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Use replacing in diffTerms.

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This commit is contained in:
Rob Rix 2016-08-04 10:32:05 -04:00
parent 18065f5048
commit 3808b89fe4
1 changed files with 1 additions and 1 deletions
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src/Interpreter.hs
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@ -27,7 +27,7 @@ type DiffConstructor leaf annotation = CofreeF (Syntax leaf) (Both annotation) (
-- | Diff two terms, given a function that determines whether two terms can be compared and a cost function.
diffTerms :: (Eq leaf, Hashable leaf, Eq (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) -> Diff leaf (Record fields)
diffTerms construct comparable cost a b = fromMaybe (pure $ Replace a b) $ constructAndRun construct comparable cost a b
diffTerms construct comparable cost a b = fromMaybe (replacing a b) $ constructAndRun construct comparable cost a b
-- | Constructs an algorithm and runs it
constructAndRun :: (Eq leaf, Hashable leaf, Eq (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))