Support for LUA language bindings

4 files changed, 195 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d5110dc..30fefeb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -197,6 +197,7 @@ else()
 endif()
 
 OPTION(BUILD_BINDING_JAVA "Build language bindings for Java" ON)
+OPTION(BUILD_BINDING_LUA "Build language bindings for Lua" ON)
 OPTION(BUILD_BINDING_CSHARP "Build language bindings for CSharp" ON)
 OPTION(BUILD_BINDING_PHP "Build language bindings for PHP" OFF)
 
diff --git a/src/bindings/CMakeLists.txt b/src/bindings/CMakeLists.txt
index 57388f2..e75d8f2 100644
--- a/src/bindings/CMakeLists.txt
+++ b/src/bindings/CMakeLists.txt
@@ -27,6 +27,9 @@ if (SWIG_FOUND)
 		if (BUILD_BINDING_JAVA)
 			add_subdirectory(swig/java)
 		endif()
+		if (BUILD_BINDING_LUA)
+			add_subdirectory(swig/lua)
+		endif()
 		# if (BUILD_BINDING_CSHARP)
 		# 	add_subdirectory(swig/csharp)
 		# endif()
diff --git a/src/bindings/swig/lua/CMakeLists.txt b/src/bindings/swig/lua/CMakeLists.txt
new file mode 100644
index 0000000..344edec
--- /dev/null
+++ b/src/bindings/swig/lua/CMakeLists.txt
@@ -0,0 +1,32 @@
+# generate JNI library and create a jar
+# Make from within Eclipse fails miserably with the whole thing
+
+find_package(Lua)
+if(LUA_FOUND)
+	include_directories(${LUA_INCLUDE_DIR})
+else()
+	message(STATUS "No Lua headers found - not building Lua wrappers")
+	return()
+endif()
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+SET(CMAKE_SWIG_FLAGS "")
+SET(USCXML_LUA_DIR "uscxml")
+
+# we need ; to produce a space with the package .. weird
+SET_SOURCE_FILES_PROPERTIES(uscxml.i PROPERTIES SWIG_FLAGS "-w473")
+SET_SOURCE_FILES_PROPERTIES(uscxml.i PROPERTIES CPLUSPLUS ON)
+SET(CMAKE_SWIG_OUTDIR "${CMAKE_CURRENT_BINARY_DIR}/${USCXML_LUA_DIR}")
+
+SWIG_ADD_MODULE(uscxmlNativeLua lua uscxml.i)
+foreach(LUA_LIBRARY ${LUA_LIBRARIES})
+	SWIG_LINK_LIBRARIES(uscxmlNativeLua ${LUA_LIBRARY})
+endforeach()
+set_target_properties(uscxmlNativeLua PROPERTIES FOLDER "Bindings")
+set_target_properties(uscxmlNativeLua PROPERTIES COMPILE_FLAGS "-DSWIG")
+
+swig_link_libraries(uscxmlNativeLua uscxml)
+
+set(USCXML_LANGUAGE_BINDINGS "lua ${USCXML_LANGUAGE_BINDINGS}")
+set(USCXML_LANGUAGE_BINDINGS ${USCXML_LANGUAGE_BINDINGS} PARENT_SCOPE)
diff --git a/src/bindings/swig/lua/uscxml.i b/src/bindings/swig/lua/uscxml.i
new file mode 100644
index 0000000..9774cba
--- /dev/null
+++ b/src/bindings/swig/lua/uscxml.i
@@ -0,0 +1,159 @@
+%module(directors="1") uscxmlNativeLua
+
+// provide a macro for the header files
+#define SWIGIMPORTED 1
+
+%include <stl.i>
+%include <std_map.i>
+%include <std_string.i>
+%include <inttypes.i>
+%include "../stl_set.i"
+%include "../stl_list.i"
+
+// these are needed at least for the templates to work
+typedef uscxml::Blob Blob;
+typedef uscxml::Data Data;
+typedef uscxml::Event Event;
+typedef uscxml::Invoker Invoker;
+typedef uscxml::IOProcessor IOProcessor;
+typedef uscxml::DataModel DataModel;
+typedef uscxml::DataModelExtension DataModelExtension;
+typedef uscxml::ExecutableContent ExecutableContent;
+typedef uscxml::InvokerImpl InvokerImpl;
+typedef uscxml::IOProcessorImpl IOProcessorImpl;
+typedef uscxml::DataModelImpl DataModelImpl;
+typedef uscxml::ExecutableContentImpl ExecutableContentImpl;
+typedef uscxml::InterpreterIssue InterpreterIssue;
+
+%feature("director") uscxml::WrappedInvoker;
+%feature("director") uscxml::WrappedDataModel;
+%feature("director") uscxml::WrappedDataModelExtension;
+%feature("director") uscxml::WrappedIOProcessor;
+%feature("director") uscxml::WrappedExecutableContent;
+%feature("director") uscxml::WrappedInterpreterMonitor;
+
+// disable warning related to unknown base class
+#pragma SWIG nowarn=401
+// do not warn when we override symbols via extend
+#pragma SWIG nowarn=302
+// do not warn when ignoring overrided method
+#pragma SWIG nowarn=516
+
+%rename(equals) operator==; // signature is wrong, still useful
+%rename(isValid) operator bool;
+
+//**************************************************
+// This ends up in the generated wrapper code
+//**************************************************
+
+%{
+
+#include "uscxml/config.h"
+#include "../../../uscxml/Interpreter.h"
+#include "../../../uscxml/debug/InterpreterIssue.h"
+#include "../../../uscxml/interpreter/InterpreterState.h"
+#include "../../../uscxml/interpreter/InterpreterMonitor.h"
+
+#include "../../../uscxml/messages/Data.h"
+#include "../../../uscxml/messages/Event.h"
+#include "../../../uscxml/util/DOM.h"
+
+#include "../../../uscxml/plugins/Factory.h"
+#include "../../../uscxml/plugins/DataModelImpl.h"
+
+#include "../wrapped/WrappedInvoker.h"
+#include "../wrapped/WrappedDataModel.h"
+#include "../wrapped/WrappedActionLanguage.h"
+#include "../wrapped/WrappedExecutableContent.h"
+#include "../wrapped/WrappedIOProcessor.h"
+#include "../wrapped/WrappedInterpreterMonitor.h"
+
+using namespace uscxml;
+using namespace XERCESC_NS;
+
+// the wrapped* C++ classes get rid of DOM nodes and provide more easily wrapped base classes
+#include "../wrapped/WrappedInvoker.cpp"
+#include "../wrapped/WrappedDataModel.cpp"
+#include "../wrapped/WrappedActionLanguage.cpp"
+#include "../wrapped/WrappedExecutableContent.cpp"
+#include "../wrapped/WrappedIOProcessor.cpp"
+#include "../wrapped/WrappedInterpreterMonitor.cpp"
+
+%}
+
+%include "../uscxml_ignores.i"
+
+// bytearray for Blob::data
+// see: http://stackoverflow.com/questions/9934059/swig-technique-to-wrap-unsigned-binary-data
+
+#if 0
+%apply (char *STRING, size_t LENGTH) { (const char* data, size_t size) };
+
+%typemap(jni) char* getData "jbyteArray"
+%typemap(jtype) char* getData "byte[]"
+%typemap(jstype) char* getData "byte[]"
+%typemap(javaout) char* getData {
+  return $jnicall;
+}
+
+%typemap(out) char* getData {
+  $result = JCALL1(NewByteArray, jenv, ((uscxml::Blob const *)arg1)->getSize());
+  JCALL4(SetByteArrayRegion, jenv, $result, 0, ((uscxml::Blob const *)arg1)->getSize(), (jbyte *)$1);
+}
+#endif
+
+//***********************************************
+// Beautify important classes
+//***********************************************
+
+
+%include "../uscxml_beautify.i"
+
+
+//***********************************************
+// Parse the header file to generate wrappers
+//***********************************************
+
+%include "../../../uscxml/Common.h"
+%include "../../../uscxml/messages/Blob.h"
+%include "../../../uscxml/messages/Data.h"
+%include "../../../uscxml/messages/Event.h"
+
+%include "../../../uscxml/plugins/Factory.h"
+%include "../../../uscxml/interpreter/InterpreterState.h"
+%include "../../../uscxml/interpreter/InterpreterMonitor.h"
+
+//%include "../../../uscxml/interpreter/MicroStep.h"
+//%include "../../../uscxml/interpreter/ContentExecutor.h"
+
+%include "../../../uscxml/Interpreter.h"
+%include "../../../uscxml/debug/InterpreterIssue.h"
+
+%include "../../../uscxml/plugins/EventHandler.h"
+
+%include "../../../uscxml/plugins/DataModel.h"
+%include "../../../uscxml/plugins/DataModelImpl.h"
+%include "../../../uscxml/plugins/ExecutableContent.h"
+%include "../../../uscxml/plugins/ExecutableContentImpl.h"
+%include "../../../uscxml/plugins/Invoker.h"
+%include "../../../uscxml/plugins/InvokerImpl.h"
+%include "../../../uscxml/plugins/IOProcessor.h"
+%include "../../../uscxml/plugins/IOProcessorImpl.h"
+
+%include "../wrapped/WrappedInvoker.h"
+%include "../wrapped/WrappedDataModel.h"
+%include "../wrapped/WrappedActionLanguage.h"
+%include "../wrapped/WrappedExecutableContent.h"
+%include "../wrapped/WrappedIOProcessor.h"
+%include "../wrapped/WrappedInterpreterMonitor.h"
+
+
+%template(IssueList) std::list<uscxml::InterpreterIssue>;
+%template(DataList) std::list<uscxml::Data>;
+%template(DataMap) std::map<std::string, uscxml::Data>;
+%template(StringSet) std::set<std::string>;
+%template(StringVector) std::vector<std::string>;
+%template(StringList) std::list<std::string>;
+%template(ParamMap) std::map<std::string, std::list<uscxml::Data> >;
+%template(IOProcMap) std::map<std::string, IOProcessor>;
+%template(InvokerMap) std::map<std::string, Invoker>;