"Page, Bill" <[EMAIL PROTECTED]> writes:
| Gaby,
|
| On Friday, March 24, 2006 9:49 AM you wrote:
| >
| > Bill Page writes:
| > ...
| > | Have you read the actual B# paper? There is no "hand
| > | waving". The user interacts with only one type - the
| > | UserType. The UserType in turn has a well-defined
| > | relationship to the underlying types defined in the
| > | Axiom library.
| >
| > By now, I have some familiarity with the B# paper. I do
| > believe there is a "hand waving" concerning how the B#
| > interpreter works with types. The subsection "Types" in
| > §5.3 does not say much.
|
| Can you give a couple of specific examples of the kind of
| design issues where you think the authors are being too
| vague and the problems might be difficult to solve?
Yes; take the example on page 39 undr subsection "Types". What are
the rules that the type inferencer uses to infer the type
L_{&s • &n &bullet}? The asnwer is I have to AXIOM's rules.
Now, where are the AXIOM's rules defined. I turned over the paper I
mentioned earlier, but I can't fiind the real rules.
Currently, I'm just parsing B# -- so I don't get to translate yet.
[and the parser is a quick&dirty Perl script; I'll switch to BOOT
later and I'm more conformtable with it.]
| > I also read the paper
| >
| > "The Type Inference and Coercion Facilities in the
| > Scracthpad II Interpreter" by the duo Sutor & Jenks.
| >
| > The description there is informal, sufficient to convey the
| > general feeling of how the type system works. However,
| > it lacks the "essence" that would make it acceptable to a
| > compiler writer, or even at a contemporary programming
| > language conferences :-)
|
| Did I just see you gesture wildly with your hands? ;)
:-)
| > I suspect the meat must be the papers refered to as [1] [3]
| > [4], [5], [7] [8]. I currently have access to none of them,
| > except [1].
|
| Please let me know if you manage to get copies of some of
| these. I am trying hard to pull together a complete reference
| library of Axiom design papers and publications on the Axiom
| Portal.
The copies I have are from the ACM portal, so I don't think I have
permission to put them on Axiom's portal. The ones I'm missing are
IBM related; maybe Tim can help there?
-- Gaby
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