Add support for GHC 7.10 & base-4.8

This add missing `Functor` & `Applicative` instances for `P` and
`Lex` (and `DocM`) monads needed for AMP compatibility.

The package version is minor-bumped to v1.0.2.0 since new instances were
added to the exposed API.

Moreover, a Hackage-compliant changelog file is added as
extra-source-files.

Language/Haskell/ParseMonad.hs

@@ -27,7 +27,9 @@ module Language.Haskell.ParseMonad(
 
 import Language.Haskell.Syntax(SrcLoc(..))
 import Control.Applicative
+import Control.Monad (ap, liftM)
 import Data.Monoid
+import Prelude
 
 -- | The result of a parse.
 data ParseResult a
@@ -111,6 +113,13 @@ runParserWithMode mode (P m) s = case m s 0 1 start [] mode of
 runParser :: P a -> String -> ParseResult a
 runParser = runParserWithMode defaultParseMode
 
+instance Functor P where
+        fmap = liftM
+
+instance Applicative P where
+        pure  = return
+        (<*>) = ap
+
 instance Monad P where
         return a = P $ \_i _x _y _l s _m -> Ok s a
         P m >>= k = P $ \i x y l s mode ->
@@ -156,6 +165,13 @@ popContext = P $ \_i _x _y _l stk _m ->
 
 newtype Lex r a = Lex { runL :: (a -> P r) -> P r }
 
+instance Functor (Lex r) where
+        fmap = liftM
+
+instance Applicative (Lex r) where
+        pure  = return
+        (<*>) = ap
+
 instance Monad (Lex r) where
         return a = Lex $ \k -> k a
         Lex v >>= f = Lex $ \k -> v (\a -> runL (f a) k)

Language/Haskell/Pretty.hs

@@ -24,6 +24,9 @@ module Language.Haskell.Pretty (
 
 import Language.Haskell.Syntax
 
+import Control.Applicative (Applicative(..))
+import Control.Monad (ap)
+
 import qualified Text.PrettyPrint as P
 
 infixl 5 $$$
@@ -91,6 +94,10 @@ newtype DocM s a = DocM (s -> a)
 instance Functor (DocM s) where
          fmap f xs = do x <- xs; return (f x)
 
+instance Applicative (DocM s) where
+        pure = return
+        (<*>) = ap
+
 instance Monad (DocM s) where
         (>>=) = thenDocM
         (>>) = then_DocM

changelog.md

@@ -0,0 +1,6 @@
+# 1.0.2.0
+
+ - Add support for GHC 7.10 & base-4.8)
+
+ - Add missing `Functor` & `Applicative` instances for `P` and `Lex`
+   monads needed for AMP compatibility.

haskell-src.cabal

@@ -1,10 +1,12 @@
 name:           haskell-src
-version:        1.0.1.6
+-- don't forget to update the changelog.md!
+version:        1.0.2.0
 license:        BSD3
 license-file:   LICENSE
 author:         Simon Marlow, Sven Panne and Noel Winstanley
 -- Maintained through https://github.com/haskell-pkg-janitors. Join us!
-maintainer:         Conrad Parker <[email protected]>
+maintainer:     Herbert Valerio Riedel <[email protected]>
+bug-reports:    https://github.com/haskell-pkg-janitors/haskell-src/issues
 category:       Language
 synopsis:       Support for manipulating Haskell source code
 description:
@@ -16,11 +18,13 @@ description:
 build-type:     Simple
 cabal-version:  >=1.6
 
+extra-source-files: changelog.md
+
 flag split-base
 
 source-repository head
     type:     git
-    location: git://github.com/haskell-pkg-janitors/haskell-src.git
+    location: https://github.com/haskell-pkg-janitors/haskell-src.git
 
 library
   exposed-modules:
@@ -30,10 +34,14 @@ library
         Language.Haskell.Pretty,
         Language.Haskell.Syntax,
         Language.Haskell.ParseUtils
+
   if flag(split-base)
     build-depends:      base >= 4 && < 5, syb, pretty, array
   else
     build-depends:      base < 3
+
+  build-tools: happy
+
   extensions:   CPP
   nhc98-options:        -K11M
   ghc-options:          -Wall -O2