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Derive NFData instance for GenHaxl

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Summary: Having an NFData instance allows forcing calls that return a Haxl computation to run.

Reviewed By: xich

Differential Revision: D3906781

fbshipit-source-id: e49448152695383031af6d315a20dbcd1c10720c
This commit is contained in:
Jonathan Coens 2016-09-22 11:03:58 -07:00 committed by Facebook Github Bot 6
parent 528bba5565
commit 78052b9625
1 changed files with 2 additions and 0 deletions
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2
Haxl/Core/Monad.hs
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@ -11,6 +11,7 @@
{-# LANGUAGE ExistentialQuantification #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE MagicHash #-}
{-# LANGUAGE MultiWayIf #-}
@ -182,6 +183,7 @@ emptyEnv = initEnv stateEmpty
--
newtype GenHaxl u a = GenHaxl
{ unHaxl :: Env u -> IORef (RequestStore u) -> IO (Result u a) }
deriving NFData
-- | The result of a computation is either 'Done' with a value, 'Throw'
-- with an exception, or 'Blocked' on the result of a data fetch with