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Add a Switch case to zipUnwrap

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joshvera 2016-06-16 15:57:27 -07:00
parent 0c1d749f32
commit af8e7a4d81
1 changed files with 3 additions and 0 deletions
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src/Term.hs
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@ -33,6 +33,9 @@ zipTerms t1 t2 = annotate (zipUnwrap a b)
zipUnwrap (Case eA' bodyA') (Case eB' bodyB') = case (zipTerms eA' eB', zipTerms bodyA' bodyB') of
(Just id', Just body') -> Just $ Case id' body'
_ -> Nothing
zipUnwrap (Switch a' as') (Switch b' bs') = case (zipTerms a' b') of
(Just expr') -> Just $ Switch expr' (catMaybes $ zipWith zipTerms as' bs')
_ -> Nothing
zipUnwrap (Fixed a') (Fixed b') = Just . Fixed . catMaybes $ zipWith zipTerms a' b'
zipUnwrap (Keyed a') (Keyed b') | keys a' == keys b' = Just . Keyed . fromList . catMaybes $ zipUnwrapMaps a' b' <$> keys a'
zipUnwrap _ _ = Nothing