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Add a section header for the instances.

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Rob Rix 2017-05-03 09:35:51 -04:00
parent 14c12b3582
commit ae9fc6ea4f
1 changed files with 3 additions and 0 deletions
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src/Data/Syntax/Assignment.hs
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@ -165,6 +165,9 @@ data AssignmentState grammar = AssignmentState
}
deriving (Eq, Show)
-- Instances
instance Enum symbol => Alternative (Assignment (Node symbol)) where
empty = Empty `Then` return
a <|> b = case (a, b) of