check lifetime bound of output streams

commit_hash:17de7afe0f415c511e587b2f2607cbbc2348742e

6 files changed, 21 insertions, 20 deletions

diff --git a/util/generic/flags.h b/util/generic/flags.h
index de56e8b5999..b263230479c 100644
--- a/util/generic/flags.h
+++ b/util/generic/flags.h
@@ -190,7 +190,7 @@ public:
         return *this;
     }
 
-    friend IOutputStream& operator<<(IOutputStream& stream, const TFlags& flags) {
+    friend IOutputStream& operator<<(IOutputStream& stream Y_LIFETIME_BOUND, const TFlags& flags) {
         ::NPrivate::PrintFlags(stream, static_cast<ui64>(flags.Value_), sizeof(TInt));
         return stream;
     }
diff --git a/util/generic/maybe.h b/util/generic/maybe.h
index ceaf4d66f0c..1de6bf38945 100644
--- a/util/generic/maybe.h
+++ b/util/generic/maybe.h
@@ -858,7 +858,7 @@ constexpr bool operator>=(const U& value, const TMaybe<T, TPolicy>& maybe) {
 class IOutputStream;
 
 template <class T, class TPolicy>
-inline IOutputStream& operator<<(IOutputStream& out, const TMaybe<T, TPolicy>& maybe) {
+inline IOutputStream& operator<<(IOutputStream& out Y_LIFETIME_BOUND, const TMaybe<T, TPolicy>& maybe) {
     if (maybe.Defined()) {
         out << *maybe;
     } else {
diff --git a/util/stream/format.h b/util/stream/format.h
index 56c3083bbca..c6ee9c720fc 100644
--- a/util/stream/format.h
+++ b/util/stream/format.h
@@ -67,7 +67,7 @@ namespace NFormatPrivate {
     };
 
     template <typename T>
-    IOutputStream& operator<<(IOutputStream& o, const TLeftPad<T>& lp) {
+    IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, const TLeftPad<T>& lp) {
         TTempBuf buf;
         TMemoryOutput ss(buf.Data(), buf.Size());
         ss << lp.Value;
@@ -94,7 +94,7 @@ namespace NFormatPrivate {
     };
 
     template <typename T>
-    IOutputStream& operator<<(IOutputStream& o, const TRightPad<T>& lp) {
+    IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, const TRightPad<T>& lp) {
         TTempBuf buf;
         TMemoryOutput ss(buf.Data(), buf.Size());
         ss << lp.Value;
@@ -123,7 +123,7 @@ namespace NFormatPrivate {
     using TUnsignedBaseNumber = TBaseNumber<std::make_unsigned_t<std::remove_cv_t<T>>, Base>;
 
     template <typename TStream, typename T, size_t Base>
-    TStream& ToStreamImpl(TStream& stream, const TBaseNumber<T, Base>& value) {
+    TStream& ToStreamImpl(TStream& stream Y_LIFETIME_BOUND, const TBaseNumber<T, Base>& value) {
         char buf[8 * sizeof(T) + 1]; /* Add 1 for sign. */
         TStringBuf str(buf, IntToString<Base>(value.Value, buf, sizeof(buf)));
 
@@ -149,12 +149,12 @@ namespace NFormatPrivate {
     }
 
     template <typename T, size_t Base>
-    IOutputStream& operator<<(IOutputStream& stream, const TBaseNumber<T, Base>& value) {
+    IOutputStream& operator<<(IOutputStream& stream Y_LIFETIME_BOUND, const TBaseNumber<T, Base>& value) {
         return ToStreamImpl(stream, value);
     }
 
     template <typename T, size_t Base>
-    std::ostream& operator<<(std::ostream& stream, const TBaseNumber<T, Base>& value) {
+    std::ostream& operator<<(std::ostream& stream Y_LIFETIME_BOUND, const TBaseNumber<T, Base>& value) {
         return ToStreamImpl(stream, value);
     }
 
@@ -169,7 +169,7 @@ namespace NFormatPrivate {
     };
 
     template <typename Char, size_t Base>
-    IOutputStream& operator<<(IOutputStream& os, const TBaseText<Char, Base>& text) {
+    IOutputStream& operator<<(IOutputStream& os Y_LIFETIME_BOUND, const TBaseText<Char, Base>& text) {
         for (size_t i = 0; i < text.Text.size(); ++i) {
             if (i != 0) {
                 os << ' ';
@@ -190,7 +190,7 @@ namespace NFormatPrivate {
     };
 
     template <typename T>
-    IOutputStream& operator<<(IOutputStream& o, const TFloatPrecision<T>& prec) {
+    IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, const TFloatPrecision<T>& prec) {
         char buf[512];
         size_t count = FloatToString(prec.Value, buf, sizeof(buf), prec.Mode, prec.NDigits);
         o << TStringBuf(buf, count);
diff --git a/util/stream/input.h b/util/stream/input.h
index b1facec2545..c64159b28c4 100644
--- a/util/stream/input.h
+++ b/util/stream/input.h
@@ -256,7 +256,7 @@ void In(IInputStream& in, T& value);
  * @see operator<<(IOutputStream&, T&)
  */
 template <typename T>
-inline IInputStream& operator>>(IInputStream& in, T& value) {
+inline IInputStream& operator>>(IInputStream& in Y_LIFETIME_BOUND, T& value) {
     In<T>(in, value);
     return in;
 }
diff --git a/util/stream/output.h b/util/stream/output.h
index 1f903a655af..8acd66a4ba8 100644
--- a/util/stream/output.h
+++ b/util/stream/output.h
@@ -7,6 +7,7 @@
 #include <util/generic/string.h>
 #include <util/generic/strbuf.h>
 #include <util/generic/typetraits.h>
+#include <util/system/compiler.h>
 
 #include <type_traits>
 
@@ -207,54 +208,54 @@ void Out<const wchar16*>(IOutputStream& o, const wchar16* w);
 template <>
 void Out<const wchar32*>(IOutputStream& o, const wchar32* w);
 
-static inline IOutputStream& operator<<(IOutputStream& o, TStreamManipulator m) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, TStreamManipulator m) {
     m(o);
 
     return o;
 }
 
-static inline IOutputStream& operator<<(IOutputStream& o, const char* t) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, const char* t) {
     Out<const char*>(o, t);
 
     return o;
 }
 
-static inline IOutputStream& operator<<(IOutputStream& o, char* t) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, char* t) {
     Out<const char*>(o, t);
 
     return o;
 }
 
 template <class T>
-static inline std::enable_if_t<std::is_scalar<T>::value, IOutputStream&> operator<<(IOutputStream& o, T t) {
+static inline std::enable_if_t<std::is_scalar<T>::value, IOutputStream&> operator<<(IOutputStream& o Y_LIFETIME_BOUND, T t) {
     Out<T>(o, t);
 
     return o;
 }
 
 template <class T>
-static inline std::enable_if_t<!std::is_scalar<T>::value, IOutputStream&> operator<<(IOutputStream& o, const T& t) {
+static inline std::enable_if_t<!std::is_scalar<T>::value, IOutputStream&> operator<<(IOutputStream& o Y_LIFETIME_BOUND, const T& t) {
     Out<T>(o, t);
 
     return o;
 }
 
-static inline IOutputStream& operator<<(IOutputStream& o, const wchar16* t) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, const wchar16* t) {
     Out<const wchar16*>(o, t);
     return o;
 }
 
-static inline IOutputStream& operator<<(IOutputStream& o, wchar16* t) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, wchar16* t) {
     Out<const wchar16*>(o, t);
     return o;
 }
 
-static inline IOutputStream& operator<<(IOutputStream& o, const wchar32* t) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, const wchar32* t) {
     Out<const wchar32*>(o, t);
     return o;
 }
 
-static inline IOutputStream& operator<<(IOutputStream& o, wchar32* t) {
+static inline IOutputStream& operator<<(IOutputStream& o Y_LIFETIME_BOUND, wchar32* t) {
     Out<const wchar32*>(o, t);
     return o;
 }
diff --git a/util/string/join.h b/util/string/join.h
index 720951abc53..f0d28df2919 100644
--- a/util/string/join.h
+++ b/util/string/join.h
@@ -203,7 +203,7 @@ JoinSeq(TCharType delim, const TContainer& data) {
  */
 template <class TIterB, class TIterE>
 struct TRangeJoiner {
-    friend constexpr IOutputStream& operator<<(IOutputStream& stream, const TRangeJoiner<TIterB, TIterE>& rangeJoiner) {
+    friend constexpr IOutputStream& operator<<(IOutputStream& stream Y_LIFETIME_BOUND, const TRangeJoiner<TIterB, TIterE>& rangeJoiner) {
         if (rangeJoiner.b != rangeJoiner.e) {
             stream << *rangeJoiner.b;