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-rw-r--r--src/Hakyll/Core/Writable/WritableTuple.hs37
1 files changed, 0 insertions, 37 deletions
diff --git a/src/Hakyll/Core/Writable/WritableTuple.hs b/src/Hakyll/Core/Writable/WritableTuple.hs
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--- a/src/Hakyll/Core/Writable/WritableTuple.hs
+++ /dev/null
@@ -1,37 +0,0 @@
--- | This module exposes a writable type 'WritableTuple' which is a simple
--- newtype wrapper around a tuple.
---
--- The idea is that, given a tuple @(a, b)@, @a@ is the value you actually want
--- to save to the disk, and @b@ is some additional info that you /don't/ want to
--- save, but that you need later, for example in a 'require' clause.
---
-{-# LANGUAGE GeneralizedNewtypeDeriving, DeriveDataTypeable #-}
-module Hakyll.Core.Writable.WritableTuple
- ( WritableTuple (..)
- , writableTupleFst
- , writableTupleSnd
- , writableTupleCompiler
- ) where
-
-import Control.Arrow (arr)
-
-import Data.Typeable (Typeable)
-import Data.Binary (Binary)
-
-import Hakyll.Core.Writable
-import Hakyll.Core.Compiler
-
-newtype WritableTuple a b = WritableTuple {unWritableTuple :: (a, b)}
- deriving (Show, Eq, Ord, Binary, Typeable)
-
-instance Writable a => Writable (WritableTuple a b) where
- write dst (WritableTuple (x, _)) = write dst x
-
-writableTupleFst :: WritableTuple a b -> a
-writableTupleFst = fst . unWritableTuple
-
-writableTupleSnd :: WritableTuple a b -> b
-writableTupleSnd = snd . unWritableTuple
-
-writableTupleCompiler :: Compiler (a, b) (WritableTuple a b)
-writableTupleCompiler = arr WritableTuple