调用超类方法后调用子类方法

Question

最终，我想在调用超类方法之后调用子类方法。我有这样的代码：

public class SuperClass
{
    protected WrapperClass<T> GetWrapperClass<T>()
    {
        return new WrapperClass(someStuff).Wrap<T>();
    }

    public SuperClass CommonMethod1()
    {
        // Do something
        return this;
    }

    public SuperClass CommonMethod2()
    {
        // Do something else
        return this;
    }

    // Many CommonMethods
}

public class SubClass : SuperClass
{
    public WrapperClass<SomeClass> OptionalLastMethod1()
    {
        return base.GetWrapperClass<SomeClass>();
    }

    public WrapperClass<SomeOtherClass> OptionalLastMethod2()
    {
        return base.GetWrapperClass<SomeOtherClass>();
    }
}

我想做这样的事情：

new SubClass()
    .CommonMethod1()
    .CommonMethod2()      // Returns SuperClass
    .OptionalLastMethod1();  // I would like to do something like this.

我想避免像这样将超类转换为子类：

var subClass = ((SubClass)new SubClass().CommonMethod1().CommonMethod2()).LastMethodToCall();

这里的重点是易于使用，而不是易于实施。欢迎任何意见。

Answer 1

通过这样做解决了它。 - 删除了一些不相关的代码。

public class SuperClass<S> where S : SuperClass<S>
{
    public S CommonMethod1()
    {
        // Do something
        return (S) this;
    }

    public S CommonMethod2()
    {
        // Do something else
        return (S) this;
    }

    // Many CommonMethods
}

public class SubClass : SuperClass<SubClass>
{
    public WrapperClass<SomeClass> OptionalLastMethod1()
    {
        return base.GetWrapperClass<SomeClass>();
    }

    public WrapperClass<SomeOtherClass> OptionalLastMethod2()
    {
        return base.GetWrapperClass<SomeOtherClass>();
    }
}

调用超类方法后调用子类方法

Calling subclass method after calling superclass method

c#

generics

inheritance

subclass

superclass