1 files changed, 91 insertions, 0 deletions
diff --git a/src/core/expression/RBAExpression.hpp b/src/core/expression/RBAExpression.hpp
new file mode 100644
index 0000000..9cd14e5
--- /dev/null
+++ b/src/core/expression/RBAExpression.hpp
@@ -0,0 +1,91 @@
+/**
+ * Copyright (c) 2019 DENSO CORPORATION.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Expression class header file
+ */
+
+#ifndef RBAEXPRESSION_HPP
+#define RBAEXPRESSION_HPP
+
+#include <cstdint>
+#include <string>
+#include <vector>
+#include "RBAModelElement.hpp"
+
+namespace rba
+{
+
+class RBAExpressionVisitor;
+class RBALetStatement;
+class RBAArbitrator;
+class RBARuleObject;
+class RBAConstraintInfo;
+#ifdef RBA_USE_LOG
+enum class RBAExpressionType : std::uint8_t;
+#endif
+
+class DLL_EXPORT RBAExpression : public RBAModelElement
+{
+protected:
+  RBAExpression()=default;
+  RBAExpression(const RBAExpression&)=delete;
+  RBAExpression(const RBAExpression&&)=delete;
+  RBAExpression& operator=(const RBAExpression&)=delete;
+  RBAExpression& operator=(const RBAExpression&&)=delete;
+
+public:
+  virtual ~RBAExpression()=default;
+  void addLetStatement(RBALetStatement* const letStatement);
+  virtual void accept(RBAExpressionVisitor& visitor);
+  bool execute(RBAConstraintInfo* const info, RBAArbitrator* const arb) const;
+  const RBARuleObject* getReferenceObject(RBAConstraintInfo* const info,
+                                          RBAArbitrator* const arb) const;
+  std::int32_t getValue(RBAConstraintInfo* const info, RBAArbitrator* const arb) const;
+  void doAction(RBAConstraintInfo* const info, RBAArbitrator* const arb);
+  const std::vector<RBALetStatement*>& getLetStatements() const;
+
+  // Log
+#ifdef RBA_USE_LOG
+  virtual const std::string getExpressionText() const;
+  virtual const std::string getCoverageExpressionText() const;
+  virtual void createHierarchy();
+  virtual RBAExpressionType getUnderlyingType() const;
+#endif
+
+protected:
+  virtual bool executeCore(RBAConstraintInfo* info, RBAArbitrator* arb) const;
+  virtual const RBARuleObject* getReferenceObjectCore(RBAConstraintInfo* info,
+                                                      RBAArbitrator* arb) const;
+  virtual std::int32_t getValueCore(RBAConstraintInfo* info,
+                                    RBAArbitrator* arb) const;
+  virtual void doActionCore(RBAConstraintInfo* info, RBAArbitrator* arb);
+
+private:
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable:4251)
+#endif
+  std::vector<RBALetStatement*> letStatements_;
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+};
+
+}
+
+#endif