[parenscript-devel] Parenscript 2.3 compilation problem

[Vladimir Sedach]

Thanks for the bug report! I've pushed a fix for the erroneous
defparameter to the repository.

I haven't tried Parenscript in ABCL yet, although it is something I
meant to do eventually.

Vladimir

On Sun, Aug 21, 2011 at 4:50 AM, Erik Huelsmann <ehuels at gmail.com> wrote:
> Hi all,
> After a night's sleep, I found the problem in ABCL this morning: the LET
> operator expression definer has a function called VAR, which is also a
> macro. This confuses ABCL. We'll fix that. Parenscript will compile nicely
> after that.
> The point that the VAR macro may expand to non-conforming code remains,
> however.
> Bye,
>
> Erik.
>
> On Sat, Aug 20, 2011 at 10:00 PM, Erik Huelsmann <ehuels at gmail.com> wrote:
>>
>> Hi,
>> This week, Alessio Stalla and I are trying to get Parenscript to compile
>> on ABCL. We're using Parenscript 2.3 as distributed with Quicklisp.
>> Parenscript 2.2 worked fine, after fixing a potential readtables issue.
>> However, Parenscript 2.3 fails compilation during the compilation of the
>> (DEFINE-EXPRESSION-OPERATOR LET # ...) toplevel form.
>> The problem is that it generates an expression (VAR X), which is then
>> expanded to (DEFPARAMETER X). However, that's non-conforming because the
>> initial value is required according to the CLHS. Looking at the definition
>> of the VAR macro, I see the problem:
>> (defmacro VAR (name &optional value docstring)
>>   `(defparameter ,name ,@(when value (list value)) ...))
>> can indeed lead to a (DEFPAMETER X)
>>
>> I haven't found out if/why this isn't a problem on Parenscript 2.2 or why
>> Parenscript 2.3 would cleanly compile on SBCL, because - like ABCL - it
>> rejects forms like that.
>>
>> If it is ABCL that's broken here, could you help us fix it? If not, could
>> you fix parenscript to work on ABCL?
>> I'm eager to learn about your analysis of the situation. If you need help
>> on settin up ABCL, I'll gladly provide it.
>>
>> Bye,
>> Erik
>
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