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authorBen Boeckel <ben.boeckel@kitware.com>2024-01-01 15:58:03 (GMT)
committerBen Boeckel <ben.boeckel@kitware.com>2024-01-05 10:03:29 (GMT)
commit7fc2a83fe6a0dceb4fabfd6aac99a5cb2fa09ec5 (patch)
tree5c774f65dba5a2f714dd31717ada2fae79cf79df /Tests
parentb03e3c5251596e597e81ad9cb0a435bf4675e6b7 (diff)
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Tests/CXXModules: add a test with unity build support
C++ module-using TUs cannot participate in unity builds. Add a test case for this situation.
Diffstat (limited to 'Tests')
-rw-r--r--Tests/RunCMake/CXXModules/RunCMakeTest.cmake1
-rw-r--r--Tests/RunCMake/CXXModules/examples/unity-build/CMakeLists.txt26
-rw-r--r--Tests/RunCMake/CXXModules/examples/unity-build/importable.cxx10
-rw-r--r--Tests/RunCMake/CXXModules/examples/unity-build/main.cxx6
-rw-r--r--Tests/RunCMake/CXXModules/examples/unity-build/unity.h7
-rw-r--r--Tests/RunCMake/CXXModules/examples/unity-build/unity1.cxx8
-rw-r--r--Tests/RunCMake/CXXModules/examples/unity-build/unity2.cxx10
7 files changed, 68 insertions, 0 deletions
diff --git a/Tests/RunCMake/CXXModules/RunCMakeTest.cmake b/Tests/RunCMake/CXXModules/RunCMakeTest.cmake
index fcfa60a..cd7527a 100644
--- a/Tests/RunCMake/CXXModules/RunCMakeTest.cmake
+++ b/Tests/RunCMake/CXXModules/RunCMakeTest.cmake
@@ -171,6 +171,7 @@ run_cxx_module_test(scan-with-pch)
if ("named" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(simple)
run_cxx_module_test(library library-static -DBUILD_SHARED_LIBS=OFF)
+ run_cxx_module_test(unity-build)
run_cxx_module_test(object-library)
run_cxx_module_test(generated)
run_cxx_module_test(deep-chain)
diff --git a/Tests/RunCMake/CXXModules/examples/unity-build/CMakeLists.txt b/Tests/RunCMake/CXXModules/examples/unity-build/CMakeLists.txt
new file mode 100644
index 0000000..ce1751d
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/unity-build/CMakeLists.txt
@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.28)
+project(cxx_modules_unity CXX)
+
+include("${CMAKE_SOURCE_DIR}/../cxx-modules-rules.cmake")
+
+set(CMAKE_UNITY_BUILD 1)
+
+add_executable(unity)
+target_sources(unity
+ PRIVATE
+ main.cxx
+ unity1.cxx
+ unity2.cxx
+ PRIVATE
+ FILE_SET CXX_MODULES
+ BASE_DIRS
+ "${CMAKE_CURRENT_SOURCE_DIR}"
+ FILES
+ importable.cxx)
+target_compile_features(unity PUBLIC cxx_std_20)
+
+set_property(SOURCE unity1.cxx unity2.cxx
+ PROPERTY
+ CXX_SCAN_FOR_MODULES 0)
+
+add_test(NAME unity COMMAND unity)
diff --git a/Tests/RunCMake/CXXModules/examples/unity-build/importable.cxx b/Tests/RunCMake/CXXModules/examples/unity-build/importable.cxx
new file mode 100644
index 0000000..148b033
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/unity-build/importable.cxx
@@ -0,0 +1,10 @@
+module;
+
+#include "unity.h"
+
+export module importable;
+
+export int from_import()
+{
+ return unity1() + unity2();
+}
diff --git a/Tests/RunCMake/CXXModules/examples/unity-build/main.cxx b/Tests/RunCMake/CXXModules/examples/unity-build/main.cxx
new file mode 100644
index 0000000..feb38d2
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/unity-build/main.cxx
@@ -0,0 +1,6 @@
+import importable;
+
+int main(int argc, char* argv[])
+{
+ return from_import();
+}
diff --git a/Tests/RunCMake/CXXModules/examples/unity-build/unity.h b/Tests/RunCMake/CXXModules/examples/unity-build/unity.h
new file mode 100644
index 0000000..4a65a4b
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/unity-build/unity.h
@@ -0,0 +1,7 @@
+#ifndef unity_h
+#define unity_h
+
+int unity1();
+int unity2();
+
+#endif
diff --git a/Tests/RunCMake/CXXModules/examples/unity-build/unity1.cxx b/Tests/RunCMake/CXXModules/examples/unity-build/unity1.cxx
new file mode 100644
index 0000000..fd1cbb3
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/unity-build/unity1.cxx
@@ -0,0 +1,8 @@
+#include "unity.h"
+
+#define DETECT_UNITY
+
+int unity1()
+{
+ return 0;
+}
diff --git a/Tests/RunCMake/CXXModules/examples/unity-build/unity2.cxx b/Tests/RunCMake/CXXModules/examples/unity-build/unity2.cxx
new file mode 100644
index 0000000..0f25cff
--- /dev/null
+++ b/Tests/RunCMake/CXXModules/examples/unity-build/unity2.cxx
@@ -0,0 +1,10 @@
+#include "unity.h"
+
+#ifndef DETECT_UNITY
+# error "Should have detected a unity build"
+#endif
+
+int unity2()
+{
+ return 0;
+}