--
-- -----------------------------------------------------------------------------
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module InteractiveEval (
#ifdef GHCI
RunResult(..), Status(..), Resume(..), History(..),
abandon, abandonAll,
getResumeContext,
getHistorySpan,
+ getModBreaks,
getHistoryModule,
back, forward,
setContext, getContext,
isModuleInterpreted,
compileExpr, dynCompileExpr,
lookupName,
- obtainTerm, obtainTerm1, reconstructType,
+ Term(..), obtainTerm, obtainTerm1, obtainTermB, reconstructType,
skolemiseSubst, skolemiseTy
#endif
) where
import Data.Array
import Control.Exception as Exception
import Control.Concurrent
+import Data.List (sortBy)
import Data.IORef
import Foreign.StablePtr
= History {
historyApStack :: HValue,
historyBreakInfo :: BreakInfo,
- historyEnclosingDecl :: Name
+ historyEnclosingDecl :: Id
-- ^^ A cache of the enclosing top level declaration, for convenience
}
let inf = historyBreakInfo hist
num = breakInfo_number inf
in case lookupUFM (hsc_HPT hsc_env) (moduleName (breakInfo_module inf)) of
- Just hmi -> modBreaks_locs (md_modBreaks (hm_details hmi)) ! num
+ Just hmi -> modBreaks_locs (getModBreaks hmi) ! num
_ -> panic "getHistorySpan"
--- | Finds the enclosing top level function name
-findEnclosingDecl :: HscEnv -> Module -> SrcSpan -> Name
+getModBreaks :: HomeModInfo -> ModBreaks
+getModBreaks hmi
+ | Just linkable <- hm_linkable hmi,
+ [BCOs _ modBreaks] <- linkableUnlinked linkable
+ = modBreaks
+ | otherwise
+ = emptyModBreaks -- probably object code
+
+{- | Finds the enclosing top level function name -}
+-- ToDo: a better way to do this would be to keep hold of the decl_path computed
+-- by the coverage pass, which gives the list of lexically-enclosing bindings
+-- for each tick.
+findEnclosingDecl :: HscEnv -> Module -> SrcSpan -> Id
findEnclosingDecl hsc_env mod span =
case lookupUFM (hsc_HPT hsc_env) (moduleName mod) of
Nothing -> panic "findEnclosingDecl"
Just hmi -> let
- globals = typeEnvIds (md_types (hm_details hmi))
- Just decl = find (\n -> nameSrcSpan n < span)
- (reverse $ map idName globals)
- -- ^^ assumes md_types is sorted
- in decl
-
--- | Find the Module corresponding to a FilePath
-findModuleFromFile :: HscEnv -> FilePath -> Maybe Module
-findModuleFromFile hsc_env fp =
- listToMaybe $ [ms_mod ms | ms <- hsc_mod_graph hsc_env
- , ml_hs_file(ms_location ms) == Just (read fp)]
-
+ globals = typeEnvIds (md_types (hm_details hmi))
+ Just decl =
+ find (\id -> let n = idName id in
+ nameSrcSpan n < span && isExternalName n)
+ (reverse$ sortBy (compare `on` (nameSrcSpan.idName))
+ globals)
+ in decl
-- | Run a statement in the current interactive context. Statement
-- may bind multple values.
isBreakEnabled hsc_env inf =
case lookupUFM (hsc_HPT hsc_env) (moduleName (breakInfo_module inf)) of
Just hmi -> do
- w <- getBreak (modBreaks_flags (md_modBreaks (hm_details hmi)))
+ w <- getBreak (modBreaks_flags (getModBreaks hmi))
(breakInfo_number inf)
case w of Just n -> return (n /= 0); _other -> return False
_ ->
bindLocalsAtBreakpoint hsc_env apStack (Just info) = do
let
- mod_name = moduleName (breakInfo_module info)
- mod_details = fmap hm_details (lookupUFM (hsc_HPT hsc_env) mod_name)
- breaks = md_modBreaks (expectJust "handlRunStatus" mod_details)
+ mod_name = moduleName (breakInfo_module info)
+ hmi = expectJust "bindLocalsAtBreakpoint" $
+ lookupUFM (hsc_HPT hsc_env) mod_name
+ breaks = getModBreaks hmi
index = breakInfo_number info
vars = breakInfo_vars info
result_ty = breakInfo_resty info
-- So that we don't fall over in a heap when this happens, just don't
-- bind any free variables instead, and we emit a warning.
mb_hValues <- mapM (getIdValFromApStack apStack) offsets
- let (filtered_hvs, filtered_ids) =
- unzip [ (hv, id) | (id, Just hv) <- zip ids mb_hValues ]
+ let filtered_ids = [ id | (id, Just hv) <- zip ids mb_hValues ]
when (any isNothing mb_hValues) $
debugTraceMsg (hsc_dflags hsc_env) 1 $
text "Warning: _result has been evaluated, some bindings have been lost"
rttiEnvironment :: HscEnv -> IO HscEnv
rttiEnvironment hsc_env@HscEnv{hsc_IC=ic} = do
- let InteractiveContext{ic_tmp_ids=tmp_ids, ic_tyvars = tyvars} = ic
+ let InteractiveContext{ic_tmp_ids=tmp_ids} = ic
incompletelyTypedIds =
[id | id <- tmp_ids
, not $ null [v | v <- varSetElems$ tyVarsOfType (idType id)
, isSkolemTyVar v]
, (occNameFS.nameOccName.idName) id /= result_fs]
- tys <- reconstructType hsc_env False `mapM` incompletelyTypedIds
+ tys <- reconstructType hsc_env 10 `mapM` incompletelyTypedIds
-- map termType `fmap` (obtainTerm hsc_env False `mapM` incompletelyTypedIds)
let substs = [computeRTTIsubst ty ty'
obtainTerm1 :: HscEnv -> Bool -> Maybe Type -> a -> IO Term
obtainTerm1 hsc_env force mb_ty x =
- cvObtainTerm hsc_env force mb_ty (unsafeCoerce# x)
+ cvObtainTerm hsc_env maxBound force mb_ty (unsafeCoerce# x)
+
+obtainTermB :: HscEnv -> Int -> Bool -> Id -> IO Term
+obtainTermB hsc_env bound force id = do
+ hv <- Linker.getHValue hsc_env (varName id)
+ cvObtainTerm hsc_env bound force (Just$ idType id) hv
obtainTerm :: HscEnv -> Bool -> Id -> IO Term
obtainTerm hsc_env force id = do
hv <- Linker.getHValue hsc_env (varName id)
- cvObtainTerm hsc_env force (Just$ idType id) hv
+ cvObtainTerm hsc_env maxBound force (Just$ idType id) hv
-- Uses RTTI to reconstruct the type of an Id, making it less polymorphic
-reconstructType :: HscEnv -> Bool -> Id -> IO (Maybe Type)
-reconstructType hsc_env force id = do
+reconstructType :: HscEnv -> Int -> Id -> IO (Maybe Type)
+reconstructType hsc_env bound id = do
hv <- Linker.getHValue hsc_env (varName id)
- cvReconstructType hsc_env force (Just$ idType id) hv
+ cvReconstructType hsc_env bound (Just$ idType id) hv
#endif /* GHCI */
projects / ghc-hetmet.git / blobdiff