/
virt_not.il
81 lines (69 loc) · 1.37 KB
/
virt_not.il
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
.assembly extern mscorlib { }
.assembly virt_not { }
.module virt_not.exe
.class public A
{
.method public specialname void .ctor()
{
ldarg.0
call instance void [mscorlib]System.Object::.ctor()
ret
}
.method public void Foo()
{
ldstr "A::Foo"
call void [mscorlib]System.Console::WriteLine(string)
ret
}
.method public virtual void Bar()
{
ldstr "A::Bar"
call void [mscorlib]System.Console::WriteLine(string)
ret
}
.method public virtual void Baz()
{
ldstr "A::Baz"
call void [mscorlib]System.Console::WriteLine(string)
ret
}
}
.class public B extends A
{
.method public specialname void .ctor()
{
ldarg.0
call instance void A::.ctor()
ret
}
.method public void Foo()
{
ldstr "B::Foo"
call void [mscorlib]System.Console::WriteLine(string)
ret
}
.method public virtual void Bar()
{
ldstr "B::Bar"
call void [mscorlib]System.Console::WriteLine(string)
ret
}
.method public virtual newslot void Baz()
{
ldstr "B::Baz"
call void [mscorlib]System.Console::WriteLine(string)
ret
}
}
.method public static void Exec()
{
.entrypoint
newobj instance void B::.ctor() // create instance of derived class
castclass class A // cast it to base class
dup // we need 3 instance pointers
dup // on stack for 3 calls
call instance void A::Foo()
callvirt instance void A::Bar()
callvirt instance void A::Baz()
ret
}