依赖注入框架的C#兑现(连载之二）赤裸裸的实现

依赖注入框架的C#实现(连载之二）赤裸裸的实现
原贴不能发了，只好重起一个。
完整代码
1。 依赖关系就是使用关系。
2。依赖关系的解耦，需要用接口查找实现，字典是最好的工具。
3. 以下就是赤裸裸的实现，不堪如目，但是简单好理解。最主要是可以让测试通过！！！
先放接口，便于理解：

C# code

namespace Skight.LightWeb.Domain{    public interface Resolver    {        Dependency get<Dependency>();    }}

C# code

using System;using System.Collections.Generic;namespace Skight.LightWeb.Domain{    public class ResolverImpl:Resolver    {        private readonly IDictionary<Type, object> item_resolvers;        public ResolverImpl(IDictionary<Type, object> itemResolvers)        {            item_resolvers = itemResolvers;        }        public Dependency get<Dependency>()        {            return (Dependency) item_resolvers[typeof (Dependency)];        }    }

C# code

using System;using System.Collections.Generic;using Machine.Specifications;namespace Skight.LightWeb.Domain.Specs{    public class ResolverSpecs    {        private Establish context =            () =>                {                    var dictioary = new Dictionary<Type, object>();                    dictioary.Add(typeof (MockInterface), new MockImplementaion());                    subject = new ResolverImpl(dictioary);                };       private It Container_get_by_interface_should_return_its_implementation_class =            () => subject.get<MockInterface>().ShouldBeOfType<MockImplementaion>();        private static ResolverImpl subject;        private interface MockInterface { }        private class MockImplementaion : MockInterface { }            }   }