--unfocus (FGraph e bz bs) = LGraph e (insertBlock (zip bz) bs)
-focusp p (LGraph entry _ blocks) =
+focusp p (LGraph entry blocks) =
fmap (\(b, bs) -> FGraph entry (unzip b) bs) (splitp_blocks p blocks)
-exit g@(LGraph eid _ _) = FGraph eid (ZBlock h (ZLast l)) others
+exit g@(LGraph eid _) = FGraph eid (ZBlock h (ZLast l)) others
where FGraph _ b others = focusp is_exit g `orElse` panic "no exit in flow graph"
(h, l) = goto_end b
foldM_fwd_block ::
Monad m => (BlockId -> a -> m a) -> (mid -> a -> m a) -> (ZLast l -> a -> m a) ->
Block mid l -> a -> m a
-foldM_fwd_block first middle last (Block id _ t) z = do { z <- first id z; tail t z }
+foldM_fwd_block first middle last (Block id t) z = do { z <- first id z; tail t z }
where tail (ZTail m t) z = do { z <- middle m z; tail t z }
tail (ZLast l) z = last l z
splitp_blocks :: (Block m l -> Bool) -> BlockEnv (Block m l) ->
Maybe (Block m l, BlockEnv (Block m l))
-splitp_blocks = undefined -- implemented in ZipCfg but not exported
+splitp_blocks = panic "splitp_blocks" -- implemented in ZipCfg but not exported
is_exit :: Block m l -> Bool
-is_exit = undefined -- implemented in ZipCfg but not exported
+is_exit = panic "is_exit" -- implemented in ZipCfg but not exported