diff options
author | Ben Sima <ben@bsima.me> | 2019-11-02 15:33:13 -0700 |
---|---|---|
committer | Ben Sima <ben@bsima.me> | 2019-11-02 15:33:13 -0700 |
commit | 9d114cfc773171b0a95bd4d2c39f1bb0eb783c8d (patch) | |
tree | 20766a760ed0141cf39153565e8552f6739c632d /Com/Simatime/Network.hs | |
parent | d2a37f5de160160eadbacd7b8dc2567f78a0543d (diff) |
rename everything back to caps to appease ghc
Diffstat (limited to 'Com/Simatime/Network.hs')
-rw-r--r-- | Com/Simatime/Network.hs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/Com/Simatime/Network.hs b/Com/Simatime/Network.hs new file mode 100644 index 0000000..e47e891 --- /dev/null +++ b/Com/Simatime/Network.hs @@ -0,0 +1,31 @@ +-- | A port of Kris Jenkins' RemoteData Elm module +-- <https://github.com/krisajenkins/remotedata>. +-- +module Com.Simatime.Network where + +data RemoteData a b + = NotAsked + | Loading + | Failure a + | Success b + deriving (Eq, Show) + +-- TODO figure out Http.Error +-- type WebData a = RemoteData Http.Error a + +instance Functor (RemoteData a) where + fmap _ NotAsked = NotAsked + fmap _ Loading = Loading + fmap _ (Failure a) = Failure a + fmap f (Success a) = Success (f a) + +instance Applicative (RemoteData e) where + pure = Success + NotAsked <*> _ = NotAsked + Loading <*> _ = Loading + Failure a <*> _ = Failure a + Success a <*> b = fmap a b + +fromEither :: Either a b -> RemoteData a b +fromEither (Left a) = Failure a +fromEither (Right a) = Success a |