[Vm-dev] Tim's New Compiled Method format

[Ron Teitelbaum]

Can we get a clear statement about what a rewrite process would look like?

Can the new author read the old method?  Can someone else produce a
requirements document that specifies what the method needs to do?  Can
someone write tests from the old method that need to pass with the new
method?

I still do not understand what we are allowed to do in order to reverse
engineer an unclean method.

Thanks,
Ron Teitelbaum

> -----Original Message-----
> From: Matthew Fulmer
> 
> 
> On Thu, Mar 27, 2008 at 09:27:45AM +1300, Michael van der Gulik wrote:
> >    On Thu, Mar 27, 2008 at 7:06 AM, Matthew Fulmer <tapplek at gmail.com>
> wrote:
> >
> >      While talking to Craig about spoon, I learned that Tim made a
> >      new Compiled Method format using normal objects, and (I think) a
> >      VM that ran it. I tried searching for it and came up with:
> >
> >      New Compiled Method Format and 3.0 Image
> >         http://wiki.squeak.org/squeak/750
> >      VI4
> >         http://wiki.squeak.org/squeak/2119
> >      Version 4
> >         http://wiki.squeak.org/squeak/3716
> >
> >      I have been discussing what would go into Squeak 4 since we now
> >      need to create such a system, due to the urgency of the license
> >      situation, and I am now leaning toward Spoon rather than
> >      KernelImage as a basis for Squeak4, after learning the magnitude
> >      of the relicense effort on Monday.
> >
> >    Tell us about the magnitude of this relicense effort... is it
> >    unachievable? Would we spend less time on the relicensing if we "just
> did
> >    it" using vanilla 3.10, or would it be less time in total to include
> this
> >    refactoring first and then do the relicensing?
> 
> Currently, August 2008 is looking like a reasonable release
> time. For details, see
> http://installer.pbwiki.org/LicenseAuditing
> 
> We have 2 months or so in which no relicensing work can happen
> (in Plan B), and that time could be spent getting a VM bug-fix
> into the image.
> 
> >
> >    Personally, I will eventually (1-2 years maybe?) need a refactored
> and
> >    tidied up CompiledMethod format for my own project, so I have a
> vested
> >    interest in this.
> >
> >    Gulik.
> >
> >    --
> >    http://people.squeakfoundation.org/person/mikevdg
> >    http://gulik.pbwiki.com/
> 
> 
> --
> Matthew Fulmer -- http://mtfulmer.wordpress.com/