cl-serializer-devel

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February 2010

2 discussions

[cl-serializer-devel] Two issues, one resolved, for CL-SERIALIZER in Allegro 8.1
by Andrew Philpot 24 Nov '10

24 Nov '10

#1. (SETF LOGBITP) is not defined in ACL 8.1 (nor in CLISP), and as far as I can tell isn't part of the standard nor can be portably defined. I'm changing (SETF (LOGBITP x y) z) to (SETF y (DPB z (BYTE 1 x) y) (2 places). Maybe (SETF LDB) is better? #2. It seems that cl-serializer assumes that objects of type BASE-CHAR must be 8-bit characters, and thus can be encoded in a single byte. But this isn't the case in Allegro, where (TYPEP (CODE-CHAR 257) 'BASE-CHAR) is true. I didn't find a good way to get into the type detection logic to cause multi-byte characters to do the right thing. Suggestions? Andrew

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[cl-serializer-devel] (no subject)
by Andrew Philpot 24 Nov '10

24 Nov '10

[also sent to pc(a)p-cos.net] CL-SERIALIZER calls CLOSER-MOP:SLOT-DEFINITION-ALLOCATION on a class object that might be a STANDARD-CLASS and might not (e.g. a STRUCTURE-CLASS). In SBCL, both of these are defined, but in Allegro 8.1, the only method on this generic function is on STANDARD-CLASS. Does it make sense to (1) extend the GF for the Allegro case in CLOSER-MOP to return NIL or some other sensible value (2) embed an appropriate check in the CL-SERIALIZER client code or (3) do you have another suggestion? Thanks, Andrew Philpot USC ISI

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