\begin{code}
module Module
(
- Module, moduleName
- -- abstract, instance of Eq, Ord, Outputable
+ Module, -- Abstract, instance of Eq, Ord, Outputable
+
+ , PackageName -- = FastString; instance of Outputable, Uniquable
+ , modulePackage -- :: Module -> PackageName
+ , preludePackage -- :: PackageName name of Standard Prelude package
+
, ModuleName
- , isModuleInThisPackage, mkModuleInThisPackage
+ , pprModuleName -- :: ModuleName -> SDoc
+ , printModulePrefix
+ , moduleName -- :: Module -> ModuleName
, moduleNameString -- :: ModuleName -> EncodedString
, moduleNameUserString -- :: ModuleName -> UserString
, moduleNameFS -- :: ModuleName -> EncodedFS
, moduleString -- :: Module -> EncodedString
, moduleUserString -- :: Module -> UserString
- , moduleName -- :: Module -> ModuleName
, mkVanillaModule -- :: ModuleName -> Module
+ , isVanillaModule -- :: Module -> Bool
, mkPrelModule -- :: UserString -> Module
+ , isPrelModule -- :: Module -> Bool
, mkModule -- :: ModuleName -> PackageName -> Module
, mkHomeModule -- :: ModuleName -> Module
-
--- , mkSrcModule
+ , isHomeModule -- :: Module -> Bool
, mkModuleName -- :: UserString -> ModuleName
, mkModuleNameFS -- :: UserFS -> ModuleName
, pprModule,
- , PackageName
-
-- Where to find a .hi file
, WhereFrom(..)
, elemModuleEnv, extendModuleEnv, extendModuleEnvList, plusModuleEnv_C
, delModuleEnvList, delModuleEnv, plusModuleEnv, lookupModuleEnv
, lookupWithDefaultModuleEnv, mapModuleEnv, mkModuleEnv, emptyModuleEnv
- , rngModuleEnv, unitModuleEnv, isEmptyModuleEnv, foldModuleEnv, lookupModuleEnvByName
+ , moduleEnvElts, unitModuleEnv, isEmptyModuleEnv, foldModuleEnv
+ , lookupModuleEnvByName, extendModuleEnv_C
+
+ , ModuleSet, emptyModuleSet, mkModuleSet, moduleSetElts, extendModuleSet, elemModuleSet
) where
import OccName
import Outputable
import CmdLineOpts ( opt_InPackage )
-import FastString ( FastString, uniqueOfFS )
-import Unique ( Uniquable(..), mkUniqueGrimily )
+import FastString ( FastString )
+import Unique ( Uniquable(..) )
import UniqFM
+import UniqSet
\end{code}
\begin{code}
data Module = Module ModuleName PackageInfo
-data PackageInfo
+data PackageInfo
= ThisPackage -- A module from the same package
-- 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 PackageName
+
type PackageName = FastString -- No encoding at all
preludePackage :: PackageName
preludePackage = SLIT("std")
+packageInfoPackage :: PackageInfo -> PackageName
+packageInfoPackage ThisPackage = opt_InPackage
+packageInfoPackage DunnoYet = SLIT("<?>")
+packageInfoPackage (AnotherPackage p) = p
+
instance Outputable PackageInfo where
-- Just used in debug prints of lex tokens and in debug modde
- ppr ThisPackage = ptext SLIT("<THIS>")
- ppr (AnotherPackage p) = ptext p
+ ppr pkg_info = ppr (packageInfoPackage pkg_info)
\end{code}
| ImportBySystem -- Non user import. Look for M.hi if M is in
-- the module this module depends on, or is a system-ish module;
-- M.hi-boot otherwise
+ | ImportByCmdLine -- The user typed a qualified name at
+ -- the GHCi prompt, try to demand-load
+ -- the interface.
instance Outputable WhereFrom where
ppr ImportByUser = empty
-- so the module names have the z-encoding applied to them
instance Uniquable ModuleName where
- getUnique (ModuleName nm) = mkUniqueGrimily (uniqueOfFS nm)
+ getUnique (ModuleName nm) = getUnique nm
instance Eq ModuleName where
nm1 == nm2 = getUnique nm1 == getUnique nm2
-- used to be called mkSysModuleFS
mkSysModuleNameFS :: EncodedFS -> ModuleName
mkSysModuleNameFS s = ModuleName s
-
--- Make a module in this package
-mkModuleInThisPackage :: ModuleName -> Module
-mkModuleInThisPackage nm = Module nm ThisPackage
\end{code}
\begin{code}
mkHomeModule :: ModuleName -> Module
mkHomeModule mod_nm = Module mod_nm ThisPackage
+isHomeModule :: Module -> Bool
+isHomeModule (Module nm ThisPackage) = True
+isHomeModule _ = False
+
-- Used temporarily when we first come across Foo.x in an interface
-- file, but before we've opened Foo.hi.
--- (Until we've opened Foo.hi we don't know what the PackageInfo is.)
+-- (Until we've opened Foo.hi we don't know what the Package is.)
mkVanillaModule :: ModuleName -> Module
-mkVanillaModule name = mkModule name (panic "mkVanillaModule:unknown mod_kind field")
+mkVanillaModule name = Module name DunnoYet
+
+isVanillaModule :: Module -> Bool
+isVanillaModule (Module nm DunnoYet) = True
+isVanillaModule _ = False
mkPrelModule :: ModuleName -> Module
mkPrelModule name = mkModule name preludePackage
+isPrelModule :: Module -> Bool
+isPrelModule (Module nm (AnotherPackage p)) | p == preludePackage = True
+isPrelModule _ = False
+
moduleString :: Module -> EncodedString
moduleString (Module (ModuleName fs) _) = _UNPK_ fs
moduleName :: Module -> ModuleName
-moduleName (Module mod _) = mod
+moduleName (Module mod pkg_info) = mod
+
+modulePackage :: Module -> PackageName
+modulePackage (Module mod pkg_info) = packageInfoPackage pkg_info
moduleUserString :: Module -> UserString
moduleUserString (Module mod _) = moduleNameUserString mod
-isModuleInThisPackage :: Module -> Bool
-isModuleInThisPackage (Module nm ThisPackage) = True
-isModuleInThisPackage _ = False
+printModulePrefix :: Module -> Bool
+ -- When printing, say M.x
+printModulePrefix (Module nm ThisPackage) = False
+printModulePrefix _ = True
\end{code}
+
%************************************************************************
%* *
\subsection{@ModuleEnv@s}
mkModuleEnv :: [(Module, a)] -> ModuleEnv a
unitModuleEnv :: Module -> a -> ModuleEnv a
extendModuleEnv :: ModuleEnv a -> Module -> a -> ModuleEnv a
+extendModuleEnv_C :: (a->a->a) -> ModuleEnv a -> Module -> a -> ModuleEnv a
plusModuleEnv :: ModuleEnv a -> ModuleEnv a -> ModuleEnv a
extendModuleEnvList :: ModuleEnv a -> [(Module, a)] -> ModuleEnv a
delModuleEnv :: ModuleEnv a -> Module -> ModuleEnv a
plusModuleEnv_C :: (a -> a -> a) -> ModuleEnv a -> ModuleEnv a -> ModuleEnv a
mapModuleEnv :: (a -> b) -> ModuleEnv a -> ModuleEnv b
-rngModuleEnv :: ModuleEnv a -> [a]
+moduleEnvElts :: ModuleEnv a -> [a]
isEmptyModuleEnv :: ModuleEnv a -> Bool
lookupModuleEnv :: ModuleEnv a -> Module -> Maybe a
elemModuleEnv = elemUFM
extendModuleEnv = addToUFM
+extendModuleEnv_C = addToUFM_C
extendModuleEnvList = addListToUFM
plusModuleEnv_C = plusUFM_C
delModuleEnvList = delListFromUFM
mapModuleEnv = mapUFM
mkModuleEnv = listToUFM
emptyModuleEnv = emptyUFM
-rngModuleEnv = eltsUFM
+moduleEnvElts = eltsUFM
unitModuleEnv = unitUFM
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}
projects / ghc-hetmet.git / blobdiff