[Webkit-unassigned] [Bug 226251] New: include\optional(95, 5): error: the parameter for this explicitly-defaulted copy constructor is const, but a member or base requires it to be non-const

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue May 25 17:11:51 PDT 2021 

https://bugs.webkit.org/show_bug.cgi?id=226251

            Bug ID: 226251
           Summary: include\optional(95,5): error: the parameter for this
                    explicitly-defaulted copy constructor is const, but a
                    member or base requires it to be non-const
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
        Depends on: 211674

include\optional(95,5): error: the parameter for this explicitly-defaulted copy constructor is const, but a member or base requires it to be non-const

Since r278035 (238131 at main)
WinCairo Debug clang-cl can't compile.
WinCairo Release clang-cl and MSVC can compile.


[800/5730] Building CXX object Source\JavaScriptCore\CMakeFiles\JavaScriptCore.dir\dfg\DFGSpeculativeJIT64.cpp.obj
FAILED: Source/JavaScriptCore/CMakeFiles/JavaScriptCore.dir/dfg/DFGSpeculativeJIT64.cpp.obj 
C:\PROGRA~1\LLVM\bin\clang-cl.exe  /nologo -TP -DBUILDING_JavaScriptCore -DBUILDING_WITH_CMAKE=1 -DHAVE_CONFIG_H=1 -DJavaScriptCore_EXPORTS -DNOCRYPT -DNOMINMAX -DUNICODE -DWINVER=0x601 -DWTF_PLATFORM_WIN_CAIRO=1 -D_CRT_SECURE_NO_WARNINGS -D_HAS_EXCEPTIONS=0 -D_UNICODE -D_WIN32_WINNT=0x601 -D_WINDOWS -D_WINSOCKAPI_="" -IJavaScriptCore\Headers -I. -I..\..\Source\JavaScriptCore -I..\..\Source\JavaScriptCore\API -I..\..\Source\JavaScriptCore\assembler -I..\..\Source\JavaScriptCore\b3 -I..\..\Source\JavaScriptCore\b3\air -I..\..\Source\JavaScriptCore\bindings -I..\..\Source\JavaScriptCore\builtins -I..\..\Source\JavaScriptCore\bytecode -I..\..\Source\JavaScriptCore\bytecompiler -I..\..\Source\JavaScriptCore\dfg -I..\..\Source\JavaScriptCore\disassembler -I..\..\Source\JavaScriptCore\disassembler\ARM64 -I..\..\Source\JavaScriptCore\disassembler\udis86 -I..\..\Source\JavaScriptCore\domjit -I..\..\Source\JavaScriptCore\ftl -I..\..\Source\JavaScriptCore\heap -I..\..\Source\JavaScriptCore\debugger -I..\..\Source\JavaScriptCore\inspector -I..\..\Source\JavaScriptCore\inspector\agents -I..\..\Source\JavaScriptCore\inspector\augmentable -I..\..\Source\JavaScriptCore\inspector\remote -I..\..\Source\JavaScriptCore\interpreter -I..\..\Source\JavaScriptCore\jit -I..\..\Source\JavaScriptCore\llint -I..\..\Source\JavaScriptCore\parser -I..\..\Source\JavaScriptCore\profiler -I..\..\Source\JavaScriptCore\runtime -I..\..\Source\JavaScriptCore\tools -I..\..\Source\JavaScriptCore\wasm -I..\..\Source\JavaScriptCore\wasm\js -I..\..\Source\JavaScriptCore\yarr -IJavaScriptCore\DerivedSources -IJavaScriptCore\DerivedSources\inspector -IJavaScriptCore\DerivedSources\runtime -IJavaScriptCore\DerivedSources\yarr -I..\include\private -I..\..\Source\JavaScriptCore\inspector\remote\socket -IWTF\Headers -imsvc ..\..\WebKitLibraries\win\include /W4 -fdiagnostics-color=always -fcolor-diagnostics -Wno-noexcept-type -Wno-psabi -Wno-misleading-indentation -Wno-parentheses-equality -Qunused-arguments -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-unknown-argument -Wno-nonportable-include-path -Wno-unknown-pragmas -Wno-macro-redefined -Wno-undef /DWIN32 /D_WINDOWS  /GR- /EHsc- -fno-strict-aliasing /MD /Zi /Ob0 /Od /RTC1 /wd4018 /wd4060 /wd4068 /wd4100 /wd4127 /wd4146 /wd4189 /wd4201 /wd4244 /wd4245 /wd4251 /wd4275 /wd4267 /wd4305 /wd4309 /wd4312 /wd4324 /wd4389 /wd4456 /wd4457 /wd4458 /wd4459 /wd4505 /wd4611 /wd4646 /wd4701 /wd4702 /wd4706 /wd4715 /wd4722 /wd4838 /wd4840 /wd4996 /wd5205 /Zi /GS /EHa- /EHc- /EHs- /fp:except- /analyze- /bigobj /utf-8 /validate-charset -fmsc-version=1911 -ffp-contract=off -fno-slp-vectorize -std:c++17 /showIncludes /FoSource\JavaScriptCore\CMakeFiles\JavaScriptCore.dir\dfg\DFGSpeculativeJIT64.cpp.obj /FdSource\JavaScriptCore\CMakeFiles\JavaScriptCore.dir\ -c -- ..\..\Source\JavaScriptCore\dfg\DFGSpeculativeJIT64.cpp
In file included from ..\..\Source\JavaScriptCore\dfg\DFGSpeculativeJIT64.cpp:27:
In file included from ..\..\Source\JavaScriptCore\dfg/DFGSpeculativeJIT.h:30:
In file included from ..\..\Source\JavaScriptCore\heap/BlockDirectory.h:29:
In file included from ..\..\Source\JavaScriptCore\heap/BlockDirectoryBits.h:29:
In file included from WTF\Headers\wtf/FastBitVector.h:31:
In file included from WTF\Headers\wtf/PrintStream.h:31:
In file included from WTF\Headers\wtf/Forward.h:24:
In file included from WTF\Headers\wtf/Optional.h:23:
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29910\include\optional(95,5): error: the parameter for this explicitly-defaulted copy constructor is const, but a member or base requires it to be non-const
    _Optional_destruct_base(const _Optional_destruct_base&) = default;
    ^
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29910\include\optional(109,35): note: in instantiation of template class 'std::_Optional_destruct_base<JSC::DFG::GPRTemporary, false>' requested here
struct _Optional_construct_base : _Optional_destruct_base<_Ty> {
                                  ^
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29910\include\xsmf_control.h(46,28): note: in instantiation of template class 'std::_Optional_construct_base<JSC::DFG::GPRTemporary>' requested here
struct _Non_trivial_move : _SMF_control_copy<_Base, _Types...> { // non-trivial move construction facade
                           ^
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29910\include\xsmf_control.h(85,31): note: in instantiation of template class 'std::_Non_trivial_move<std::_Optional_construct_base<JSC::DFG::GPRTemporary>, JSC::DFG::GPRTemporary>' requested here
struct _Deleted_copy_assign : _SMF_control_move<_Base, _Types...> { // deleted copy assignment facade
                              ^
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29910\include\xsmf_control.h(107,35): note: in instantiation of template class 'std::_Deleted_copy_assign<std::_Optional_construct_base<JSC::DFG::GPRTemporary>, JSC::DFG::GPRTemporary>' requested here
struct _Non_trivial_move_assign : _SMF_control_copy_assign<_Base, _Types...> { // non-trivial move assignment facade
                                  ^
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.28.29910\include\optional(154,26): note: in instantiation of template class 'std::_Non_trivial_move_assign<std::_Optional_construct_base<JSC::DFG::GPRTemporary>, JSC::DFG::GPRTemporary>' requested here
class optional : private _SMF_control<_Optional_construct_base<_Ty>, _Ty> {
                         ^
..\..\Source\JavaScriptCore\dfg\DFGSpeculativeJIT64.cpp(1935,32): note: in instantiation of template class 'std::optional<JSC::DFG::GPRTemporary>' requested here
        Optional<GPRTemporary> scratch;
                               ^
1 error generated.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=211674
[Bug 211674] Switch from WTF::Optional to std::optional
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