-----------------------------------------------------------------------------
--
--- GHCi's :ctags and :etags commands
+-- GHCi's :ctags and :etags commands
--
-- (c) The GHC Team 2005-2007
--
-----------------------------------------------------------------------------
-{-# 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 GhciTags (createCTagsFileCmd, createETagsFileCmd) where
import GHC
-- into the GHC API instead
import Name (nameOccName)
import OccName (pprOccName)
+import MonadUtils
-import Control.Exception
+import Data.Maybe
+import Panic
import Data.List
import Control.Monad
import System.IO
ghciCreateTagsFile :: TagsKind -> FilePath -> GHCi ()
ghciCreateTagsFile kind file = do
- session <- getSession
- io $ createTagsFile session kind file
+ createTagsFile kind file
-- ToDo:
-- - remove restriction that all modules must be interpreted
-- - extract createTagsFile so it can be used from the command-line
-- (probably need to fix first problem before this is useful).
--
-createTagsFile :: Session -> TagsKind -> FilePath -> IO ()
-createTagsFile session tagskind tagFile = do
- graph <- GHC.getModuleGraph session
+createTagsFile :: TagsKind -> FilePath -> GHCi ()
+createTagsFile tagskind tagFile = do
+ graph <- GHC.getModuleGraph
let ms = map GHC.ms_mod graph
tagModule m = do
- is_interpreted <- GHC.moduleIsInterpreted session m
+ is_interpreted <- GHC.moduleIsInterpreted m
-- should we just skip these?
when (not is_interpreted) $
- throwDyn (CmdLineError ("module '"
+ ghcError (CmdLineError ("module '"
++ GHC.moduleNameString (GHC.moduleName m)
++ "' is not interpreted"))
- mbModInfo <- GHC.getModuleInfo session m
- let unqual
- | Just modinfo <- mbModInfo,
- Just unqual <- GHC.modInfoPrintUnqualified modinfo = unqual
- | otherwise = GHC.alwaysQualify
-
+ mbModInfo <- GHC.getModuleInfo m
+ unqual <-
+ case mbModInfo of
+ Just minf -> do
+ mb_print_unqual <- GHC.mkPrintUnqualifiedForModule minf
+ return (fromMaybe GHC.alwaysQualify mb_print_unqual)
+ Nothing ->
+ return GHC.alwaysQualify
case mbModInfo of
Just modInfo -> return $! listTags unqual modInfo
_ -> return []
mtags <- mapM tagModule ms
- either_res <- collateAndWriteTags tagskind tagFile $ concat mtags
+ either_res <- liftIO $ collateAndWriteTags tagskind tagFile $ concat mtags
case either_res of
- Left e -> hPutStrLn stderr $ ioeGetErrorString e
+ Left e -> liftIO $ hPutStrLn stderr $ ioeGetErrorString e
Right _ -> return ()
listTags :: PrintUnqualified -> GHC.ModuleInfo -> [TagInfo]
tagGroups <- mapM tagFileGroup groups
IO.try (writeFile file $ concat tagGroups)
where
- tagFileGroup group@[] = throwDyn (CmdLineError "empty tag file group??")
+ tagFileGroup [] = ghcError (CmdLineError "empty tag file group??")
tagFileGroup group@((_,fileName,_,_):_) = do
file <- readFile fileName -- need to get additional info from sources..
let byLine (_,_,l1,_) (_,_,l2,_) = l1 <= l2
sortedGroup = sortLe byLine group
tags = unlines $ perFile sortedGroup 1 0 $ lines file
return $ "\x0c\n" ++ fileName ++ "," ++ show (length tags) ++ "\n" ++ tags
- perFile (tagInfo@(tag,file,lNo,colNo):tags) count pos (line:lines) | lNo>count =
- perFile (tagInfo:tags) (count+1) (pos+length line) lines
- perFile (tagInfo@(tag,file,lNo,colNo):tags) count pos lines@(line:_) | lNo==count =
- showETag tagInfo line pos : perFile tags count pos lines
- perFile tags count pos lines = []
+ perFile (tagInfo@(_tag, _file, lNo, _colNo):tags) count pos lines@(line:lines')
+ | lNo > count = perFile (tagInfo:tags) (count+1) (pos+length line) lines'
+ | lNo == count = showETag tagInfo line pos : perFile tags count pos lines
+ perFile _ _ _ _ = []
-- simple ctags format, for Vim et al
showTag :: TagInfo -> String
-showTag (tag,file,lineNo,colNo)
+showTag (tag, file, lineNo, _colNo)
= tag ++ "\t" ++ file ++ "\t" ++ show lineNo
-- etags format, for Emacs/XEmacs
showETag :: TagInfo -> String -> Int -> String
-showETag (tag,file,lineNo,colNo) line charPos
+showETag (tag, _file, lineNo, colNo) line charPos
= take colNo line ++ tag
++ "\x7f" ++ tag
++ "\x01" ++ show lineNo