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Define a copy helper.

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Rob Rix 2017-09-09 11:54:29 +01:00
parent 69cba8430f
commit 30fe4d520b
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src/Diff.hs
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@ -66,6 +66,8 @@ deleting :: Term syntax ann -> Diff syntax ann
deleting = Diff . Patch . Delete
copy :: Both ann -> syntax (Diff syntax ann) -> Diff syntax ann
copy = (Diff .) . Copy
instance Apply1 Pretty1 fs => Pretty1 (Diff (Union fs)) where