[cxxmodules] Add test for testing implicit module build error

Author: Teemperor

root/meta/rootcling-modules/CMakeLists.txt

@@ -0,0 +1,3 @@
+if(runtime_cxxmodules)
+  add_subdirectory(module-dep-order)
+endif()

root/meta/rootcling-modules/module-dep-order/.gitignore

@@ -0,0 +1 @@
+.rootrc

root/meta/rootcling-modules/module-dep-order/CMakeLists.txt

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+set(ENV{ROOT_MODULES} 1)
+ROOTTEST_ADD_TEST(cxxmodules-implicit-build-error
+                  COMMAND ${ROOT_rootcling_CMD} -f ${CMAKE_CURRENT_BINARY_DIR}/out.cxx -cxxmodule
+                          implicit_build.h
+                          implicit_build_linkdef.h
+                  WORKING_DIR ${CMAKE_CURRENT_SOURCE_DIR}
+                  PASSREGEX "Had to build non-system module A implicitly")

root/meta/rootcling-modules/module-dep-order/implicit_build.h

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+#pragma once
+
+#include "inc/A.h"

root/meta/rootcling-modules/module-dep-order/implicit_build_linkdef.h

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+// $Id$
+// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
+
+/**************************************************************************
+ * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
+ * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for          *
+ * full copyright notice.                                                 *
+ **************************************************************************/
+
+#pragma link off all functions;
+#pragma link off all globals;
+#pragma link off all classes;
+
+#pragma link C++ class A+;

root/meta/rootcling-modules/module-dep-order/inc/A.h

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+#pragma once
+
+class A{};

root/meta/rootcling-modules/module-dep-order/inc/module.modulemap

@@ -0,0 +1 @@
+module A { header "A.h" export * }

root/meta/rootcling-modules/module-dep-order/module.modulemap

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+module out { header "implicit_build.h" export * }