Tests/CXXModulesCompile: add a test for builddb with empty config

2026-09-25 04:09:36 +03:00 · 2026-05-22 13:49:26 -04:00
parent bf442e9deb
commit 3469cc0a46
15 changed files with 611 additions and 0 deletions
@@ -246,6 +246,10 @@ if ("build_database" IN_LIST CMake_TEST_MODULE_COMPILATION)
  set(RunCMake_CXXModules_NO_TEST 1)

  run_cxx_module_test(exp-builddb)
+  # Skip for multi-config generators.
+  if (NOT RunCMake_GENERATOR_IS_MULTI_CONFIG)
+    run_cxx_module_test(exp-builddb-emptyconfig)
+  endif ()

  unset(RunCMake_CXXModules_NO_TEST)
  unset(RunCMake_CXXModules_TARGETS)
@@ -0,0 +1,11 @@
+include("${CMAKE_CURRENT_LIST_DIR}/build-database-check.cmake")
+
+check_build_database("exp-builddb-emptyconfig" "build_database.json" NO_EXIST)
+check_build_database("exp-builddb-emptyconfig" "build_database_CXX.json" NO_EXIST)
+
+check_build_database("exp-builddb-emptyconfig" "build_database_CXX_Debug.json" NO_EXIST)
+check_build_database("exp-builddb-emptyconfig" "build_database_Debug.json" NO_EXIST)
+
+check_build_database("exp-builddb-emptyconfig" "CMakeFiles/export_build_database.dir/CXX_build_database.json" JUST_TARGET)
+
+string(REPLACE ";" "\n  " RunCMake_TEST_FAILED "${RunCMake_TEST_FAILED}")
@@ -0,0 +1,11 @@
+include("${CMAKE_CURRENT_LIST_DIR}/build-database-check.cmake")
+
+check_build_database("exp-builddb-emptyconfig" "build_database.json" NO_EXIST)
+check_build_database("exp-builddb-emptyconfig" "build_database_CXX.json" NO_EXIST)
+
+check_build_database("exp-builddb-emptyconfig" "build_database_CXX_Debug.json" NO_EXIST)
+check_build_database("exp-builddb-emptyconfig" "build_database_Debug.json" NO_EXIST)
+
+check_build_database("exp-builddb-emptyconfig" "CMakeFiles/export_build_database.dir/CXX_build_database.json" NO_EXIST)
+
+string(REPLACE ";" "\n  " RunCMake_TEST_FAILED "${RunCMake_TEST_FAILED}")
@@ -0,0 +1,5 @@
+CMake Warning \(experimental\) in CMakeLists\.txt:
+  CMake's support for exporting build databases is experimental\.  It is meant
+  only for experimentation and feedback to CMake developers\.
+This warning is for project developers\.  Use -Wno-author or -Wno-experimental
+to suppress it\.
@@ -0,0 +1,8 @@
+include("${CMAKE_CURRENT_LIST_DIR}/build-database-check.cmake")
+
+check_build_database("exp-builddb-emptyconfig" "build_database.json" ALL)
+check_build_database("exp-builddb-emptyconfig" "build_database_CXX.json" JUST_CXX)
+
+check_build_database("exp-builddb-emptyconfig" "CMakeFiles/export_build_database.dir/CXX_build_database.json" JUST_TARGET)
+
+string(REPLACE ";" "\n  " RunCMake_TEST_FAILED "${RunCMake_TEST_FAILED}")
@@ -0,0 +1,8 @@
+include("${CMAKE_CURRENT_LIST_DIR}/../build-database-check.cmake")
+
+check_build_database("exp-builddb-emptyconfig" "build_database.json" NO_EXIST)
+check_build_database("exp-builddb-emptyconfig" "build_database_CXX.json" JUST_CXX)
+
+check_build_database("exp-builddb-emptyconfig" "CMakeFiles/export_build_database.dir/CXX_build_database.json" JUST_TARGET)
+
+string(REPLACE ";" "\n  " RunCMake_TEST_FAILED "${RunCMake_TEST_FAILED}")
@@ -0,0 +1,93 @@
+cmake_minimum_required(VERSION 3.29)
+project(cxx_modules_export_build_database CXX)
+
+# Force empty configuration.
+set(CMAKE_BUILD_TYPE "")
+
+include("${CMAKE_SOURCE_DIR}/../cxx-modules-rules.cmake")
+
+include("${CMAKE_SOURCE_DIR}/../export-build-database-setup.cmake")
+
+# _MBCS default append for MSVC ABI workaround: see CMP0204
+# So, force add the default value for all platforms to be consistent.
+cmake_policy(SET CMP0204 NEW)
+add_compile_definitions(_MBCS)
+
+add_compile_options(-Dfrom_compile_options)
+add_compile_definitions(-Dfrom_compile_definitions)
+include_directories(from_include_directories)
+
+add_library(provide_flags INTERFACE)
+target_compile_options(provide_flags
+  INTERFACE
+    -Ddep_interface_option)
+target_compile_definitions(provide_flags
+  INTERFACE
+    dep_interface_define)
+target_include_directories(provide_flags
+  INTERFACE
+    dep_interface_include)
+
+add_library(export_build_database)
+target_sources(export_build_database
+  PRIVATE
+    lib.cxx
+  PUBLIC
+    FILE_SET modules
+      TYPE CXX_MODULES
+      BASE_DIRS
+        "${CMAKE_CURRENT_SOURCE_DIR}"
+      FILES
+        importable.cxx)
+target_compile_features(export_build_database PUBLIC cxx_std_20)
+target_link_libraries(export_build_database
+  PRIVATE
+    provide_flags)
+
+set_property(SOURCE importable.cxx APPEND
+  PROPERTY COMPILE_FLAGS "-Dfrom_source_flag")
+set_property(SOURCE importable.cxx APPEND
+  PROPERTY COMPILE_OPTIONS "-Dfrom_source_option")
+set_property(SOURCE importable.cxx APPEND
+  PROPERTY COMPILE_DEFINITIONS "from_source_define")
+
+set_property(TARGET export_build_database APPEND
+  PROPERTY COMPILE_FLAGS "-Dfrom_compile_flags")
+target_compile_options(export_build_database
+  PRIVATE
+    -Dtarget_private_option
+  INTERFACE
+    -Dtarget_interface_option
+  PUBLIC
+    -Dtarget_public_option)
+target_compile_definitions(export_build_database
+  PRIVATE
+    target_private_define
+  INTERFACE
+    target_interface_define
+  PUBLIC
+    target_public_define)
+target_include_directories(export_build_database
+  PRIVATE
+    target_private_include
+  INTERFACE
+    target_interface_include
+  PUBLIC
+    target_public_include)
+
+install(TARGETS export_build_database
+  EXPORT CXXModules
+  FILE_SET modules DESTINATION "lib/cxx/miu")
+export(EXPORT CXXModules
+  NAMESPACE CXXModules::
+  FILE "${CMAKE_CURRENT_BINARY_DIR}/export_build_database-targets.cmake")
+install(TARGETS provide_flags
+  EXPORT CXXModulesDeps)
+export(EXPORT CXXModulesDeps
+  NAMESPACE CXXModules::
+  FILE "${CMAKE_CURRENT_BINARY_DIR}/export_build_database-dep-targets.cmake")
+file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/export_build_database-config.cmake"
+  "include(\"\${CMAKE_CURRENT_LIST_DIR}/export_build_database-dep-targets.cmake\")
+include(\"\${CMAKE_CURRENT_LIST_DIR}/export_build_database-targets.cmake\")
+set(\${CMAKE_FIND_PACKAGE_NAME}_FOUND 1)
+")
@@ -0,0 +1,6 @@
+export module importable;
+
+export int from_import()
+{
+  return 0;
+}
@@ -0,0 +1,6 @@
+import importable;
+
+int f()
+{
+  return from_import();
+}
@@ -0,0 +1,153 @@
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