Retain inline-pragma information on unfoldings in interface files

[ghc-hetmet.git] / compiler / iface / MkIface.lhs

diff --git a/compiler/iface/MkIface.lhs b/compiler/iface/MkIface.lhs
index a02f449..6f3e336 100644 (file)
--- a/compiler/iface/MkIface.lhs
+++ b/compiler/iface/MkIface.lhs
@@ -832,9 +832,8 @@ check_old_iface hsc_env mod_summary source_unchanged maybe_iface
 
      -- If the source has changed and we're in interactive mode, avoid reading
      -- an interface; just return the one we might have been supplied with.
-    ; ghc_mode <- getGhcMode
-    ; if (ghc_mode == Interactive || ghc_mode == JustTypecheck) 
-        && not source_unchanged then
+    ; let dflags = hsc_dflags hsc_env
+    ; if not (isObjectTarget (hscTarget dflags)) && not source_unchanged then
          return (outOfDate, maybe_iface)
       else
       case maybe_iface of {
@@ -1175,6 +1174,22 @@ famInstToIfaceFamInst fi@(FamInst { fi_tycon = tycon,
     do_rough (Just n) = Just (toIfaceTyCon_name n)
 
 --------------------------
+toIfaceLetBndr id  = IfLetBndr (occNameFS (getOccName id))
+                              (toIfaceType (idType id)) 
+                              prag_info
+  where
+       -- Stripped-down version of tcIfaceIdInfo
+       -- Change this if you want to export more IdInfo for
+       -- non-top-level Ids.  Don't forget to change
+       -- CoreTidy.tidyLetBndr too!
+       --
+       -- See Note [IdInfo on nested let-bindings] in IfaceSyn
+    id_info = idInfo id
+    inline_prag = inlinePragInfo id_info
+    prag_info | isAlwaysActive inline_prag = NoInfo
+             | otherwise                  = HasInfo [HsInline inline_prag]
+
+--------------------------
 toIfaceIdInfo :: IdInfo -> [IfaceInfoItem]
 toIfaceIdInfo id_info
   = catMaybes [arity_hsinfo, caf_hsinfo, strict_hsinfo, 
@@ -1283,8 +1298,8 @@ toIfaceNote InlineMe      = IfaceInlineMe
 toIfaceNote (CoreNote s)  = IfaceCoreNote s
 
 ---------------------
-toIfaceBind (NonRec b r) = IfaceNonRec (toIfaceIdBndr b) (toIfaceExpr r)
-toIfaceBind (Rec prs)    = IfaceRec [(toIfaceIdBndr b, toIfaceExpr r) | (b,r) <- prs]
+toIfaceBind (NonRec b r) = IfaceNonRec (toIfaceLetBndr b) (toIfaceExpr r)
+toIfaceBind (Rec prs)    = IfaceRec [(toIfaceLetBndr b, toIfaceExpr r) | (b,r) <- prs]
 
 ---------------------
 toIfaceAlt (c,bs,r) = (toIfaceCon c, map getFS bs, toIfaceExpr r)