The only problem I had with that kind of approach, when I played with
it years ago, was that there isn't an easy way to know what temporary
object get created by subroutine calls.
ie: you can do this
MERGE @("RESULT="_$$ObjectCreating^Call(possible,arguments))
with ObjectCreating^Call being code that creates a new object on
the fly as the result of the call. (perhaps using ^TMP($J, or something
like that as a temporary storage location.)
The problem is recognizing which ones are still in use and which
ones need to be garbage collected.
MUMPS indirection (ie: extremely late-binding) is very useful, but
using it in a disciplined way is tricky at times.
David
>
> Speaking of classes, have you given thought to making
> globals/arrays act like objects by putting code into
> them, and merging to instantiate a new object?
>
> Kevin
>
>
> --- Gregory Woodhouse
> <[EMAIL PROTECTED]> wrote:
>
> > I know I'm being hopelessly pedantic here (but maybe
> > there is
> > ultimately some point to it). If you take the point
> > of view that
> > files are classes and file entries are objects (an
> > excellent way to
> > think about Fileman, IMO), the difference becomes
> > clear: GETS^DIQ
> > gives you fairly comprehensive information about an
> > object (even if
> > you only know the name of its class), but you've
> > been asking for a
> > way to get information about a class, not an object
> > of that class.
> > Introspection is involved in each case, but in one
> > case it is
> > explicit, but in the other it is implicit in the
> > objects ability to
> > describe itself. This basically comes down to the
> > design principle
> > (which I think is a good one) that objects are
> > "things with
> > responsibilities" and not merely behavior and data
> > bundled up on a
> > single package.
> >
> > ===
> > Gregory Woodhouse
> > [EMAIL PROTECTED]
> >
> > "The most profound technologies are those that
> > disappear."
> > --Mark Weiser
> >
> >
> >
> > On Jul 11, 2005, at 7:58 AM, Gregory Woodhouse
> > wrote:
> >
> > > Well, this is a little different from your stated
> > requirement.
> > > Without knowing the fields in your file, you can
> > use "*" or "**" to
> > > get all the field values for a *file entry*. If
> > you are serializing
> > > file entries using XML, that may be exactly what
> > you want). But you
> > > asked for something else. You asked for a way to
> > get a list of
> > > fields in a *file*. That's why it took so long.
> > >
> > >
> >
> >
> >
> >
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