X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2FcoreSyn%2FMkExternalCore.lhs;h=4fa8218cf6c606f94c8c9e96c04a97296d625403;hb=9ab0ac4fecdf56e96c69c987cbfa22806ef3722f;hp=1d2ee0e396c82e40a5503c12311647fea9921dd0;hpb=61d2625ae2e6a4cdae2ffc92df828905e81c24cc;p=ghc-hetmet.git

diff --git a/compiler/coreSyn/MkExternalCore.lhs b/compiler/coreSyn/MkExternalCore.lhs
index 1d2ee0e..4fa8218 100644
--- a/compiler/coreSyn/MkExternalCore.lhs
+++ b/compiler/coreSyn/MkExternalCore.lhs
@@ -1,7 +1,13 @@
-%
-% (c) The University of Glasgow 2001
+
+% (c) The University of Glasgow 2001-2006
 %
 \begin{code}
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
 
 module MkExternalCore (
 	emitExternalCore
@@ -10,28 +16,25 @@ module MkExternalCore (
 #include "HsVersions.h"
 
 import qualified ExternalCore as C
-import Char
 import Module
 import CoreSyn
 import HscTypes	
 import TyCon
 import TypeRep
 import Type
-import PprExternalCore	-- Instances
-import DataCon	( DataCon, dataConTyVars, dataConRepArgTys, 
-		  dataConName, dataConTyCon )
-import CoreSyn
+import PprExternalCore () -- Instances
+import DataCon
+import Coercion
 import Var
 import IdInfo
-import Kind
 import Literal
 import Name
-import NameSet ( NameSet, emptyNameSet )
-import UniqSet ( elementOfUniqSet )
+import NameSet
+import UniqSet
 import Outputable
 import ForeignCall
-import DynFlags	( DynFlags(..) )
-import StaticFlags	( opt_EmitExternalCore )
+import DynFlags
+import StaticFlags
 import IO
 import FastString
 
@@ -41,8 +44,8 @@ emitExternalCore dflags exports cg_guts
  = (do handle <- openFile corename WriteMode
        hPutStrLn handle (show (mkExternalCore exports cg_guts))      
        hClose handle)
-   `catch` (\err -> pprPanic "Failed to open or write external core output file" 
-	                     (text corename))
+   `catch` (\_ -> pprPanic "Failed to open or write external core output file"
+                           (text corename))
    where corename = extCoreName dflags
 emitExternalCore _ _ _
  | otherwise
@@ -66,13 +69,11 @@ collect_tdefs tcon tdefs
   where
     tdef | isNewTyCon tcon = 
                 C.Newtype (make_con_qid (tyConName tcon)) (map make_tbind tyvars) repclause 
--- 20060420 GHC handles empty data types just fine. ExtCore should too! jds
---         | null (tyConDataCons tcon) = error "MkExternalCore died: can't handle datatype declarations with no data constructors"
          | otherwise = 
                 C.Data (make_con_qid (tyConName tcon)) (map make_tbind tyvars) (map make_cdef (tyConDataCons tcon)) 
-         where repclause | isRecursiveTyCon tcon = Nothing
-		         | otherwise = Just (make_ty rep)
-                                           where (_, rep) = newTyConRep tcon
+         where repclause | isRecursiveTyCon tcon || isOpenTyCon tcon= Nothing
+		         | otherwise = Just (make_ty (repType rhs))
+                                           where (_, rhs) = newTyConRhs tcon
     tyvars = tyConTyVars tcon
 
 collect_tdefs _ tdefs = tdefs
@@ -83,7 +84,7 @@ make_cdef dcon =  C.Constr dcon_name existentials tys
   where 
     dcon_name    = make_var_id (dataConName dcon)
     existentials = map make_tbind ex_tyvars
-    ex_tyvars    = drop (tyConArity (dataConTyCon dcon)) (dataConTyVars dcon)
+    ex_tyvars    = dataConExTyVars dcon
     tys 	 = map make_ty (dataConRepArgTys dcon)
 
 make_tbind :: TyVar -> C.Tbind
@@ -107,20 +108,25 @@ make_exp (Var v) =
   case globalIdDetails v of
      -- a DataConId represents the Id of a worker, which is a varName. -- sof 4/02
 --    DataConId _ -> C.Dcon (make_con_qid (Var.varName v))
-    FCallId (CCall (CCallSpec (StaticTarget nm) _ _)) -> C.External (unpackFS nm) (make_ty (idType v))
-    FCallId _ -> error "MkExternalCore died: can't handle non-static-C foreign call"
+    FCallId (CCall (CCallSpec (StaticTarget nm) callconv _)) 
+        -> C.External (unpackFS nm) (showSDoc (ppr callconv)) (make_ty (idType v))
+    FCallId (CCall (CCallSpec DynamicTarget     callconv _)) 
+        -> C.DynExternal            (showSDoc (ppr callconv)) (make_ty (idType v))
+    FCallId _ 
+        -> pprPanic "MkExternalCore died: can't handle non-{static,dynamic}-C foreign call"
+                    (ppr v)
     _ -> C.Var (make_var_qid (Var.varName v))
-make_exp (Lit (l@(MachLabel s _))) = error "MkExternalCore died: can't handle \"foreign label\" declarations"
+make_exp (Lit (MachLabel s _)) = C.Label (unpackFS s)
 make_exp (Lit l) = C.Lit (make_lit l)
 make_exp (App e (Type t)) = C.Appt (make_exp e) (make_ty t)
 make_exp (App e1 e2) = C.App (make_exp e1) (make_exp e2)
 make_exp (Lam v e) | isTyVar v = C.Lam (C.Tb (make_tbind v)) (make_exp e)
 make_exp (Lam v e) | otherwise = C.Lam (C.Vb (make_vbind v)) (make_exp e)
+make_exp (Cast e co) = C.Cast (make_exp e) (make_ty co)
 make_exp (Let b e) = C.Let (make_vdef emptyNameSet b) (make_exp e)
 -- gaw 2004
 make_exp (Case e v ty alts) = C.Case (make_exp e) (make_vbind v) (make_ty ty) (map make_alt alts)
-make_exp (Note (SCC cc) e) = C.Note "SCC"  (make_exp e) -- temporary
-make_exp (Note (Coerce t_to t_from) e) = C.Coerce (make_ty t_to) (make_exp e)
+make_exp (Note (SCC _) e) = C.Note "SCC"  (make_exp e) -- temporary
 make_exp (Note (CoreNote s) e) = C.Note s (make_exp e)  -- hdaume: core annotations
 make_exp (Note InlineMe e) = C.Note "InlineMe" (make_exp e)
 make_exp _ = error "MkExternalCore died: make_exp"
@@ -176,11 +182,13 @@ make_ty (NoteTy _ t) 	= make_ty t
 
 
 make_kind :: Kind -> C.Kind
-make_kind (FunKind k1 k2)  = C.Karrow (make_kind k1) (make_kind k2)
-make_kind LiftedTypeKind   = C.Klifted
-make_kind UnboxedTypeKind  = C.Kunboxed
-make_kind UnliftedTypeKind = C.Kunlifted
-make_kind OpenTypeKind     = C.Kopen
+make_kind (PredTy p) | isEqPred p = C.Keq (make_ty t1) (make_ty t2)
+    where (t1, t2) = getEqPredTys p
+make_kind (FunTy k1 k2)  = C.Karrow (make_kind k1) (make_kind k2)
+make_kind k
+  | isLiftedTypeKind k   = C.Klifted
+  | isUnliftedTypeKind k = C.Kunlifted
+  | isOpenTypeKind k     = C.Kopen
 make_kind _ = error "MkExternalCore died: make_kind"
 
 {- Id generation. -}
@@ -188,7 +196,7 @@ make_kind _ = error "MkExternalCore died: make_kind"
 {- Use encoded strings.
    Also, adjust casing to work around some badly-chosen internal names. -}
 make_id :: Bool -> Name -> C.Id
-make_id is_var nm = (occNameString . nameOccName) nm
+make_id _is_var nm = (occNameString . nameOccName) nm
 
 {-	SIMON thinks this stuff isn't necessary
 make_id is_var nm =