Source/cmake/OptionsMSVC.cmake

# List of disabled warnings
# When adding to the list add a short description and link to the warning's text if available
#
# https://bugs.webkit.org/show_bug.cgi?id=221508 is for tracking removal of warnings
add_compile_options(
    /wd4018 # 'token' : signed/unsigned mismatch
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-3-c4018

    /wd4060 # switch statement contains no 'case' or 'default' labels

    /wd4068 # unknown pragma
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4068

    /wd4100 # 'identifier' : unreferenced formal parameter
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4100

    /wd4127 # conditional expression is constant
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4127

    /wd4146 # unary minus operator applied to unsigned type, result still unsigned
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4146

    /wd4189 # 'identifier' : local variable is initialized but not referenced
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4189

    /wd4201 # nonstandard extension used : nameless struct/union
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4201

    /wd4244 # 'argument' : conversion from 'type1' to 'type2', possible loss of data
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4244

    /wd4245 # 'conversion' : conversion from 'type1' to 'type2', signed/unsigned mismatch
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4245

    /wd4251 # 'identifier' : class 'type' needs to have dll-interface to be used by clients of class 'type2'
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4251

    /wd4275 # non - DLL-interface class 'class_1' used as base for DLL-interface class 'class_2'
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4275

    /wd4267 # 'var' : conversion from 'size_t' to 'type', possible loss of data
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-3-c4267

    /wd4305 # 'context' : truncation from 'type1' to 'type2'
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4305

    /wd4309 # 'conversion' : truncation of constant value
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-2-c4309

    /wd4312 # 'operation' : conversion from 'type1' to 'type2' of greater size
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4312

    /wd4324 # 'struct_name' : structure was padded due to __declspec(align())
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4324

    /wd4389 # 'operator' : signed/unsigned mismatch
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4389

    /wd4456 # declaration of 'identifier' hides previous local declaration
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4456

    /wd4457 # declaration of 'identifier' hides function parameter
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4457

    /wd4458 # declaration of 'identifier' hides class member
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4458

    /wd4459 # declaration of 'identifier' hides global declaration
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4459

    /wd4505 # 'function' : unreferenced local function has been removed
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4505


    /wd4611 # interaction between 'function' and C++ object destruction is non-portable
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4611

    /wd4646 # function declared with __declspec(noreturn) has non-void return type
            # https://docs.microsoft.com/mt-mt/cpp/error-messages/compiler-warnings/compiler-warning-level-3-c4646

    /wd4701 # Potentially uninitialized local variable 'name' used
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4701

    /wd4702 # unreachable code
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4702

    /wd4706 # assignment within conditional expression
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4706
            # NOTE: Can't fix without changes to style guide

    /wd4715 # 'function' : not all control paths return a value
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4715

    /wd4722 # 'function' : destructor never returns, potential memory leak
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4722

    /wd4838 # conversion from 'type_1' to 'type_2' requires a narrowing conversion
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4838

    /wd4840 # non-portable use of class 'type' as an argument to a variadic function
            # https://docs.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4840

    /wd4996 # Your code uses a function, class member, variable, or typedef that's marked deprecated

    /wd5205 # delete of an abstract class 'type-name' that has a non-virtual destructor results in undefined behavior
)

# Create pdb files for debugging purposes, also for Release builds
add_compile_options(/Zi /GS)

set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /DEBUG /OPT:ICF /OPT:REF")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /DEBUG /OPT:ICF /OPT:REF")

# We do not use exceptions
add_definitions(-D_HAS_EXCEPTIONS=0)
add_compile_options(/EHa- /EHc- /EHs- /fp:except-)

# We have some very large object files that have to be linked
add_compile_options(/analyze- /bigobj)

# Use CRT security features
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
if (NOT COMPILER_IS_CLANG_CL)
    add_definitions(-D_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES=1)
endif ()

# Specify the source code encoding
add_compile_options(/utf-8 /validate-charset)

if (${CMAKE_BUILD_TYPE} MATCHES "Debug")
    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /OPT:NOREF /OPT:NOICF")
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /OPT:NOREF /OPT:NOICF")

    # To debug linking time issues, uncomment the following three lines:
    #add_compile_options(/Bv)
    #set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /VERBOSE /VERBOSE:INCR /TIME")
    #set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /VERBOSE /VERBOSE:INCR /TIME")
elseif (${CMAKE_BUILD_TYPE} MATCHES "Release")
    add_compile_options(/Oy-)
endif ()

if (NOT ${CMAKE_GENERATOR} MATCHES "Ninja")
    link_directories("${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/${CMAKE_BUILD_TYPE}")
    add_definitions(/MP)
endif ()
if (NOT ${CMAKE_CXX_FLAGS} STREQUAL "")
    string(REGEX REPLACE "(/EH[a-z]+) " "\\1- " CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) # Disable C++ exceptions
    string(REGEX REPLACE "/EHsc$" "/EHs- /EHc- " CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) # Disable C++ exceptions
    string(REGEX REPLACE "/GR " "/GR- " CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS}) # Disable RTTI
    # More warnings. /W4 should be specified before -Wno-* options for clang-cl.
    string(REGEX REPLACE "/W3" "" CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
    string(REGEX REPLACE "/W3" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
    WEBKIT_PREPEND_GLOBAL_COMPILER_FLAGS(/W4)
endif ()

if (MSVC_STATIC_RUNTIME)
    message(STATUS "Using multithreaded, static version of the run-time library")
    set(MSVC_RUNTIME_COMPILE_FLAG "/MT")
    set(MSVC_RUNTIME_LINKER_FLAGS "/NODEFAULTLIB:MSVCRT /NODEFAULTLIB:MSVCRTD")
else ()
    message(STATUS "Using multithreaded, dynamic version of the run-time library")
    set(MSVC_RUNTIME_COMPILE_FLAG "/MD")
    # No linker flags are required
endif ()

foreach (flag_var
    CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
    CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
    CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
    CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
    # Use the multithreaded static runtime library instead of the default DLL runtime.
    string(REGEX REPLACE "/MD" "${MSVC_RUNTIME_COMPILE_FLAG}" ${flag_var} "${${flag_var}}")

    # No debug runtime, even in debug builds.
    if (NOT DEBUG_SUFFIX)
        string(REGEX REPLACE "${MSVC_RUNTIME_COMPILE_FLAG}d" "${MSVC_RUNTIME_COMPILE_FLAG}" ${flag_var} "${${flag_var}}")
        string(REGEX REPLACE "/D_DEBUG" "" ${flag_var} "${${flag_var}}")
    endif ()
endforeach ()

# Make sure incremental linking is turned off, as it creates unacceptably long link times.
string(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replace_CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS})
set(CMAKE_SHARED_LINKER_FLAGS "${replace_CMAKE_SHARED_LINKER_FLAGS} /INCREMENTAL:NO")
string(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replace_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS})
set(CMAKE_EXE_LINKER_FLAGS "${replace_CMAKE_EXE_LINKER_FLAGS} /INCREMENTAL:NO")

string(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replace_CMAKE_SHARED_LINKER_FLAGS_DEBUG ${CMAKE_SHARED_LINKER_FLAGS_DEBUG})
set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${replace_CMAKE_SHARED_LINKER_FLAGS_DEBUG} /INCREMENTAL:NO")
string(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replace_CMAKE_EXE_LINKER_FLAGS_DEBUG ${CMAKE_EXE_LINKER_FLAGS_DEBUG})
set(CMAKE_EXE_LINKER_FLAGS_DEBUG "${replace_CMAKE_EXE_LINKER_FLAGS_DEBUG} /INCREMENTAL:NO")

string(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replace_CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO ${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO})
set(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${replace_CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO} /INCREMENTAL:NO")
string(REPLACE "INCREMENTAL:YES" "INCREMENTAL:NO" replace_CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO ${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO})
set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${replace_CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /INCREMENTAL:NO")

if (COMPILER_IS_CLANG_CL)
    # FIXME: The clang-cl visual studio integration seemed to set
    # this to 1900 explicitly even when building in VS2017 with the
    # newest toolset option, but we want to be versioned to match
    # VS2017.
    add_compile_options(-fmsc-version=1911)

    # FIXME: Building with clang-cl seemed to fail with 128 bit int support
    set(HAVE_INT128_T OFF)
    list(REMOVE_ITEM _WEBKIT_CONFIG_FILE_VARIABLES HAVE_INT128_T)
endif ()

# Enable the new lambda processor for better C++ conformance
if (NOT COMPILER_IS_CLANG_CL AND MSVC_VERSION GREATER_EQUAL 1928)
    add_compile_options(/Zc:lambda)
endif ()