[project @ 1998-12-02 13:17:09 by simonm]

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

diff --git a/ghc/compiler/hsSyn/HsImpExp.lhs b/ghc/compiler/hsSyn/HsImpExp.lhs
index 07309d6..9083d9e 100644 (file)
--- a/ghc/compiler/hsSyn/HsImpExp.lhs
+++ b/ghc/compiler/hsSyn/HsImpExp.lhs
@@ -1,21 +1,17 @@
 %
-% (c) The GRASP/AQUA Project, Glasgow University, 1992-1996
+% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
 %
 \section[HsImpExp]{Abstract syntax: imports, exports, interfaces}
 
 \begin{code}
-#include "HsVersions.h"
-
 module HsImpExp where
 
-IMP_Ubiq()
+#include "HsVersions.h"
 
+import BasicTypes      ( Module, IfaceFlavour(..) )
+import Name            ( NamedThing )
 import Outputable
-import Pretty
 import SrcLoc          ( SrcLoc )
-#if __GLASGOW_HASKELL__ >= 202
-import Name
-#endif
 \end{code}
 
 %************************************************************************
@@ -29,6 +25,8 @@ One per \tr{import} declaration in a module.
 data ImportDecl name
   = ImportDecl   Module                        -- module name
                  Bool                          -- True => qualified
+                 IfaceFlavour                  -- True => source imported module 
+                                               --    (current interpretation: ignore ufolding info)
                  (Maybe Module)                -- as Module
                  (Maybe (Bool, [IE name]))     -- (True => hiding, names)
                  SrcLoc
@@ -36,21 +34,25 @@ data ImportDecl name
 
 \begin{code}
 instance (NamedThing name, Outputable name) => Outputable (ImportDecl name) where
-    ppr sty (ImportDecl mod qual as spec _)
-      = hang (hsep [ptext SLIT("import"), pp_qual qual, ptext mod, pp_as as])
+    ppr (ImportDecl mod qual as_source as spec _)
+      = hang (hsep [ptext SLIT("import"), pp_src as_source, 
+                    pp_qual qual, ptext mod, pp_as as])
             4 (pp_spec spec)
       where
+       pp_src HiFile     = empty
+       pp_src HiBootFile = ptext SLIT("{-# SOURCE #-}")
+
        pp_qual False   = empty
        pp_qual True    = ptext SLIT("qualified")
 
        pp_as Nothing   = empty
-       pp_as (Just a)  = (<>) (ptext SLIT("as ")) (ptext a)
+       pp_as (Just a)  = ptext SLIT("as ") <+> ptext a
 
        pp_spec Nothing = empty
        pp_spec (Just (False, spec))
-                       = parens (interpp'SP sty spec)
+                       = parens (interpp'SP spec)
        pp_spec (Just (True, spec))
-                       = (<>) (ptext SLIT("hiding ")) (parens (interpp'SP sty spec))
+                       = ptext SLIT("hiding") <+> parens (interpp'SP spec)
 \end{code}
 
 %************************************************************************
@@ -78,14 +80,12 @@ ieName (IEThingAll  n)   = n
 
 \begin{code}
 instance (NamedThing name, Outputable name) => Outputable (IE name) where
-    ppr sty (IEVar     var)    = ppr sty var
-    ppr sty (IEThingAbs        thing)  = ppr sty thing
-    ppr sty (IEThingAll        thing)
-       = hcat [ppr sty thing, text "(..)"]
-    ppr sty (IEThingWith thing withs)
-       = (<>) (ppr sty thing)
-           (parens (fsep (punctuate comma (map (ppr sty) withs))))
-    ppr sty (IEModuleContents mod)
-       = (<>) (ptext SLIT("module ")) (ptext mod)
+    ppr (IEVar         var)    = ppr var
+    ppr (IEThingAbs    thing)  = ppr thing
+    ppr (IEThingAll    thing)  = hcat [ppr thing, text "(..)"]
+    ppr (IEThingWith thing withs)
+       = ppr thing <> parens (fsep (punctuate comma (map ppr withs)))
+    ppr (IEModuleContents mod)
+       = ptext SLIT("module") <+> ptext mod
 \end{code}