module HscMain
( newHscEnv, hscCmmFile
, hscParseIdentifier
+ , hscSimplify
+ , evalComp
+ , hscNormalIface, hscWriteIface, hscOneShot
+ , CompState (..)
#ifdef GHCI
, hscStmt, hscTcExpr, hscKcType
, compileExpr
, makeSimpleDetails
) where
-#include "HsVersions.h"
-
#ifdef GHCI
import CodeOutput ( outputForeignStubs )
import ByteCodeGen ( byteCodeGen, coreExprToBCOs )
import Linker ( HValue, linkExpr )
import CoreTidy ( tidyExpr )
import CorePrep ( corePrepExpr )
-import Flattening ( flattenExpr )
import Desugar ( deSugarExpr )
import SimplCore ( simplifyExpr )
import TcRnDriver ( tcRnStmt, tcRnExpr, tcRnType )
import Parser
import Lexer
import SrcLoc ( mkSrcLoc )
-import TcRnDriver ( tcRnModule, tcRnExtCore )
+import TcRnDriver ( tcRnModule )
import TcIface ( typecheckIface )
import TcRnMonad ( initIfaceCheck, TcGblEnv(..) )
import IfaceEnv ( initNameCache )
import HscStats ( ppSourceStats )
import HscTypes
import MkExternalCore ( emitExternalCore )
-import ParserCore
-import ParserCoreUtils
import FastString
-import UniqFM ( emptyUFM )
+import LazyUniqFM ( emptyUFM )
import UniqSupply ( initUs_ )
import Bag ( unitBag )
makeSimpleIface :: HscEnv -> Maybe ModIface -> TcGblEnv -> ModDetails
-> IO (ModIface,Bool)
makeSimpleIface hsc_env maybe_old_iface tc_result details = do
- mkIfaceTc hsc_env maybe_old_iface details tc_result
+ mkIfaceTc hsc_env (fmap mi_iface_hash maybe_old_iface) details tc_result
-- | Make a 'ModDetails' from the results of typechecking. Used when
-- typechecking only, as opposed to full compilation.
-- Compile Haskell, boot and extCore in OneShot mode.
hscCompileOneShot :: Compiler HscStatus
hscCompileOneShot
- = hscCompiler norecompOneShot oneShotMsg backend boot_backend
+ = hscCompiler norecompOneShot oneShotMsg (genComp backend boot_backend)
where
backend inp = hscSimplify inp >>= hscNormalIface >>= hscWriteIface >>= hscOneShot
- boot_backend inp = hscSimpleIface inp >>= hscWriteIface >> return (HscRecomp False)
+ boot_backend inp = hscSimpleIface inp >>= hscWriteIface >> return (Just (HscRecomp False))
-- Compile Haskell, boot and extCore in batch mode.
hscCompileBatch :: Compiler (HscStatus, ModIface, ModDetails)
hscCompileBatch
- = hscCompiler norecompBatch batchMsg backend boot_backend
+ = hscCompiler norecompBatch batchMsg (genComp backend boot_backend)
where
backend inp = hscSimplify inp >>= hscNormalIface >>= hscWriteIface >>= hscBatch
boot_backend inp = hscSimpleIface inp >>= hscWriteIface >>= hscNothing
--- Type-check Haskell, boot and extCore.
--- Does it make sense to compile extCore to nothing?
-hscCompileNothing :: Compiler (HscStatus, ModIface, ModDetails)
-hscCompileNothing
- = hscCompiler norecompBatch batchMsg backend backend
- where
- backend inp = hscSimpleIface inp >>= hscIgnoreIface >>= hscNothing
-
-- Compile Haskell, extCore to bytecode.
hscCompileInteractive :: Compiler (InteractiveStatus, ModIface, ModDetails)
hscCompileInteractive
- = hscCompiler norecompInteractive batchMsg backend boot_backend
+ = hscCompiler norecompInteractive batchMsg (genComp backend boot_backend)
where
backend inp = hscSimplify inp >>= hscNormalIface >>= hscIgnoreIface >>= hscInteractive
- boot_backend = panic "hscCompileInteractive: can't do boot files here"
+ boot_backend _ = panic "hscCompileInteractive: HsBootFile"
+-- Type-check Haskell and .hs-boot only (no external core)
+hscCompileNothing :: Compiler (HscStatus, ModIface, ModDetails)
+hscCompileNothing
+ = hscCompiler norecompBatch batchMsg comp
+ where
+ backend tc = hscSimpleIface tc >>= hscIgnoreIface >>= hscNothing
+
+ comp = do -- genComp doesn't fit here, because we want to omit
+ -- desugaring and for the backend to take a TcGblEnv
+ mod_summary <- gets compModSummary
+ case ms_hsc_src mod_summary of
+ ExtCoreFile -> panic "hscCompileNothing: cannot do external core"
+ _other -> do
+ mb_tc <- hscFileFrontEnd
+ case mb_tc of
+ Nothing -> return Nothing
+ Just tc_result -> backend tc_result
+
hscCompiler
- :: NoRecomp result -- No recomp necessary
- -> (Maybe (Int,Int) -> Bool -> Comp ()) -- Message callback
- -> (ModGuts -> Comp result) -- Compile normal file
- -> (ModGuts -> Comp result) -- Compile boot file
+ :: NoRecomp result -- No recomp necessary
+ -> (Maybe (Int,Int) -> Bool -> Comp ()) -- Message callback
+ -> Comp (Maybe result)
-> Compiler result
-hscCompiler norecomp messenger nonBootComp bootComp hsc_env mod_summary
+hscCompiler norecomp messenger recomp hsc_env mod_summary
source_unchanged mbOldIface mbModIndex
= flip evalComp (CompState hsc_env mod_summary mbOldIface) $
do (recomp_reqd, mbCheckedIface)
return (Just result)
_otherwise
-> do messenger mbModIndex True
- mb_modguts <- frontend
- case mb_modguts of
- Nothing
- -> return Nothing
- Just core
- -> do result <- backend core
- return (Just result)
- where
- frontend :: Comp (Maybe ModGuts) -- Front end
- -- backend :: (ModGuts -> Comp result) -- Backend.
- (frontend,backend)
- = case ms_hsc_src mod_summary of
- ExtCoreFile -> (hscCoreFrontEnd, nonBootComp)
- HsSrcFile -> (hscFileFrontEnd, nonBootComp)
- HsBootFile -> (hscFileFrontEnd, bootComp)
+ recomp
+
+-- the usual way to build the Comp (Maybe result) to pass to hscCompiler
+genComp :: (ModGuts -> Comp (Maybe a))
+ -> (TcGblEnv -> Comp (Maybe a))
+ -> Comp (Maybe a)
+genComp backend boot_backend = do
+ mod_summary <- gets compModSummary
+ case ms_hsc_src mod_summary of
+ ExtCoreFile -> do
+ panic "GHC does not currently support reading External Core files"
+ _not_core -> do
+ mb_tc <- hscFileFrontEnd
+ case mb_tc of
+ Nothing -> return Nothing
+ Just tc_result ->
+ case ms_hsc_src mod_summary of
+ HsBootFile -> boot_backend tc_result
+ _other -> do
+ mb_guts <- hscDesugar tc_result
+ case mb_guts of
+ Nothing -> return Nothing
+ Just guts -> backend guts
--------------------------------------------------------------
-- NoRecomp handlers
norecompWorker :: a -> Bool -> NoRecomp (a, ModIface, ModDetails)
norecompWorker a _isInterp old_iface
= do hsc_env <- gets compHscEnv
- _mod_summary <- gets compModSummary
liftIO $ do
new_details <- {-# SCC "tcRnIface" #-}
initIfaceCheck hsc_env $
--------------------------------------------------------------
-- FrontEnds
--------------------------------------------------------------
-
-hscCoreFrontEnd :: Comp (Maybe ModGuts)
-hscCoreFrontEnd =
- do hsc_env <- gets compHscEnv
- mod_summary <- gets compModSummary
- liftIO $ do
- -------------------
- -- PARSE
- -------------------
- inp <- readFile (ms_hspp_file mod_summary)
- case parseCore inp 1 of
- FailP s
- -> do errorMsg (hsc_dflags hsc_env) (text s{-ToDo: wrong-})
- return Nothing
- OkP rdr_module
- -------------------
- -- RENAME and TYPECHECK
- -------------------
- -> do (tc_msgs, maybe_tc_result) <- {-# SCC "TypeCheck" #-}
- tcRnExtCore hsc_env rdr_module
- printErrorsAndWarnings (hsc_dflags hsc_env) tc_msgs
- case maybe_tc_result of
- Nothing -> return Nothing
- Just mod_guts -> return (Just mod_guts) -- No desugaring to do!
-
-
-hscFileFrontEnd :: Comp (Maybe ModGuts)
+hscFileFrontEnd :: Comp (Maybe TcGblEnv)
hscFileFrontEnd =
do hsc_env <- gets compHscEnv
mod_summary <- gets compModSummary
<- {-# SCC "Typecheck-Rename" #-}
tcRnModule hsc_env (ms_hsc_src mod_summary) False rdr_module
printErrorsAndWarnings dflags tc_msgs
- case maybe_tc_result of
- Nothing
- -> return Nothing
- Just tc_result
- -------------------
- -- DESUGAR
- -------------------
- -> {-# SCC "DeSugar" #-} deSugar hsc_env (ms_location mod_summary) tc_result
+ return maybe_tc_result
+
+--------------------------------------------------------------
+-- Desugaring
+--------------------------------------------------------------
+
+hscDesugar :: TcGblEnv -> Comp (Maybe ModGuts)
+hscDesugar tc_result
+ = do mod_summary <- gets compModSummary
+ hsc_env <- gets compHscEnv
+ liftIO $ do
+ -------------------
+ -- DESUGAR
+ -------------------
+ ds_result <- {-# SCC "DeSugar" #-}
+ deSugar hsc_env (ms_location mod_summary) tc_result
+ return ds_result
--------------------------------------------------------------
-- Simplifiers
-- HACK: we return ModGuts even though we know it's not gonna be used.
-- We do this because the type signature needs to be identical
-- in structure to the type of 'hscNormalIface'.
-hscSimpleIface :: ModGuts -> Comp (ModIface, Bool, ModDetails, ModGuts)
-hscSimpleIface ds_result
+hscSimpleIface :: TcGblEnv -> Comp (ModIface, Bool, ModDetails, TcGblEnv)
+hscSimpleIface tc_result
= do hsc_env <- gets compHscEnv
- _mod_summary <- gets compModSummary
maybe_old_iface <- gets compOldIface
liftIO $ do
- details <- mkBootModDetailsDs hsc_env ds_result
+ details <- mkBootModDetailsTc hsc_env tc_result
(new_iface, no_change)
<- {-# SCC "MkFinalIface" #-}
- mkIface hsc_env maybe_old_iface details ds_result
+ mkIfaceTc hsc_env (fmap mi_iface_hash maybe_old_iface) details tc_result
-- And the answer is ...
dumpIfaceStats hsc_env
- return (new_iface, no_change, details, ds_result)
+ return (new_iface, no_change, details, tc_result)
hscNormalIface :: ModGuts -> Comp (ModIface, Bool, ModDetails, CgGuts)
hscNormalIface simpl_result
-- until after code output
(new_iface, no_change)
<- {-# SCC "MkFinalIface" #-}
- mkIface hsc_env maybe_old_iface details simpl_result
+ mkIface hsc_env (fmap mi_iface_hash maybe_old_iface)
+ details simpl_result
-- Emit external core
- emitExternalCore (hsc_dflags hsc_env) (availsToNameSet (mg_exports simpl_result)) cg_guts -- Move this? --Lemmih 03/07/2006
+ -- This should definitely be here and not after CorePrep,
+ -- because CorePrep produces unqualified constructor wrapper declarations,
+ -- so its output isn't valid External Core (without some preprocessing).
+ emitExternalCore (hsc_dflags hsc_env) cg_guts
dumpIfaceStats hsc_env
-------------------
= return (iface, details, a)
-- Don't output any code.
-hscNothing :: (ModIface, ModDetails, a) -> Comp (HscStatus, ModIface, ModDetails)
+hscNothing :: (ModIface, ModDetails, a) -> Comp (Maybe (HscStatus, ModIface, ModDetails))
hscNothing (iface, details, _)
- = return (HscRecomp False, iface, details)
+ = return (Just (HscRecomp False, iface, details))
-- Generate code and return both the new ModIface and the ModDetails.
-hscBatch :: (ModIface, ModDetails, CgGuts) -> Comp (HscStatus, ModIface, ModDetails)
+hscBatch :: (ModIface, ModDetails, CgGuts) -> Comp (Maybe (HscStatus, ModIface, ModDetails))
hscBatch (iface, details, cgguts)
= do hasStub <- hscCompile cgguts
- return (HscRecomp hasStub, iface, details)
+ return (Just (HscRecomp hasStub, iface, details))
-- Here we don't need the ModIface and ModDetails anymore.
-hscOneShot :: (ModIface, ModDetails, CgGuts) -> Comp HscStatus
+hscOneShot :: (ModIface, ModDetails, CgGuts) -> Comp (Maybe HscStatus)
hscOneShot (_, _, cgguts)
= do hasStub <- hscCompile cgguts
- return (HscRecomp hasStub)
+ return (Just (HscRecomp hasStub))
-- Compile to hard-code.
hscCompile :: CgGuts -> Comp Bool
return stub_c_exists
hscInteractive :: (ModIface, ModDetails, CgGuts)
- -> Comp (InteractiveStatus, ModIface, ModDetails)
+ -> Comp (Maybe (InteractiveStatus, ModIface, ModDetails))
#ifdef GHCI
hscInteractive (iface, details, cgguts)
= do hsc_env <- gets compHscEnv
------------------ Create f-x-dynamic C-side stuff ---
(_istub_h_exists, istub_c_exists)
<- outputForeignStubs dflags this_mod location foreign_stubs
- return (InteractiveRecomp istub_c_exists comp_bc mod_breaks, iface, details)
+ return (Just (InteractiveRecomp istub_c_exists comp_bc mod_breaks, iface, details))
#else
hscInteractive _ = panic "GHC not compiled with interpreter"
#endif
buf <- stringToStringBuffer str
- let loc = mkSrcLoc FSLIT("<interactive>") 1 0
+ let loc = mkSrcLoc (fsLit "<interactive>") 1 0
case unP parser (mkPState buf loc dflags) of {
= do { let { dflags = hsc_dflags hsc_env ;
lint_on = dopt Opt_DoCoreLinting dflags }
- -- Flatten it
- ; flat_expr <- flattenExpr hsc_env ds_expr
-
-- Simplify it
- ; simpl_expr <- simplifyExpr dflags flat_expr
+ ; simpl_expr <- simplifyExpr dflags ds_expr
-- Tidy it (temporary, until coreSat does cloning)
; let tidy_expr = tidyExpr emptyTidyEnv simpl_expr
projects / ghc-hetmet.git / blobdiff