\section[Coverage]{@coverage@: the main function}
\begin{code}
-{-# 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 Coverage (addCoverageTicksToBinds) where
-#include "HsVersions.h"
-
import HsSyn
import Module
import Outputable
import ErrUtils
import Name
import Bag
-import Var
+import Id
import VarSet
import Data.List
import FastString
import HscTypes
import StaticFlags
-import UniqFM
-import Type
import TyCon
import FiniteMap
-import PackageConfig
import Data.Array
-import System.Time (ClockTime(..))
-import System.IO (FilePath)
-#if __GLASGOW_HASKELL__ < 603
-import Compat.Directory ( createDirectoryIfMissing )
-#else
+import Data.Maybe
import System.Directory ( createDirectoryIfMissing )
-#endif
import Trace.Hpc.Mix
import Trace.Hpc.Util
:: DynFlags
-> Module
-> ModLocation -- of the current module
- -> [TyCon] -- type constructor in this module
+ -> [TyCon] -- type constructor in this module
-> LHsBinds Id
-> IO (LHsBinds Id, HpcInfo, ModBreaks)
if "boot" `isSuffixOf` orig_file then return (binds, emptyHpcInfo False, emptyModBreaks) else do
+ -- Now, we try look for a file generated from a .hsc file to a .hs file, by peeking ahead.
+
+ let top_pos = catMaybes $ foldrBag (\ (L pos _) rest -> srcSpanFileName_maybe pos : rest) [] binds
+ let orig_file2 = case top_pos of
+ (file_name:_)
+ | ".hsc" `isSuffixOf` unpackFS file_name -> unpackFS file_name
+ _ -> orig_file
+
let mod_name = moduleNameString (moduleName mod)
let (binds1,_,st)
= unTM (addTickLHsBinds binds)
(TTE
- { fileName = mkFastString orig_file
+ { fileName = mkFastString orig_file2
, declPath = []
, inScope = emptyVarSet
, blackList = listToFM [ (getSrcSpan (tyConName tyCon),())
let tabStop = 1 -- <tab> counts as a normal char in GHC's location ranges.
createDirectoryIfMissing True hpc_mod_dir
- modTime <- getModificationTime orig_file
+ modTime <- getModificationTime orig_file2
let entries' = [ (hpcPos, box)
| (span,_,box) <- entries, hpcPos <- [mkHpcPos span] ]
when (length entries' /= tickBoxCount st) $ do
panic "the number of .mix entries are inconsistent"
- let hashNo = mixHash orig_file modTime tabStop entries'
+ let hashNo = mixHash orig_file2 modTime tabStop entries'
mixCreate hpc_mod_dir mod_name
- $ Mix orig_file modTime (toHash hashNo) tabStop entries'
+ $ Mix orig_file2 modTime (toHash hashNo) tabStop entries'
return $ hashNo
else do
return $ 0
addTickLHsBinds binds = mapBagM addTickLHsBind binds
addTickLHsBind :: LHsBind Id -> TM (LHsBind Id)
-addTickLHsBind (L pos t@(AbsBinds abs_tvs abs_dicts abs_exports abs_binds)) = do
+addTickLHsBind (L pos (AbsBinds abs_tvs abs_dicts abs_exports abs_binds)) = do
abs_binds' <- addTickLHsBinds abs_binds
return $ L pos $ AbsBinds abs_tvs abs_dicts abs_exports abs_binds'
addTickLHsBind (L pos (funBind@(FunBind { fun_id = (L _ id) }))) = do
let name = getOccString id
decl_path <- getPathEntry
- (fvs, mg@(MatchGroup matches' ty)) <-
+ (fvs, (MatchGroup matches' ty)) <-
getFreeVars $
addPathEntry name $
addTickMatchGroup (fun_matches funBind)
-}
return $ L pos $ pat { pat_rhs = rhs' }
-{- only internal stuff, not from source, uses VarBind, so we ignore it.
-addTickLHsBind (VarBind var_id var_rhs) = do
- var_rhs' <- addTickLHsExpr var_rhs
- return $ VarBind var_id var_rhs'
--}
-addTickLHsBind other = return other
+-- Only internal stuff, not from source, uses VarBind, so we ignore it.
+addTickLHsBind var_bind@(L _ (VarBind {})) = return var_bind
-- Add a tick to the expression no matter what it is. There is one exception:
-- for the debugger, if the expression is a 'let', then we don't want to add
isGoodBreakExpr (RecordUpd {}) = True
isGoodBreakExpr (ArithSeq {}) = True
isGoodBreakExpr (PArrSeq {}) = True
-isGoodBreakExpr other = False
+isGoodBreakExpr _other = False
addTickLHsExprOptAlt :: Bool -> LHsExpr Id -> TM (LHsExpr Id)
addTickLHsExprOptAlt oneOfMany (L pos e0)
addTickHsExpr e0
addBinTickLHsExpr :: (Bool -> BoxLabel) -> LHsExpr Id -> TM (LHsExpr Id)
-addBinTickLHsExpr boxLabel (L pos e0) = do
- e1 <- addTickHsExpr e0
- allocBinTickBox boxLabel $ L pos e1
+addBinTickLHsExpr boxLabel (L pos e0) =
+ allocBinTickBox boxLabel pos $
+ addTickHsExpr e0
addTickHsExpr :: HsExpr Id -> TM (HsExpr Id)
addTickHsExpr e@(HsVar id) = do freeVar id; return e
addTickHsExpr e@(HsIPVar _) = return e
addTickHsExpr e@(HsOverLit _) = return e
addTickHsExpr e@(HsLit _) = return e
-addTickHsExpr e@(HsLam matchgroup) =
+addTickHsExpr (HsLam matchgroup) =
liftM HsLam (addTickMatchGroup matchgroup)
addTickHsExpr (HsApp e1 e2) =
liftM2 HsApp (addTickLHsExprNever e1) (addTickLHsExpr e2)
liftM2 ArithSeq
(return ty)
(addTickArithSeqInfo arith_seq)
-addTickHsExpr (HsTickPragma (file,(l1,c1),(l2,c2)) (L pos e0)) = do
+addTickHsExpr (HsTickPragma _ (L pos e0)) = do
e2 <- allocTickBox (ExpBox False) pos $
addTickHsExpr e0
return $ unLoc e2
(return fix)
(mapM (liftL (addTickHsCmdTop)) cmdtop)
-addTickHsExpr e@(HsType ty) = return e
+addTickHsExpr e@(HsType _) = return e
-- Others dhould never happen in expression content.
-addTickHsExpr e@(ExprWithTySig {}) = pprPanic "addTickHsExpr" (ppr e)
-addTickHsExpr e@(EAsPat _ _) = pprPanic "addTickHsExpr" (ppr e)
-addTickHsExpr e@(ELazyPat _) = pprPanic "addTickHsExpr" (ppr e)
-addTickHsExpr e@(EWildPat) = pprPanic "addTickHsExpr" (ppr e)
-addTickHsExpr e@(HsBinTick _ _ _) = pprPanic "addTickHsExpr" (ppr e)
-addTickHsExpr e@(HsTick _ _ _) = pprPanic "addTickHsExpr" (ppr e)
+addTickHsExpr e = pprPanic "addTickHsExpr" (ppr e)
+addTickMatchGroup :: MatchGroup Id -> TM (MatchGroup Id)
addTickMatchGroup (MatchGroup matches ty) = do
let isOneOfMany = matchesOneOfMany matches
matches' <- mapM (liftL (addTickMatch isOneOfMany)) matches
binders = map unLoc (collectLStmtsBinders lstmts)
addTickStmt :: (Maybe (Bool -> BoxLabel)) -> Stmt Id -> TM (Stmt Id)
-addTickStmt isGuard (BindStmt pat e bind fail) = do
+addTickStmt _isGuard (BindStmt pat e bind fail) = do
liftM4 BindStmt
(addTickLPat pat)
(addTickLHsExprAlways e)
(addTickSyntaxExpr hpcSrcSpan fail)
addTickStmt isGuard (ExprStmt e bind' ty) = do
liftM3 ExprStmt
- (addTick e)
+ (addTick isGuard e)
(addTickSyntaxExpr hpcSrcSpan bind')
(return ty)
- where
- addTick e | Just fn <- isGuard = addBinTickLHsExpr fn e
- | otherwise = addTickLHsExprAlways e
-
-addTickStmt isGuard (LetStmt binds) = do
+addTickStmt _isGuard (LetStmt binds) = do
liftM LetStmt
(addTickHsLocalBinds binds)
addTickStmt isGuard (ParStmt pairs) = do
- liftM ParStmt (mapM process pairs)
- where
- process (stmts,ids) =
- liftM2 (,)
- (addTickLStmts isGuard stmts)
- (return ids)
+ liftM ParStmt
+ (mapM (addTickStmtAndBinders isGuard) pairs)
+addTickStmt isGuard (TransformStmt (stmts, ids) usingExpr maybeByExpr) = do
+ liftM3 TransformStmt
+ (addTickStmtAndBinders isGuard (stmts, ids))
+ (addTickLHsExprAlways usingExpr)
+ (addTickMaybeByLHsExpr maybeByExpr)
+addTickStmt isGuard (GroupStmt (stmts, binderMap) groupByClause) = do
+ liftM2 GroupStmt
+ (addTickStmtAndBinders isGuard (stmts, binderMap))
+ (case groupByClause of
+ GroupByNothing usingExpr -> addTickLHsExprAlways usingExpr >>= (return . GroupByNothing)
+ GroupBySomething eitherUsingExpr byExpr -> do
+ eitherUsingExpr' <- mapEitherM addTickLHsExprAlways (addTickSyntaxExpr hpcSrcSpan) eitherUsingExpr
+ byExpr' <- addTickLHsExprAlways byExpr
+ return $ GroupBySomething eitherUsingExpr' byExpr')
+ where
+ mapEitherM f g x = do
+ case x of
+ Left a -> f a >>= (return . Left)
+ Right b -> g b >>= (return . Right)
addTickStmt isGuard (RecStmt stmts ids1 ids2 tys dictbinds) = do
liftM5 RecStmt
(addTickLStmts isGuard stmts)
(return tys)
(addTickDictBinds dictbinds)
+addTick :: Maybe (Bool -> BoxLabel) -> LHsExpr Id -> TM (LHsExpr Id)
+addTick isGuard e | Just fn <- isGuard = addBinTickLHsExpr fn e
+ | otherwise = addTickLHsExprAlways e
+
+addTickStmtAndBinders :: Maybe (Bool -> BoxLabel) -> ([LStmt Id], a)
+ -> TM ([LStmt Id], a)
+addTickStmtAndBinders isGuard (stmts, ids) =
+ liftM2 (,)
+ (addTickLStmts isGuard stmts)
+ (return ids)
+
+addTickMaybeByLHsExpr :: Maybe (LHsExpr Id) -> TM (Maybe (LHsExpr Id))
+addTickMaybeByLHsExpr maybeByExpr =
+ case maybeByExpr of
+ Nothing -> return Nothing
+ Just byExpr -> addTickLHsExprAlways byExpr >>= (return . Just)
+
addTickHsLocalBinds :: HsLocalBinds Id -> TM (HsLocalBinds Id)
addTickHsLocalBinds (HsValBinds binds) =
liftM HsValBinds
(addTickHsIPBinds binds)
addTickHsLocalBinds (EmptyLocalBinds) = return EmptyLocalBinds
+addTickHsValBinds :: HsValBindsLR Id a -> TM (HsValBindsLR Id b)
addTickHsValBinds (ValBindsOut binds sigs) =
liftM2 ValBindsOut
(mapM (\ (rec,binds') ->
(addTickLHsBinds binds'))
binds)
(return sigs)
+addTickHsValBinds _ = panic "addTickHsValBinds"
+addTickHsIPBinds :: HsIPBinds Id -> TM (HsIPBinds Id)
addTickHsIPBinds (IPBinds ipbinds dictbinds) =
liftM2 IPBinds
(mapM (liftL (addTickIPBind)) ipbinds)
-- deriving Show
type FreeVars = OccEnv Id
+noFVs :: FreeVars
noFVs = emptyOccEnv
-- Note [freevars]
-- monad (FreeVars).
instance Monad TM where
- return a = TM $ \ env st -> (a,noFVs,st)
+ return a = TM $ \ _env st -> (a,noFVs,st)
(TM m) >>= k = TM $ \ env st ->
case m env st of
(r1,fv1,st1) ->
-- getState :: TM TickTransState
-- getState = TM $ \ env st -> (st, noFVs, st)
-setState :: (TickTransState -> TickTransState) -> TM ()
-setState f = TM $ \ env st -> ((), noFVs, f st)
+-- setState :: (TickTransState -> TickTransState) -> TM ()
+-- setState f = TM $ \ env st -> ((), noFVs, f st)
getEnv :: TM TickTransEnv
getEnv = TM $ \ env st -> (env, noFVs, st)
sameFileName :: SrcSpan -> TM a -> TM a -> TM a
sameFileName pos out_of_scope in_scope = do
file_name <- getFileName
- case optSrcSpanFileName pos of
+ case srcSpanFileName_maybe pos of
Just file_name2
| file_name == file_name2 -> in_scope
_ -> out_of_scope
bindLocals new_ids (TM m)
= TM $ \ env st ->
case m env{ inScope = inScope env `extendVarSetList` new_ids } st of
- (r, fv, st') -> (r, fv `delListFromUFM` occs, st')
+ (r, fv, st') -> (r, fv `delListFromOccEnv` occs, st')
where occs = [ nameOccName (idName id) | id <- new_ids ]
isBlackListed :: SrcSpan -> TM Bool
sameFileName pos
(do e <- m; return (L pos e)) $ do
(fvs, e) <- getFreeVars m
- TM $ \ env st ->
+ TM $ \ _env st ->
let c = tickBoxCount st
ids = occEnvElts fvs
mes = mixEntries st
, fvs
, st {tickBoxCount=c+1,mixEntries=me:mes}
)
-allocTickBox boxLabel pos m = do e <- m; return (L pos e)
+allocTickBox _boxLabel pos m = do e <- m; return (L pos e)
-- the tick application inherits the source position of its
-- expression argument to support nested box allocations
allocATickBox :: BoxLabel -> SrcSpan -> FreeVars -> TM (Maybe (Int,[Id]))
allocATickBox boxLabel pos fvs | isGoodSrcSpan' pos =
sameFileName pos
- (return Nothing) $ TM $ \ env st ->
+ (return Nothing) $ TM $ \ _env st ->
let me = (pos, map (nameOccName.idName) ids, boxLabel)
c = tickBoxCount st
mes = mixEntries st
, noFVs
, st {tickBoxCount=c+1, mixEntries=me:mes}
)
-allocATickBox boxLabel pos fvs = return Nothing
-
-allocBinTickBox :: (Bool -> BoxLabel) -> LHsExpr Id -> TM (LHsExpr Id)
-allocBinTickBox boxLabel (L pos e) | isGoodSrcSpan' pos = TM $ \ env st ->
+allocATickBox _boxLabel _pos _fvs = return Nothing
+
+allocBinTickBox :: (Bool -> BoxLabel) -> SrcSpan -> TM (HsExpr Id)
+ -> TM (LHsExpr Id)
+allocBinTickBox boxLabel pos m
+ | not opt_Hpc = allocTickBox (ExpBox False) pos m
+ | isGoodSrcSpan' pos =
+ do
+ e <- m
+ TM $ \ _env st ->
let meT = (pos,[],boxLabel True)
meF = (pos,[],boxLabel False)
meE = (pos,[],ExpBox False)
c = tickBoxCount st
mes = mixEntries st
in
- if opt_Hpc
- then ( L pos $ HsTick c [] $ L pos $ HsBinTick (c+1) (c+2) (L pos e)
+ ( L pos $ HsTick c [] $ L pos $ HsBinTick (c+1) (c+2) (L pos e)
-- notice that F and T are reversed,
-- because we are building the list in
-- reverse...
, noFVs
, st {tickBoxCount=c+3 , mixEntries=meF:meT:meE:mes}
)
- else
- ( L pos $ HsTick c [] $ L pos e
- , noFVs
- , st {tickBoxCount=c+1,mixEntries=meE:mes}
- )
-
-allocBinTickBox boxLabel e = return e
+allocBinTickBox _boxLabel pos m = do e <- m; return (L pos e)
+isGoodSrcSpan' :: SrcSpan -> Bool
isGoodSrcSpan' pos
| not (isGoodSrcSpan pos) = False
| start == end = False
, srcLocCol end
)
-noHpcPos = toHpcPos (0,0,0,0)
-
-hpcSrcSpan = mkGeneralSrcSpan (FSLIT("Haskell Program Coverage internals"))
+hpcSrcSpan :: SrcSpan
+hpcSrcSpan = mkGeneralSrcSpan (fsLit "Haskell Program Coverage internals")
\end{code}
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