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  • Subject: Re: CF-Spec - another call for opinions
  • From: dhandy@xxxxxxxxxxx (Douglas Handy)
  • Date: Thu, 12 Aug 1999 00:27:13 GMT

Bob,

> I definitely want a vote AGAINST option 4!!!

Hey, Bob, you found something we can agree on regarding CF!  Option 1
would be (IMHO) much preferable than option 4.  I don't like option 3
either, as it could lead to some unnatural future opcodes.

I still like option 2 best, and think that implied EVAL and CALLP can
be unambiguously determined from the context in almost every case.

I think the only ambiguous context would be an implicit CALLP to a
subprocedure with no agruments passed, where the name matched a
current or future opcode with no operands.  (Such as Iter or Leave.)
This is why I suggested appending () to ensure it would continue to
always be recognized as a subprocedure call regardless of future
opcodes.

Note that new opcodes which require operands (i.e., almost every one)
would still not be ambiguous since the presence/abscense of "=" vs
operands vs arguments would allow you to easily determine if you are
dealing with an opcode, target variable, or subprocedure name.

Doug
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