[commit: base] master: FIX #7263: derive Eq, Show, and Read for GHC.Generics representation types (219ea0e)

[José Pedro Magalhães]

Repository : ssh://darcs.haskell.org//srv/darcs/packages/base

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/219ea0e539aca217fe1819baf02d4cdd1d670f51

>---------------------------------------------------------------

commit 219ea0e539aca217fe1819baf02d4cdd1d670f51
Author: Jose Pedro Magalhaes <jpm at cs.ox.ac.uk>
Date:   Wed Oct 3 09:35:02 2012 +0100

    FIX #7263: derive Eq, Show, and Read for GHC.Generics representation types

>---------------------------------------------------------------

 GHC/Generics.hs |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/GHC/Generics.hs b/GHC/Generics.hs
index fe86600..a858057 100644
--- a/GHC/Generics.hs
+++ b/GHC/Generics.hs
@@ -45,31 +45,38 @@ data V1 p
 
 -- | Unit: used for constructors without arguments
 data U1 p = U1
+  deriving (Eq, Read, Show)
 
 -- | Used for marking occurrences of the parameter
 newtype Par1 p = Par1 { unPar1 :: p }
-
+  deriving (Eq, Read, Show)
 
 -- | Recursive calls of kind * -> *
 newtype Rec1 f p = Rec1 { unRec1 :: f p }
+  deriving (Eq, Read, Show)
 
 -- | Constants, additional parameters and recursion of kind *
 newtype K1 i c p = K1 { unK1 :: c }
+  deriving (Eq, Read, Show)
 
 -- | Meta-information (constructor names, etc.)
 newtype M1 i c f p = M1 { unM1 :: f p }
+  deriving (Eq, Read, Show)
 
 -- | Sums: encode choice between constructors
 infixr 5 :+:
 data (:+:) f g p = L1 (f p) | R1 (g p)
+  deriving (Eq, Read, Show)
 
 -- | Products: encode multiple arguments to constructors
 infixr 6 :*:
 data (:*:) f g p = f p :*: g p
+  deriving (Eq, Read, Show)
 
 -- | Composition of functors
 infixr 7 :.:
 newtype (:.:) f g p = Comp1 { unComp1 :: f (g p) }
+  deriving (Eq, Read, Show)
 
 -- | Tag for K1: recursion (of kind *)
 data R