score, it.Str));
             }
 
diff --git a/library/cpp/codecs/ut/codecs_ut.cpp b/library/cpp/codecs/ut/codecs_ut.cpp
index 9b985cb7742..01901c44779 100644
--- a/library/cpp/codecs/ut/codecs_ut.cpp
+++ b/library/cpp/codecs/ut/codecs_ut.cpp
@@ -881,7 +881,7 @@ private:
         sout << " != \n";
         sout << HexEncode(test.data(), test.size()); //NEscJ::EscapeJ<true>(test, sout);
 
-        if (s.Size() > 1536) {
+        if (s.size() > 1536) {
             TString res = s.substr(0, 512);
             res.append("...<skipped ").append(ToString(s.size() - 1024)).append(">...");
             res.append(s.substr(s.size() - 512));
diff --git a/library/cpp/codecs/ut/tls_cache_ut.cpp b/library/cpp/codecs/ut/tls_cache_ut.cpp
index 8e808cfadb7..aed834101ab 100644
--- a/library/cpp/codecs/ut/tls_cache_ut.cpp
+++ b/library/cpp/codecs/ut/tls_cache_ut.cpp
@@ -27,7 +27,7 @@ Y_UNIT_TEST(TestAcquireReleaseReuse) {
         // expecting it zero sized but having the same memory
         auto buf2 = factory.Item();
         UNIT_ASSERT_VALUES_EQUAL(buf2.Get().Size(), 0u);
-        buf2.Get().Resize(TStringBuf("Buffer_02").Size());
+        buf2.Get().Resize(TStringBuf("Buffer_02").size());
         UNIT_ASSERT_EQUAL(AsStringBuf(buf2.Get()), "Buffer_02");
     }
     // when the factory dies we should see no leaks
diff --git a/library/cpp/colorizer/ut/colorizer_ut.cpp b/library/cpp/colorizer/ut/colorizer_ut.cpp
index 20341440aff..2512651861e 100644
--- a/library/cpp/colorizer/ut/colorizer_ut.cpp
+++ b/library/cpp/colorizer/ut/colorizer_ut.cpp
@@ -12,7 +12,7 @@ Y_UNIT_TEST_SUITE(ColorizerTest) {
         UNIT_ASSERT_STRINGS_EQUAL(EscapeC(colors.BlueColor()), "\\x1B[22;34m");
         UNIT_ASSERT_STRINGS_EQUAL(EscapeC(colors.ForeBlue()), "\\x1B[34m");
         colors.Disable();
-        UNIT_ASSERT(colors.BlueColor().Empty());
+        UNIT_ASSERT(colors.BlueColor().empty());
     }
 
     Y_UNIT_TEST(ResettingTest) {
diff --git a/library/cpp/containers/comptrie/comptrie_ut.cpp b/library/cpp/containers/comptrie/comptrie_ut.cpp
index 74bee09b5d6..8d2ddc83bc4 100644
--- a/library/cpp/containers/comptrie/comptrie_ut.cpp
+++ b/library/cpp/containers/comptrie/comptrie_ut.cpp
@@ -1483,7 +1483,7 @@ void TCompactTrieTest::TestBuilderFindLongestPrefix(size_t keysCount, double bra
     TVector<TString> keys;
     TString keyToAdd;
     for (size_t i = 0; i < keysCount; ++i) {
-        const size_t prevKeyLen = keyToAdd.Size();
+        const size_t prevKeyLen = keyToAdd.size();
         // add two random chars to prev key
         keyToAdd += RandChar();
         keyToAdd += RandChar();
@@ -1517,8 +1517,8 @@ void TCompactTrieTest::TestBuilderFindLongestPrefix(size_t keysCount, double bra
             } else {
                 size_t max = 0;
                 for (size_t k = 0; k < i; ++k)
-                    if (keys[k].Size() < otherKey.Size() && keys[k].Size() > max && otherKey.StartsWith(keys[k]))
-                        max = keys[k].Size();
+                    if (keys[k].size() < otherKey.size() && keys[k].size() > max && otherKey.StartsWith(keys[k]))
+                        max = keys[k].size();
                 expectedSize = max;
             }
 
@@ -1621,11 +1621,11 @@ void TCompactTrieTest::TestPatternSearcherOnDataset(
         size_t matchesNum = 0;
         THashSet<TString> processedPatterns;
         for (const auto& pattern : patterns) {
-            if (pattern.Empty() || processedPatterns.contains(pattern)) {
+            if (pattern.empty() || processedPatterns.contains(pattern)) {
                 continue;
             }
-            for (size_t start = 0; start + pattern.Size() <= sample.Size(); ++start) {
-                matchesNum += (pattern == sample.substr(start, pattern.Size()));
+            for (size_t start = 0; start + pattern.size() <= sample.size(); ++start) {
+                matchesNum += (pattern == sample.substr(start, pattern.size()));
             }
             processedPatterns.insert(pattern);
         }
@@ -1760,7 +1760,7 @@ void TCompactTrieTest::TestPatternSearcherRandom(
         patterns.push_back(RandStr(rng, patternMaxLength, maxChar, /*nonEmpty*/true));
     }
 
-    auto filler = RandStr(rng, strMaxLength - patternToSearch.Size() + 1, maxChar);
+    auto filler = RandStr(rng, strMaxLength - patternToSearch.size() + 1, maxChar);
     size_t leftFillerSize = rng.GenRand() % (filler.size() + 1);
     auto leftFiller = filler.substr(0, leftFillerSize);
     auto rightFiller = filler.substr(leftFillerSize, filler.size() - leftFillerSize);
diff --git a/library/cpp/deprecated/split/split_iterator_ut.cpp b/library/cpp/deprecated/split/split_iterator_ut.cpp
index be5069c4be4..6f17e636aaf 100644
--- a/library/cpp/deprecated/split/split_iterator_ut.cpp
+++ b/library/cpp/deprecated/split/split_iterator_ut.cpp
@@ -116,7 +116,7 @@ void TSplitIteratorTest::TestScreenedDelimitersSplit() {
         const TString s = "77.88.58.91 - - [28/Aug/2008:00:08:07 +0400] \"GET /export/mordashka.tgz HTTP/1.1\" 304 - \"-\" \"libwww-perl/5.805\" \"news.yandex.ru,80\" \"-\" \"-\" 1219867687 \"0\" 3283 2";
         const TSplitDelimiters delims(" ");
         const TSplitDelimiters screens("\"[]");
-        const TScreenedDelimitersSplit splitter(s.Data(), s.Size(), delims, screens);
+        const TScreenedDelimitersSplit splitter(s.data(), s.size(), delims, screens);
         TScreenedDelimitersSplit::TIterator it = splitter.Iterator();
         UNIT_ASSERT_EQUAL(it.NextString(), "77.88.58.91");
         UNIT_ASSERT_EQUAL(it.NextString(), "-");
diff --git a/library/cpp/messagebus/www/www.cpp b/library/cpp/messagebus/www/www.cpp
index 9c3e0f522d6..f6b32897022 100644
--- a/library/cpp/messagebus/www/www.cpp
+++ b/library/cpp/messagebus/www/www.cpp
@@ -717,7 +717,7 @@ struct TBusWww::TImpl {
                 os << HTTP_OK_BIN;
             }
             auto blob = NResource::Find(TString("/") + TString(path));
-            os.Write(blob.Data(), blob.Size());
+            os.Write(blob.data(), blob.size());
         }
 
         void HeaderJsCss() {
diff --git a/library/cpp/monlib/encode/json/json_encoder.cpp b/library/cpp/monlib/encode/json/json_encoder.cpp
index 20d2bb6283f..69da5170f0d 100644
--- a/library/cpp/monlib/encode/json/json_encoder.cpp
+++ b/library/cpp/monlib/encode/json/json_encoder.cpp
@@ -198,7 +198,7 @@ namespace NMonitoring {
                 if (Style_ != EJsonStyle::Cloud) {
                     return;
                 }
-                if (CurrentMetricName_.Empty()) {
+                if (CurrentMetricName_.empty()) {
                     ythrow yexception() << "label '" << MetricNameLabel_ << "' is not defined";
                 }
                 Buf_.WriteKey("name");
diff --git a/library/cpp/monlib/encode/prometheus/prometheus_decoder.cpp b/library/cpp/monlib/encode/prometheus/prometheus_decoder.cpp
index 313651ba8fa..16a08f47819 100644
--- a/library/cpp/monlib/encode/prometheus/prometheus_decoder.cpp
+++ b/library/cpp/monlib/encode/prometheus/prometheus_decoder.cpp
@@ -219,7 +219,7 @@ namespace NMonitoring {
 
         private:
             bool HasRemaining() const noexcept {
-                return CurrentPos_ < Data_.Size();
+                return CurrentPos_ < Data_.size();
             }
 
             // # 'TYPE' metric_name {counter|gauge|histogram|summary|untyped}
@@ -234,7 +234,7 @@ namespace NMonitoring {
                     SkipSpaces();
 
                     TStringBuf nextName = ReadTokenAsMetricName();
-                    Y_PARSER_ENSURE(!nextName.Empty(), "invalid metric name");
+                    Y_PARSER_ENSURE(!nextName.empty(), "invalid metric name");
 
                     SkipSpaces();
                     EPrometheusMetricType nextType = ReadType();
diff --git a/library/cpp/monlib/encode/prometheus/prometheus_encoder.cpp b/library/cpp/monlib/encode/prometheus/prometheus_encoder.cpp
index 8083221b63d..66c0f55b436 100644
--- a/library/cpp/monlib/encode/prometheus/prometheus_encoder.cpp
+++ b/library/cpp/monlib/encode/prometheus/prometheus_encoder.cpp
@@ -106,7 +106,7 @@ namespace NMonitoring {
         private:
             // will replace invalid chars with '_'
             void WriteMetricName(TStringBuf name) {
-                Y_ENSURE(!name.Empty(), "trying to write metric with empty name");
+                Y_ENSURE(!name.empty(), "trying to write metric with empty name");
 
                 char ch = name[0];
                 if (NPrometheus::IsValidMetricNameStart(ch)) {
@@ -133,7 +133,7 @@ namespace NMonitoring {
                     WriteLabelValue(l.Value());
                     Out_->Write(", "); // trailign comma is supported in parsers
                 }
-                if (!addLabelKey.Empty() && !addLabelValue.Empty()) {
+                if (!addLabelKey.empty() && !addLabelValue.empty()) {
                     Out_->Write(addLabelKey);
                     Out_->Write('=');
                     WriteLabelValue(addLabelValue);
@@ -164,12 +164,12 @@ namespace NMonitoring {
             {
                 // (1) name
                 WriteMetricName(name);
-                if (!suffix.Empty()) {
+                if (!suffix.empty()) {
                     Out_->Write(suffix);
                 }
 
                 // (2) labels
-                if (!labels.Empty() || !addLabelKey.Empty()) {
+                if (!labels.Empty() || !addLabelKey.empty()) {
                     WriteLabels(labels, addLabelKey, addLabelValue);
                 }
                 Out_->Write(' ');
diff --git a/library/cpp/monlib/encode/spack/spack_v1_encoder.cpp b/library/cpp/monlib/encode/spack/spack_v1_encoder.cpp
index a2b0bb5f50a..7e13c3292b9 100644
--- a/library/cpp/monlib/encode/spack/spack_v1_encoder.cpp
+++ b/library/cpp/monlib/encode/spack/spack_v1_encoder.cpp
@@ -312,7 +312,7 @@ namespace NMonitoring {
         EMetricsMergingMode mergingMode,
         TStringBuf metricNameLabel
     ) {
-        Y_ENSURE(!metricNameLabel.Empty(), "metricNameLabel can't be empty");
+        Y_ENSURE(!metricNameLabel.empty(), "metricNameLabel can't be empty");
         return MakeHolder<TEncoderSpackV1>(out, timePrecision, compression, mergingMode, SV1_02, metricNameLabel);
     }
 }
diff --git a/library/cpp/monlib/metrics/labels.cpp b/library/cpp/monlib/metrics/labels.cpp
index 1eaadb7cba0..f1210f54eda 100644
--- a/library/cpp/monlib/metrics/labels.cpp
+++ b/library/cpp/monlib/metrics/labels.cpp
@@ -35,7 +35,7 @@ Y_MONLIB_DEFINE_LABEL_OUT(NMonitoring::TLabel);
 
 namespace NMonitoring {
     bool TryLoadLabelsFromString(TStringBuf sb, ILabels& labels) {
-        if (sb.Empty()) {
+        if (sb.empty()) {
             return false;
         }
 
@@ -46,7 +46,7 @@ namespace NMonitoring {
         sb.Skip(1);
         sb.Chop(1);
 
-        if (sb.Empty()) {
+        if (sb.empty()) {
             return true;
         }
 
diff --git a/library/cpp/neh/http_headers.h b/library/cpp/neh/http_headers.h
index 70cf3a9fbe7..e3c9867d064 100644
--- a/library/cpp/neh/http_headers.h
+++ b/library/cpp/neh/http_headers.h
@@ -24,7 +24,7 @@ namespace NNeh {
 
             bool Next(TStringBuf& header) {
                 while (Headers_.ReadLine(header)) {
-                    if (!header.Empty()) {
+                    if (!header.empty()) {
                         return true;
                     }
                 }
diff --git a/library/cpp/regex/pcre/benchmark/main.cpp b/library/cpp/regex/pcre/benchmark/main.cpp
index 3c11ef4f290..4899dcc8f5f 100644
--- a/library/cpp/regex/pcre/benchmark/main.cpp
+++ b/library/cpp/regex/pcre/benchmark/main.cpp
@@ -17,19 +17,19 @@ static TVector<TString> GenerateHaystacks() {
     // Generate long randomized haystacks to prevent cache hit
     TVector<TString> result(Reserve(HaystacksCount));
     for (size_t i = 0; i < HaystacksCount; ++i) {
-        result.push_back(TString::Join(ComplexPattern.SubString(MinPrefix + i, ComplexPattern.Size() - MinPrefix - i), ComplexPattern.SubString(0, MinPrefix + i)));
+        result.push_back(TString::Join(ComplexPattern.SubString(MinPrefix + i, ComplexPattern.size() - MinPrefix - i), ComplexPattern.SubString(0, MinPrefix + i)));
     }
     return result;
 }
 
 static const TVector<TString> Haystacks{GenerateHaystacks()};
 
-static const NPcre::TPcre<char> Simple{SimplePattern.Data()};
-static const NPcre::TPcre<char> SimpleStudy{SimplePattern.Data(), NPcre::EOptimize::Study};
-static const NPcre::TPcre<char> SimpleJIT{SimplePattern.Data(), NPcre::EOptimize::JIT};
-static const NPcre::TPcre<char> Complex{ComplexPattern.Data()};
-static const NPcre::TPcre<char> ComplexStudy{ComplexPattern.Data(), NPcre::EOptimize::Study};
-static const NPcre::TPcre<char> ComplexJIT{ComplexPattern.Data(), NPcre::EOptimize::JIT};
+static const NPcre::TPcre<char> Simple{SimplePattern.data()};
+static const NPcre::TPcre<char> SimpleStudy{SimplePattern.data(), NPcre::EOptimize::Study};
+static const NPcre::TPcre<char> SimpleJIT{SimplePattern.data(), NPcre::EOptimize::JIT};
+static const NPcre::TPcre<char> Complex{ComplexPattern.data()};
+static const NPcre::TPcre<char> ComplexStudy{ComplexPattern.data(), NPcre::EOptimize::Study};
+static const NPcre::TPcre<char> ComplexJIT{ComplexPattern.data(), NPcre::EOptimize::JIT};
 
 static void Benchmark(benchmark::State& state, const NPcre::TPcre<char>& pattern) {
     for (auto _ : state) {
diff --git a/library/cpp/regex/pcre/pcre.h b/library/cpp/regex/pcre/pcre.h
index 82a9774f00f..15a25689db5 100644
--- a/library/cpp/regex/pcre/pcre.h
+++ b/library/cpp/regex/pcre/pcre.h
@@ -102,7 +102,7 @@ namespace NPcre {
             Y_ASSERT(workspaceSize >= 0);
             size_t ovecsize = workspaceSize * 3;
             NStackArray::TStackArray<int> ovector(ALLOC_ON_STACK(int, ovecsize));
-            return ConvertReturnCode(TTraits::Exec(Code.Get(), Extra.Get(), (TStringType) string.Data(), string.Size(), 0, executeFlags, ovector.data(), ovecsize));
+            return ConvertReturnCode(TTraits::Exec(Code.Get(), Extra.Get(), (TStringType) string.data(), string.size(), 0, executeFlags, ovector.data(), ovecsize));
         }
 
         //! Find compiled pattern in string.
@@ -123,7 +123,7 @@ namespace NPcre {
             for (size_t i = 0; i < ovecsize; ++i) {
                 ovector[i] = -4;
             }
-            int rc = TTraits::Exec(Code.Get(), Extra.Get(), (TStringType) string.Data(), string.Size(), 0, executeFlags, ovector.data(), ovecsize);
+            int rc = TTraits::Exec(Code.Get(), Extra.Get(), (TStringType) string.data(), string.size(), 0, executeFlags, ovector.data(), ovecsize);
             if (ConvertReturnCode(rc)) {
                 return MakeMaybe<TPcreMatch>(ovector[0], ovector[1]);
             } else {
@@ -153,7 +153,7 @@ namespace NPcre {
             size_t ovecsize = (initialWorkspaceSize + 1) * 3;
             while (true) {
                 NStackArray::TStackArray<int> ovector(ALLOC_ON_STACK(int, ovecsize));
-                int rc = TTraits::Exec(Code.Get(), Extra.Get(), (TStringType) string.Data(), string.Size(), 0, executeFlags, ovector.data(), ovecsize);
+                int rc = TTraits::Exec(Code.Get(), Extra.Get(), (TStringType) string.data(), string.size(), 0, executeFlags, ovector.data(), ovecsize);
                 if (rc > 0) {
                     TPcreMatches result(Reserve(rc >> 1));
                     for (int i = 0, pos = 0; i < rc; ++i) {
diff --git a/library/cpp/streams/lz/lz_ut.cpp b/library/cpp/streams/lz/lz_ut.cpp
index 17df533225b..dfa88f9b6b4 100644
--- a/library/cpp/streams/lz/lz_ut.cpp
+++ b/library/cpp/streams/lz/lz_ut.cpp
@@ -292,7 +292,7 @@ Y_UNIT_TEST_SUITE(TLzTest) {
     Y_UNIT_TEST(TestYQ609) {
         auto data = NResource::Find("/yq_609.data");
 
-        TMemoryInput input(data.Data(), data.Size());
+        TMemoryInput input(data.data(), data.size());
 
         TLz4Decompress d(&input);
         UNIT_ASSERT_EXCEPTION(d.ReadAll(), TDecompressorError);
diff --git a/library/cpp/string_utils/base64/base64_ut.cpp b/library/cpp/string_utils/base64/base64_ut.cpp
index f10afa97474..df7ffd37e87 100644
--- a/library/cpp/string_utils/base64/base64_ut.cpp
+++ b/library/cpp/string_utils/base64/base64_ut.cpp
@@ -537,7 +537,7 @@ Y_UNIT_TEST_SUITE(TBase64) {
     Y_UNIT_TEST(TestDecodeUnevenDst) {
         const auto x = "How do I convert between big-endian and little-endian values in C++?aa";
         TString b64 = "SG93IGRvIEkgY29udmVydCBiZXR3ZWVuIGJpZy1lbmRpYW4gYW5kIGxpdHRsZS1lbmRpYW4gdmFsdWVzIGluIEMrKz9hYQ";
-        TVector<char> buf(Base64DecodeBufSize(b64.Size()), '\0');
+        TVector<char> buf(Base64DecodeBufSize(b64.size()), '\0');
         Base64DecodeUneven(buf.begin(), b64);
         TString res(buf.data());
         UNIT_ASSERT_VALUES_EQUAL(x, res);
@@ -546,7 +546,7 @@ Y_UNIT_TEST_SUITE(TBase64) {
     Y_UNIT_TEST(TestDecodeUnevenDst2) {
         const auto x = "How do I convert between big-endian and little-endian values in C++?";
         TString b64 = "SG93IGRvIEkgY29udmVydCBiZXR3ZWVuIGJpZy1lbmRpYW4gYW5kIGxpdHRsZS1lbmRpYW4gdmFsdWVzIGluIEMrKz8";
-        TVector<char> buf(Base64DecodeBufSize(b64.Size()), '\0');
+        TVector<char> buf(Base64DecodeBufSize(b64.size()), '\0');
         Base64DecodeUneven(buf.begin(), b64);
         TString res(buf.data());
         UNIT_ASSERT_VALUES_EQUAL(x, res);
diff --git a/library/cpp/type_info/type_factory.h b/library/cpp/type_info/type_factory.h
index 1d21094355d..567a164235c 100644
--- a/library/cpp/type_info/type_factory.h
+++ b/library/cpp/type_info/type_factory.h
@@ -439,7 +439,7 @@ namespace NTi {
 
         /// Reclaim a chunk of memory memory that was allocated via the `AllocateString` function.
         virtual void FreeString(TStringBuf str) noexcept {
-            Free(const_cast<char*>(str.Data()));
+            Free(const_cast<char*>(str.data()));
         }
 
         /// Like `AllocateString`, but works with `TMaybe<TStringBuf>`.
diff --git a/library/cpp/type_info/ut/test_data.cpp b/library/cpp/type_info/ut/test_data.cpp
index 36944e7bc48..7842e86c2e0 100644
--- a/library/cpp/type_info/ut/test_data.cpp
+++ b/library/cpp/type_info/ut/test_data.cpp
@@ -25,7 +25,7 @@ std::vector<std::vector<TString>> ParseData(TStringBuf data, int expectedFieldsC
     std::vector<std::vector<TString>> result;
     for (TStringBuf record : StringSplitter(noComments).SplitByString(";;")) {
         record = StripString(record);
-        if (record.Empty()) {
+        if (record.empty()) {
             continue;
         }
         std::vector<TString> fields;
@@ -88,4 +88,5 @@ TEST(TestData, BadTypes) {
             exceptionMessage,
             context);
     }
-}
\ No newline at end of file
+}
+
diff --git a/library/cpp/uri/uri_ut.cpp b/library/cpp/uri/uri_ut.cpp
index 1198140ce92..934ec2174b6 100644
--- a/library/cpp/uri/uri_ut.cpp
+++ b/library/cpp/uri/uri_ut.cpp
@@ -840,7 +840,7 @@ namespace NUri {
                 uri.Parse("http://srv.net:80/print", TFeature::FeaturesRecommended);
                 TString s = uri.PrintS(TUri::FlagPort);
                 Cdbg << uri.PrintS() << ',' << uri.PrintS(TUri::FlagPort) << Endl;
-                UNIT_ASSERT(s.Empty());
+                UNIT_ASSERT(s.empty());
             }
         }
 
diff --git a/library/cpp/xml/document/node-attr.h b/library/cpp/xml/document/node-attr.h
index 6e74403943c..1378ffdfbff 100644
--- a/library/cpp/xml/document/node-attr.h
+++ b/library/cpp/xml/document/node-attr.h
@@ -111,7 +111,7 @@ namespace NXml {
 
     inline void TNode::SetValue(TStringBuf value) {
         xmlNodeSetContent(NodePointer, XMLCHAR(""));
-        xmlNodeAddContentLen(NodePointer, XMLCHAR(value.data()), value.Size());
+        xmlNodeAddContentLen(NodePointer, XMLCHAR(value.data()), value.size());
     }
 
     inline void TNode::SetAttr(TZtStringBuf name, TZtStringBuf value) {
diff --git a/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp b/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp
index f5d02aaa332..e95d920f188 100644
--- a/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp
+++ b/library/cpp/yt/backtrace/symbolizers/dwarf/dwarf_symbolizer.cpp
@@ -22,7 +22,7 @@ void SymbolizeBacktrace(
         formatter.AppendNumber(info.Address, 16, width, '0');
         formatter.AppendString(" in ");
         formatter.AppendString(info.FunctionName);
-        const int bytesToAppendEstimate = 4 + info.FileName.Size() + 1 + 4 /* who cares about line numbers > 9999 */ + 1;
+        const int bytesToAppendEstimate = 4 + info.FileName.size() + 1 + 4 /* who cares about line numbers > 9999 */ + 1;
         if (formatter.GetBytesRemaining() < bytesToAppendEstimate) {
             const int offset = formatter.GetBytesRemaining() - bytesToAppendEstimate;
             if (formatter.GetBytesWritten() + offset >= 0) {
diff --git a/library/cpp/yt/farmhash/farm_hash.h b/library/cpp/yt/farmhash/farm_hash.h
index fe4c8193a0a..f233bc0c925 100644
--- a/library/cpp/yt/farmhash/farm_hash.h
+++ b/library/cpp/yt/farmhash/farm_hash.h
@@ -39,7 +39,7 @@ static inline TFingerprint FarmFingerprint(const void* buf, size_t len)
 
 static inline TFingerprint FarmFingerprint(TStringBuf buf)
 {
-    return FarmFingerprint(buf.Data(), buf.Size());
+    return FarmFingerprint(buf.data(), buf.size());
 }
 
 static inline TFingerprint FarmFingerprint(ui64 first, ui64 second)
diff --git a/library/cpp/yt/memory/unittests/chunked_memory_pool_ut.cpp b/library/cpp/yt/memory/unittests/chunked_memory_pool_ut.cpp
index 55f9f9945af..736470653bd 100644
--- a/library/cpp/yt/memory/unittests/chunked_memory_pool_ut.cpp
+++ b/library/cpp/yt/memory/unittests/chunked_memory_pool_ut.cpp
@@ -23,7 +23,7 @@ TEST(TChunkedMemoryPoolTest, Absorb)
     auto fillPool = [&] (TChunkedMemoryPool& pool, TString prefix, int count) {
         for (int i = 0; i < count; i++) {
             TString expected = prefix + ToString(count);
-            char* buf = pool.AllocateUnaligned(expected.Size());
+            char* buf = pool.AllocateUnaligned(expected.size());
             ::memcpy(buf, expected.c_str(), expected.size());
             TStringBuf ref(buf, buf + expected.size());
             totalSize += expected.size();
diff --git a/library/cpp/yt/yson_string/string.cpp b/library/cpp/yt/yson_string/string.cpp
index ed2990a51b0..45a6aa7f099 100644
--- a/library/cpp/yt/yson_string/string.cpp
+++ b/library/cpp/yt/yson_string/string.cpp
@@ -75,7 +75,7 @@ TYsonString::TYsonString(const TYsonStringBuf& ysonStringBuf)
         auto holder = NDetail::TYsonStringHolder::Allocate(data.length());
         ::memcpy(holder->GetData(), data.data(), data.length());
         Begin_ = holder->GetData();
-        Size_ = data.Size();
+        Size_ = data.size();
         Type_ = ysonStringBuf.GetType();
         Payload_ = std::move(holder);
     } else {