Hello,
I just checked out the latest Hat sources from the CVS. After
successful compilation and installation, I think I have a bug
at hand, in the treatment of left section expressions, e.g. (2+).
A very simple program that generates the bug (let's call the
file hattest.hs):
generator = ("Hello " ++) . ("world!" ++)
main = putStrLn (generator "")
Here's what I get:
formal:~/foo> hmake -hat hattest
hat-trans hattest.hs
Fail: mergePos 1:23-1:24 1:14-1:21
As I understand it, (1:23-1:24) is the first "++" and 1:14-1:21
is the string "Hello ". The left section is (correctly) converted
to the application:
(++) "Hello "
but then possitions of the two subexpressions come the wrong way
and mergePos complains.
I know it can be fixed by writing the expression above instead of
the left section, but (as this occurs in all Show instances several
times) I think it is not an acceptable solution.
Am I missing something? If not, could somebody fix it?
Thank you in advance,
Nikos.
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Nikolaos S. Papaspyrou | Tel: +30-210-7723393
National Technical University of Athens | Home: +30-210-7524801
School of Electrical & Computer Engineering | Fax: +30-210-7722519
Software Engineering Laboratory |-=-=-=-=-=-=-=-=-=-=-=-=-=-=
15780 Zografou, Athens, Greece | Happiness is not a state
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Email: nickie(a)softlab.ntua.gr | of travelling.
URL: http://www.softlab.ntua.gr/~nickie/ | --- Margaret Lee Runbeck
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