X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=include%2FTypeable.h;h=e9a6c7ac1cf38bc32bf22c5ddb6dc81ad18b0c1c;hb=f2e36773ae93fa526cc05981e8f928f14bf612c8;hp=5486e1e4b109632bbb302b79b05625dd350b234d;hpb=acd78d6dbda0108ffa899cb585114a21c5ed7499;p=ghc-base.git

diff --git a/include/Typeable.h b/include/Typeable.h
index 5486e1e..e9a6c7a 100644
--- a/include/Typeable.h
+++ b/include/Typeable.h
@@ -1,25 +1,149 @@
-/* ----------------------------------------------------------------------------
- * Macros to help make Typeable instances.
- * -------------------------------------------------------------------------- */
+{- --------------------------------------------------------------------------
+// Macros to help make Typeable instances.
+//
+// INSTANCE_TYPEABLEn(tc,tcname,"tc") defines
+//
+//	instance Typeable/n/ tc
+//	instance Typeable a => Typeable/n-1/ (tc a)
+//	instance (Typeable a, Typeable b) => Typeable/n-2/ (tc a b)
+//	...
+//	instance (Typeable a1, ..., Typeable an) => Typeable (tc a1 ... an)
+// --------------------------------------------------------------------------
+-}
+
+#ifndef TYPEABLE_H
+#define TYPEABLE_H
 
 #define INSTANCE_TYPEABLE0(tycon,tcname,str) \
+tcname :: TyCon; \
 tcname = mkTyCon str; \
-instance Typeable tycon where { typeOf _ = mkAppTy tcname [] }
+instance Typeable tycon where { typeOf _ = mkTyConApp tcname [] }
+
+#ifdef __GLASGOW_HASKELL__
+
+--  // For GHC, the extra instances follow from general instance declarations
+--  // defined in Data.Typeable.
 
 #define INSTANCE_TYPEABLE1(tycon,tcname,str) \
+tcname :: TyCon; \
 tcname = mkTyCon str; \
-instance Typeable a => Typeable (tycon a) where { \
-  typeOf x = mkAppTy tcname [typeOf ((undefined :: tycon a -> a) x) ] }
+instance Typeable1 tycon where { typeOf1 _ = mkTyConApp tcname [] }
 
 #define INSTANCE_TYPEABLE2(tycon,tcname,str) \
+tcname :: TyCon; \
+tcname = mkTyCon str; \
+instance Typeable2 tycon where { typeOf2 _ = mkTyConApp tcname [] }
+
+#define INSTANCE_TYPEABLE3(tycon,tcname,str) \
+tcname :: TyCon; \
+tcname = mkTyCon str; \
+instance Typeable3 tycon where { typeOf3 _ = mkTyConApp tcname [] }
+
+#define INSTANCE_TYPEABLE4(tycon,tcname,str) \
+tcname :: TyCon; \
 tcname = mkTyCon str; \
+instance Typeable4 tycon where { typeOf4 _ = mkTyConApp tcname [] }
+
+#define INSTANCE_TYPEABLE5(tycon,tcname,str) \
+tcname :: TyCon; \
+tcname = mkTyCon str; \
+instance Typeable5 tycon where { typeOf5 _ = mkTyConApp tcname [] }
+
+#define INSTANCE_TYPEABLE6(tycon,tcname,str) \
+tcname :: TyCon; \
+tcname = mkTyCon str; \
+instance Typeable6 tycon where { typeOf6 _ = mkTyConApp tcname [] }
+
+#define INSTANCE_TYPEABLE7(tycon,tcname,str) \
+tcname :: TyCon; \
+tcname = mkTyCon str; \
+instance Typeable7 tycon where { typeOf7 _ = mkTyConApp tcname [] }
+
+#else /* !__GLASGOW_HASKELL__ */
+
+#define INSTANCE_TYPEABLE1(tycon,tcname,str) \
+tcname = mkTyCon str; \
+instance Typeable1 tycon where { typeOf1 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable (tycon a) where { typeOf = typeOfDefault }
+
+#define INSTANCE_TYPEABLE2(tycon,tcname,str) \
+tcname = mkTyCon str; \
+instance Typeable2 tycon where { typeOf2 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable1 (tycon a) where { \
+  typeOf1 = typeOf1Default }; \
 instance (Typeable a, Typeable b) => Typeable (tycon a b) where { \
-  typeOf x = mkAppTy tcname [typeOf ((undefined :: tycon a b -> a) x), \
-			     typeOf ((undefined :: tycon a b -> b) x)] }
+  typeOf = typeOfDefault }
 
 #define INSTANCE_TYPEABLE3(tycon,tcname,str) \
 tcname = mkTyCon str; \
-instance (Typeable a, Typeable b, Typeable c) => Typeable (tycon a b c) where {\
-  typeOf a = mkAppTy tcname [typeOf ((undefined :: tycon a b c -> a) a), \
-			     typeOf ((undefined :: tycon a b c -> b) a), \
-			     typeOf ((undefined :: tycon a b c -> c) a)] }
+instance Typeable3 tycon where { typeOf3 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable2 (tycon a) where { \
+  typeOf2 = typeOf2Default }; \
+instance (Typeable a, Typeable b) => Typeable1 (tycon a b) where { \
+  typeOf1 = typeOf1Default }; \
+instance (Typeable a, Typeable b, Typeable c) => Typeable (tycon a b c) where { \
+  typeOf = typeOfDefault }
+
+#define INSTANCE_TYPEABLE4(tycon,tcname,str) \
+tcname = mkTyCon str; \
+instance Typeable4 tycon where { typeOf4 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable3 (tycon a) where { \
+  typeOf3 = typeOf3Default }; \
+instance (Typeable a, Typeable b) => Typeable2 (tycon a b) where { \
+  typeOf2 = typeOf2Default }; \
+instance (Typeable a, Typeable b, Typeable c) => Typeable1 (tycon a b c) where { \
+  typeOf1 = typeOf1Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d) => Typeable (tycon a b c d) where { \
+  typeOf = typeOfDefault }
+
+#define INSTANCE_TYPEABLE5(tycon,tcname,str) \
+tcname = mkTyCon str; \
+instance Typeable5 tycon where { typeOf5 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable4 (tycon a) where { \
+  typeOf4 = typeOf4Default }; \
+instance (Typeable a, Typeable b) => Typeable3 (tycon a b) where { \
+  typeOf3 = typeOf3Default }; \
+instance (Typeable a, Typeable b, Typeable c) => Typeable2 (tycon a b c) where { \
+  typeOf2 = typeOf2Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d) => Typeable1 (tycon a b c d) where { \
+  typeOf1 = typeOf1Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e) => Typeable (tycon a b c d e) where { \
+  typeOf = typeOfDefault }
+
+#define INSTANCE_TYPEABLE6(tycon,tcname,str) \
+tcname = mkTyCon str; \
+instance Typeable6 tycon where { typeOf6 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable5 (tycon a) where { \
+  typeOf5 = typeOf5Default }; \
+instance (Typeable a, Typeable b) => Typeable4 (tycon a b) where { \
+  typeOf4 = typeOf4Default }; \
+instance (Typeable a, Typeable b, Typeable c) => Typeable3 (tycon a b c) where { \
+  typeOf3 = typeOf3Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d) => Typeable2 (tycon a b c d) where { \
+  typeOf2 = typeOf2Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e) => Typeable1 (tycon a b c d e) where { \
+  typeOf1 = typeOf1Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Typeable f) => Typeable (tycon a b c d e f) where { \
+  typeOf = typeOfDefault }
+
+#define INSTANCE_TYPEABLE7(tycon,tcname,str) \
+tcname = mkTyCon str; \
+instance Typeable7 tycon where { typeOf7 _ = mkTyConApp tcname [] }; \
+instance Typeable a => Typeable6 (tycon a) where { \
+  typeOf6 = typeOf6Default }; \
+instance (Typeable a, Typeable b) => Typeable5 (tycon a b) where { \
+  typeOf5 = typeOf5Default }; \
+instance (Typeable a, Typeable b, Typeable c) => Typeable4 (tycon a b c) where { \
+  typeOf4 = typeOf4Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d) => Typeable3 (tycon a b c d) where { \
+  typeOf3 = typeOf3Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e) => Typeable2 (tycon a b c d e) where { \
+  typeOf2 = typeOf2Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Typeable f) => Typeable1 (tycon a b c d e f) where { \
+  typeOf1 = typeOf1Default }; \
+instance (Typeable a, Typeable b, Typeable c, Typeable d, Typeable e, Typeable f, Typeable g) => Typeable (tycon a b c d e f g) where { \
+  typeOf = typeOfDefault }
+
+#endif /* !__GLASGOW_HASKELL__ */
+
+#endif