Whatever you do, unqualified names will be a problem. This probelm is
well known and is well documented. We should not waste time on replacing
one solution with drawbacks by another one.
Moreover, the solution proposed by Denys has no advantage whatsoever to
me.
The current solution allows easier first-time exposure to modules, and
this is in my viewpoint a very strong argument.
So I am very much against this, in addition please consider that
changing everything (module manager, linker, all the docs, many
programs) will inevitebly introduce bugs.
Christian
> -----Original Message-----
> From: owner-oz-hackers@ps.uni-sb.de
> [mailto:owner-oz-hackers@ps.uni-sb.de] On Behalf Of Denys Duchier
> Sent: Tuesday, October 02, 2001 3:50 AM
> To: hackers@mozart-oz.org
> Subject: A proposal for `system' imports
>
>
> Currently, a "naked import", i.e. without the "at" clause is
> resolved as follows: if it names a known system module, then
> that module is taken, else it is assumed to name a relative
> user module.
>
> This is very bad because whenever we add a new module to the
> standard library, we risk breaking existing programs that
> worked fine until then. It is also difficult for a user to
> keep in mind all system modules and make sure no conflict arise.
>
> Instead, I would like to propose the much simpler rule:
>
> "a naked import of Foo ALWAYS means x-oz://system/Foo.ozf"
>
> Thus "naked imports" could only be used for system modules.
> This rule is not backwards compatible, but it has the
> advantage of simplicity, stability, and consistency.
>
> A user import of a relative Foo.ozf should then be specified with:
>
> import Foo at 'Foo.ozf'
>
> The issue is becoming increasingly more pressing as we move
> towards the idea of an open ended standard library (thus
> permitting the official adoption of such important
> contributions as QTk).
>
> Comments?
>
> --
> Dr. Denys Duchier Denys.Duchier@ps.uni-sb.de
> Forschungsbereich Programmiersysteme (Programming Systems Lab)
> Universitaet des Saarlandes, Geb. 45 http://www.ps.uni-sb.de/~duchier
> Postfach 15 11 50 Phone: +49 681 302 5618
> 66041 Saarbruecken, Germany Fax: +49 681 302 5615
> -
> Please send submissions to hackers@mozart-oz.org
> and administriva mail to hackers-request@mozart-oz.org.
> The Mozart Oz web site is at http://www.mozart-oz.org/.
>
-
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