compiled:
import B <n> ;
to record the fact that A does import B indirectly. This is used to decide
-to look to look for B.hi rather than B.hi-boot when compiling a module that
+to look for B.hi rather than B.hi-boot when compiling a module that
imports A. This line says that A imports B, but uses nothing in it.
So we'll get an early bale-out when compiling A if B's version changes.
haul in all the unfoldings for B, in case the module that imports A *is*
compiled with -O. I think this is the case.]
+SimonM [30/11/2007]: I believe the above is all out of date; the
+current implementation doesn't do it this way. Instead, when any of
+the dependencies of a declaration changes, the version of the
+declaration itself changes.
\begin{code}
#include "HsVersions.h"
import PackageConfig hiding ( Version )
import Outputable
import BasicTypes hiding ( SuccessFlag(..) )
-import UniqFM
+import LazyUniqFM
import Util hiding ( eqListBy )
import FiniteMap
import FastString
import Control.Monad
import Data.List
import Data.IORef
+import System.FilePath
\end{code}
mi_fix_fn = mkIfaceFixCache fixities }
-- Add version information
- ; ext_ver_fn = mkParentVerFun hsc_env eps
+ ; ext_ver_fn = mkParentVerFun hsc_env eps
; (new_iface, no_change_at_all, pp_diffs, pp_orphs)
= {-# SCC "versioninfo" #-}
addVersionInfo ext_ver_fn maybe_old_iface
-----------------------------
writeIfaceFile :: DynFlags -> ModLocation -> ModIface -> IO ()
writeIfaceFile dflags location new_iface
- = do createDirectoryHierarchy (directoryOf hi_file_path)
+ = do createDirectoryHierarchy (takeDirectory hi_file_path)
writeBinIface dflags hi_file_path new_iface
where hi_file_path = ml_hi_file location
-- return True if an external name has changed
name_changed :: Name -> Bool
name_changed nm
+ | isWiredInName nm -- Wired-in things don't get into interface
+ = False -- files and hence don't get into the ver_fn
| Just ents <- lookupUFM usg_modmap (moduleName mod),
Just v <- lookupUFM ents parent_occ
= v < new_version
usg_modmap = listToUFM [ (usg_name usg, listToUFM (usg_entities usg))
| usg <- old_usages ]
- get_local_eq_info :: GenIfaceEq NameSet -> GenIfaceEq OccSet
+ get_local_eq_info :: GenIfaceEq Name -> GenIfaceEq OccName
get_local_eq_info Equal = Equal
get_local_eq_info NotEqual = NotEqual
get_local_eq_info (EqBut ns) = foldNameSet f Equal ns
where (occs, iface_eqs) = unzip pairs
add_changes so_far other = so_far
-type OccIfaceEq = GenIfaceEq OccSet
+type OccIfaceEq = GenIfaceEq OccName
changedWrt :: OccSet -> OccIfaceEq -> Bool
changedWrt so_far Equal = False
check_old_iface hsc_env mod_summary source_unchanged maybe_iface
= do -- CHECK WHETHER THE SOURCE HAS CHANGED
- { ifM (not source_unchanged)
+ { when (not source_unchanged)
(traceHiDiffs (nest 4 (text "Source file changed or recompilation check turned off")))
-- If the source has changed and we're in interactive mode, avoid reading
-- We have got the old iface; check its versions
{ traceIf (text "Read the interface file" <+> text iface_path)
; recomp <- checkVersions hsc_env source_unchanged mod_summary iface
- ; returnM (recomp, Just iface)
+ ; return (recomp, Just iface)
}}}}}
\end{code}
-> IfG RecompileRequired
checkVersions hsc_env source_unchanged mod_summary iface
| not source_unchanged
- = returnM outOfDate
+ = return outOfDate
| otherwise
= do { traceHiDiffs (text "Considering whether compilation is required for" <+>
ppr (mi_module iface) <> colon)
where f m rest = do b <- m; if b then return True else rest
dep_missing (L _ mod) = do
- find_res <- ioToIOEnv $ findImportedModule hsc_env mod Nothing
+ find_res <- liftIO $ findImportedModule hsc_env mod Nothing
case find_res of
Found _ mod
| pkg == this_pkg
usg_rules = old_rule_vers,
usg_exports = maybe_old_export_vers,
usg_entities = old_decl_vers })
- = -- Load the imported interface is possible
- let
- doc_str = sep [ptext SLIT("need version info for"), ppr mod_name]
- in
- traceHiDiffs (text "Checking usages for module" <+> ppr mod_name) `thenM_`
+ = do -- Load the imported interface is possible
+ let doc_str = sep [ptext SLIT("need version info for"), ppr mod_name]
+ traceHiDiffs (text "Checking usages for module" <+> ppr mod_name)
- let
- mod = mkModule this_pkg mod_name
- in
- loadInterface doc_str mod ImportBySystem `thenM` \ mb_iface ->
+ let mod = mkModule this_pkg mod_name
+
+ mb_iface <- loadInterface doc_str mod ImportBySystem
-- Load the interface, but don't complain on failure;
-- Instead, get an Either back which we can test
new_rule_vers = mi_rule_vers iface
in
-- CHECK MODULE
- checkModuleVersion old_mod_vers new_mod_vers `thenM` \ recompile ->
+ checkModuleVersion old_mod_vers new_mod_vers >>= \ recompile ->
if not recompile then
- returnM upToDate
+ return upToDate
else
-- CHECK EXPORT LIST
else
-- CHECK ITEMS ONE BY ONE
- checkList [checkEntityUsage new_decl_vers u | u <- old_decl_vers] `thenM` \ recompile ->
+ checkList [checkEntityUsage new_decl_vers u | u <- old_decl_vers] >>= \ recompile ->
if recompile then
- returnM outOfDate -- This one failed, so just bail out now
+ return outOfDate -- This one failed, so just bail out now
else
up_to_date (ptext SLIT(" Great! The bits I use are up to date"))
}
out_of_date (sep [ptext SLIT("No longer exported:"), ppr name])
Just (_, new_vers) -- It's there, but is it up to date?
- | new_vers == old_vers -> traceHiDiffs (text " Up to date" <+> ppr name <+> parens (ppr new_vers)) `thenM_`
- returnM upToDate
+ | new_vers == old_vers -> do traceHiDiffs (text " Up to date" <+> ppr name <+> parens (ppr new_vers))
+ return upToDate
| otherwise -> out_of_date_vers (ptext SLIT(" Out of date:") <+> ppr name)
old_vers new_vers
-up_to_date msg = traceHiDiffs msg `thenM_` returnM upToDate
-out_of_date msg = traceHiDiffs msg `thenM_` returnM outOfDate
+up_to_date msg = traceHiDiffs msg >> return upToDate
+out_of_date msg = traceHiDiffs msg >> return outOfDate
out_of_date_vers msg old_vers new_vers
= out_of_date (hsep [msg, ppr old_vers, ptext SLIT("->"), ppr new_vers])
----------------------
checkList :: [IfG RecompileRequired] -> IfG RecompileRequired
-- This helper is used in two places
-checkList [] = returnM upToDate
-checkList (check:checks) = check `thenM` \ recompile ->
- if recompile then
- returnM outOfDate
- else
- checkList checks
+checkList [] = return upToDate
+checkList (check:checks) = do recompile <- check
+ if recompile
+ then return outOfDate
+ else checkList checks
\end{code}
%************************************************************************
projects / ghc-hetmet.git / blobdiff