1 files changed, 145 insertions, 0 deletions
diff --git a/src/core/expression/RBAImpliesOperator.cpp b/src/core/expression/RBAImpliesOperator.cpp
new file mode 100644
index 0000000..ab95dc7
--- /dev/null
+++ b/src/core/expression/RBAImpliesOperator.cpp
@@ -0,0 +1,145 @@
+/**
+ * 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.
+ */
+
+ /**
+ * implication operator class defintion file
+ */
+
+#include "RBAImpliesOperator.hpp"
+#include "RBAExpressionVisitor.hpp"
+#include "RBALogManager.hpp"
+#include "RBAModelElementType.hpp"
+#include "RBAConstraintInfo.hpp"
+
+namespace rba
+{
+
+void
+RBAImpliesOperator::accept(RBAExpressionVisitor& visitor)
+{
+  visitor.visit(*this);
+}
+
+RBAModelElementType
+RBAImpliesOperator::getModelElementType() const
+{
+  return RBAModelElementType::ImpliesOperator;
+}
+
+bool
+RBAImpliesOperator::executeCore(RBAConstraintInfo* info,
+                                RBAArbitrator* arb) const
+{
+  bool isPassed {false};
+  // Add itself to the constraint hierarchy for coverage
+  LOG_addHierarchy(LOG_getSymbol());
+  RBAConstraintInfo* const leftInfo {info->getChild(0U)};
+  // Add "left-hand side formula" to the constraint hierarchy for coverage
+  LOG_addHierarchy("#left"); 
+  const bool lhsRes {getLhsOperand()->execute(leftInfo, arb)};
+  // Remove "left-hand side formula" from the constraint hierarchy for coverage
+  LOG_removeHierarchy();
+
+  if (leftInfo->isExceptionBeforeArbitrate() == false) {
+    if (lhsRes == false) {
+      isPassed = true;
+    } else {
+      RBAConstraintInfo* const rightInfo {info->getChild(1U)};
+      // Add "right-hand side formula" to the constraint hierarchy for coverage
+      LOG_addHierarchy("#right");
+      const bool rhsRes {getRhsOperand()->execute(rightInfo, arb)};
+      // Remove "right-hand side formula"
+      // from the constraint hierarchy for coverage
+      LOG_removeHierarchy();
+      if (rightInfo->isExceptionBeforeArbitrate() == true) {
+        info->setExceptionBeforeArbitrate(true);
+      } else if (rhsRes == true) {
+        isPassed = true;
+      } else {
+        ;
+      }
+    }
+  } else {
+    info->setExceptionBeforeArbitrate(true);
+    // Evaluate the right-hand side fromula
+    // to get the right side allocatable of arbitration target
+    RBAConstraintInfo* const rightInfo {info->getChild(1U)};
+    // Add "right-hand side formula" to the constraint hierarchy for coverage
+    LOG_addHierarchy("#right");
+    static_cast<void>(getRhsOperand()->execute(rightInfo, arb));
+    // Remove "right-hand side formula" to the constraint hierarchy for coverage
+    LOG_removeHierarchy();
+  }
+#ifdef RBA_USE_LOG
+  if (info->isExceptionBeforeArbitrate()) {
+    LOG_arbitrateConstraintLogicLogLine(
+        "      [" + LOG_getExpressionText() + "] before arbitrate skip");
+    LOG_coverageConstraintExpressionLog(LOG_getCoverageExpressionText(),
+                                        RBAExecuteResult::SKIP);
+  } else if (isPassed == true) {
+    LOG_arbitrateConstraintLogicLogLine(
+        "      [" + LOG_getExpressionText() + "] true");
+    LOG_coverageConstraintExpressionLog(LOG_getCoverageExpressionText(),
+                                        RBAExecuteResult::TRUE);
+  } else {
+    LOG_arbitrateConstraintLogicLogLine(
+        "      [" + LOG_getExpressionText() + "] false");
+    LOG_coverageConstraintExpressionLog(LOG_getCoverageExpressionText(),
+                                        RBAExecuteResult::FALSE);
+  }
+#endif
+  // Remove itself from the constraint hierarchy for coverage
+  LOG_removeHierarchy();
+  return isPassed;
+}
+
+#ifdef RBA_USE_LOG
+const std::string
+RBAImpliesOperator::getSymbol() const
+{
+  return "->";
+}
+
+void
+RBAImpliesOperator::createHierarchy()
+{
+  RBAExpression* exprLhs = getLhsOperand();
+  RBAExpression* exprRhs = getRhsOperand();
+
+  // Add itself to the constraint hierarchy for coverage
+  LOG_addHierarchy(getSymbol());
+  RBALogManager::coverageHierarchyOfConstraintExpressionLog(getCoverageExpressionText(), this);
+
+  // Add "left-hand side formula" to the constraint hierarchy for coverage
+  LOG_addHierarchy("#left");
+  exprLhs->createHierarchy();
+  // Remove "left-hand side formula" from
+  //  the constraint hierarchy for coverage
+  LOG_removeHierarchy();
+
+  // Add "right-hand side formula" to the constraint hierarchy for coverage
+  LOG_addHierarchy("#right");
+  exprRhs->createHierarchy();
+  // Remove "right-hand side formula" from
+  //  the constraint hierarchy for coverage
+  LOG_removeHierarchy();
+
+  // Remove itself from the constraint hierarchy for coverage
+  LOG_removeHierarchy();
+}
+#endif
+
+}