public void Print(AdditionExpression ae, StringBuilder sb)
{
sb.Append("(");
Print((dynamic)ae.Left, sb);
sb.Append(" + ");
Print((dynamic)ae.Right, sb);
sb.Append(")");
}
public void Test_using_the_print_visitor()
{
Expression exp = new AdditionExpression(
new DoubleExpression(1.0),
new AdditionExpression(
new DoubleExpression(2.0),
new DoubleExpression(3.0))
);
var sb = new StringBuilder();
var printer = new ExpressionPrinter();
printer.Print((dynamic)exp, sb);
string result = sb.ToString();
Assert.False(string.IsNullOrEmpty(result));
}