Re: [squeak-dev] new blog post plus closure bootstrap code

On Tue, Jul 22, 2008 at 06:14:51PM -0700, Eliot Miranda wrote:
> Hi All,
>     I've made a significant step today in making available the first cut of
> my closure scheme.  There is a new blog post on
> www.mirandabanda.org/cogblogabout the closure bytecodes which at the
> end includes a pointer to the
> bootstrap @ www.mirandabanda.org/files/Cog/Closures0808/Bootstrap/.  The
> bootstrap has been tested on internal Qwaq images, and on Croquet 1.0 and
> Squeak 3.9.  I'd love to hear of other ports, e.g. to 3.10 and to Spoon.
>  I'm interested in bug reports (I haven't yet tested eToys) and code reviews
> and tying up loose ends (for example I broke decompile with temp names and
> haven't fixed it).

I can confirm building a VM from the ClosureVMBootstrap.1.cs change set with
SqueakSource VMMaker-dtl.104 (non-Croquet) on Squeak 3.8 on Linux. It works
fine and I see no issues with backward compatibility for existing images.

I am attaching the changes that were required to merge ClosureVMBootstrap with
a non-Qwaq VMMaker. The changes were as follows:

- Add missing ClassBlockClosure var to ObjectMemory
- Merge class and instance var defs in Interpreter
- Remove large integer stuff from #initializePrimitiveTable (is this for Croquet?)
- Delete (now unused) primitiveObsoleteIndexedPrimitive

The ClassBlockClosure definition in ObjectMemory was probably an accidental
omission from the ClosureVMBootstrap change set, and the remainder of the
changes are a straightforward merge for a different flavor of VMMaker.

I have not yet progressed as far as getting the closure compiler loaded,
but the closure-enabled VM seems to be trouble-free and fully backward
compatible.

Dave