(
Module, -- Abstract, instance of Eq, Ord, Outputable
- , PackageName -- = FastString; instance of Outputable, Uniquable
- , preludePackage -- :: PackageName
+ , ModLocation(..),
+ , showModMsg
, ModuleName
, pprModuleName -- :: ModuleName -> SDoc
, mkVanillaModule -- :: ModuleName -> Module
, isVanillaModule -- :: Module -> Bool
, mkPrelModule -- :: UserString -> Module
- , mkModule -- :: ModuleName -> PackageName -> Module
, mkHomeModule -- :: ModuleName -> Module
, isHomeModule -- :: Module -> Bool
, mkPackageModule -- :: ModuleName -> Module
, pprModule,
- -- Where to find a .hi file
- , WhereFrom(..)
-
, ModuleEnv,
, elemModuleEnv, extendModuleEnv, extendModuleEnvList, plusModuleEnv_C
, delModuleEnvList, delModuleEnv, plusModuleEnv, lookupModuleEnv
, lookupWithDefaultModuleEnv, mapModuleEnv, mkModuleEnv, emptyModuleEnv
, moduleEnvElts, unitModuleEnv, isEmptyModuleEnv, foldModuleEnv
- , lookupModuleEnvByName, extendModuleEnv_C
+ , extendModuleEnv_C
+ , lookupModuleEnvByName, extendModuleEnvByName, unitModuleEnvByName
, ModuleSet, emptyModuleSet, mkModuleSet, moduleSetElts, extendModuleSet, elemModuleSet
#include "HsVersions.h"
import OccName
import Outputable
+import Packages ( PackageName, preludePackage )
import CmdLineOpts ( opt_InPackage )
import FastString ( FastString )
import Unique ( Uniquable(..) )
+import Maybes ( expectJust )
import UniqFM
import UniqSet
import Binary
-- 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 = FSLIT("base")
-
packageInfoPackage :: PackageInfo -> PackageName
packageInfoPackage ThisPackage = opt_InPackage
packageInfoPackage DunnoYet = FSLIT("<?>")
%************************************************************************
%* *
-\subsection{Where from}
+\subsection{Module locations}
%* *
%************************************************************************
-The @WhereFrom@ type controls where the renamer looks for an interface file
-
\begin{code}
-data WhereFrom = ImportByUser -- Ordinary user import: look for M.hi
- | ImportByUserSource -- User {- SOURCE -}: look for M.hi-boot
- | 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
- ppr ImportByUserSource = ptext SLIT("{- SOURCE -}")
- ppr ImportBySystem = ptext SLIT("{- SYSTEM IMPORT -}")
+data ModLocation
+ = ModLocation {
+ ml_hs_file :: Maybe FilePath,
+ ml_hspp_file :: Maybe FilePath, -- path of preprocessed source
+ ml_hi_file :: FilePath,
+ ml_obj_file :: Maybe FilePath
+ }
+ deriving Show
+
+instance Outputable ModLocation where
+ ppr = text . show
+
+-- Rather a gruesome function to have in Module
+
+showModMsg :: Bool -> Module -> ModLocation -> String
+showModMsg use_object mod location =
+ mod_str ++ replicate (max 0 (16 - length mod_str)) ' '
+ ++" ( " ++ expectJust "showModMsg" (ml_hs_file location) ++ ", "
+ ++ (if use_object
+ then expectJust "showModMsg" (ml_obj_file location)
+ else "interpreted")
+ ++ " )"
+ where mod_str = moduleUserString mod
\end{code}
+For a module in another package, the hs_file and obj_file
+components of ModLocation are undefined.
+
+The locations specified by a ModLocation may or may not
+correspond to actual files yet: for example, even if the object
+file doesn't exist, the ModLocation still contains the path to
+where the object file will reside if/when it is created.
+
%************************************************************************
%* *
pprModule (Module mod p) = getPprStyle $ \ sty ->
if debugStyle sty then
-- Print the package too
- ppr p <> dot <> pprModuleName mod
+ -- Don't use '.' because it gets confused
+ -- with module names
+ brackets (ppr p) <> pprModuleName mod
else
pprModuleName mod
\end{code}
\begin{code}
-mkModule :: ModuleName -- Name of the module
- -> PackageName
- -> Module
-mkModule mod_nm pack_name
+mkPrelModule :: ModuleName -> Module
+mkPrelModule mod_nm
= Module mod_nm pack_info
where
- pack_info | pack_name == opt_InPackage = ThisPackage
- | otherwise = AnotherPackage
+ pack_info
+ | opt_InPackage == preludePackage = ThisPackage
+ | otherwise = AnotherPackage
mkHomeModule :: ModuleName -> Module
mkHomeModule mod_nm = Module mod_nm ThisPackage
isVanillaModule (Module nm DunnoYet) = True
isVanillaModule _ = False
-mkPrelModule :: ModuleName -> Module
-mkPrelModule name = mkModule name preludePackage
-
moduleString :: Module -> EncodedString
moduleString (Module (ModuleName fs) _) = unpackFS fs
\begin{code}
type ModuleEnv elt = UniqFM elt
+-- A ModuleName and Module have the same Unique,
+-- so both will work as keys.
+-- The 'ByName' variants work on ModuleNames
emptyModuleEnv :: ModuleEnv a
mkModuleEnv :: [(Module, a)] -> ModuleEnv a
isEmptyModuleEnv :: ModuleEnv a -> Bool
lookupModuleEnv :: ModuleEnv a -> Module -> Maybe a
-lookupModuleEnvByName:: ModuleEnv a -> ModuleName -> Maybe a
lookupWithDefaultModuleEnv :: ModuleEnv a -> a -> Module -> a
elemModuleEnv :: Module -> ModuleEnv a -> Bool
foldModuleEnv :: (a -> b -> b) -> b -> ModuleEnv a -> b
+-- The ByName variants
+lookupModuleEnvByName :: ModuleEnv a -> ModuleName -> Maybe a
+unitModuleEnvByName :: ModuleName -> a -> ModuleEnv a
+extendModuleEnvByName :: ModuleEnv a -> ModuleName -> a -> ModuleEnv a
+
elemModuleEnv = elemUFM
extendModuleEnv = addToUFM
+extendModuleEnvByName = addToUFM
extendModuleEnv_C = addToUFM_C
extendModuleEnvList = addListToUFM
plusModuleEnv_C = plusUFM_C
emptyModuleEnv = emptyUFM
moduleEnvElts = eltsUFM
unitModuleEnv = unitUFM
+unitModuleEnvByName = unitUFM
isEmptyModuleEnv = isNullUFM
foldModuleEnv = foldUFM
\end{code}
projects / ghc-hetmet.git / blobdiff