package qlProject.ast.expression.arithmeticExpr; import qlProject.ast.expression.IExpression; import qlProject.ast.expression.IExpressionVisitor; import qlProject.ast.expression.UnaryExpression; public class NegationExpr extends UnaryExpression { public NegationExpr(IExpression subExpr){ super(subExpr); } @Override public Object accept(IExpressionVisitor visitor){ return visitor.visit(this); } }