{-# LINE 1 "templates/GenericTemplate.hs" #-} {-# LINE 1 "templates/GenericTemplate.hs" #-} {-# LINE 1 "" #-} {-# LINE 1 "" #-} {-# LINE 1 "templates/GenericTemplate.hs" #-} -- Id: GenericTemplate.hs,v 1.26 2005/01/14 14:47:22 simonmar Exp {-# LINE 28 "templates/GenericTemplate.hs" #-} data Happy_IntList = HappyCons Happy_GHC_Exts.Int# Happy_IntList {-# LINE 49 "templates/GenericTemplate.hs" #-} {-# LINE 59 "templates/GenericTemplate.hs" #-} {-# LINE 68 "templates/GenericTemplate.hs" #-} infixr 9 `HappyStk` data HappyStk a = HappyStk a (HappyStk a) ----------------------------------------------------------------------------- -- starting the parse happyParse start_state = happyNewToken start_state notHappyAtAll notHappyAtAll ----------------------------------------------------------------------------- -- Accepting the parse -- If the current token is 0#, it means we've just accepted a partial -- parse (a %partial parser). We must ignore the saved token on the top of -- the stack in this case. happyAccept 0# tk st sts (_ `HappyStk` ans `HappyStk` _) = happyReturn1 ans happyAccept j tk st sts (HappyStk ans _) = (happyTcHack j (happyTcHack st)) (happyReturn1 ans) ----------------------------------------------------------------------------- -- Arrays only: do the next action happyDoAction i tk st = {- nothing -} case action of 0# -> {- nothing -} happyFail i tk st -1# -> {- nothing -} happyAccept i tk st n | (n Happy_GHC_Exts.<# (0# :: Happy_GHC_Exts.Int#)) -> {- nothing -} (happyReduceArr Happy_Data_Array.! rule) i tk st where rule = (Happy_GHC_Exts.I# ((Happy_GHC_Exts.negateInt# ((n Happy_GHC_Exts.+# (1# :: Happy_GHC_Exts.Int#)))))) n -> {- nothing -} happyShift new_state i tk st where new_state = (n Happy_GHC_Exts.-# (1# :: Happy_GHC_Exts.Int#)) where off = indexShortOffAddr happyActOffsets st off_i = (off Happy_GHC_Exts.+# i) check = if (off_i Happy_GHC_Exts.>=# (0# :: Happy_GHC_Exts.Int#)) then (indexShortOffAddr happyCheck off_i Happy_GHC_Exts.==# i) else False action | check = indexShortOffAddr happyTable off_i | otherwise = indexShortOffAddr happyDefActions st {-# LINE 127 "templates/GenericTemplate.hs" #-} indexShortOffAddr (HappyA# arr) off = #if __GLASGOW_HASKELL__ > 500 Happy_GHC_Exts.narrow16Int# i #elif __GLASGOW_HASKELL__ == 500 Happy_GHC_Exts.intToInt16# i #else Happy_GHC_Exts.iShiftRA# (Happy_GHC_Exts.iShiftL# i 16#) 16# #endif where #if __GLASGOW_HASKELL__ >= 503 i = Happy_GHC_Exts.word2Int# (Happy_GHC_Exts.or# (Happy_GHC_Exts.uncheckedShiftL# high 8#) low) #else i = Happy_GHC_Exts.word2Int# (Happy_GHC_Exts.or# (Happy_GHC_Exts.shiftL# high 8#) low) #endif high = Happy_GHC_Exts.int2Word# (Happy_GHC_Exts.ord# (Happy_GHC_Exts.indexCharOffAddr# arr (off' Happy_GHC_Exts.+# 1#))) low = Happy_GHC_Exts.int2Word# (Happy_GHC_Exts.ord# (Happy_GHC_Exts.indexCharOffAddr# arr off')) off' = off Happy_GHC_Exts.*# 2# data HappyAddr = HappyA# Happy_GHC_Exts.Addr# ----------------------------------------------------------------------------- -- HappyState data type (not arrays) {-# LINE 170 "templates/GenericTemplate.hs" #-} ----------------------------------------------------------------------------- -- Shifting a token happyShift new_state 0# tk st sts stk@(x `HappyStk` _) = let i = (case x of { HappyErrorToken (Happy_GHC_Exts.I# (i)) -> i }) in -- trace "shifting the error token" $ happyDoAction i tk new_state (HappyCons (st) (sts)) (stk) happyShift new_state i tk st sts stk = happyNewToken new_state (HappyCons (st) (sts)) ((HappyTerminal (tk))`HappyStk`stk) -- happyReduce is specialised for the common cases. happySpecReduce_0 i fn 0# tk st sts stk = happyFail 0# tk st sts stk happySpecReduce_0 nt fn j tk st@((action)) sts stk = happyGoto nt j tk st (HappyCons (st) (sts)) (fn `HappyStk` stk) happySpecReduce_1 i fn 0# tk st sts stk = happyFail 0# tk st sts stk happySpecReduce_1 nt fn j tk _ sts@((HappyCons (st@(action)) (_))) (v1`HappyStk`stk') = let r = fn v1 in happySeq r (happyGoto nt j tk st sts (r `HappyStk` stk')) happySpecReduce_2 i fn 0# tk st sts stk = happyFail 0# tk st sts stk happySpecReduce_2 nt fn j tk _ (HappyCons (_) (sts@((HappyCons (st@(action)) (_))))) (v1`HappyStk`v2`HappyStk`stk') = let r = fn v1 v2 in happySeq r (happyGoto nt j tk st sts (r `HappyStk` stk')) happySpecReduce_3 i fn 0# tk st sts stk = happyFail 0# tk st sts stk happySpecReduce_3 nt fn j tk _ (HappyCons (_) ((HappyCons (_) (sts@((HappyCons (st@(action)) (_))))))) (v1`HappyStk`v2`HappyStk`v3`HappyStk`stk') = let r = fn v1 v2 v3 in happySeq r (happyGoto nt j tk st sts (r `HappyStk` stk')) happyReduce k i fn 0# tk st sts stk = happyFail 0# tk st sts stk happyReduce k nt fn j tk st sts stk = case happyDrop (k Happy_GHC_Exts.-# (1# :: Happy_GHC_Exts.Int#)) sts of sts1@((HappyCons (st1@(action)) (_))) -> let r = fn stk in -- it doesn't hurt to always seq here... happyDoSeq r (happyGoto nt j tk st1 sts1 r) happyMonadReduce k nt fn 0# tk st sts stk = happyFail 0# tk st sts stk happyMonadReduce k nt fn j tk st sts stk = happyThen1 (fn stk tk) (\r -> happyGoto nt j tk st1 sts1 (r `HappyStk` drop_stk)) where sts1@((HappyCons (st1@(action)) (_))) = happyDrop k (HappyCons (st) (sts)) drop_stk = happyDropStk k stk happyMonad2Reduce k nt fn 0# tk st sts stk = happyFail 0# tk st sts stk happyMonad2Reduce k nt fn j tk st sts stk = happyThen1 (fn stk tk) (\r -> happyNewToken new_state sts1 (r `HappyStk` drop_stk)) where sts1@((HappyCons (st1@(action)) (_))) = happyDrop k (HappyCons (st) (sts)) drop_stk = happyDropStk k stk off = indexShortOffAddr happyGotoOffsets st1 off_i = (off Happy_GHC_Exts.+# nt) new_state = indexShortOffAddr happyTable off_i happyDrop 0# l = l happyDrop n (HappyCons (_) (t)) = happyDrop (n Happy_GHC_Exts.-# (1# :: Happy_GHC_Exts.Int#)) t happyDropStk 0# l = l happyDropStk n (x `HappyStk` xs) = happyDropStk (n Happy_GHC_Exts.-# (1#::Happy_GHC_Exts.Int#)) xs ----------------------------------------------------------------------------- -- Moving to a new state after a reduction happyGoto nt j tk st = {- nothing -} happyDoAction j tk new_state where off = indexShortOffAddr happyGotoOffsets st off_i = (off Happy_GHC_Exts.+# nt) new_state = indexShortOffAddr happyTable off_i ----------------------------------------------------------------------------- -- Error recovery (0# is the error token) -- parse error if we are in recovery and we fail again happyFail 0# tk old_st _ stk = -- trace "failing" $ happyError_ tk {- We don't need state discarding for our restricted implementation of "error". In fact, it can cause some bogus parses, so I've disabled it for now --SDM -- discard a state happyFail 0# tk old_st (HappyCons ((action)) (sts)) (saved_tok `HappyStk` _ `HappyStk` stk) = -- trace ("discarding state, depth " ++ show (length stk)) $ happyDoAction 0# tk action sts ((saved_tok`HappyStk`stk)) -} -- Enter error recovery: generate an error token, -- save the old token and carry on. happyFail i tk (action) sts stk = -- trace "entering error recovery" $ happyDoAction 0# tk action sts ( (HappyErrorToken (Happy_GHC_Exts.I# (i))) `HappyStk` stk) -- Internal happy errors: notHappyAtAll = error "Internal Happy error\n" ----------------------------------------------------------------------------- -- Hack to get the typechecker to accept our action functions happyTcHack :: Happy_GHC_Exts.Int# -> a -> a happyTcHack x y = y {-# INLINE happyTcHack #-} ----------------------------------------------------------------------------- -- Seq-ing. If the --strict flag is given, then Happy emits -- happySeq = happyDoSeq -- otherwise it emits -- happySeq = happyDontSeq happyDoSeq, happyDontSeq :: a -> b -> b happyDoSeq a b = a `seq` b happyDontSeq a b = b ----------------------------------------------------------------------------- -- Don't inline any functions from the template. GHC has a nasty habit -- of deciding to inline happyGoto everywhere, which increases the size of -- the generated parser quite a bit. {-# NOINLINE happyDoAction #-} {-# NOINLINE happyTable #-} {-# NOINLINE happyCheck #-} {-# NOINLINE happyActOffsets #-} {-# NOINLINE happyGotoOffsets #-} {-# NOINLINE happyDefActions #-} {-# NOINLINE happyShift #-} {-# NOINLINE happySpecReduce_0 #-} {-# NOINLINE happySpecReduce_1 #-} {-# NOINLINE happySpecReduce_2 #-} {-# NOINLINE happySpecReduce_3 #-} {-# NOINLINE happyReduce #-} {-# NOINLINE happyMonadReduce #-} {-# NOINLINE happyGoto #-} {-# NOINLINE happyFail #-} -- end of Happy Template.