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XPCE "Arguments are not sufficiently instantiated"
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Stonehead
Dec 11, 2009, 6:56:23 PM12/11/09
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Hello.
I'm trying to use XPCE for GUI to my prolog script and I would like to
store a list from prolog in a variable in xpce. The problem is that some
of the elements in my list are uninstantiated and thus this error is
generated. I have tried several types of variable (chain, object, any)
but all throw the same error.
I'm trying to use XPCE for GUI to my prolog script and I would like to
store a list from prolog in a variable in xpce. The problem is that some
of the elements in my list are uninstantiated and thus this error is
generated. I have tried several types of variable (chain, object, any)
but all throw the same error.
Is there a way to store a prolog list that isn't fully instantiated into
a xpce variable?
Thx =)
Jan Wielemaker
Dec 12, 2009, 4:44:41 AM12/12/09
to
Yip. See user-defined classes using the `type' 'prolog'. I guess that
should be in the user guide. There are also examples in the libraries
and http://hcs.science.uva.nl/projects/SWI-Prolog/articles/wlpe-02.pdf
describes the rationale.
Note however that, except for parameter-passing to prolog-defined
methods, this results in a *copy* and therefore it might have little
use to you.
Cheers --- Jan
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