[project @ 2000-03-01 15:20:54 by panne]

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

diff --git a/ghc/compiler/hsSyn/HsSyn.lhs b/ghc/compiler/hsSyn/HsSyn.lhs
index 4bfce78..42731cc 100644 (file)
--- a/ghc/compiler/hsSyn/HsSyn.lhs
+++ b/ghc/compiler/hsSyn/HsSyn.lhs
@@ -45,14 +45,14 @@ import BasicTypes   ( Fixity, Version, NewOrData )
 import Outputable
 import SrcLoc          ( SrcLoc )
 import Bag
-import Module          ( Module, pprModule )
+import Module          ( ModuleName, pprModuleName )
 \end{code}
 
 All we actually declare here is the top-level structure for a module.
 \begin{code}
 data HsModule name pat
   = HsModule
-       Module                  -- module name
+       ModuleName              -- module name
        (Maybe Version)         -- source interface version number
        (Maybe [IE name])       -- export list; Nothing => export everything
                                -- Just [] => export *nothing* (???)
@@ -62,6 +62,7 @@ data HsModule name pat
                                -- info to TyDecls/etc; so this list is
                                -- often empty, downstream.
        [HsDecl name pat]       -- Type, class, value, and interface signature decls
+       (Maybe DeprecTxt)       -- reason/explanation for deprecation of this module
        SrcLoc
 \end{code}
 
@@ -70,12 +71,12 @@ instance (Outputable name, Outputable pat)
        => Outputable (HsModule name pat) where
 
     ppr (HsModule name iface_version exports imports
-                     decls src_loc)
+                     decls deprec src_loc)
       = vcat [
            case exports of
-             Nothing -> hsep [ptext SLIT("module"), pprModule name, ptext SLIT("where")]
+             Nothing -> pp_header (ptext SLIT("where"))
              Just es -> vcat [
-                           hsep [ptext SLIT("module"), pprModule name, lparen],
+                           pp_header lparen,
                            nest 8 (fsep (punctuate comma (map ppr es))),
                            nest 4 (ptext SLIT(") where"))
                          ],
@@ -83,6 +84,12 @@ instance (Outputable name, Outputable pat)
            pp_nonnull decls
        ]
       where
+       pp_header rest = case deprec of
+           Nothing -> pp_modname <+> rest
+           Just d -> vcat [ pp_modname, ppr d, rest ]
+
+       pp_modname = ptext SLIT("module") <+> pprModuleName name
+
        pp_nonnull [] = empty
        pp_nonnull xs = vcat (map ppr xs)