• Jarrett Billingsley (22/22) Jul 06 2005 This.. uhh, shouldn't be legal:
• Andrew Fedoniouk (8/30) Jul 06 2005 Yep, it should be declared as:
• Ben Hinkle (4/26) Jul 07 2005 presumably you can also set the entire vtbl to point somewhere else or
• Jarrett Billingsley (5/7) Jul 07 2005 I suppose so..

"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

This.. uhh, shouldn't be legal:

import std.stdio;

class A
{
 void fork()
 {
  writefln("hi");
 }

 void knife()
 {
  writefln("maybe");
 }
}

void main()
{
 A.classinfo.vtbl[6]=A.classinfo.vtbl[7];
 A a=new A;
 a.fork();
}

Prints "maybe" (i.e. calls knife())!

I know the classinfo is probably still kind of beta-ish, but I don't think 
we should be able to _modify_ it.. 

"Andrew Fedoniouk" <news terrainformatica.com> writes:

"Jarrett Billingsley" <kb3ctd2 yahoo.com> wrote in message 
news:dah8kn$2n0a$1 digitaldaemon.com...
 This.. uhh, shouldn't be legal:

 import std.stdio;

 class A
 {
 void fork()
 {
  writefln("hi");
 }

 void knife()
 {
  writefln("maybe");
 }
 }

 void main()
 {
 A.classinfo.vtbl[6]=A.classinfo.vtbl[7];
 A a=new A;
 a.fork();
 }

 Prints "maybe" (i.e. calls knife())!

 I know the classinfo is probably still kind of beta-ish, but I don't think 
 we should be able to _modify_ it..

Yep, it should be declared as:

class ClassInfo : Object
{

}

isn't it? :)

"Ben Hinkle" <bhinkle mathworks.com> writes:

"Jarrett Billingsley" <kb3ctd2 yahoo.com> wrote in message 
news:dah8kn$2n0a$1 digitaldaemon.com...
 This.. uhh, shouldn't be legal:

 import std.stdio;

 class A
 {
 void fork()
 {
  writefln("hi");
 }

 void knife()
 {
  writefln("maybe");
 }
 }

 void main()
 {
 A.classinfo.vtbl[6]=A.classinfo.vtbl[7];
 A a=new A;
 a.fork();
 }

 Prints "maybe" (i.e. calls knife())!

 I know the classinfo is probably still kind of beta-ish, but I don't think 
 we should be able to _modify_ it..

presumably you can also set the entire vtbl to point somewhere else or 
change just about anything, no? 

"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

"Ben Hinkle" <bhinkle mathworks.com> wrote in message 
news:dajc4r$18nt$1 digitaldaemon.com...
 presumably you can also set the entire vtbl to point somewhere else or 
 change just about anything, no?

I suppose so..

You would think that this stuff would be stored in a read-only section of 
the EXE!