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option(SIMDJSON_EXCEPTIONS "Enable simdjson's exception-throwing interface" ON)
if(NOT SIMDJSON_EXCEPTIONS)
message(STATUS "simdjson exception interface turned off. \
Code that does not check error codes will not compile.")
simdjson_add_props(target_compile_definitions PUBLIC SIMDJSON_EXCEPTIONS=0)
if(MSVC)
if(NOT is_top_project)
message(AUTHOR_WARNING "Turning SIMDJSON_EXCEPTIONS off requires \
editing CMAKE_CXX_FLAGS")
endif()
# CMake currently /EHsc as a default flag in CMAKE_CXX_FLAGS on MSVC.
# Replacing this with a more general abstraction is a WIP
# (see https://gitlab.kitware.com/cmake/cmake/-/issues/20610)
# /EHs enables standard C++ stack unwinding when catching exceptions
# (non-structured exception handling)
# /EHc used in conjection with /EHs indicates that extern "C" functions
# never throw (terminate-on-throw)
# Here, we disable both with the - argument negation operator
if(CMAKE_CXX_FLAGS)
string(REPLACE "/EHsc" "/EHs-c-" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
endif()
# Because we cannot change the flag above on an individual target (yet), the
# definition below must similarly be added globally
add_definitions(-D_HAS_EXCEPTIONS=0)
elseif(CMAKE_COMPILER_IS_GNUCC)
simdjson_add_props(target_link_libraries PRIVATE -fno-exceptions)
endif()
endif()
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