Exactly. And in fact, Jess doesn't even have an "undeftemplate"
function yet, which would be a prerequisite. But "undeftemplate" is
on the short list of things to do, and so is undefmodule. These will
*probably* make the cut for 7.1.
On Jul 23, 2007, at 3:28 AM, Wolfgang Laun wrote:
Isn't a (defmodule X) just a way of setting the default namespace
for templates, facts, queries and rules? This, then, means that the
execution of a (defmodule X) doesn't really imply that a module has
come into existence. (Or does it create an empty module X and does
(focus X) achieve anything useful?)
Anyway, the point I'm trying to make is that only the arrival of
some template/fact/query/rule of some module M really establishes
that module M as a useful object. And since it is possible to
override the default module name only a look at the full name of
some new template/fact/query/rule will tell which module this item
belongs to.
Deleting a module is extremely tricky and has - in the general case
- many hidden snags:
- If (delete-module M) is executed on the RHS of a rule M::r,
what does this mean?
- What if the deleted module is on the focus stack? Remove it
silently, throw an exception,...?
- Any fact or template or query from some module M1 can be
referenced from a rule or query of some other module M2. Apart from
some complex checking, what should happen if this is detected?
- What if you have a (deftemplate M2::T2 extends M1::T1)?
- ...
kr
Wolfgang
Henrique Lopes Cardoso wrote:
I believe this was the second time you give me this kind of
answer :).
But I don't see any improvements in Jess71a2...
Can I expect undefmodule and module-related events to be added in the
next alpha version?
Thanks.
Henrique
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