[Ecls-list] LOAD-TIME-VALUE and literal object externalisation.
_deepfire at feelingofgreen.ru
Mon Apr 14 04:35:41 UTC 2008
At Sun, 13 Apr 2008 10:53:57 +0200,
Juan Jose Garcia-Ripoll wrote:
> Hi Samium,
Good day Juan!
> On Fri, Apr 11, 2008 at 12:27 PM, Samium Gromoff
> <_deepfire at feelingofgreen.ru> wrote:
> > So, here's the test case:
> > (eval-when (:compile-toplevel :load-toplevel :execute)
> > (defparameter foo (lambda ())))
> > (load-time-value foo)
> Now, as for your code, beware that LOAD-TIME-VALUE may be evaluated
> _earlier_ than you expect, even before the DEFPARAMETER definition in
> your code. This is not the case in ECL, but the standard I think
> allows that.
Yes, I was half-aware of that, because of the
"...but the order of evaluation with respect to the evaluation of
top level forms in the file is implementation-dependent."
passage in L-T-V description, but I was not sure if it applies to
I think this is one of the places where the CL spec could be improved,
by decreasing the astonishment factor :-)
regards, Samium Gromoff
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