1 files changed, 97 insertions, 0 deletions
diff --git a/src/core/expression/RBAPreviousModifier.cpp b/src/core/expression/RBAPreviousModifier.cpp
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+++ b/src/core/expression/RBAPreviousModifier.cpp
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+/**
+ * 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.
+ */
+
+/**
+ * PreviousModifier class definition
+ */
+
+#include "RBAPreviousModifier.hpp"
+#include "RBAExpressionVisitor.hpp"
+#include "RBAPreviousObjectWrapper.hpp"
+
+namespace rba
+{
+
+RBAPreviousModifier::RBAPreviousModifier()
+    : RBAExpression(),
+      previousObj_{std::make_unique<RBAPreviousObjectWrapper>()}
+{
+}
+
+void
+RBAPreviousModifier::accept(RBAExpressionVisitor& visitor)
+{
+  // RBASceneAllocatableCollector, 
+  // which is the only vistor that exists at the moment, 
+  // does not pass this path because it does not accept the rule object.
+  // In the future, another visitor may accept, so implement this.
+  visitor.visit(*this);
+}
+
+void
+RBAPreviousModifier::setObjReference(RBAExpression* const newObjRef)
+{
+  objReference_ = newObjRef;
+}
+
+RBAExpression* const
+RBAPreviousModifier::getObjReference() const
+{
+  return objReference_;
+}
+
+const RBARuleObject*
+RBAPreviousModifier::getReferenceObjectCore(RBAConstraintInfo* info,
+                                            RBAArbitrator* arb) const
+{
+  previousObj_->setRefObject(objReference_->getReferenceObject(info, arb));
+  return previousObj_.get();
+}
+
+#ifdef RBA_USE_LOG
+const std::string
+RBAPreviousModifier::getSymbol() const
+{
+  return "(pre)";
+}
+
+void
+RBAPreviousModifier::createHierarchy()
+{
+  objReference_->createHierarchy();
+}
+
+const std::string
+RBAPreviousModifier::getExpressionText() const
+{
+  return getSymbol() + objReference_->getExpressionText();
+}
+
+const std::string
+RBAPreviousModifier::getCoverageExpressionText() const
+{
+  return getSymbol() + objReference_->getCoverageExpressionText();
+}
+
+RBAExpressionType
+RBAPreviousModifier::getUnderlyingType() const
+{
+  return objReference_->getUnderlyingType();
+}
+
+#endif
+
+}