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constraint bug fix

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aarne
2004-10-26 11:53:22 +00:00
parent 2b9e31455d
commit 8be82a3936
2 changed files with 4 additions and 4 deletions
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6
src/GF/Grammar/TypeCheck.hs
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@@ -75,9 +75,9 @@ computeVal gr v = case v of
splitConstraints :: Constraints -> (Constraints,MetaSubst)
splitConstraints cs = csmsu where
csmsu = (nub [(a,b) | (a,b) <- csf,a /= b],msf)
csmsu0 = unif (csf,msf) -- alternative: filter first
(csf,msf) = foldr mkOne ([],[]) cs
csmsu = (nub [(a,b) | (a,b) <- csf1,a /= b],msf1)
(csf1,msf1) = unif (csf,msf) -- alternative: filter first
(csf,msf) = foldr mkOne ([],[]) cs
csmsf = foldr mkOne ([],msu) csu
(csu,msu) = unif (cs,[]) -- alternative: unify first