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Define a ToJSONFields instance for Terms.

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This commit is contained in:
Rob Rix 2017-04-27 18:05:08 -04:00
parent 5afd5b8fa6
commit 43a5580bf5
1 changed files with 4 additions and 1 deletions
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src/Renderer/JSON.hs
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@ -1,5 +1,5 @@
{-# LANGUAGE OverloadedStrings, TypeSynonymInstances, MultiParamTypeClasses #-}
{-# LANGUAGE DataKinds, GADTs, GeneralizedNewtypeDeriving, ScopedTypeVariables, TypeFamilies, TypeOperators #-}
{-# LANGUAGE DataKinds, GADTs, GeneralizedNewtypeDeriving, ScopedTypeVariables, TypeFamilies, TypeOperators, UndecidableInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Renderer.JSON
( json
@ -99,6 +99,9 @@ instance ToJSONFields Category where
instance ToJSONFields a => ToJSONFields (Maybe a) where
toJSONFields = maybe [] toJSONFields
instance (ToJSONFields a, ToJSONFields (f (Term f a))) => ToJSONFields (Term f a) where
toJSONFields term = let a :< f = runCofree term in toJSONFields a <> toJSONFields f
lineFields :: (ToJSON leaf, ToJSON (Record fields), HasField fields Category, HasField fields Range, KeyValue kv) =>
Int ->