partial void Action(MonoTouch.Foundation.NSObject sender)
{
var expr = SimpleExpressions.TestConstant(count++);
var variable = SimpleExpressions.TestVariable();
Label.Text = string.Format("Expression: {0} - {1}", expr, variable);
}
public FilterAge()
{
SimpleExpressions.Add("default", (row) => true);
SimpleExpressions.Add("<", (row) => GetAge(ColumnAge, row) < AgeComper);
SimpleExpressions.Add(">", (row) => GetAge(ColumnAge, row) > AgeComper);
SimpleExpressions.Add("<=", (row) => GetAge(ColumnAge, row) <= AgeComper);
SimpleExpressions.Add(">=", (row) => GetAge(ColumnAge, row) >= AgeComper);
SimpleExpressions.Add("=", (row) => GetAge(ColumnAge, row).Equals(AgeComper));
SimpleExpressions.Add("<>", (row) => !GetAge(ColumnAge, row).Equals(AgeComper));
}
public Func <DataRow, bool> Build()
{
var expression = CurrentExpression;
CurrentExpression = null;
if (expression == null || !SimpleExpressions.ContainsKey(expression))
{
return(SimpleExpressions["default"]);
}
return(SimpleExpressions[expression]);
}
public static void Main(string[] args)
{
SimpleExpressions.SimpleTest();
Console.WriteLine("Hello");
#if FIXME
var a = SimpleExpressions.TestConstant(8);
var b = SimpleExpressions.Add(3, 5);
Console.WriteLine(a);
Console.WriteLine(b);
#endif
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
Button button = FindViewById <Button> (Resource.Id.myButton);
button.Click += delegate {
var expr = SimpleExpressions.TestConstant(count++);
button.Text = string.Format("Expression: {0}", expr);
};
}
public void TestSimpleExpression()
{
Func <string, int> env =
s => { if (s == "x")
{
return(5);
}
else if (s == "y")
{
return(7);
}
else
{
throw new Exception("");
} };
var exp = SimpleExpressions.OfAdd(SimpleExpressions.OfVar("x"), SimpleExpressions.OfMul(SimpleExpressions.OfNum(2),
SimpleExpressions.OfVar("y")));
var r = exp.Eval(env);
Assert.That(r, Is.EqualTo(19));
}
