Questions

Author: Saizan

haskell-debugger/GHC/Debugger/Monad.hs

@@ -342,6 +342,13 @@ runDebugger l rootDir compDir libdir units ghcInvocation' extraGhcArgs mainFp co
       mainGhcThread :: Ghc a
       mainGhcThread = do
         -- Initializes interpreter!
+        -- FIXME: Do these affect affect the loading of the debugee code? and which ones are required?
+        --
+        -- I guess these are important for it to be debuggable?
+        -- `GHC.gopt_set` GHC.Opt_IgnoreOptimChanges
+        -- `GHC.gopt_set` GHC.Opt_IgnoreHpcChanges
+        -- `GHC.gopt_set` GHC.Opt_UseBytecodeRatherThanObjects
+        -- `GHC.gopt_set` GHC.Opt_InsertBreakpoints
         _ <- GHC.setSessionDynFlags dflags2
 
         -- Initialise plugins here because the plugin author might already expect this

hdb/Development/Debug/Adapter/Init.hs

@@ -142,8 +142,11 @@ initDebugger l supportsRunInTerminal preferInternalInterpreter
           | otherwise -> mempty
 
   liftIO (runExceptT (hieBiosSetup hieBiosLogger projectRoot entryFile)) >>= \case
-    Left e              -> throwError $ InitFailed e
-    Right (Left e)      -> lift       $ terminateWithError e
+    -- FIXME: why are these errors handled differently?
+    Left e              -> throwError $ InitFailed e -- errors while checking ghc version
+    -- FIXME: will crash calling destroyDebugSession, since we haven't registered one yet.
+    Right (Left e)      -> lift       $ terminateWithError e -- errors while getting flags.
+
     Right (Right flags) -> do
 
       let