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Re: issue CONSTANT-CIRCULAR-COMPILATION, version 4
- To: David N Gray <Gray%dsg.csc.ti.com@NSS.Cs.Ucl.AC.UK>, Cris Perdue <email@example.com>
- Subject: Re: issue CONSTANT-CIRCULAR-COMPILATION, version 4
- From: Jeff Dalton <jeff%aiai.edinburgh.ac.uk@NSS.Cs.Ucl.AC.UK>
- Date: Tue, 24 Jan 89 20:46:24 GMT
- Cc: sandra <@cs.utah.edu:sandra@defun>, firstname.lastname@example.org
Regardless of the disposition of COMPILER-LET, I think the proposal had
better also say that *dump-circle* is rebound to its current value at least
during COMPILE-FILE. That way a source file can (eval-when (compile)
(setq *dump-circle* t)) if it contains circular structure.
*Dump-circle* is beginning to bother me. Because users can write
#n= and #n# in source code, they can specify constants that contain
sharing and circularities; and so those constants should be dumped.
I do not think it's reasonable to make the language weaker than the
source notation; and so I don't think *dump-circle* should exist
at all: it should always be as if it were true.