X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2FdeSugar%2FDsForeign.lhs;h=46fc0747a2742feeea33ea4dcfe13441045db691;hp=725681e83c302ed5564dd142612de648a38399f3;hb=5edf58c10a0144fa8b328e18d0b7fffec2319424;hpb=21ea19b80bf4e16898406bd3241e8ab3de0c6c66

diff --git a/compiler/deSugar/DsForeign.lhs b/compiler/deSugar/DsForeign.lhs
index 725681e..46fc074 100644
--- a/compiler/deSugar/DsForeign.lhs
+++ b/compiler/deSugar/DsForeign.lhs
@@ -28,12 +28,13 @@ import SMRep		( argMachRep, typeCgRep )
 import CoreUtils	( exprType, mkInlineMe )
 import Id		( Id, idType, idName, mkSysLocal, setInlinePragma )
 import Literal		( Literal(..), mkStringLit )
-import Module		( moduleFS )
+import Module		( moduleNameFS, moduleName )
 import Name		( getOccString, NamedThing(..) )
 import Type		( repType, coreEqType )
 import TcType		( Type, mkFunTys, mkForAllTys, mkTyConApp,
 			  mkFunTy, tcSplitTyConApp_maybe, tcSplitIOType_maybe,
 			  tcSplitForAllTys, tcSplitFunTys, tcTyConAppArgs,
+			  isBoolTy
 			)
 
 import BasicTypes       ( Boxity(..) )
@@ -45,7 +46,7 @@ import ForeignCall	( ForeignCall(..), CCallSpec(..),
 			  ccallConvAttribute
 			)
 import TysWiredIn	( unitTy, tupleTyCon )
-import TysPrim		( addrPrimTy, mkStablePtrPrimTy, alphaTy )
+import TysPrim		( addrPrimTy, mkStablePtrPrimTy, alphaTy, intPrimTy )
 import PrelNames	( stablePtrTyConName, newStablePtrName, bindIOName,
 			  checkDotnetResName )
 import BasicTypes	( Activation( NeverActive ) )
@@ -350,10 +351,10 @@ dsFExportDynamic :: Id
 		 -> DsM ([Binding], SDoc, SDoc)
 dsFExportDynamic id cconv
   =  newSysLocalDs ty				 `thenDs` \ fe_id ->
-     getModuleDs				`thenDs` \ mod_name -> 
+     getModuleDs				`thenDs` \ mod -> 
      let 
         -- hack: need to get at the name of the C stub we're about to generate.
-       fe_nm	   = mkFastString (unpackFS (zEncodeFS (moduleFS mod_name)) ++ "_" ++ toCName fe_id)
+       fe_nm	   = mkFastString (unpackFS (zEncodeFS (moduleNameFS (moduleName mod))) ++ "_" ++ toCName fe_id)
      in
      newSysLocalDs arg_ty			`thenDs` \ cback ->
      dsLookupGlobalId newStablePtrName		`thenDs` \ newStablePtrId ->
@@ -629,16 +630,19 @@ ret_addr_arg = (text "original_return_addr", text "void*", undefined,
 		typeMachRep addrPrimTy)
 
 -- This function returns the primitive type associated with the boxed
--- type argument to a foreign export (eg. Int ==> Int#).  It assumes
--- that all the types we are interested in have a single constructor
--- with a single primitive-typed argument, which is true for all of the legal
--- foreign export argument types (see TcType.legalFEArgTyCon).
+-- type argument to a foreign export (eg. Int ==> Int#).
 getPrimTyOf :: Type -> Type
-getPrimTyOf ty =
-  case splitProductType_maybe (repType ty) of
+getPrimTyOf ty
+  | isBoolTy rep_ty = intPrimTy
+  -- Except for Bool, the types we are interested in have a single constructor
+  -- with a single primitive-typed argument (see TcType.legalFEArgTyCon).
+  | otherwise =
+  case splitProductType_maybe rep_ty of
      Just (_, _, data_con, [prim_ty]) ->
 	ASSERT(dataConSourceArity data_con == 1)
 	ASSERT2(isUnLiftedType prim_ty, ppr prim_ty)
 	prim_ty
      _other -> pprPanic "DsForeign.getPrimTyOf" (ppr ty)
+  where
+	rep_ty = repType ty
 \end{code}