Fixed a compile errror

Author: Ayuto

src/core/modules/entities/entities_props_wrap.cpp

@@ -117,7 +117,7 @@ void export_send_table(scope _props)
 void export_send_prop(scope _props)
 {
 	EXPOSE_FUNCTION_TYPEDEF(BoostSendVarProxyFn, "SendVarProxyFn")
-	EXPOSE_FUNCTION_TYPEDEF(BoostDataTableProxyFn, "DataTableProxyFn")
+	EXPOSE_FUNCTION_TYPEDEF_RET(BoostDataTableProxyFn, "DataTableProxyFn", return_by_value_policy())
 
 	class_<SendProp, SendProp *, boost::noncopyable> SendProp_("SendProp", no_init);
 

src/core/utilities/wrap_macros.h

@@ -68,6 +68,12 @@ inline void* GetFuncPtr(Function func)
 		.def(GET_PTR_NAME, &GetFuncPtr<cpp_name>, return_by_value_policy()) \
 	;
 
+#define EXPOSE_FUNCTION_TYPEDEF_RET(cpp_name, py_name, policy) \
+	class_<cpp_name>(py_name, no_init) \
+		.def("__call__", &cpp_name::operator(), policy) \
+		.def(GET_PTR_NAME, &GetFuncPtr<cpp_name>, return_by_value_policy()) \
+	;
+
 //---------------------------------------------------------------------------------
 // Surround boost python statements with this macro in order to handle exceptions.
 //---------------------------------------------------------------------------------