private void visitorPatternBtn_Click(object sender, RoutedEventArgs e)
{
// emulate 1+2+3
var expr = new Addition(
new Addition(
new Literal(1),
new Literal(2)
),
new Literal(3)
);
var expr1 = new Subtraction(
new Subtraction(
new Literal(1),
new Literal(2)
),
new Literal(3)
);
var sb = new StringBuilder();
var expressionPrinter = new ExpressionPrinter(sb);
expr.Accept(expressionPrinter);
expr1.Accept(expressionPrinter);
Console.WriteLine(sb);
// dynamic visitior
//TODO why it breaks on this code ???
//emulate 1 + 2 + 3
//var expr2 = new DynamicAddition(
// new DynamicAddition(
// new DynamicLiteral(1),
// new DynamicLiteral(2)
// ),
// new DynamicLiteral(3)
//);
//var sb1 = new StringBuilder();
//DynamicExpressionPrinter.Print((dynamic)expr2, sb);
//Console.WriteLine(sb);
}