SqueakMap crashes in 3.10 beta.7158
rbb at techgame.net
Thu Nov 1 06:43:51 UTC 2007
On Nov 1, 2007, at 12:26 AM, Andreas Raab wrote:
> Brian Brown wrote:
>> Hi Chris - I think you are missing one of the main points of the
>> Universe model. Universes do not pick the "most recent version of
>> anything. A particular universe has pointers to specific code
>> packages, i.e. specific mcz files which represent one and only one
>> version of that piece of code. There is nothing dynamic about it,
>> so it is really like a freebsd port or debian package - you have to
>> have specific version of the dependencies that port or package
>> needs, not just the "latest".
> That is *definitely* not true. The code in
> explicitly uses the *latest* version of a package; the basic loop
> goes like this:
> package depends do: [ :depName |
> "... some code omitted for brevity ..."
> (universe hasPackageNamed: depName) ifTrue: [
> packagesToConsider add: (universe newestPackageNamed: depName)
> and #newestPackageNamed: does just what it says:
> newestPackageNamed: name
> | potentials sorted |
> potentials _ self packagesNamed: name.
> sorted _ potentials asSortedCollection: [ :p1 :p2 | p1 version < p2
> version ].
> ^sorted last
Well, obviously a gross misunderstanding on my part, based on Lex's
initial discussions and further clarifications on what Universes are
supposed to be. I did not look at the code to verify that, but was
arguing from what I had gathered from the discussion.
In light of the actual code, I have to retract what I said, with
Thanks for pointing this out!
>> "Guaranteed to work together" means that the author of the Universe
>> has ostensibly tested that the specific package versions in that
>> Universe do in fact work together. Since it is NOT grabbing "the
>> latest code", that is a claim a Universe can make.
> Given the above, how can it?
> - Andreas
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