setMsgHandler,
-- * Targets
- Target(..), TargetId(..),
+ Target(..), TargetId(..), Phase,
setTargets,
getTargets,
addTarget,
modInfoTopLevelScope,
modInfoPrintUnqualified,
modInfoExports,
+ modInfoIsExportedName,
+ modInfoLookupName,
lookupGlobalName,
-- * Interactive evaluation
Module, mkModule, pprModule,
-- ** Names
- Name,
+ Name, nameModule,
-- ** Identifiers
Id, idType,
#endif
import Packages ( initPackages )
-import NameSet ( NameSet, nameSetToList )
+import NameSet ( NameSet, nameSetToList, elemNameSet )
import RdrName ( GlobalRdrEnv, GlobalRdrElt(..), RdrName, gre_name,
globalRdrEnvElts )
import HsSyn
import TyCon ( TyCon, isClassTyCon, isSynTyCon, isNewTyCon )
import Class ( Class, classSCTheta, classTvsFds )
import DataCon ( DataCon )
-import Name ( Name )
+import Name ( Name, nameModule )
import NameEnv ( nameEnvElts )
import SrcLoc ( Located(..) )
import DriverPipeline
-- then use that
-- - otherwise interpret the string as a module name
--
-guessTarget :: String -> IO Target
-guessTarget file
+guessTarget :: String -> Maybe Phase -> IO Target
+guessTarget file (Just phase)
+ = return (Target (TargetFile file (Just phase)) Nothing)
+guessTarget file Nothing
| isHaskellSrcFilename file
- = return (Target (TargetFile file) Nothing)
+ = return (Target (TargetFile file Nothing) Nothing)
| otherwise
= do exists <- doesFileExist hs_file
- if exists then return (Target (TargetFile hs_file) Nothing) else do
+ if exists
+ then return (Target (TargetFile hs_file Nothing) Nothing)
+ else do
exists <- doesFileExist lhs_file
- if exists then return (Target (TargetFile lhs_file) Nothing) else do
+ if exists
+ then return (Target (TargetFile lhs_file Nothing) Nothing)
+ else do
return (Target (TargetModule (mkModule file)) Nothing)
where
- hs_file = file ++ ".hs"
- lhs_file = file ++ ".lhs"
+ hs_file = file `joinFileExt` "hs"
+ lhs_file = file `joinFileExt` "lhs"
-- -----------------------------------------------------------------------------
-- Loading the program
old_summary_map = mkNodeMap old_summaries
getRootSummary :: Target -> IO ModSummary
- getRootSummary (Target (TargetFile file) maybe_buf)
+ getRootSummary (Target (TargetFile file mb_phase) maybe_buf)
= do exists <- doesFileExist file
- if exists then summariseFile hsc_env file maybe_buf else do
+ if exists
+ then summariseFile hsc_env old_summaries file mb_phase maybe_buf
+ else do
throwDyn (CmdLineError ("can't find file: " ++ file))
getRootSummary (Target (TargetModule modl) maybe_buf)
- = do maybe_summary <- summarise hsc_env emptyNodeMap Nothing False
+ = do maybe_summary <- summariseModule hsc_env old_summary_map Nothing False
modl maybe_buf excl_mods
case maybe_summary of
Nothing -> packageModErr modl
loop [] done = return (nodeMapElts done)
loop ((cur_path, wanted_mod, is_boot) : ss) done
| key `elemFM` done = loop ss done
- | otherwise = do { mb_s <- summarise hsc_env old_summary_map
+ | otherwise = do { mb_s <- summariseModule hsc_env old_summary_map
(Just cur_path) is_boot
wanted_mod Nothing excl_mods
; case mb_s of
-- a summary. The finder is used to locate the file in which the module
-- resides.
-summariseFile :: HscEnv -> FilePath
- -> Maybe (StringBuffer,ClockTime)
- -> IO ModSummary
--- Used for Haskell source only, I think
--- We know the file name, and we know it exists,
--- but we don't necessarily know the module name (might differ)
-summariseFile hsc_env file maybe_buf
- = do let dflags = hsc_dflags hsc_env
+summariseFile
+ :: HscEnv
+ -> [ModSummary] -- old summaries
+ -> FilePath -- source file name
+ -> Maybe Phase -- start phase
+ -> Maybe (StringBuffer,ClockTime)
+ -> IO ModSummary
+
+summariseFile hsc_env old_summaries file mb_phase maybe_buf
+ -- we can use a cached summary if one is available and the
+ -- source file hasn't changed, But we have to look up the summary
+ -- by source file, rather than module name as we do in summarise.
+ | Just old_summary <- findSummaryBySourceFile old_summaries file
+ = do
+ let location = ms_location old_summary
+
+ -- return the cached summary if the source didn't change
+ src_timestamp <- case maybe_buf of
+ Just (_,t) -> return t
+ Nothing -> getModificationTime file
+
+ if ms_hs_date old_summary == src_timestamp
+ then do -- update the object-file timestamp
+ obj_timestamp <- getObjTimestamp location False
+ return old_summary{ ms_obj_date = obj_timestamp }
+ else
+ new_summary
+
+ | otherwise
+ = new_summary
+ where
+ new_summary = do
+ let dflags = hsc_dflags hsc_env
(dflags', hspp_fn, buf)
- <- preprocessFile dflags file maybe_buf
+ <- preprocessFile dflags file mb_phase maybe_buf
(srcimps,the_imps,mod) <- getImports dflags' buf hspp_fn
ms_hs_date = src_timestamp,
ms_obj_date = obj_timestamp })
+findSummaryBySourceFile :: [ModSummary] -> FilePath -> Maybe ModSummary
+findSummaryBySourceFile summaries file
+ = case [ ms | ms <- summaries, HsSrcFile <- [ms_hsc_src ms],
+ fromJust (ml_hs_file (ms_location ms)) == file ] of
+ [] -> Nothing
+ (x:xs) -> Just x
+
-- Summarise a module, and pick up source and timestamp.
-summarise :: HscEnv
+summariseModule
+ :: HscEnv
-> NodeMap ModSummary -- Map of old summaries
-> Maybe FilePath -- Importing module (for error messages)
-> IsBootInterface -- True <=> a {-# SOURCE #-} import
-> [Module] -- Modules to exclude
-> IO (Maybe ModSummary) -- Its new summary
-summarise hsc_env old_summary_map cur_mod is_boot wanted_mod maybe_buf excl_mods
+summariseModule hsc_env old_summary_map cur_mod is_boot wanted_mod maybe_buf excl_mods
| wanted_mod `elem` excl_mods
= return Nothing
= do -- Find its new timestamp; all the
-- ModSummaries in the old map have valid ml_hs_files
let location = ms_location old_summary
- src_fn = expectJust "summarise" (ml_hs_file location)
+ src_fn = expectJust "summariseModule" (ml_hs_file location)
-- return the cached summary if the source didn't change
src_timestamp <- case maybe_buf of
= do
-- Preprocess the source file and get its imports
-- The dflags' contains the OPTIONS pragmas
- (dflags', hspp_fn, buf) <- preprocessFile dflags src_fn maybe_buf
+ (dflags', hspp_fn, buf) <- preprocessFile dflags src_fn Nothing maybe_buf
(srcimps, the_imps, mod_name) <- getImports dflags' buf hspp_fn
when (mod_name /= wanted_mod) $
else modificationTimeIfExists (ml_obj_file location)
-preprocessFile :: DynFlags -> FilePath -> Maybe (StringBuffer,ClockTime)
+preprocessFile :: DynFlags -> FilePath -> Maybe Phase -> Maybe (StringBuffer,ClockTime)
-> IO (DynFlags, FilePath, StringBuffer)
-preprocessFile dflags src_fn Nothing
+preprocessFile dflags src_fn mb_phase Nothing
= do
- (dflags', hspp_fn) <- preprocess dflags src_fn
+ (dflags', hspp_fn) <- preprocess dflags (src_fn, mb_phase)
buf <- hGetStringBuffer hspp_fn
return (dflags', hspp_fn, buf)
-preprocessFile dflags src_fn (Just (buf, time))
+preprocessFile dflags src_fn mb_phase (Just (buf, time))
= do
-- case we bypass the preprocessing stage?
let
let
needs_preprocessing
- | Unlit _ <- startPhase src_fn = True
+ | Just (Unlit _) <- mb_phase = True
+ | Nothing <- mb_phase, Unlit _ <- startPhase src_fn = True
-- note: local_opts is only required if there's no Unlit phase
| dopt Opt_Cpp dflags' = True
| dopt Opt_Pp dflags' = True
modInfoExports :: ModuleInfo -> [Name]
modInfoExports minf = nameSetToList $! minf_exports minf
+modInfoIsExportedName :: ModuleInfo -> Name -> Bool
+modInfoIsExportedName minf name = elemNameSet name (minf_exports minf)
+
modInfoPrintUnqualified :: ModuleInfo -> Maybe PrintUnqualified
modInfoPrintUnqualified minf = fmap unQualInScope (minf_rdr_env minf)
+modInfoLookupName :: Session -> ModuleInfo -> Name -> IO (Maybe TyThing)
+modInfoLookupName s minf name = withSession s $ \hsc_env -> do
+ case lookupTypeEnv (minf_type_env minf) name of
+ Just tyThing -> return (Just tyThing)
+ Nothing -> do
+ eps <- readIORef (hsc_EPS hsc_env)
+ return $! lookupType (hsc_HPT hsc_env) (eps_PTE eps) name
+
isDictonaryId :: Id -> Bool
isDictonaryId id
= case tcSplitSigmaTy (idType id) of { (tvs, theta, tau) -> isDictTy tau }
projects / ghc-hetmet.git / blobdiff