use template haskell aeson, not generics

this has been bothering me for MONTHS, and it compiles faster now. also fixed some warnings

1 files changed, 15 insertions, 0 deletions

diff --git a/tiled/Data/Tiled/TH.hs b/tiled/Data/Tiled/TH.hs
new file mode 100644
index 0000000..e0ad0e8
--- /dev/null
+++ b/tiled/Data/Tiled/TH.hs
@@ -0,0 +1,15 @@
+module Data.Tiled.TH where
+
+import Universum
+
+import qualified Data.Aeson.TH    as TH
+import           Data.Char        (toLower)
+
+aesonOptions :: Int -> TH.Options
+aesonOptions l = TH.defaultOptions
+  { TH.omitNothingFields = True
+  , TH.rejectUnknownFields = True
+  -- can't be bothered to do a nicer prefix strip
+  , TH.fieldLabelModifier = drop l . map toLower
+  , TH.sumEncoding = TH.UntaggedValue
+  }