1using System;
 2using System.Collections.Generic;
 3using System.Linq;
 4using System.Reflection;
 5
 6namespace tests
 7{
 8    static class Reflecting
 9    {
10        static public void class_hierarchy(this Type target, Action<Type> action)
11        {
12            action(target);
13            var base_class = target.BaseType;
14            if (null != base_class) base_class.class_hierarchy(action);
15        }
16
17        static public IEnumerable<FieldInfo> collect_fields_of_type<T>(this IReflect target)
18        {
19            return target
20                .GetFields(BindingFlags.NonPublic | BindingFlags.Instance)
21                .Where(x => x.FieldType.Equals(typeof (T)));
22        }
23
24        static public void invoke_delegate_on(this FieldInfo field, object target)
25        {
26            field.GetValue(target).downcast_to<Delegate>().DynamicInvoke();
27        }
28
29        static public ConstructorInfo find_the_greediest_constructor(this Type type)
30        {
31            var all = type.GetConstructors();
32            ConstructorInfo greediest = null;
33            foreach (var constructor in all)
34            {
35                if (null == greediest)
36                {
37                    greediest = constructor;
38                    continue;
39                }
40                if (constructor.GetParameters().Length > greediest.GetParameters().Length)
41                {
42                    greediest = constructor;
43                }
44            }
45            return greediest;
46        }
47    }
48}