public void CreateDynamicGetDelegate_PublicFieldWithInstance_CanGetValue()
{
var box = new StrongBox <object>(new object());
var field = box.GetType().GetField(nameof(box.Value)) !;
var getDelegate = field.CreateDynamicGetDelegate(box);
var result = getDelegate.Invoke();
Assert.AreSame(box.Value, result);
}
public void CreateDynamicSetDelegate_PublicField_CanSetValue()
{
var box = new StrongBox <object>();
var field = box.GetType().GetField(nameof(box.Value)) !;
var setDelegate = field.CreateDynamicSetDelegate();
var value = new object();
setDelegate.Invoke(box, value);
Assert.AreSame(value, box.Value);
}
public void CreateSetDelegate_PublicFieldWithInstance_CanSetValue()
{
var box = new StrongBox <object>();
var field = box.GetType().GetField(nameof(box.Value)) !;
var setDelegate = field.CreateSetDelegate <Action <object> >(box);
var value = new object();
setDelegate.Invoke(value);
Assert.AreSame(value, box.Value);
}
static void Assign5()
{
Title();
var box = new StrongBox<int> { Value = 3 };
var obj = Log(Expression.Constant(box), "Box");
var val = box.GetType().GetField("Value");
var fld = Expression.Field(obj, val);
var res = Expression.Lambda<Func<int>>(CSharpExpression.PreIncrementAssignChecked(fld)).Compile()();
Console.WriteLine($"{res} == (++3) --> {box.Value}");
}