\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"
:: 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)
Just file -> file
Nothing -> panic "can not find the original file during hpc trans"
- if "boot" `isSuffixOf` orig_file then return (binds, noHpcInfo, emptyModBreaks) else do
+ if "boot" `isSuffixOf` orig_file then return (binds, emptyHpcInfo False, emptyModBreaks) else do
let mod_name = moduleNameString (moduleName mod)
let (binds1,_,st)
= unTM (addTickLHsBinds binds)
(TTE
- { modName = mod_name
+ { fileName = mkFastString orig_file
, declPath = []
, inScope = emptyVarSet
, blackList = listToFM [ (getSrcSpan (tyConName tyCon),())
-}
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
(addTickHsRecordBinds rec_binds)
(return cons) (return tys1) (return tys2)
-addTickHsExpr (ExprWithTySig {}) = error "addTickHsExpr: ExprWithTySig"
addTickHsExpr (ExprWithTySigOut e ty) =
liftM2 ExprWithTySigOut
(addTickLHsExprNever e) -- No need to tick the inner expression
addTickHsExpr e@(HsType ty) = return e
--- Should never happen in expression content.
-addTickHsExpr (EAsPat _ _) = error "addTickHsExpr: EAsPat _ _"
-addTickHsExpr (ELazyPat _) = error "addTickHsExpr: ELazyPat _"
-addTickHsExpr (EWildPat) = error "addTickHsExpr: EWildPat"
-addTickHsExpr (HsBinTick _ _ _) = error "addTickhsExpr: HsBinTick _ _ _"
-addTickHsExpr (HsTick _ _ _) = error "addTickhsExpr: HsTick _ _"
+-- 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)
addTickMatchGroup (MatchGroup matches ty) = do
let isOneOfMany = matchesOneOfMany matches
(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
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 isGuard e | Just fn <- isGuard = addBinTickLHsExpr fn e
+ | otherwise = addTickLHsExprAlways e
+
+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
, mixEntries :: [MixEntry_]
}
-data TickTransEnv = TTE { modName :: String
+data TickTransEnv = TTE { fileName :: FastString
, declPath :: [String]
, inScope :: VarSet
, blackList :: FiniteMap SrcSpan ()
getPathEntry :: TM [String]
getPathEntry = declPath `liftM` getEnv
+getFileName :: TM FastString
+getFileName = fileName `liftM` getEnv
+
+sameFileName :: SrcSpan -> TM a -> TM a -> TM a
+sameFileName pos out_of_scope in_scope = do
+ file_name <- getFileName
+ case optSrcSpanFileName pos of
+ Just file_name2
+ | file_name == file_name2 -> in_scope
+ _ -> out_of_scope
+
bindLocals :: [Id] -> TM a -> TM a
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
-- the tick application inherits the source position of its
-- expression argument to support nested box allocations
allocTickBox :: BoxLabel -> SrcSpan -> TM (HsExpr Id) -> TM (LHsExpr Id)
-allocTickBox boxLabel pos m | isGoodSrcSpan' pos = do
+allocTickBox boxLabel pos m | isGoodSrcSpan' pos =
+ sameFileName pos
+ (do e <- m; return (L pos e)) $ do
(fvs, e) <- getFreeVars m
TM $ \ env st ->
let c = tickBoxCount st
-- 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 = TM $ \ env st ->
+allocATickBox boxLabel pos fvs | isGoodSrcSpan' pos =
+ sameFileName pos
+ (return Nothing) $ TM $ \ env st ->
let me = (pos, map (nameOccName.idName) ids, boxLabel)
c = tickBoxCount st
mes = mixEntries st
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