findObjectLinkableMaybe,
findObjectLinkable,
- cantFindError,
+ cannotFindModule,
+ cannotFindInterface,
) where
#include "HsVersions.h"
import UniqFM
import Maybes ( expectJust )
-import DATA_IOREF ( IORef, writeIORef, readIORef, modifyIORef )
-
+import Data.IORef ( IORef, writeIORef, readIORef, modifyIORef )
import Data.List
import System.Directory
import System.IO
import Control.Monad
-import Time ( ClockTime )
+import System.Time ( ClockTime )
type FileExt = String -- Filename extension
this `orIfNotFound` or_this = do
res <- this
case res of
- NotFound here -> do
+ NotFound here _ -> do
res2 <- or_this
case res2 of
- NotFound or_here -> return (NotFound (here ++ or_here))
+ NotFound or_here pkg -> return (NotFound (here ++ or_here) pkg)
_other -> return res2
_other -> return res
findExposedPackageModule :: HscEnv -> ModuleName -> IO FindResult
findExposedPackageModule hsc_env mod_name
-- not found in any package:
- | null found = return (NotFound [])
+ | null found = return (NotFound [] Nothing)
-- found in just one exposed package:
| [(pkg_conf, _)] <- found_exposed
= let pkgid = mkPackageId (package pkg_conf) in
exts | isOneShot (ghcMode dflags) = hi_exts
| otherwise = source_exts
in
+
+ -- special case for GHC.Prim; we won't find it in the filesystem.
+ -- This is important only when compiling the base package (where GHC.Prim
+ -- is a home module).
+ if mod == gHC_PRIM
+ then return (Found (error "GHC.Prim ModLocation") mod)
+ else
+
searchPathExts home_path mod exts
file = base `joinFileExt` ext
]
- search [] = return (NotFound (map fst to_search))
+ search [] = return (NotFound (map fst to_search) (Just (modulePackageId mod)))
search ((file, mk_result) : rest) = do
b <- doesFileExist file
if b
-- -----------------------------------------------------------------------------
-- Error messages
-cantFindError :: DynFlags -> ModuleName -> FindResult -> SDoc
-cantFindError dflags mod_name (FoundMultiple pkgs)
- = hang (ptext SLIT("Cannot import") <+> quotes (ppr mod_name) <> colon) 2 (
+cannotFindModule :: DynFlags -> ModuleName -> FindResult -> SDoc
+cannotFindModule = cantFindErr SLIT("Could not find module")
+
+cannotFindInterface :: DynFlags -> ModuleName -> FindResult -> SDoc
+cannotFindInterface = cantFindErr SLIT("Failed to load interface for")
+
+cantFindErr cannot_find dflags mod_name (FoundMultiple pkgs)
+ = hang (ptext cannot_find <+> quotes (ppr mod_name) <> colon) 2 (
sep [ptext SLIT("it was found in multiple packages:"),
hsep (map (text.packageIdString) pkgs)]
)
-cantFindError dflags mod_name find_result
- = hang (ptext SLIT("Could not find module") <+> quotes (ppr mod_name) <> colon)
+cantFindErr cannot_find dflags mod_name find_result
+ = hang (ptext cannot_find <+> quotes (ppr mod_name) <> colon)
2 more_info
where
more_info
-> ptext SLIT("no package matching") <+> ppr pkg <+>
ptext SLIT("was found")
- NotFound files
+ NotFound files mb_pkg
| null files
-> ptext SLIT("it is not a module in the current program, or in any known package.")
- | verbosity dflags < 3
- -> ptext SLIT("use -v to see a list of the files searched for")
- | otherwise
- -> hang (ptext SLIT("locations searched:"))
- 2 (vcat (map text files))
+ | Just pkg <- mb_pkg, pkg /= thisPackage dflags, build_tag /= ""
+ -> let
+ build = if build_tag == "p" then "profiling"
+ else "\"" ++ build_tag ++ "\""
+ in
+ ptext SLIT("Perhaps you haven't installed the ") <> text build <>
+ ptext SLIT(" libraries for package ") <> ppr pkg <> char '?' $$
+ not_found files
+
+ | otherwise
+ -> not_found files
NotFoundInPackage pkg
-> ptext SLIT("it is not in package") <+> ppr pkg
_ -> panic "cantFindErr"
+
+ build_tag = buildTag dflags
+
+ not_found files
+ | verbosity dflags < 3
+ = ptext SLIT("Use -v to see a list of the files searched for.")
+ | otherwise
+ = hang (ptext SLIT("locations searched:")) 2 (vcat (map text files))
\end{code}