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Rob Rix 2016-07-08 12:17:38 -04:00
parent 51d8fcd99a
commit 1bf9d63acf
1 changed files with 1 additions and 1 deletions
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src/Interpreter.hs
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@ -36,7 +36,7 @@ diffTerms construct comparable cost a b = fromMaybe (pure $ Replace a b) $ const
constructAndRun :: (Eq leaf, Hashable leaf, Ord (Record fields), HasField fields Category) => DiffConstructor leaf (Record fields) -> Comparable leaf (Record fields) -> SES.Cost (Diff leaf (Record fields)) -> Term leaf (Record fields) -> Term leaf (Record fields) -> Maybe (Diff leaf (Record fields)) constructAndRun :: (Eq leaf, Hashable leaf, Ord (Record fields), HasField fields Category) => DiffConstructor leaf (Record fields) -> Comparable leaf (Record fields) -> SES.Cost (Diff leaf (Record fields)) -> Term leaf (Record fields) -> Term leaf (Record fields) -> Maybe (Diff leaf (Record fields))
constructAndRun construct comparable cost t1 t2 constructAndRun construct comparable cost t1 t2
| not $ comparable t1 t2 = Nothing | not $ comparable t1 t2 = Nothing
| (() <$ t2) == (() <$ t2) = hylo construct runCofree <$> zipTerms t1 t2 | (() <$ t1) == (() <$ t2) = hylo construct runCofree <$> zipTerms t1 t2
| otherwise = | otherwise =
run construct comparable cost $ algorithm a b where run construct comparable cost $ algorithm a b where
algorithm (Indexed a') (Indexed b') = wrap $! ByIndex a' b' (annotate . Indexed) algorithm (Indexed a') (Indexed b') = wrap $! ByIndex a' b' (annotate . Indexed)