findPackageModule, -- :: ModuleName -> Bool -> IO FindResult
mkHomeModLocation, -- :: ModuleName -> FilePath -> IO ModLocation
mkHomeModLocation2, -- :: ModuleName -> FilePath -> String -> IO ModLocation
- addHomeModuleToFinder, -- :: Module -> ModLocation -> IO ()
+ addHomeModuleToFinder, -- :: HscEnv -> Module -> ModLocation -> IO ()
- findLinkable, -- :: ModuleName -> ModLocation -> IO (Maybe Linkable)
+ findObjectLinkableMaybe,
+ findObjectLinkable,
cantFindError, -- :: DynFlags -> Module -> FindResult -> SDoc
) where
import Module
import UniqFM ( filterUFM )
-import HscTypes ( Linkable(..), Unlinked(..) )
+import HscTypes
import Packages
-import DriverState
-import DriverUtil
import FastString
import Util
-import CmdLineOpts ( DynFlags(..) )
+import DynFlags ( DynFlags(..), isOneShot, GhcMode(..) )
import Outputable
import DATA_IOREF ( IORef, writeIORef, readIORef )
import Control.Monad
import Maybes ( MaybeErr(..) )
import Data.Maybe ( isNothing )
+import Time ( ClockTime )
type FileExt = String -- Filename extension
-- The Finder provides a thin filesystem abstraction to the rest of
-- the compiler. For a given module, it can tell you where the
-- source, interface, and object files for that module live.
---
+
-- It does *not* know which particular package a module lives in. Use
-- Packages.moduleToPackageConfig for that.
-- -----------------------------------------------------------------------------
-- The finder's cache
-GLOBAL_VAR(finder_cache, emptyModuleEnv, ModuleEnv FinderCacheEntry)
-
-type FinderCacheEntry = (ModLocation, Maybe (PackageConfig,Bool))
-
-- remove all the home modules from the cache; package modules are
-- assumed to not move around during a session.
-flushFinderCache :: IO ()
-flushFinderCache = do
+flushFinderCache :: IORef FinderCache -> IO ()
+flushFinderCache finder_cache = do
fm <- readIORef finder_cache
- writeIORef finder_cache (filterUFM (\(loc,m) -> isNothing m) fm)
+ writeIORef finder_cache $! filterUFM (\(loc,m) -> isNothing m) fm
-addToFinderCache :: Module -> FinderCacheEntry -> IO ()
-addToFinderCache mod_name entry = do
+addToFinderCache :: IORef FinderCache -> Module -> FinderCacheEntry -> IO ()
+addToFinderCache finder_cache mod_name entry = do
fm <- readIORef finder_cache
- writeIORef finder_cache (extendModuleEnv fm mod_name entry)
+ writeIORef finder_cache $! extendModuleEnv fm mod_name entry
-lookupFinderCache :: Module -> IO (Maybe FinderCacheEntry)
-lookupFinderCache mod_name = do
+lookupFinderCache :: IORef FinderCache -> Module -> IO (Maybe FinderCacheEntry)
+lookupFinderCache finder_cache mod_name = do
fm <- readIORef finder_cache
return $! lookupModuleEnv fm mod_name
cached :: Bool
-> (DynFlags -> Module -> IO LocalFindResult)
- -> DynFlags -> Module -> Bool -> IO FindResult
-cached home_allowed wrapped_fn dflags name explicit
+ -> HscEnv -> Module -> Bool -> IO FindResult
+cached home_allowed wrapped_fn hsc_env name explicit
= do { -- First try the cache
- mb_entry <- lookupFinderCache name
+ let cache = hsc_FC hsc_env
+ ; mb_entry <- lookupFinderCache cache name
; case mb_entry of {
Just old_entry -> return (found old_entry) ;
Nothing -> do
{ -- Now try the wrapped function
- mb_entry <- wrapped_fn dflags name
+ mb_entry <- wrapped_fn (hsc_dflags hsc_env) name
; case mb_entry of
Failed paths -> return (NotFound paths)
- Succeeded new_entry -> do { addToFinderCache name new_entry
+ Succeeded new_entry -> do { addToFinderCache cache name new_entry
; return (found new_entry) }
}}}
where
where
pkg_name = packageConfigId pkg
-addHomeModuleToFinder :: Module -> ModLocation -> IO ()
-addHomeModuleToFinder mod loc = addToFinderCache mod (loc, Nothing)
+addHomeModuleToFinder :: HscEnv -> Module -> ModLocation -> IO ()
+addHomeModuleToFinder hsc_env mod loc
+ = addToFinderCache (hsc_FC hsc_env) mod (loc, Nothing)
-- -----------------------------------------------------------------------------
-- The two external entry points
-findModule :: DynFlags -> Module -> Bool -> IO FindResult
+findModule :: HscEnv -> Module -> Bool -> IO FindResult
findModule = cached True findModule'
-findPackageModule :: DynFlags -> Module -> Bool -> IO FindResult
+findPackageModule :: HscEnv -> Module -> Bool -> IO FindResult
findPackageModule = cached False findPackageModule'
-- -----------------------------------------------------------------------------
findHomeModule' :: DynFlags -> Module -> IO LocalFindResult
findHomeModule' dflags mod = do
let home_path = importPaths dflags
- hisuf <- readIORef v_Hi_suf
- mode <- readIORef v_GhcMode
+ hisuf = hiSuf dflags
let
source_exts =
- [ ("hs", mkHomeModLocationSearched mod "hs")
- , ("lhs", mkHomeModLocationSearched mod "lhs")
+ [ ("hs", mkHomeModLocationSearched dflags mod "hs")
+ , ("lhs", mkHomeModLocationSearched dflags mod "lhs")
]
- hi_exts = [ (hisuf, mkHiOnlyModLocation hisuf)
- , (addBootSuffix hisuf, mkHiOnlyModLocation hisuf)
+ hi_exts = [ (hisuf, mkHiOnlyModLocation dflags hisuf)
+ , (addBootSuffix hisuf, mkHiOnlyModLocation dflags hisuf)
]
-- In compilation manager modes, we look for source files in the home
-- package because we can compile these automatically. In one-shot
-- compilation mode we look for .hi and .hi-boot files only.
- exts
- | DoMkDependHS <- mode = source_exts
- | isCompManagerMode mode = source_exts
- | otherwise {-one-shot-} = hi_exts
+ exts | isOneShot (ghcMode dflags) = hi_exts
+ | otherwise = source_exts
searchPathExts home_path mod exts
findPackageModule' dflags mod
= case moduleToPackageConfig dflags mod of
Nothing -> return (Failed [])
- Just pkg_info -> findPackageIface mod pkg_info
+ Just pkg_info -> findPackageIface dflags mod pkg_info
-findPackageIface :: Module -> (PackageConfig,Bool) -> IO LocalFindResult
-findPackageIface mod pkg_info@(pkg_conf, _) = do
- mode <- readIORef v_GhcMode
- tag <- readIORef v_Build_tag
+findPackageIface :: DynFlags -> Module -> (PackageConfig,Bool) -> IO LocalFindResult
+findPackageIface dflags mod pkg_info@(pkg_conf, _) = do
let
+ tag = buildTag dflags
+
-- hi-suffix for packages depends on the build tag.
package_hisuf | null tag = "hi"
| otherwise = tag ++ "_hi"
hi_exts =
[ (package_hisuf,
- mkPackageModLocation pkg_info package_hisuf) ]
+ mkPackageModLocation dflags pkg_info package_hisuf) ]
source_exts =
- [ ("hs", mkPackageModLocation pkg_info package_hisuf)
- , ("lhs", mkPackageModLocation pkg_info package_hisuf)
+ [ ("hs", mkPackageModLocation dflags pkg_info package_hisuf)
+ , ("lhs", mkPackageModLocation dflags pkg_info package_hisuf)
]
-- mkdependHS needs to look for source files in packages too, so
-- that we can make dependencies between package before they have
-- been built.
exts
- | DoMkDependHS <- mode = hi_exts ++ source_exts
- | otherwise = hi_exts
+ | MkDepend <- ghcMode dflags = hi_exts ++ source_exts
+ | otherwise = hi_exts
-- we never look for a .hi-boot file in an external package;
-- .hi-boot files only make sense for the home package.
then do { res <- mk_result; return (Succeeded res) }
else search rest
-mkHomeModLocationSearched :: Module -> FileExt
+mkHomeModLocationSearched :: DynFlags -> Module -> FileExt
-> FilePath -> BaseName -> IO FinderCacheEntry
-mkHomeModLocationSearched mod suff path basename = do
- loc <- mkHomeModLocation2 mod (path ++ '/':basename) suff
+mkHomeModLocationSearched dflags mod suff path basename = do
+ loc <- mkHomeModLocation2 dflags mod (path ++ '/':basename) suff
return (loc, Nothing)
-mkHiOnlyModLocation :: FileExt -> FilePath -> BaseName -> IO FinderCacheEntry
-mkHiOnlyModLocation hisuf path basename = do
- loc <- hiOnlyModLocation path basename hisuf
+mkHiOnlyModLocation :: DynFlags -> FileExt -> FilePath -> BaseName
+ -> IO FinderCacheEntry
+mkHiOnlyModLocation dflags hisuf path basename = do
+ loc <- hiOnlyModLocation dflags path basename hisuf
return (loc, Nothing)
-mkPackageModLocation :: (PackageConfig, Bool) -> FileExt
+mkPackageModLocation :: DynFlags -> (PackageConfig, Bool) -> FileExt
-> FilePath -> BaseName -> IO FinderCacheEntry
-mkPackageModLocation pkg_info hisuf path basename = do
- loc <- hiOnlyModLocation path basename hisuf
+mkPackageModLocation dflags pkg_info hisuf path basename = do
+ loc <- hiOnlyModLocation dflags path basename hisuf
return (loc, Just pkg_info)
-- -----------------------------------------------------------------------------
-- ext
-- The filename extension of the source file (usually "hs" or "lhs").
-mkHomeModLocation :: Module -> FilePath -> IO ModLocation
-mkHomeModLocation mod src_filename = do
+mkHomeModLocation :: DynFlags -> Module -> FilePath -> IO ModLocation
+mkHomeModLocation dflags mod src_filename = do
let (basename,extension) = splitFilename src_filename
- mkHomeModLocation2 mod basename extension
+ mkHomeModLocation2 dflags mod basename extension
-mkHomeModLocation2 :: Module
+mkHomeModLocation2 :: DynFlags
+ -> Module
-> FilePath -- Of source module, without suffix
-> String -- Suffix
-> IO ModLocation
-mkHomeModLocation2 mod src_basename ext = do
+mkHomeModLocation2 dflags mod src_basename ext = do
let mod_basename = dots_to_slashes (moduleUserString mod)
- obj_fn <- mkObjPath src_basename mod_basename
- hi_fn <- mkHiPath src_basename mod_basename
+ obj_fn <- mkObjPath dflags src_basename mod_basename
+ hi_fn <- mkHiPath dflags src_basename mod_basename
return (ModLocation{ ml_hs_file = Just (src_basename ++ '.':ext),
ml_hi_file = hi_fn,
ml_obj_file = obj_fn })
-hiOnlyModLocation :: FilePath -> String -> Suffix -> IO ModLocation
-hiOnlyModLocation path basename hisuf
+hiOnlyModLocation :: DynFlags -> FilePath -> String -> Suffix -> IO ModLocation
+hiOnlyModLocation dflags path basename hisuf
= do let full_basename = path++'/':basename
- obj_fn <- mkObjPath full_basename basename
+ obj_fn <- mkObjPath dflags full_basename basename
return ModLocation{ ml_hs_file = Nothing,
ml_hi_file = full_basename ++ '.':hisuf,
-- Remove the .hi-boot suffix from
-- | Constructs the filename of a .o file for a given source file.
-- Does /not/ check whether the .o file exists
mkObjPath
- :: FilePath -- the filename of the source file, minus the extension
+ :: DynFlags
+ -> FilePath -- the filename of the source file, minus the extension
-> String -- the module name with dots replaced by slashes
-> IO FilePath
-mkObjPath basename mod_basename
- = do odir <- readIORef v_Output_dir
- osuf <- readIORef v_Object_suf
-
- let obj_basename | Just dir <- odir = dir ++ '/':mod_basename
- | otherwise = basename
+mkObjPath dflags basename mod_basename
+ = do let
+ odir = outputDir dflags
+ osuf = objectSuf dflags
+
+ obj_basename | Just dir <- odir = dir ++ '/':mod_basename
+ | otherwise = basename
return (obj_basename ++ '.':osuf)
-- | Constructs the filename of a .hi file for a given source file.
-- Does /not/ check whether the .hi file exists
mkHiPath
- :: FilePath -- the filename of the source file, minus the extension
+ :: DynFlags
+ -> FilePath -- the filename of the source file, minus the extension
-> String -- the module name with dots replaced by slashes
-> IO FilePath
-mkHiPath basename mod_basename
- = do hidir <- readIORef v_Hi_dir
- hisuf <- readIORef v_Hi_suf
+mkHiPath dflags basename mod_basename
+ = do let
+ hidir = hiDir dflags
+ hisuf = hiSuf dflags
- let hi_basename | Just dir <- hidir = dir ++ '/':mod_basename
- | otherwise = basename
+ hi_basename | Just dir <- hidir = dir ++ '/':mod_basename
+ | otherwise = basename
return (hi_basename ++ '.':hisuf)
-- findLinkable isn't related to the other stuff in here,
-- but there's no other obvious place for it
-findLinkable :: Module -> ModLocation -> IO (Maybe Linkable)
-findLinkable mod locn
+findObjectLinkableMaybe :: Module -> ModLocation -> IO (Maybe Linkable)
+findObjectLinkableMaybe mod locn
= do let obj_fn = ml_obj_file locn
- obj_exist <- doesFileExist obj_fn
- if not obj_exist
- then return Nothing
- else
- do let stub_fn = case splitFilename3 obj_fn of
- (dir, base, ext) -> dir ++ "/" ++ base ++ "_stub.o"
- stub_exist <- doesFileExist stub_fn
- obj_time <- getModificationTime obj_fn
- if stub_exist
- then return (Just (LM obj_time mod [DotO obj_fn, DotO stub_fn]))
- else return (Just (LM obj_time mod [DotO obj_fn]))
+ maybe_obj_time <- modificationTimeIfExists obj_fn
+ case maybe_obj_time of
+ Nothing -> return Nothing
+ Just obj_time -> liftM Just (findObjectLinkable mod obj_fn obj_time)
+
+-- Make an object linkable when we know the object file exists, and we know
+-- its modification time.
+findObjectLinkable :: Module -> FilePath -> ClockTime -> IO Linkable
+findObjectLinkable mod obj_fn obj_time = do
+ let stub_fn = case splitFilename3 obj_fn of
+ (dir, base, ext) -> dir ++ "/" ++ base ++ "_stub.o"
+ stub_exist <- doesFileExist stub_fn
+ if stub_exist
+ then return (LM obj_time mod [DotO obj_fn, DotO stub_fn])
+ else return (LM obj_time mod [DotO obj_fn])
-- -----------------------------------------------------------------------------
-- Utils
projects / ghc-hetmet.git / blobdiff