public override void ExitUnaryExpression(UnaryExpression unaryExpression) { switch (unaryExpression.Operator.Text) { case "+": unaryExpression.ReplaceWith(unaryExpression.Base); break; case "-": unaryExpression.ReplaceWith(new BinaryExpression( unaryExpression.Context, new INode[] { new NumberLiteral(unaryExpression.Context, 0), unaryExpression.Operator, unaryExpression.Base })); break; } }