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add/reformat (commented out) tracing code to SwitchTrans

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This commit is contained in:
l.mai 2007-10-11 02:21:39 +00:00
parent 183b6fb563
commit 39b30296c5
1 changed files with 15 additions and 8 deletions
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23
SwitchTrans.hs
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@ -81,7 +81,7 @@ import Operations
import qualified Data.Map as M
import Data.Map (Map)
-- import System.IO
--import System.IO
-- | Toggle the specified layout transformer.
@ -119,8 +119,11 @@ acceptChange st f action =
instance LayoutClass SwitchTrans a where
description _ = "SwitchTrans"
doLayout st r s = currLayout st `unLayout` \l ->
acceptChange st (fmap . fmap) (doLayout l r s)
doLayout st r s = currLayout st `unLayout` \l -> do
--io $ hPutStrLn stderr $ "[ST]{ " ++ show st
x{- @(_, w) -} <- acceptChange st (fmap . fmap) (doLayout l r s)
--io $ hPutStrLn stderr $ "[ST]} " ++ show w
return x
pureLayout st r s = currLayout st `unLayout` \l -> pureLayout l r s
@ -139,11 +142,15 @@ instance LayoutClass SwitchTrans a where
else
enable tag alt
| Just ReleaseResources <- fromMessage m
= currLayout st `unLayout` \cl ->
= currLayout st `unLayout` \cl -> do
--io $ hPutStrLn stderr $ "[ST]~ " ++ show st
acceptChange st fmap (handleMessage cl m)
| Just Hide <- fromMessage m
= currLayout st `unLayout` \cl ->
acceptChange st fmap (handleMessage cl m)
= currLayout st `unLayout` \cl -> do
--io $ hPutStrLn stderr $ "[ST]< " ++ show st
x <- acceptChange st fmap (handleMessage cl m)
--io $ hPutStrLn stderr $ "[ST]> " ++ show x
return x
| otherwise = base st `unLayout` \b -> do
x <- handleMessage b m
case x of
@ -154,14 +161,14 @@ instance LayoutClass SwitchTrans a where
return . Just $ st{ base = b'', currLayout = currFilt st b'' }
where
enable tag alt = currLayout st `unLayout` \cl -> do
-- io $ hPutStrLn stderr $ "[ST]+ " ++ show cl ++ " -> " ++ show (alt (base st))
--io $ hPutStrLn stderr $ "[ST]+ " ++ show cl ++ " -> " ++ show (alt (base st))
handleMessage cl (SomeMessage ReleaseResources)
return . Just $ st{
currTag = Just tag,
currFilt = alt,
currLayout = alt (base st) }
disable = currLayout st `unLayout` \cl -> do
-- io $ hPutStrLn stderr $ "[ST]- " ++ show cl ++ " -> " ++ show (base st)
--io $ hPutStrLn stderr $ "[ST]- " ++ show cl ++ " -> " ++ show (base st)
handleMessage cl (SomeMessage ReleaseResources)
return . Just $ st{
currTag = Nothing,