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fix in etaexpand optimization

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aarne
2007-01-11 11:42:39 +00:00
parent 46994dec58
commit 6c9ddcda8b
1 changed files with 5 additions and 1 deletions
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6
src/GF/Compile/Optimize.hs
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@@ -167,8 +167,12 @@ partEval opts gr (context, val) trm = errIn ("parteval" +++ prt_ trm) $ do
etaExpand su t = do
t' <- comp su t
case t' of
R _ -> comp su t' --- return t' wo noexpand...
R _ | rightType t' -> comp su t' --- return t' wo noexpand...
_ -> recordExpand val t' >>= comp su
-- don't eta expand records of right length (correct by type checking)
rightType t = case (t,val) of
(R rs, RecType ts) -> length rs == length ts
_ -> False
outCase subst t = do
pts <- getParams context