X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fghci%2FInteractiveUI.hs;h=26d548d0896561c87288d23bb5f256c5298f1189;hp=fc2f7b4b75c7086de0fc017268e2f869b8020d83;hb=5ceeab2d3005bb1de8f2e8eeafbf761990bd1468;hpb=c0174c80e2888ff5bcf1d6535ee873ae44ce6ec4

diff --git a/compiler/ghci/InteractiveUI.hs b/compiler/ghci/InteractiveUI.hs
index fc2f7b4..26d548d 100644
--- a/compiler/ghci/InteractiveUI.hs
+++ b/compiler/ghci/InteractiveUI.hs
@@ -229,6 +229,9 @@ helpText =
  "   :force <expr>               print <expr>, forcing unevaluated parts\n" ++
  "   :forward                    go forward in the history (after :back)\n" ++
  "   :history [<n>]              after :trace, show the execution history\n" ++
+ "   :list                       show the source code around current breakpoint\n" ++
+ "   :list identifier            show the source code for <identifier>\n" ++
+ "   :list [<module>] <line>     show the source code around line number <line>\n" ++
  "   :print [<name> ...]         prints a value without forcing its computation\n" ++
  "   :sprint [<name> ...]        simplifed version of :print\n" ++
  "   :step                       single-step after stopping at a breakpoint\n"++
@@ -353,7 +356,8 @@ interactiveUI session srcs maybe_exprs = do
                    last_command = Nothing,
                    cmdqueue = [],
                    remembered_ctx = [],
-                   virtual_path   = cwd
+                   virtual_path   = cwd,
+                   ghc_e = isJust maybe_exprs
                  }
 
 #ifdef USE_EDITLINE
@@ -450,12 +454,8 @@ runGHCi paths maybe_exprs = do
                                    -- current progname in the exception text:
                                    -- <progname>: <exception>
                               io $ withProgName (progname st)
-                                   -- The "fast exit" part just calls exit()
-                                   -- directly instead of doing an orderly
-                                   -- runtime shutdown, otherwise the main
-                                   -- GHCi thread will complain about being
-                                   -- interrupted.
-                                 $ topHandlerFastExit e
+                                   -- this used to be topHandlerFastExit, see #2228
+                                 $ topHandler e
             runCommands' handle (return Nothing)
 
   -- and finally, exit
@@ -726,7 +726,7 @@ afterRunStmt step_here run_result = do
   flushInterpBuffers
   io installSignalHandlers
   b <- isOptionSet RevertCAFs
-  io (when b revertCAFs)
+  when b revertCAFs
 
   return (case run_result of GHC.RunOk _ -> True; _ -> False)
 
@@ -896,7 +896,7 @@ doWithArgs args cmd = enqueueCommands ["System.Environment.withArgs " ++
 
 addModule :: [FilePath] -> GHCi ()
 addModule files = do
-  io (revertCAFs)			-- always revert CAFs on load/add.
+  revertCAFs			-- always revert CAFs on load/add.
   files <- mapM expandPath files
   targets <- mapM (\m -> io (GHC.guessTarget m Nothing)) files
   session <- getSession
@@ -1095,7 +1095,7 @@ doLoad session retain_context prev_context howmuch = do
 
 afterLoad :: SuccessFlag -> Session -> Bool -> ([Module],[Module]) -> GHCi ()
 afterLoad ok session retain_context prev_context = do
-  io (revertCAFs)  -- always revert CAFs on load.
+  revertCAFs  -- always revert CAFs on load.
   discardTickArrays
   loaded_mod_summaries <- getLoadedModules session
   let loaded_mods = map GHC.ms_mod loaded_mod_summaries