public override void accept(CSTVisitor visitor)
 {
     if ((operationNodeCS != null) && (expressionNodeCS != null))
     {
         visitor.visitDefOperationExpressionBegin(this);
         operationNodeCS.accept(visitor);
         expressionNodeCS.accept(visitor);
         visitor.visitDefOperationExpressionEnd(this);
     }
 }
 public override void accept(CSTVisitor visitor)
 {
     if (operationNodeCS != null)
     {
         operationNodeCS.accept(visitor);
         visitor.visitOperationContextDeclCSBegin(this);
         accept(this.constraintsNodesCS, visitor);
         visitor.visitOperationContextDeclCSEnd(this);
     }
 }