X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fghci%2FDebugger.hs;h=19a9e999ae70808d650b8bd1396bcc2bfca300cb;hb=67f8c4685920582ad82000e7840a1ffe91682f35;hp=fdab651b4506c84a24c07cd6025d34c60d37b653;hpb=8bc615fdb45b8e3f2f3ef2167bbb379bf619aab2;p=ghc-hetmet.git diff --git a/compiler/ghci/Debugger.hs b/compiler/ghci/Debugger.hs index fdab651..19a9e99 100644 --- a/compiler/ghci/Debugger.hs +++ b/compiler/ghci/Debugger.hs @@ -34,16 +34,19 @@ import GhciMonad import PackageConfig import Outputable +import Pretty ( Mode(..), showDocWith ) import ErrUtils import FastString import SrcLoc import Util +import Maybes import Control.Exception import Control.Monad import qualified Data.Map as Map import Data.Array.Unboxed -import Data.Traversable ( traverse ) +import Data.Array.Base +import Data.List import Data.Typeable ( Typeable ) import Data.Maybe import Data.IORef @@ -53,16 +56,270 @@ import GHC.Exts #include "HsVersions.h" +------------------------------------- +-- | The :print & friends commands +------------------------------------- +pprintClosureCommand :: Bool -> Bool -> String -> GHCi () +pprintClosureCommand bindThings force str = do + cms <- getSession + newvarsNames <- io$ do + uniques <- liftM uniqsFromSupply (mkSplitUniqSupply 'q') + return$ map (\u-> (mkSysTvName u (mkFastString "a"))) uniques + mb_ids <- io$ mapM (cleanUp cms newvarsNames) (words str) + new_ids <- mapM (io . go cms) (catMaybes mb_ids) + io$ updateIds cms new_ids + where + -- Find the Id, clean up 'Unknowns' + cleanUp :: Session -> [Name] -> String -> IO (Maybe Id) + cleanUp cms newNames str = do + tythings <- GHC.parseName cms str >>= mapM (GHC.lookupName cms) + return$ listToMaybe (map (stripUnknowns newNames) + [ i | Just (AnId i) <- tythings]) + + -- Do the obtainTerm--bindSuspensions-refineIdType dance + -- Warning! This function got a good deal of side-effects + go :: Session -> Id -> IO Id + go cms id = do + Just term <- obtainTerm cms force id + term' <- if not bindThings then return term + else bindSuspensions cms term + showterm <- pprTerm cms term' + unqual <- GHC.getPrintUnqual cms + let showSDocForUserOneLine unqual doc = + showDocWith LeftMode (doc (mkErrStyle unqual)) + (putStrLn . showSDocForUserOneLine unqual) (ppr id <+> char '=' <+> showterm) + -- Before leaving, we compare the type obtained to see if it's more specific + -- Note how we need the Unknown-clear type returned by obtainTerm + let Just reconstructedType = termType term + new_type <- instantiateTyVarsToUnknown cms + (mostSpecificType (idType id) reconstructedType) + return (setIdType id new_type) + + updateIds :: Session -> [Id] -> IO () + updateIds (Session ref) new_ids = do + hsc_env <- readIORef ref + let ictxt = hsc_IC hsc_env + type_env = ic_type_env ictxt + filtered_type_env = delListFromNameEnv type_env (map idName new_ids) + new_type_env = extendTypeEnvWithIds filtered_type_env new_ids + new_ic = ictxt {ic_type_env = new_type_env } + writeIORef ref (hsc_env {hsc_IC = new_ic }) + +isMoreSpecificThan :: Type -> Type -> Bool +ty `isMoreSpecificThan` ty1 + | Just subst <- tcUnifyTys bindOnlyTy1 [repType' ty] [repType' ty1] + , substFiltered <- filter (not.isTyVarTy) . varEnvElts . getTvSubstEnv $ subst + , not . null $ substFiltered + , all (flip notElemTvSubst subst) ty_vars + = True + | otherwise = False + where bindOnlyTy1 tyv | tyv `elem` ty_vars = AvoidMe + | otherwise = BindMe + ty_vars = varSetElems$ tyVarsOfType ty + +mostSpecificType ty1 ty2 | ty1 `isMoreSpecificThan` ty2 = ty1 + | otherwise = ty2 + +-- | Give names, and bind in the interactive environment, to all the suspensions +-- included (inductively) in a term +bindSuspensions :: Session -> Term -> IO Term +bindSuspensions cms@(Session ref) t = do + hsc_env <- readIORef ref + inScope <- GHC.getBindings cms + let ictxt = hsc_IC hsc_env + rn_env = ic_rn_local_env ictxt + type_env = ic_type_env ictxt + prefix = "_t" + alreadyUsedNames = map (occNameString . nameOccName . getName) inScope + availNames = map ((prefix++) . show) [1..] \\ alreadyUsedNames + availNames_var <- newIORef availNames + (t', stuff) <- foldTerm (nameSuspensionsAndGetInfos availNames_var) t + let (names, tys, hvals) = unzip3 stuff + concrete_tys <- mapM (instantiateTyVarsToUnknown cms) tys + let ids = [ mkGlobalId VanillaGlobal name ty vanillaIdInfo + | (name,ty) <- zip names concrete_tys] + new_type_env = extendTypeEnvWithIds type_env ids + new_rn_env = extendLocalRdrEnv rn_env names + new_ic = ictxt { ic_rn_local_env = new_rn_env, + ic_type_env = new_type_env } + extendLinkEnv (zip names hvals) + writeIORef ref (hsc_env {hsc_IC = new_ic }) + return t' + where + +-- Processing suspensions. Give names and recopilate info + nameSuspensionsAndGetInfos :: IORef [String] -> TermFold (IO (Term, [(Name,Type,HValue)])) + nameSuspensionsAndGetInfos freeNames = TermFold + { + fSuspension = doSuspension freeNames + , fTerm = \ty dc v tt -> do + tt' <- sequence tt + let (terms,names) = unzip tt' + return (Term ty dc v terms, concat names) + , fPrim = \ty n ->return (Prim ty n,[]) + } + doSuspension freeNames ct mb_ty hval Nothing = do + name <- atomicModifyIORef freeNames (\x->(tail x, head x)) + n <- newGrimName cms name + let ty' = fromMaybe (error "unexpected") mb_ty + return (Suspension ct mb_ty hval (Just n), [(n,ty',hval)]) + + +-- A custom Term printer to enable the use of Show instances +pprTerm cms@(Session ref) = customPrintTerm customPrint + where + customPrint = \p-> customPrintShowable : customPrintTermBase p + customPrintShowable t@Term{ty=ty, dc=dc, val=val} = do + let hasType = isEmptyVarSet (tyVarsOfType ty) -- redundant + isEvaled = isFullyEvaluatedTerm t + if not isEvaled -- || not hasType + then return Nothing + else do + hsc_env <- readIORef ref + dflags <- GHC.getSessionDynFlags cms + do + (new_env, bname) <- bindToFreshName hsc_env ty "showme" + writeIORef ref (new_env) + let noop_log _ _ _ _ = return () + expr = "show " ++ showSDoc (ppr bname) + GHC.setSessionDynFlags cms dflags{log_action=noop_log} + mb_txt <- withExtendedLinkEnv [(bname, val)] + (GHC.compileExpr cms expr) + case mb_txt of + Just txt -> return . Just . text . unsafeCoerce# $ txt + Nothing -> return Nothing + `finally` do + writeIORef ref hsc_env + GHC.setSessionDynFlags cms dflags + + bindToFreshName hsc_env ty userName = do + name <- newGrimName cms userName + let ictxt = hsc_IC hsc_env + rn_env = ic_rn_local_env ictxt + type_env = ic_type_env ictxt + id = mkGlobalId VanillaGlobal name ty vanillaIdInfo + new_type_env = extendTypeEnv type_env (AnId id) + new_rn_env = extendLocalRdrEnv rn_env [name] + new_ic = ictxt { ic_rn_local_env = new_rn_env, + ic_type_env = new_type_env } + return (hsc_env {hsc_IC = new_ic }, name) + +-- Create new uniques and give them sequentially numbered names +-- newGrimName :: Session -> String -> IO Name +newGrimName cms userName = do + us <- mkSplitUniqSupply 'b' + let unique = uniqFromSupply us + occname = mkOccName varName userName + name = mkInternalName unique occname noSrcLoc + return name + +---------------------------------------------------------------------------- +-- | Replace all the tyvars in a Term with the opaque type GHC.Base.Unknown +---------------------------------------------------------------------------- +instantiateTyVarsToUnknown :: Session -> Type -> IO Type +instantiateTyVarsToUnknown cms ty +-- We have a GADT, so just fix its tyvars + | Just (tycon, args) <- splitTyConApp_maybe ty + , tycon /= funTyCon + , isGADT tycon + = mapM fixTyVars args >>= return . mkTyConApp tycon +-- We have a regular TyCon, so map recursively to its args + | Just (tycon, args) <- splitTyConApp_maybe ty + , tycon /= funTyCon + = do unknownTyVar <- unknownTV + args' <- mapM (instantiateTyVarsToUnknown cms) args + return$ mkTyConApp tycon args' +-- we have a tyvar of kind * + | Just tyvar <- getTyVar_maybe ty + , ([],_) <- splitKindFunTys (tyVarKind tyvar) + = unknownTV +-- we have a higher kind tyvar, so insert an unknown of the appropriate kind + | Just tyvar <- getTyVar_maybe ty + , (args,_) <- splitKindFunTys (tyVarKind tyvar) + = liftM mkTyConTy $ unknownTC !! length args +-- Base case + | otherwise = return ty + + where unknownTV = do + Just (ATyCon unknown_tc) <- lookupName cms unknownTyConName + return$ mkTyConTy unknown_tc + unknownTC = [undefined, unknownTC1, unknownTC2, unknownTC3] + unknownTC1 = do + Just (ATyCon unknown_tc) <- lookupName cms unknown1TyConName + return unknown_tc + unknownTC2 = do + Just (ATyCon unknown_tc) <- lookupName cms unknown2TyConName + return unknown_tc + unknownTC3 = do + Just (ATyCon unknown_tc) <- lookupName cms unknown3TyConName + return unknown_tc +-- isGADT ty | pprTrace' "isGADT" (ppr ty <> colon <> ppr(isGadtSyntaxTyCon ty)) False = undefined + isGADT tc | Just dcs <- tyConDataCons_maybe tc = any (not . null . dataConEqSpec) dcs + | otherwise = False + fixTyVars ty + | Just (tycon, args) <- splitTyConApp_maybe ty + = mapM fixTyVars args >>= return . mkTyConApp tycon +-- Fix the tyvar so that the interactive environment doesn't choke on it TODO + | Just tv <- getTyVar_maybe ty = return ty --TODO + | otherwise = return ty + +-- | The inverse function. Strip the GHC.Base.Unknowns in the type of the id, they correspond to tyvars. The caller must provide an infinite list of fresh names +stripUnknowns :: [Name] -> Id -> Id +stripUnknowns names id = setIdType id . fst . go names . idType + $ id + where + go tyvarsNames@(v:vv) ty + | Just (ty1,ty2) <- splitFunTy_maybe ty = let + (ty1',vv') = go tyvarsNames ty1 + (ty2',vv'')= go vv' ty2 + in (mkFunTy ty1' ty2', vv'') + | Just (ty1,ty2) <- splitAppTy_maybe ty = let + (ty1',vv') = go tyvarsNames ty1 + (ty2',vv'')= go vv' ty2 + in (mkAppTy ty1' ty2', vv'') + | Just (tycon, args) <- splitTyConApp_maybe ty + , Just (tycon', vv') <- (fixTycon tycon tyvarsNames) + , (args',vv'') <- foldr (\arg (aa,vv) -> let (arg',vv') = go vv' arg + in (arg':aa,vv')) + ([],vv') args + = (mkAppTys tycon' args',vv'') + | Just (tycon, args) <- splitTyConApp_maybe ty + , (args',vv') <- foldr (\arg (aa,vv) -> let (arg',vv') = go vv' arg + in (arg':aa,vv')) + ([],tyvarsNames) args + = (mkTyConApp tycon args',vv') + | otherwise = (ty, tyvarsNames) + where fixTycon tycon (v:vv) = do + k <- lookup (tyConName tycon) kinds + return (mkTyVarTy$ mkTyVar v k, vv) + kinds = [ (unknownTyConName, liftedTypeKind) + , (unknown1TyConName, kind1) + , (unknown2TyConName, kind2) + , (unknown3TyConName, kind3)] + kind1 = mkArrowKind liftedTypeKind liftedTypeKind + kind2 = mkArrowKind kind1 liftedTypeKind + kind3 = mkArrowKind kind2 liftedTypeKind +stripUnknowns _ id = id + ----------------------------- -- | The :breakpoint command ----------------------------- -bkptOptions :: String -> GHCi () +bkptOptions :: String -> GHCi Bool +bkptOptions "continue" = -- We want to quit if in an inferior session + liftM not isTopLevel +bkptOptions "stop" = do + inside_break <- liftM not isTopLevel + when inside_break $ throwDyn StopChildSession + return False + bkptOptions cmd = do dflags <- getDynFlags bt <- getBkptTable - bkptOptions' (words cmd) bt + sess <- getSession + bkptOptions' sess (words cmd) bt + return False where - bkptOptions' ["list"] bt = do + bkptOptions' _ ["list"] bt = do let msgs = [ ppr mod <+> colon <+> ppr coords | (mod,site) <- btList bt , let coords = getSiteCoords bt mod site] @@ -72,33 +329,37 @@ bkptOptions cmd = do else vcat num_msgs io$ putStrLn msg - bkptOptions' ["stop"] bt = do - inside_break <- liftM not isTopLevel - when inside_break $ throwDyn StopChildSession + bkptOptions' s ("add":cmds) bt + | [line] <- cmds + , [(lineNum,[])] <- reads line + = do (toplevel,_) <- io$ GHC.getContext s + case toplevel of + (m:_) -> handleAdd (\mod->addBkptByLine mod lineNum) m + [] -> throwDyn $ CmdLineError $ "No module loaded in debugging mode" - bkptOptions' ("add":cmds) bt | [mod_name,line]<- cmds , [(lineNum,[])] <- reads line - = handleAdd mod_name $ (\mod->addBkptByLine mod lineNum) + = io(GHC.findModule s (GHC.mkModuleName mod_name) Nothing) >>= + handleAdd (\mod->addBkptByLine mod lineNum) | [mod_name,line,col] <- cmds - = handleAdd mod_name $ (\mod->addBkptByCoord mod (read line, read col)) + = io(GHC.findModule s (GHC.mkModuleName mod_name) Nothing) >>= + handleAdd (\mod->addBkptByCoord mod (read line, read col)) | otherwise = throwDyn $ CmdLineError $ "syntax: :breakpoint add Module line [col]" where - handleAdd mod_name f = do - sess <- getSession - dflags <- getDynFlags - mod <- io$ GHC.findModule sess (GHC.mkModuleName mod_name) Nothing - ghciHandleDyn (handleBkptEx mod) $ - case f mod bt of - (newTable, site) -> do - setBkptTable newTable - io (putStrLn ("Breakpoint set at " ++ - show (getSiteCoords newTable mod site))) - - bkptOptions' ("del":cmds) bt + handleAdd f mod = + either + (handleBkptEx s mod) + (\(newTable, site) -> do + setBkptTable newTable + let (x,y) = getSiteCoords newTable mod site + io (putStrLn ("Breakpoint set at " ++ showSDoc (ppr mod) + ++ ':' : show x ++ ':' : show y))) + (f mod bt) + + bkptOptions' s ("del":cmds) bt | [i'] <- cmds , [(i,[])] <- reads i' , bkpts <- btList bt @@ -121,23 +382,29 @@ bkptOptions cmd = do = handleDel mod $ delBkptByCoord mod (lineNum, colNum) | otherwise = throwDyn $ CmdLineError $ - "syntax: :breakpoint del (breakpoint # | Module line [col])" + "syntax: :breakpoint del (breakpoint # | [Module] line [col])" where delMsg = "Breakpoint deleted" - handleDel mod f = ghciHandleDyn (handleBkptEx mod) $ do - modifyBkptTable f - newTable <- getBkptTable - sess <- getSession - dflags <- getDynFlags - io$ putStrLn delMsg - - bkptOptions' _ _ = throwDyn $ CmdLineError $ - "syntax: :breakpoint (list|stop|add|del)" - - handleBkptEx :: Module -> Debugger.BkptException -> a - handleBkptEx _ NoBkptFound = error "No suitable breakpoint site found" --TODO Automatically add to the next suitable line - handleBkptEx _ NotNeeded = error "Nothing to do" - handleBkptEx m NotHandled = error$ "Module " ++ showSDoc (ppr m) ++ " was not loaded under debugging mode. Enable debugging mode and reload it" + handleDel mod f = either (handleBkptEx s mod) + (\newtable-> setBkptTable newtable >> io (putStrLn delMsg)) + (f bt) + + bkptOptions' _ _ _ = throwDyn $ CmdLineError $ + "syntax: :breakpoint (list|continue|stop|add|del)" + +-- Error messages +-- handleBkptEx :: Session -> Module -> Debugger.BkptException -> a + handleBkptEx s m NotHandled = io$ do + isInterpreted <- findModSummary m >>= isModuleInterpreted s + if isInterpreted + then error$ "Module " ++ showSDoc (ppr m) ++ " was not loaded under debugging mode.\n" + ++ "Enable debugging mode with -fdebugging (and reload your module)" + else error$ "Module " ++ showSDoc (ppr m) ++ " was loaded in compiled (.o) mode.\n" + ++ "You must load a module in interpreted mode and with -fdebugging on to debug it." + where findModSummary m = do + mod_graph <- getModuleGraph s + return$ head [ modsum | modsum <- mod_graph, ms_mod modsum == m] + handleBkptEx _ _ e = error (show e) ------------------------- -- Breakpoint Tables @@ -149,27 +416,32 @@ data BkptTable a = BkptTable { -- | A list of lines, each line can have zero or more sites, which are annotated with a column number , sites :: Map.Map a [[(SiteNumber, Int)]] } + deriving Show sitesOf :: Ord a => BkptTable a -> a -> Maybe [[(SiteNumber, Int)]] sitesOf bt fn = Map.lookup fn (sites bt) bkptsOf bt fn = Map.lookup fn (breakpoints bt) --- The functions for manipulating BkptTables do throw exceptions -data BkptException = - NotHandled +data BkptError = + NotHandled -- Trying to manipulate a element not handled by this BkptTable | NoBkptFound | NotNeeded -- Used when a breakpoint was already enabled deriving Typeable +instance Show BkptError where + show NoBkptFound = "No suitable breakpoint site found" + show NotNeeded = "Nothing to do" + show NotHandled = "BkptTable: Element not controlled by this table" + emptyBkptTable :: Ord a => BkptTable a addModule :: Ord a => a -> [(SiteNumber,Coord)] -> BkptTable a -> BkptTable a -- | Lines start at index 1 -addBkptByLine :: Ord a => a -> Int -> BkptTable a -> (BkptTable a, SiteNumber) -addBkptByCoord :: Ord a => a -> Coord -> BkptTable a -> (BkptTable a, SiteNumber) -delBkptByLine :: Ord a => a -> Int -> BkptTable a -> BkptTable a -delBkptBySite :: Ord a => a -> SiteNumber -> BkptTable a -> BkptTable a -delBkptByCoord :: Ord a => a -> Coord -> BkptTable a -> BkptTable a +addBkptByLine :: Ord a => a -> Int -> BkptTable a -> Either BkptError (BkptTable a, SiteNumber) +addBkptByCoord :: Ord a => a -> Coord -> BkptTable a -> Either BkptError (BkptTable a, SiteNumber) +delBkptByLine :: Ord a => a -> Int -> BkptTable a -> Either BkptError (BkptTable a) +delBkptBySite :: Ord a => a -> SiteNumber -> BkptTable a -> Either BkptError (BkptTable a) +delBkptByCoord :: Ord a => a -> Coord -> BkptTable a -> Either BkptError (BkptTable a) isBkptEnabled :: Ord a => BkptTable a -> BkptLocation a -> Bool btElems :: Ord a => BkptTable a -> [(a, [SiteNumber])] @@ -183,53 +455,53 @@ addBkptByLine a i bt | Just lines <- sitesOf bt a , Just bkptsArr <- bkptsOf bt a , i < length lines - = case lines!!i of - [] -> throwDyn NoBkptFound - (x:_) -> let (siteNum,col) = x - wasAlreadyOn = bkptsArr ! siteNum - newArr = bkptsArr // [(siteNum, True)] - newTable = Map.insert a newArr (breakpoints bt) + = case [line | line <- drop i lines, not (null line)] of + ((x:_):_) -> let (siteNum,col) = x + wasAlreadyOn = bkptsArr ! siteNum + newArr = bkptsArr // [(siteNum, True)] + newTable = Map.insert a newArr (breakpoints bt) in if wasAlreadyOn - then throwDyn NotNeeded - else (bt{breakpoints=newTable}, siteNum) + then Left NotNeeded + else Right (bt{breakpoints=newTable}, siteNum) + otherwise -> Left NoBkptFound | Just sites <- sitesOf bt a - = throwDyn NoBkptFound - | otherwise = throwDyn NotHandled + = Left NoBkptFound + | otherwise = Left NotHandled addBkptByCoord a (r,c) bt | Just lines <- sitesOf bt a , Just bkptsArr <- bkptsOf bt a , r < length lines = case [ (sn,col) | (sn,col)<-lines!!r, col>=c] of - [] -> throwDyn NoBkptFound + [] -> Left NoBkptFound (x:_) -> let (siteNum, col) = x wasAlreadyOn = bkptsArr ! siteNum newArr = bkptsArr // [(siteNum, True)] newTable = Map.insert a newArr (breakpoints bt) in if wasAlreadyOn - then throwDyn NotNeeded - else (bt{breakpoints=newTable}, siteNum) + then Left NotNeeded + else Right (bt{breakpoints=newTable}, siteNum) | Just sites <- sitesOf bt a - = throwDyn NoBkptFound - | otherwise = throwDyn NotHandled + = Left NoBkptFound + | otherwise = Left NotHandled delBkptBySite a i bt | Just bkptsArr <- bkptsOf bt a , not (inRange (bounds bkptsArr) i) - = throwDyn NoBkptFound + = Left NoBkptFound | Just bkptsArr <- bkptsOf bt a , bkptsArr ! i -- Check that there was a enabled bkpt here , newArr <- bkptsArr // [(i,False)] , newTable <- Map.insert a newArr (breakpoints bt) - = bt {breakpoints=newTable} + = Right bt {breakpoints=newTable} | Just sites <- sitesOf bt a - = throwDyn NotNeeded + = Left NotNeeded - | otherwise = throwDyn NotHandled + | otherwise = Left NotHandled delBkptByLine a l bt | Just sites <- sitesOf bt a @@ -237,9 +509,9 @@ delBkptByLine a l bt = delBkptBySite a site bt | Just sites <- sitesOf bt a - = throwDyn NoBkptFound + = Left NoBkptFound - | otherwise = throwDyn NotHandled + | otherwise = Left NotHandled delBkptByCoord a (r,c) bt | Just sites <- sitesOf bt a @@ -247,9 +519,9 @@ delBkptByCoord a (r,c) bt = delBkptBySite a site bt | Just sites <- sitesOf bt a - = throwDyn NoBkptFound + = Left NoBkptFound - | otherwise = throwDyn NotHandled + | otherwise = Left NotHandled btElems bt = [ (a, [i | (i,True) <- assocs siteArr]) | (a, siteArr) <- Map.assocs (breakpoints bt) ] @@ -268,40 +540,48 @@ getSiteCoords bt a site , s == site ] -- addModule is dumb and inefficient, but it does the job ---addModule fn siteCoords _ | trace ("addModule: " ++ moduleString (unsafeCoerce# fn) ++ " - " ++ show siteCoords) False = undefined -addModule a [] bt = bt +addModule a [] bt = bt {sites = Map.insert a [] (sites bt)} addModule a siteCoords bt | nrows <- maximum$ [i | (_,(i,j)) <- siteCoords ] , sitesByRow <- [ [(s,c) | (s,(r,c)) <- siteCoords, r==i] | i <- [0..nrows] ] , nsites <- length siteCoords - , initialBkpts <- listArray (1, nsites) (repeat False) + , initialBkpts <- listArray (0, nsites+1) (repeat False) = bt{ sites = Map.insert a sitesByRow (sites bt) , breakpoints = Map.insert a initialBkpts (breakpoints bt) } +-- This MUST be fast +isBkptEnabled bt site | bt `seq` site `seq` False = undefined isBkptEnabled bt (a,site) | Just bkpts <- bkptsOf bt a - , inRange (bounds bkpts) site - = bkpts ! site - | otherwise = throwDyn NotHandled -- This is an error + = ASSERT (inRange (bounds bkpts) site) + unsafeAt bkpts site ----------------- -- Other stuff ----------------- -refreshBkptTable :: [ModSummary] -> GHCi () -refreshBkptTable [] = return () -refreshBkptTable (ms:mod_sums) = do - sess <- getSession - when (Opt_Debugging `elem` flags (GHC.ms_hspp_opts ms)) $ do - old_table <- getBkptTable - new_table <- addModuleGHC sess old_table (GHC.ms_mod ms) - setBkptTable new_table - refreshBkptTable mod_sums - where addModuleGHC sess bt mod = do - Just mod_info <- io$ GHC.getModuleInfo sess mod - dflags <- getDynFlags - let sites = GHC.modInfoBkptSites mod_info - io$ debugTraceMsg dflags 2 +refreshBkptTable :: Session -> BkptTable Module -> [ModSummary] -> IO (BkptTable Module) +refreshBkptTable sess = foldM updIfDebugging + where + updIfDebugging bt ms = do + isDebugging <- isDebuggingM ms + if isDebugging + then addModuleGHC sess bt (GHC.ms_mod ms) + else return bt + addModuleGHC sess bt mod = do + Just mod_info <- GHC.getModuleInfo sess mod + dflags <- GHC.getSessionDynFlags sess + let sites = GHC.modInfoBkptSites mod_info + debugTraceMsg dflags 2 (ppr mod <> text ": inserted " <> int (length sites) <> text " breakpoints") - return$ addModule mod sites bt + return$ addModule mod sites bt +#if defined(GHCI) && defined(DEBUGGER) + isDebuggingM ms = isModuleInterpreted sess ms >>= \isInterpreted -> + return (Opt_Debugging `elem` dflags && + target == HscInterpreted && isInterpreted) + where dflags = flags (GHC.ms_hspp_opts ms) + target = hscTarget (GHC.ms_hspp_opts ms) +#else + isDebuggingM _ = return False +#endif