实现两个接口同名函数

[zhouwenkan]

public interface I1
{
    void Test();
}

public interface I2
{
    void Test();
}

public class C1 : I1, I2
{
    void I1.Test()
    {
        Debug.Log("I1.Test");
    }

    void I2.Test()
    {
        Debug.Log("I2.Test");
    }
}

var s = new C1();
((I1)s).Test();
((I2)s).Test();

NullReferenceException: Object reference not set to an instance of an object.
Without useful stack information.

[liiir1985]

运行环境和ILRuntime版本分别是什么？

[zhouwenkan]

unity 2020.3.29f1
ILRuntime 2.0.2

[RainKeyBoy]

• 用例1：正常打出Log的测试用例

public static class Main
{
    public static void Test()
    {
        InterfaceUnit interfaceUnit = new InterfaceUnit();
        
        ITest test = interfaceUnit as ITest;
        
        test.Test();
    }
}

public interface ITest
{
    public void Test()
    {
        Debug.Log("InterfaceUnit");
    }
}

public class InterfaceUnit : ITest
{
    void Test()
    {
        Debug.Log("InterfaceUnit");
    }
}

• 用例2：异常的测试用例(注释掉子类的实现)

public static class Main
{
    public static void Test()
    {
        InterfaceUnit interfaceUnit = new InterfaceUnit();
        
        ITest test = interfaceUnit as ITest;
        
        test.Test();
    }
}

public interface ITest
{
    public void Test()
    {
        Debug.Log("InterfaceUnit");
    }
}

public class InterfaceUnit : ITest
{
    // public void Test()
    // {
    //     Debug.Log("InterfaceUnit");
    // }
}

• 用例3：异常的测试用例(函数声明使用ITest.Test()方式)

public static class Main
{
    public static void Test()
    {
        InterfaceUnit interfaceUnit = new InterfaceUnit();
        
        ITest test = interfaceUnit as ITest;
        
        test.Test();
    }
}

public interface ITest
{
    public void Test()
    {
        Debug.Log("InterfaceUnit");
    }
}

public class InterfaceUnit : ITest
{
    void ITest.Test()
    {
        Debug.Log("InterfaceUnit");
    }
}