[Webkit-unassigned] [Bug 215550] [WTF] HashTable<Ref<K>, V>::HashTable(const HashTable& other) can't compile

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215550

--- Comment #1 from Fujii Hironori <Hironori.Fujii at sony.com> ---
The error message from GTK EWS bot:

[4/116] Building CXX object Tools/TestWebKitAPI/CMakeFiles/TestWTF.dir/Tests/WTF/HashSet.cpp.o
FAILED: Tools/TestWebKitAPI/CMakeFiles/TestWTF.dir/Tests/WTF/HashSet.cpp.o 
/usr/bin/ccache /usr/bin/c++  -DBUILDING_GTK__=1 -DBUILDING_TestWTF -DBUILDING_WITH_CMAKE=1 -DGETTEXT_PACKAGE=\"WebKit2GTK-4.0\" -DGTEST_CREATE_SHARED_LIBRARY=1 -DGTEST_HAS_PTHREAD=1 -DGTEST_HAS_RTTI=0 -DHAVE_CONFIG_H=1 -DJSC_GLIB_API_ENABLED -DSVN_REVISION=\"r265735\" -DWEBKITGTK_API_VERSION_STRING=\"4.0\" -I. -I../../Tools/TestWebKitAPI -I../../Source/ThirdParty/gtest/include -IDerivedSources/ForwardingHeaders -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /usr/include/gtk-3.0 -isystem /usr/include/pango-1.0 -isystem /usr/lib/x86_64-linux-gnu/libffi-3.2.1/include -isystem /usr/include/harfbuzz -isystem /usr/include/libmount -isystem /usr/include/blkid -isystem /usr/include/fribidi -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/cairo -isystem /usr/include/pixman-1 -isystem /usr/include/gdk-pixbuf-2.0 -isystem /usr/include/gio-unix-2.0 -isystem /usr/include/atk-1.0 -isystem /usr/include/at-spi2-atk/2.0 -isystem /usr/include/at-spi-2.0 -isystem /usr/include/dbus-1.0 -isystem /usr/lib/x86_64-linux-gnu/dbus-1.0/include -fdiagnostics-color=always -Wextra -Wall -Wno-expansion-to-defined -Wno-noexcept-type -Wno-psabi -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align  -fno-strict-aliasing -fno-exceptions -fno-rtti -O3 -DNDEBUG -fPIE   -Wno-dangling-else -Wno-sign-compare -Wno-undef -Wno-unused-parameter -pthread -std=c++17 -MD -MT Tools/TestWebKitAPI/CMakeFiles/TestWTF.dir/Tests/WTF/HashSet.cpp.o -MF Tools/TestWebKitAPI/CMakeFiles/TestWTF.dir/Tests/WTF/HashSet.cpp.o.d -o Tools/TestWebKitAPI/CMakeFiles/TestWTF.dir/Tests/WTF/HashSet.cpp.o -c ../../Tools/TestWebKitAPI/Tests/WTF/HashSet.cpp
In file included from DerivedSources/ForwardingHeaders/wtf/HashSet.h:26,
                 from ../../Tools/TestWebKitAPI/Tests/WTF/HashSet.cpp:34:
DerivedSources/ForwardingHeaders/wtf/HashTable.h: In instantiation of ‘static void WTF::IdentityHashTranslator<ValueTraits, HashFunctions>::translate(T&, const U&, V&&) [with T = WTF::Ref<TestWebKitAPI::RefLogger>; U = WTF::Ref<TestWebKitAPI::RefLogger>; V = const WTF::Ref<TestWebKitAPI::RefLogger>&; ValueTraits = WTF::HashTraits<WTF::Ref<TestWebKitAPI::RefLogger> >; HashFunctions = WTF::DefaultHash<WTF::Ref<TestWebKitAPI::RefLogger> >]’:
DerivedSources/ForwardingHeaders/wtf/HashTable.h:890:34:   required from ‘void WTF::HashTable<Key, Value, Extractor, HashFunctions, Traits, KeyTraits>::addUniqueForInitialization(T&&, Extra&&) [with HashTranslator = WTF::IdentityHashTranslator<WTF::HashTraits<WTF::Ref<TestWebKitAPI::RefLogger> >, WTF::DefaultHash<WTF::Ref<TestWebKitAPI::RefLogger> > >; T = const WTF::Ref<TestWebKitAPI::RefLogger>&; Extra = const WTF::Ref<TestWebKitAPI::RefLogger>&; Key = WTF::Ref<TestWebKitAPI::RefLogger>; Value = WTF::Ref<TestWebKitAPI::RefLogger>; Extractor = WTF::IdentityExtractor; HashFunctions = WTF::DefaultHash<WTF::Ref<TestWebKitAPI::RefLogger> >; Traits = WTF::HashTraits<WTF::Ref<TestWebKitAPI::RefLogger> >; KeyTraits = WTF::HashTraits<WTF::Ref<TestWebKitAPI::RefLogger> >]’
DerivedSources/ForwardingHeaders/wtf/HashTable.h:1398:13:   required from ‘WTF::HashTable<Key, Value, Extractor, HashFunctions, Traits, KeyTraits>::HashTable(const WTF::HashTable<Key, Value, Extractor, HashFunctions, Traits, KeyTraits>&) [with Key = WTF::Ref<TestWebKitAPI::RefLogger>; Value = WTF::Ref<TestWebKitAPI::RefLogger>; Extractor = WTF::IdentityExtractor; HashFunctions = WTF::DefaultHash<WTF::Ref<TestWebKitAPI::RefLogger> >; Traits = WTF::HashTraits<WTF::Ref<TestWebKitAPI::RefLogger> >; KeyTraits = WTF::HashTraits<WTF::Ref<TestWebKitAPI::RefLogger> >]’
DerivedSources/ForwardingHeaders/wtf/HashSet.h:33:7:   required from here
DerivedSources/ForwardingHeaders/wtf/HashTable.h:293:39: error: cannot bind rvalue reference of type ‘WTF::Ref<TestWebKitAPI::RefLogger>&&’ to lvalue of type ‘const WTF::Ref<TestWebKitAPI::RefLogger>’
  293 |             ValueTraits::assignToEmpty(location, std::forward<V>(value));
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../../Tools/TestWebKitAPI/Tests/WTF/DeletedAddressOfOperator.h:29,
                 from ../../Tools/TestWebKitAPI/Tests/WTF/HashSet.cpp:29:
DerivedSources/ForwardingHeaders/wtf/HashTraits.h:211:60: note:   initializing argument 2 of ‘static void WTF::RefHashTraits<P>::assignToEmpty(WTF::Ref<T>&, WTF::Ref<T>&&) [with P = TestWebKitAPI::RefLogger]’
  211 |     static void assignToEmpty(Ref<P>& emptyValue, Ref<P>&& newValue) { ASSERT(isEmptyValue(emptyValue)); emptyValue.assignToHashTableEmptyValue(WTFMove(newValue)); }
      |                                                   ~~~~~~~~~^~~~~~~~

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