static void Main(string[] args)
{
// Setup context in a state
Context c = new Context(new ConcreteStateA());
//Issue request, which toggles state
c.Request();
c.Request();
c.Request();
c.Request();
Console.ReadLine();
}
static void Main(string[] args)
{
Context context = new Context();
//Usually a tree
ArrayList list = new ArrayList();
//Populate 'abstract syntax tree
list.Add(new TerminalExpression());
list.Add(new NonTerminalExpression());
list.Add(new TerminalExpression());
list.Add(new TerminalExpression());
foreach (AbstractExpression exp in list)
{
exp.Interpret(context);
}
Console.ReadLine();
}
public abstract void Interpret(Context context);
public override void Interpret(Context context)
{
Console.WriteLine("Called Terminal.Interpret()");
}
public override void Handle(Context context)
{
context.State = new ConcreteStateB();
}
public abstract void Handle(Context context);