add defaultObjectTarget to the GHC API

[ghc-hetmet.git] / compiler / main / DynFlags.hs

diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index f10d2f9..e5153ea 100644 (file)
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -17,7 +17,7 @@ module DynFlags (
        -- Dynamic flags
        DynFlag(..),
        DynFlags(..),
-       HscTarget(..), isObjectTarget,
+       HscTarget(..), isObjectTarget, defaultObjectTarget,
        GhcMode(..), isOneShot,
        GhcLink(..), isNoLink,
        PackageFlag(..),
@@ -85,10 +85,6 @@ import Util          ( split )
 import Data.Char       ( isUpper )
 import System.IO        ( hPutStrLn, stderr )
 
-#ifdef GHCI
-import Breakpoints      ( BkptHandler )
-import Module           ( ModuleName )
-#endif
 -- -----------------------------------------------------------------------------
 -- DynFlags
 
@@ -152,6 +148,7 @@ data DynFlag
    | Opt_WarnOverlappingPatterns
    | Opt_WarnSimplePatterns
    | Opt_WarnTypeDefaults
+   | Opt_WarnMonomorphism
    | Opt_WarnUnusedBinds
    | Opt_WarnUnusedImports
    | Opt_WarnUnusedMatches
@@ -195,6 +192,7 @@ data DynFlag
    | Opt_CaseMerge
    | Opt_UnboxStrictFields
    | Opt_DictsCheap
+   | Opt_RewriteRules
 
    -- misc opts
    | Opt_Cpp
@@ -208,9 +206,6 @@ data DynFlag
    | Opt_SplitObjs
    | Opt_StgStats
    | Opt_HideAllPackages
-#if defined(GHCI) && defined(DEBUGGER)
-   | Opt_Debugging
-#endif
    | Opt_PrintBindResult
    | Opt_Haddock
    | Opt_Hpc_No_Auto
@@ -321,11 +316,6 @@ data DynFlags = DynFlags {
   
   -- message output
   log_action            :: Severity -> SrcSpan -> PprStyle -> Message -> IO ()
-
-#ifdef GHCI
-  -- breakpoint handling
- ,bkptHandler           :: Maybe (BkptHandler Module)
-#endif
  }
 
 data HscTarget
@@ -376,7 +366,11 @@ data PackageFlag
   | IgnorePackage  String
   deriving Eq
 
-defaultHscTarget
+defaultHscTarget = defaultObjectTarget
+
+-- | the 'HscTarget' value corresponding to the default way to create
+-- object files on the current platform.
+defaultObjectTarget
   | cGhcWithNativeCodeGen == "YES"     =  HscAsm
   | otherwise                          =  HscC
 
@@ -446,9 +440,6 @@ defaultDynFlags =
        packageFlags            = [],
         pkgDatabase             = Nothing,
         pkgState                = panic "no package state yet: call GHC.setSessionDynFlags",
-#ifdef GHCI
-        bkptHandler             = Nothing,
-#endif
        flags = [ 
            Opt_ReadUserPackageConf,
     
@@ -574,12 +565,16 @@ optLevelFlags :: [([Int], DynFlag)]
 optLevelFlags
   = [ ([0],    Opt_IgnoreInterfacePragmas)
     , ([0],     Opt_OmitInterfacePragmas)
+
     , ([1,2],  Opt_IgnoreAsserts)
+    , ([1,2],  Opt_RewriteRules)       -- Off for -O0; see Note [Scoping for Builtin rules]
+                                       --              in PrelRules
     , ([1,2],  Opt_DoEtaReduction)
     , ([1,2],  Opt_CaseMerge)
     , ([1,2],  Opt_Strictness)
     , ([1,2],  Opt_CSE)
     , ([1,2],  Opt_FullLaziness)
+
     , ([2],    Opt_LiberateCase)
     , ([2],    Opt_SpecConstr)
 
@@ -1038,6 +1033,7 @@ fFlags = [
   ( "warn-overlapping-patterns",       Opt_WarnOverlappingPatterns ),
   ( "warn-simple-patterns",            Opt_WarnSimplePatterns ),
   ( "warn-type-defaults",              Opt_WarnTypeDefaults ),
+  ( "warn-monomorphism-restriction",           Opt_WarnMonomorphism ),
   ( "warn-unused-binds",               Opt_WarnUnusedBinds ),
   ( "warn-unused-imports",             Opt_WarnUnusedImports ),
   ( "warn-unused-matches",             Opt_WarnUnusedMatches ),
@@ -1079,11 +1075,9 @@ fFlags = [
   ( "excess-precision",                        Opt_ExcessPrecision ),
   ( "asm-mangling",                    Opt_DoAsmMangling ),
   ( "print-bind-result",               Opt_PrintBindResult ),
-#if defined(GHCI) && defined(DEBUGGER)
-  ( "debugging",                        Opt_Debugging),
-#endif
   ( "force-recomp",                    Opt_ForceRecomp ),
-  ( "hpc-no-auto",                     Opt_Hpc_No_Auto )
+  ( "hpc-no-auto",                     Opt_Hpc_No_Auto ),
+  ( "rewrite-rules",                   Opt_RewriteRules )
   ]