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-rw-r--r--lib/Hakyll/Check.hs13
-rw-r--r--lib/Hakyll/Core/Compiler/Internal.hs14
-rw-r--r--lib/Hakyll/Core/Identifier/Pattern.hs13
-rw-r--r--lib/Hakyll/Core/Routes.hs17
-rw-r--r--lib/Hakyll/Core/Rules/Internal.hs14
-rw-r--r--lib/Hakyll/Web/Template/Context.hs12
6 files changed, 83 insertions, 0 deletions
diff --git a/lib/Hakyll/Check.hs b/lib/Hakyll/Check.hs
index f001cbe..05ad1fd 100644
--- a/lib/Hakyll/Check.hs
+++ b/lib/Hakyll/Check.hs
@@ -19,6 +19,9 @@ import Control.Monad.Trans (liftIO)
import Control.Monad.Trans.Resource (runResourceT)
import Data.List (isPrefixOf)
import qualified Data.Map.Lazy as Map
+#if MIN_VERSION_base(4,9,0)
+import Data.Semigroup (Semigroup (..))
+#endif
import Network.URI (unEscapeString)
import System.Directory (doesDirectoryExist,
doesFileExist)
@@ -85,10 +88,20 @@ data CheckerWrite = CheckerWrite
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+instance Semigroup CheckerWrite where
+ (<>) (CheckerWrite f1 o1) (CheckerWrite f2 o2) =
+ CheckerWrite (f1 + f2) (o1 + o2)
+
+instance Monoid CheckerWrite where
+ mempty = CheckerWrite 0 0
+ mappend = (<>)
+#else
instance Monoid CheckerWrite where
mempty = CheckerWrite 0 0
mappend (CheckerWrite f1 o1) (CheckerWrite f2 o2) =
CheckerWrite (f1 + f2) (o1 + o2)
+#endif
--------------------------------------------------------------------------------
diff --git a/lib/Hakyll/Core/Compiler/Internal.hs b/lib/Hakyll/Core/Compiler/Internal.hs
index 7b1df83..5b6d1aa 100644
--- a/lib/Hakyll/Core/Compiler/Internal.hs
+++ b/lib/Hakyll/Core/Compiler/Internal.hs
@@ -1,5 +1,6 @@
--------------------------------------------------------------------------------
-- | Internally used compiler module
+{-# LANGUAGE CPP #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
@@ -32,6 +33,9 @@ import Control.Applicative (Alternative (..))
import Control.Exception (SomeException, handle)
import Control.Monad (forM_)
import Control.Monad.Except (MonadError (..))
+#if MIN_VERSION_base(4,9,0)
+import Data.Semigroup (Semigroup (..))
+#endif
import Data.Set (Set)
import qualified Data.Set as S
@@ -83,10 +87,20 @@ data CompilerWrite = CompilerWrite
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+instance Semigroup CompilerWrite where
+ (<>) (CompilerWrite d1 h1) (CompilerWrite d2 h2) =
+ CompilerWrite (d1 ++ d2) (h1 + h2)
+
+instance Monoid CompilerWrite where
+ mempty = CompilerWrite [] 0
+ mappend = (<>)
+#else
instance Monoid CompilerWrite where
mempty = CompilerWrite [] 0
mappend (CompilerWrite d1 h1) (CompilerWrite d2 h2) =
CompilerWrite (d1 ++ d2) (h1 + h2)
+#endif
--------------------------------------------------------------------------------
diff --git a/lib/Hakyll/Core/Identifier/Pattern.hs b/lib/Hakyll/Core/Identifier/Pattern.hs
index 83d5adc..a36e464 100644
--- a/lib/Hakyll/Core/Identifier/Pattern.hs
+++ b/lib/Hakyll/Core/Identifier/Pattern.hs
@@ -28,6 +28,7 @@
--
-- The 'capture' function allows the user to get access to the elements captured
-- by the capture elements in a glob or regex pattern.
+{-# LANGUAGE CPP #-}
module Hakyll.Core.Identifier.Pattern
( -- * The pattern type
Pattern
@@ -62,6 +63,9 @@ import Control.Monad (msum)
import Data.Binary (Binary (..), getWord8, putWord8)
import Data.List (inits, isPrefixOf, tails)
import Data.Maybe (isJust)
+#if MIN_VERSION_base(4,9,0)
+import Data.Semigroup (Semigroup (..))
+#endif
import Data.Set (Set)
import qualified Data.Set as S
@@ -136,9 +140,18 @@ instance IsString Pattern where
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+instance Semigroup Pattern where
+ (<>) = (.&&.)
+
+instance Monoid Pattern where
+ mempty = Everything
+ mappend = (<>)
+#else
instance Monoid Pattern where
mempty = Everything
mappend = (.&&.)
+#endif
--------------------------------------------------------------------------------
diff --git a/lib/Hakyll/Core/Routes.hs b/lib/Hakyll/Core/Routes.hs
index 513725f..06bf633 100644
--- a/lib/Hakyll/Core/Routes.hs
+++ b/lib/Hakyll/Core/Routes.hs
@@ -25,6 +25,7 @@
-- not appear in your site directory.
--
-- * If an item matches multiple routes, the first rule will be chosen.
+{-# LANGUAGE CPP #-}
{-# LANGUAGE Rank2Types #-}
module Hakyll.Core.Routes
( UsedMetadata
@@ -42,6 +43,9 @@ module Hakyll.Core.Routes
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+import Data.Semigroup (Semigroup (..))
+#endif
import System.FilePath (replaceExtension)
@@ -74,6 +78,18 @@ newtype Routes = Routes
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+instance Semigroup Routes where
+ (<>) (Routes f) (Routes g) = Routes $ \p id' -> do
+ (mfp, um) <- f p id'
+ case mfp of
+ Nothing -> g p id'
+ Just _ -> return (mfp, um)
+
+instance Monoid Routes where
+ mempty = Routes $ \_ _ -> return (Nothing, False)
+ mappend = (<>)
+#else
instance Monoid Routes where
mempty = Routes $ \_ _ -> return (Nothing, False)
mappend (Routes f) (Routes g) = Routes $ \p id' -> do
@@ -81,6 +97,7 @@ instance Monoid Routes where
case mfp of
Nothing -> g p id'
Just _ -> return (mfp, um)
+#endif
--------------------------------------------------------------------------------
diff --git a/lib/Hakyll/Core/Rules/Internal.hs b/lib/Hakyll/Core/Rules/Internal.hs
index 0641dcf..647af74 100644
--- a/lib/Hakyll/Core/Rules/Internal.hs
+++ b/lib/Hakyll/Core/Rules/Internal.hs
@@ -1,4 +1,5 @@
--------------------------------------------------------------------------------
+{-# LANGUAGE CPP #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE Rank2Types #-}
module Hakyll.Core.Rules.Internal
@@ -16,6 +17,9 @@ import Control.Monad.Reader (ask)
import Control.Monad.RWS (RWST, runRWST)
import Control.Monad.Trans (liftIO)
import qualified Data.Map as M
+#if MIN_VERSION_base(4,9,0)
+import Data.Semigroup (Semigroup (..))
+#endif
import Data.Set (Set)
@@ -52,10 +56,20 @@ data RuleSet = RuleSet
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+instance Semigroup RuleSet where
+ (<>) (RuleSet r1 c1 s1 p1) (RuleSet r2 c2 s2 p2) =
+ RuleSet (mappend r1 r2) (mappend c1 c2) (mappend s1 s2) (p1 .||. p2)
+
+instance Monoid RuleSet where
+ mempty = RuleSet mempty mempty mempty mempty
+ mappend = (<>)
+#else
instance Monoid RuleSet where
mempty = RuleSet mempty mempty mempty mempty
mappend (RuleSet r1 c1 s1 p1) (RuleSet r2 c2 s2 p2) =
RuleSet (mappend r1 r2) (mappend c1 c2) (mappend s1 s2) (p1 .||. p2)
+#endif
--------------------------------------------------------------------------------
diff --git a/lib/Hakyll/Web/Template/Context.hs b/lib/Hakyll/Web/Template/Context.hs
index b6c7994..d570506 100644
--- a/lib/Hakyll/Web/Template/Context.hs
+++ b/lib/Hakyll/Web/Template/Context.hs
@@ -35,6 +35,9 @@ module Hakyll.Web.Template.Context
import Control.Applicative (Alternative (..))
import Control.Monad (msum)
import Data.List (intercalate)
+#if MIN_VERSION_base(4,9,0)
+import Data.Semigroup (Semigroup (..))
+#endif
import Data.Time.Clock (UTCTime (..))
import Data.Time.Format (formatTime)
import qualified Data.Time.Format as TF
@@ -78,9 +81,18 @@ newtype Context a = Context
--------------------------------------------------------------------------------
+#if MIN_VERSION_base(4,9,0)
+instance Semigroup (Context a) where
+ (<>) (Context f) (Context g) = Context $ \k a i -> f k a i <|> g k a i
+
+instance Monoid (Context a) where
+ mempty = missingField
+ mappend = (<>)
+#else
instance Monoid (Context a) where
mempty = missingField
mappend (Context f) (Context g) = Context $ \k a i -> f k a i <|> g k a i
+#endif
--------------------------------------------------------------------------------
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