Add Data and Typeable instances to HsSyn

[ghc-hetmet.git] / compiler / hsSyn / HsLit.lhs

diff --git a/compiler/hsSyn/HsLit.lhs b/compiler/hsSyn/HsLit.lhs
index 9a0e875..0874dda 100644 (file)
--- a/compiler/hsSyn/HsLit.lhs
+++ b/compiler/hsSyn/HsLit.lhs
@@ -5,6 +5,8 @@
 \section[HsLit]{Abstract syntax: source-language literals}
 
 \begin{code}
+{-# LANGUAGE DeriveDataTypeable #-}
+
 module HsLit where
 
 #include "HsVersions.h"
@@ -14,6 +16,8 @@ import HsTypes (PostTcType)
 import Type    ( Type )
 import Outputable
 import FastString
+
+import Data.Data
 \end{code}
 
 
@@ -40,6 +44,7 @@ data HsLit
                                        --      (overloaded literals are done with HsOverLit)
   | HsFloatPrim            Rational            -- Unboxed Float
   | HsDoublePrim    Rational           -- Unboxed Double
+  deriving (Data, Typeable)
 
 instance Eq HsLit where
   (HsChar x1)      == (HsChar x2)       = x1==x2
@@ -62,11 +67,13 @@ data HsOverLit id   -- An overloaded literal
                                        -- False <=> standard syntax
        ol_witness :: SyntaxExpr id,    -- Note [Overloaded literal witnesses]
        ol_type :: PostTcType }
+  deriving (Data, Typeable)
 
 data OverLitVal
   = HsIntegral   !Integer      -- Integer-looking literals;
   | HsFractional !Rational     -- Frac-looking literals
   | HsIsString   !FastString   -- String-looking literals
+  deriving (Data, Typeable)
 
 overLitType :: HsOverLit a -> Type
 overLitType = ol_type