import Linker
import Util
import NameSet
-import Maybes ( orElse )
+import Maybes ( orElse, expectJust )
import FastString
import Encoding
import MonadUtils ( liftIO )
import Data.IORef ( IORef, readIORef, writeIORef )
-#ifdef USE_EDITLINE
-import System.Posix.Internals ( setNonBlockingFD )
-#endif
-
-----------------------------------------------------------------------------
ghciWelcomeMsg :: String
" :set prog <progname> set the value returned by System.getProgName\n" ++
" :set prompt <prompt> set the prompt used in GHCi\n" ++
" :set editor <cmd> set the command used for :edit\n" ++
- " :set stop <cmd> set the command to run when a breakpoint is hit\n" ++
+ " :set stop [<n>] <cmd> set the command to run when a breakpoint is hit\n" ++
" :unset <option> ... unset options\n" ++
"\n" ++
" Options for ':set' and ':unset':\n" ++
return (Just str)
withReadline :: IO a -> IO a
-withReadline = bracket_ stopTimer (do startTimer; setNonBlockingFD 0)
- -- Two problems are being worked around here:
- -- 1. readline sometimes puts stdin into blocking mode,
- -- so we need to put it back for the IO library
- -- 2. editline doesn't handle some of its system calls returning
+withReadline = bracket_ stopTimer startTimer
+ -- editline doesn't handle some of its system calls returning
-- EINTR, so our timer signal confuses it, hence we turn off
-- the timer signal when making calls to editline. (#2277)
-- If editline is ever fixed, we can remove this.
case this of
[] -> panic "listModuleLine"
summ:_ -> do
- let filename = fromJust (ml_hs_file (GHC.ms_location summ))
+ let filename = expectJust "listModuleLine" (ml_hs_file (GHC.ms_location summ))
loc = GHC.mkSrcLoc (mkFastString (filename)) line 0
io $ listAround (GHC.srcLocSpan loc) False