Add accessors to 'HsModule' and haddockify it.

diff --git a/compiler/hsSyn/HsSyn.lhs b/compiler/hsSyn/HsSyn.lhs
index 6277f5c..45d1ec0 100644 (file)
--- a/compiler/hsSyn/HsSyn.lhs
+++ b/compiler/hsSyn/HsSyn.lhs
@@ -47,23 +47,35 @@ import Module               ( Module, ModuleName )
 import FastString
 \end{code}
 
-All we actually declare here is the top-level structure for a module.
 \begin{code}
+-- | All we actually declare here is the top-level structure for a module.
 data HsModule name
-  = HsModule
-       (Maybe (Located ModuleName))-- Nothing => "module X where" is omitted
-                               --      (in which case the next field is Nothing too)
-       (Maybe [LIE name])      -- Export list; Nothing => export list omitted, so export everything
-                               -- Just [] => export *nothing*
-                               -- Just [...] => as you would expect...
-       [LImportDecl name]      -- We snaffle interesting stuff out of the
-                               -- imported interfaces early on, adding that
-                               -- info to TyDecls/etc; so this list is
-                               -- often empty, downstream.
-       [LHsDecl name]          -- Type, class, value, and interface signature decls
-       (Maybe WarningTxt)      -- reason/explanation for warning/deprecation of this module
-       (HaddockModInfo name)   -- Haddock module info
-       (Maybe (HsDoc name))    -- Haddock module description
+  = HsModule {
+      hsmodName :: Maybe (Located ModuleName),
+        -- ^ @Nothing@: \"module X where\" is omitted (in which case the next
+        --     field is Nothing too)
+      hsmodExports :: Maybe [LIE name],
+        -- ^ Export list
+        --
+        --  - @Nothing@: export list omitted, so export everything
+        --
+        --  - @Just []@: export /nothing/
+        --
+        --  - @Just [...]@: as you would expect...
+        --
+      hsmodImports :: [LImportDecl name],
+        -- ^ We snaffle interesting stuff out of the imported interfaces early
+        -- on, adding that info to TyDecls/etc; so this list is often empty,
+        -- downstream.
+      hsmodDecls :: [LHsDecl name],
+        -- ^ Type, class, value, and interface signature decls
+      hsmodDeprecMessage :: Maybe WarningTxt,
+        -- ^ reason\/explanation for warning/deprecation of this module
+      hsmodHaddockModInfo :: HaddockModInfo name,
+        -- ^ Haddock module info
+      hsmodHaddockModDescr :: Maybe (HsDoc name)
+        -- ^ Haddock module description
+   }
 
 data HaddockModInfo name = HaddockModInfo { 
        hmi_description :: Maybe (HsDoc name),