forked from GitHub/gf-core
Introduced an intermediate representation for the generated Haskell expressions. This allows pretty printing concerns to be separated from conversion concerns, and makes it easy to apply some simplifying rewrites to the generated expressions, e.g. [x] ++ [y] ==> [x,y] pure f <*> x ==> f <$> x f <$> pure x ==> pure (f x) join (pure x) ==> x