.NET类型内部构件-从Microsoft CLR角度 [英] .NET Type Internals - From a Microsoft CLR Perspective

问题描述

我有两个类Class1和Program a，如下所示:

I have two classes Class1 and Program a shown below:

class Class1
 {
     public void xx()
     { 

     }
 }

 class Program : Class1
 {
     static void Main(string[] args)
     {

     }
 }

这是SOS调试器的输出...

Here is the output from SOS debugger......

!dumpmt -md  00153898
EEClass:      00151474
Module:       00152ea4
Name:         ConsoleApplication24.Program
mdToken:      b1d44c0002000003
File:         E:\c#\ConsoleApplication24\ConsoleApplication24\bin\Debug\ConsoleApplication24.exe
BaseSize:        0xc
ComponentSize:   0x0
Slots in VTable: 6
Number of IFaces in IFaceMap: 0
--------------------------------------
MethodDesc Table
   Entry MethodDesc      JIT Name
530ba790   52e94cd8   PreJIT System.Object.ToString()
530be290   52e94ce0   PreJIT System.Object.Equals(System.Object)
530be1a0   52e94d00   PreJIT System.Object.GetHashCode()
531417b0   52e94d14   PreJIT System.Object.Finalize()
0015c038   0015388c     NONE ConsoleApplication24.Program..ctor()
0015c030   0015387c      JIT ConsoleApplication24.Program.Main(System.String[])

但是，为什么在这里我没有在程序类"中看到继承的函数(即Class1的xx())????
因为当我创建Program类的实例并访问方法xx()时，它如何找到
方法????

But why here i not seen the inherited functions ( ie xx() from Class1 )in "Program class"??????
Because when i create instance of Program class and access method xx() then how it finds the
method????

推荐答案

编译器已经知道它是非虚拟的，因此它直接生成对Class1.xx()的调用.使用ildasm.exe查看生成的IL.
这里是clr烧写Class1方法表中方法xx()的地址并发出调用.这里clr不需要引用class1方法表的对象....... clr做到这一点自动....

The compiler already knows it is non-virtual so it directly generates a call to Class1.xx(). Use ildasm.exe to look at the generated IL.
here the address of the method xx() from Class1''s method table is burn by clr and emits call to it.Here clr not required the object reference to class1''s method table.......clr does it automatically....

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