[project @ 2002-05-06 08:30:05 by simonmar]

- Make the mi_usages and mi_deprecs fields of ModIface lazy again
  (mi_deprecs was already slurped lazilly from the interface file, but
  the strictness annotation on its field meant it was actually slurped
  strictly.  We're about to slurp mi_usages lazilly too.)

diff --git a/ghc/compiler/main/HscTypes.lhs b/ghc/compiler/main/HscTypes.lhs
index 046f44a..045c17f 100644 (file)
--- a/ghc/compiler/main/HscTypes.lhs
+++ b/ghc/compiler/main/HscTypes.lhs
@@ -168,10 +168,11 @@ data ModIface
 
        mi_boot     :: !IsBootInterface,    -- read from an hi-boot file?
 
-        mi_usages   :: ![ImportVersion Name],  
+        mi_usages   :: [ImportVersion Name],   
                -- Usages; kept sorted so that it's easy to decide
                -- whether to write a new iface file (changing usages
                -- doesn't affect the version of this module)
+               -- NOT STRICT!  we read this field lazilly from the interface file
 
         mi_exports  :: ![ExportItem],
                -- What it exports Kept sorted by (mod,occ), to make
@@ -182,7 +183,8 @@ data ModIface
                -- interface from a file.
 
         mi_fixities :: !FixityEnv,         -- Fixities
-       mi_deprecs  :: !Deprecations,       -- Deprecations
+       mi_deprecs  :: Deprecations,        -- Deprecations
+               -- NOT STRICT!  we read this field lazilly from the interface file
 
        mi_decls    :: IfaceDecls           -- The RnDecls form of ModDetails
                -- NOT STRICT!  we fill this field with _|_ sometimes
@@ -524,7 +526,7 @@ collectFixities env decls
 
 %************************************************************************
 %*                                                                     *
-\subsection{ModIface}
+\subsection{WhatsImported}
 %*                                                                     *
 %************************************************************************