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Meta/LibTest: Build object libraries for test main files

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By using the power of object libraries and $<TARGET_OBJECTS> we can make
sure to only build TestMain.cpp and JavaScriptTestRunnerMain.cpp once.

Previously we built these cpp files into object files once for every
single test executable. This change reduces the number of total compile
jobs in a Serenity target build by around 100.
This commit is contained in:
Andrew Kaster 2021-07-27 00:19:08 -06:00 • committed by Linus Groh
parent af9be6e093
commit de2bf3f333
2 changed files with 5 additions and 4 deletions
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6
Meta/CMake/utils.cmake
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@ -77,8 +77,7 @@ function(serenity_test test_src sub_dir)
cmake_parse_arguments(SERENITY_TEST "MAIN_ALREADY_DEFINED" "CUSTOM_MAIN" "LIBS" ${ARGN})
set(TEST_SOURCES ${test_src})
if ("${SERENITY_TEST_CUSTOM_MAIN}" STREQUAL "")
set(SERENITY_TEST_CUSTOM_MAIN
"${CMAKE_SOURCE_DIR}/Userland/Libraries/LibTest/TestMain.cpp")
set(SERENITY_TEST_CUSTOM_MAIN "$<TARGET_OBJECTS:LibTestMain>")
endif()
if (NOT ${SERENITY_TEST_MAIN_ALREADY_DEFINED})
list(PREPEND TEST_SOURCES "${SERENITY_TEST_CUSTOM_MAIN}")
@ -98,8 +97,7 @@ endfunction()
function(serenity_testjs_test test_src sub_dir)
cmake_parse_arguments(SERENITY_TEST "" "CUSTOM_MAIN" "LIBS" ${ARGN})
if ("${SERENITY_TEST_CUSTOM_MAIN}" STREQUAL "")
set(SERENITY_TEST_CUSTOM_MAIN
"${CMAKE_SOURCE_DIR}/Userland/Libraries/LibTest/JavaScriptTestRunnerMain.cpp")
set(SERENITY_TEST_CUSTOM_MAIN "$<TARGET_OBJECTS:JavaScriptTestRunnerMain>")
endif()
list(APPEND SERENITY_TEST_LIBS LibJS LibCore)
serenity_test(${test_src} ${sub_dir}