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replace token type synonym with example datatype of kind (*->*)->*->*

This commit is contained in:
Ayman Nadeem 2020-04-27 16:59:59 -04:00
parent 87349a4d55
commit 09dfa147b7

View File

@ -9,8 +9,9 @@ import GHC.Generics (Generic, Generic1)
--
-- Error types are isomorphic to Either.
--
-- For example, consider the following:
-- @
-- type AnonymousPlus = Token "+" 123
-- data If f a = If { ann :: a, condition :: f (Expr f a), consequence :: f (Stmt f a), alternative :: f (Stmt f a) }
-- @
data Err fail succeed = parseL (fail :: String) | parseR (succeed :: Symbol)
deriving (Eq, Foldable, Functor, Generic, Generic1, Ord, Show, Traversable)