static void Main(string[] args)
{
var theFoo = new Foo();
int count = theFoo.Accept(new CountVisitor());
}
public void TestVisitor()
{
Foo root = new Foo(0);
Foo foo1 = new Foo(1);
Foo foo2 = new Foo(2);
Foo foo3 = new Foo(3);
Foo foo4 = new Foo(4);
Foo foo5 = new Foo(5);
// root
// foo1
// foo3
// foo4
// foo5
// foo2
root.Children.Add(foo1);
root.Children.Add(foo2);
foo1.Children.Add(foo3);
foo1.Children.Add(foo4);
foo4.Children.Add(foo5);
ResultCollectingVisitor visitor = new ResultCollectingVisitor();
root.Accept(visitor, NextVisitOrder.PositiveOrder);
Result[] results = new Result[] {
new Result()
{
Foo = root, IsEnd = false
},
new Result()
{
Foo = foo1, IsEnd = false
},
new Result()
{
Foo = foo3, IsEnd = false
},
new Result()
{
Foo = foo3, IsEnd = true
},
new Result()
{
Foo = foo4, IsEnd = false
},
new Result()
{
Foo = foo5, IsEnd = false
},
new Result()
{
Foo = foo5, IsEnd = true
},
new Result()
{
Foo = foo4, IsEnd = true
},
new Result()
{
Foo = foo1, IsEnd = true
},
new Result()
{
Foo = foo2, IsEnd = false
},
new Result()
{
Foo = foo2, IsEnd = true
},
new Result()
{
Foo = root, IsEnd = true
},
};
for (int i = 0; i < visitor.Result.Count; ++i)
{
Assert.AreEqual(results[i], visitor.Result[i]);
}
}
