\begin{code}
module Module
(
- Module, moduleName
+ Module, moduleName, packageOfModule,
-- abstract, instance of Eq, Ord, Outputable
, ModuleName
- , isModuleInThisPackage, mkModuleInThisPackage
+ , isModuleInThisPackage, mkModuleInThisPackage,
+ , printModulePrefix
, moduleNameString -- :: ModuleName -> EncodedString
, moduleNameUserString -- :: ModuleName -> UserString
, moduleString -- :: Module -> EncodedString
, moduleUserString -- :: Module -> UserString
- , moduleName -- :: Module -> ModuleName
, mkVanillaModule -- :: ModuleName -> Module
, mkPrelModule -- :: UserString -> Module
, moduleEnvElts, unitModuleEnv, isEmptyModuleEnv, foldModuleEnv
, lookupModuleEnvByName, extendModuleEnv_C
+ , ModuleSet, emptyModuleSet, mkModuleSet, moduleSetElts, extendModuleSet, elemModuleSet
+
) where
#include "HsVersions.h"
import FastString ( FastString, uniqueOfFS )
import Unique ( Uniquable(..), mkUniqueGrimily )
import UniqFM
+import UniqSet
\end{code}
-- as the one being compiled
| AnotherPackage PackageName -- A module from a different package
+ | DunnoYet -- This is used when we don't yet know
+ -- Main case: we've come across Foo.x in an interface file
+ -- but we havn't yet opened Foo.hi. We need a Name for Foo.x
+ -- Later on (in RnEnv.newTopBinder) we'll update the cache
+ -- to have the right PackageInfo
+
type PackageName = FastString -- No encoding at all
preludePackage :: PackageName
instance Outputable PackageInfo where
-- Just used in debug prints of lex tokens and in debug modde
ppr ThisPackage = ptext SLIT("<THIS>")
+ ppr DunnoYet = ptext SLIT("<?>")
ppr (AnotherPackage p) = ptext p
\end{code}
-- file, but before we've opened Foo.hi.
-- (Until we've opened Foo.hi we don't know what the PackageInfo is.)
mkVanillaModule :: ModuleName -> Module
-mkVanillaModule name = mkModule name (panic "mkVanillaModule:unknown mod_kind field")
+mkVanillaModule name = Module name DunnoYet
mkPrelModule :: ModuleName -> Module
mkPrelModule name = mkModule name preludePackage
moduleString (Module (ModuleName fs) _) = _UNPK_ fs
moduleName :: Module -> ModuleName
-moduleName (Module mod _) = mod
+moduleName (Module mod pkg_info) = mod
moduleUserString :: Module -> UserString
moduleUserString (Module mod _) = moduleNameUserString mod
isModuleInThisPackage :: Module -> Bool
isModuleInThisPackage (Module nm ThisPackage) = True
isModuleInThisPackage _ = False
+
+packageOfModule :: Module -> Maybe PackageName
+packageOfModule (Module nm (AnotherPackage pn)) = Just pn
+packageOfModule _ = Nothing
+
+printModulePrefix :: Module -> Bool
+ -- When printing, say M.x
+printModulePrefix (Module nm ThisPackage) = False
+printModulePrefix _ = True
\end{code}
+
%************************************************************************
%* *
\subsection{@ModuleEnv@s}
isEmptyModuleEnv = isNullUFM
foldModuleEnv = foldUFM
\end{code}
+
+\begin{code}
+
+type ModuleSet = UniqSet Module
+mkModuleSet :: [Module] -> ModuleSet
+extendModuleSet :: ModuleSet -> Module -> ModuleSet
+emptyModuleSet :: ModuleSet
+moduleSetElts :: ModuleSet -> [Module]
+elemModuleSet :: Module -> ModuleSet -> Bool
+
+emptyModuleSet = emptyUniqSet
+mkModuleSet = mkUniqSet
+extendModuleSet = addOneToUniqSet
+moduleSetElts = uniqSetToList
+elemModuleSet = elementOfUniqSet
+\end{code}