\section[GHC_Main]{Main driver for Glasgow Haskell compiler}
\begin{code}
-module HscMain ( HscResult(..), hscMain,
+module HscMain ( HscResult(..), hscMain,
#ifdef GHCI
hscStmt, hscThing, hscModuleContents,
#endif
#ifdef GHCI
import Interpreter
import ByteCodeGen ( byteCodeGen )
-import CoreTidy ( tidyCoreExpr )
+import TidyPgm ( tidyCoreExpr )
import CorePrep ( corePrepExpr )
-import Rename ( renameStmt, renameRdrName, slurpIface )
+import Rename ( renameStmt, renameRdrName, slurpIface )
import RdrName ( rdrNameOcc, setRdrNameOcc )
import RdrHsSyn ( RdrNameStmt )
import OccName ( dataName, tcClsName,
import Type ( Type )
import Id ( Id, idName, setGlobalIdDetails )
import IdInfo ( GlobalIdDetails(VanillaGlobal) )
-import Name ( isLocalName )
+import Name ( isInternalName )
import NameEnv ( lookupNameEnv )
+import Module ( lookupModuleEnv )
import RdrName ( rdrEnvElts )
import PrelNames ( iNTERACTIVE )
import StringBuffer ( stringToStringBuffer )
-import FastString ( mkFastString )
import Maybes ( catMaybes )
import List ( nub )
import IdInfo ( CafInfo(..), CgInfoEnv, CgInfo(..) )
import StringBuffer ( hGetStringBuffer, freeStringBuffer )
import Parser
-import Lex ( PState(..), ParseResult(..) )
+import Lex ( ParseResult(..), ExtFlags(..), mkPState )
import SrcLoc ( mkSrcLoc )
import Finder ( findModule )
-import Rename ( checkOldIface, renameModule, closeIfaceDecls )
+import Rename ( checkOldIface, renameModule, renameExtCore,
+ closeIfaceDecls, RnResult(..) )
import Rules ( emptyRuleBase )
import PrelInfo ( wiredInThingEnv, wiredInThings )
import PrelRules ( builtinRules )
-import PrelNames ( knownKeyNames )
+import PrelNames ( knownKeyNames, gHC_PRIM_Name )
import MkIface ( mkFinalIface )
import TcModule
import InstEnv ( emptyInstEnv )
import Desugar
+import Flattening ( flatten, flattenExpr )
import SimplCore
import CoreUtils ( coreBindsSize )
-import CoreTidy ( tidyCorePgm )
+import TidyPgm ( tidyCorePgm )
import CorePrep ( corePrepPgm )
import StgSyn
import CoreToStg ( coreToStg )
import SimplStg ( stg2stg )
import CodeGen ( codeGen )
-import CodeOutput ( codeOutput )
+import CodeOutput ( codeOutput, outputForeignStubs )
-import Module ( ModuleName, moduleName, mkHomeModule,
- moduleUserString, lookupModuleEnv )
+import Module ( ModuleName, moduleName, mkHomeModule )
import CmdLineOpts
+import DriverState ( v_HCHeader )
+import DriverPhases ( isExtCore_file )
import ErrUtils ( dumpIfSet_dyn, showPass, printError )
import Util ( unJust )
import UniqSupply ( mkSplitUniqSupply )
import HscTypes
import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM )
import OccName ( OccName )
-import Name ( Name, nameModule, nameOccName, getName, isGlobalName )
+import Name ( Name, nameModule, nameOccName, getName )
import NameEnv ( emptyNameEnv, mkNameEnv )
import Module ( Module )
-import IOExts ( newIORef, readIORef, writeIORef, unsafePerformIO )
+import IOExts ( newIORef, readIORef, writeIORef,
+ unsafePerformIO )
import Monad ( when )
import Maybe ( isJust, fromJust )
import IO
import MkExternalCore ( emitExternalCore )
+import ParserCore
+import ParserCoreUtils
+
\end{code}
(pcs_ch, errs_found, (recomp_reqd, maybe_checked_iface))
<- _scc_ "checkOldIface"
- checkOldIface ghci_mode dflags hit hst pcs (ml_hi_file location)
+ checkOldIface ghci_mode dflags hit hst pcs mod (ml_hi_file location)
source_unchanged maybe_old_iface;
if errs_found then
mod location maybe_checked_iface hst hit pcs_ch
= do {
-- what target are we shooting for?
- ; let toInterp = dopt_HscLang dflags == HscInterpreted
+ ; let toInterp = dopt_HscLang dflags == HscInterpreted
; let toNothing = dopt_HscLang dflags == HscNothing
+ ; let toCore = isJust (ml_hs_file location) &&
+ isExtCore_file (fromJust (ml_hs_file location))
; when (ghci_mode /= OneShot && verbosity dflags >= 1) $
hPutStrLn stderr ("Compiling " ++
showModMsg (not toInterp) mod location);
-
- -------------------
- -- PARSE
- -------------------
- ; maybe_parsed <- myParseModule dflags
- (unJust "hscRecomp:hspp" (ml_hspp_file location))
- ; case maybe_parsed of {
- Nothing -> return (HscFail pcs_ch);
- Just rdr_module -> do {
- ; let this_mod = mkHomeModule (hsModuleName rdr_module)
-
+
+ ; front_res <-
+ (if toCore then hscCoreFrontEnd else hscFrontEnd)
+ ghci_mode dflags location hst hit pcs_ch
+ ; case front_res of
+ Left flure -> return flure;
+ Right (this_mod, rdr_module,
+ Just (dont_discard, new_iface, rn_result),
+ pcs_tc, ds_details, foreign_stuff) -> do {
-------------------
- -- RENAME
+ -- FLATTENING
-------------------
- ; (pcs_rn, print_unqualified, maybe_rn_result)
- <- _scc_ "Rename"
- renameModule dflags hit hst pcs_ch this_mod rdr_module
- ; case maybe_rn_result of {
- Nothing -> return (HscFail pcs_ch{-was: pcs_rn-});
- Just (is_exported, new_iface, rn_hs_decls) -> do {
-
- -- In interactive mode, we don't want to discard any top-level
- -- entities at all (eg. do not inline them away during
- -- simplification), and retain them all in the TypeEnv so they are
- -- available from the command line.
- --
- -- isGlobalName separates the user-defined top-level names from those
- -- introduced by the type checker.
-
- ; let dont_discard | ghci_mode == Interactive = isGlobalName
- | otherwise = is_exported
-
- -------------------
- -- TYPECHECK
- -------------------
- ; maybe_tc_result
- <- _scc_ "TypeCheck"
- typecheckModule dflags pcs_rn hst new_iface
- print_unqualified rn_hs_decls
- ; case maybe_tc_result of {
- Nothing -> return (HscFail pcs_ch{-was: pcs_rn-});
- Just (pcs_tc, tc_result) -> do {
-
- -------------------
- -- DESUGAR
- -------------------
- ; (ds_details, foreign_stuff)
- <- _scc_ "DeSugar"
- deSugar dflags pcs_tc hst this_mod print_unqualified tc_result
+ ; flat_details
+ <- _scc_ "Flattening"
+ flatten dflags pcs_tc hst ds_details
; pcs_middle
<- _scc_ "pcs_middle"
-------------------
; simpl_details
<- _scc_ "Core2Core"
- core2core dflags pcs_middle hst dont_discard ds_details
+ core2core dflags pcs_middle hst dont_discard flat_details
-------------------
-- TIDY
local_tycons = typeEnvTyCons env_tc
local_classes = typeEnvClasses env_tc
- imported_module_names = map ideclName (hsModuleImports rdr_module)
+ imported_module_names =
+ filter (/= gHC_PRIM_Name) $
+ map ideclName (hsModuleImports rdr_module)
+ -- eek! doesn't this keep rdr_module live until code generation?
+ -- SDM 3/2002
mod_name_to_Module nm
= do m <- findModule nm ; return (fst (fromJust m))
- (h_code,c_code,fe_binders) = foreign_stuff
+ (h_code, c_code, headers, fe_binders) = foreign_stuff
+
+ -- turn the list of headers requested in foreign import
+ -- declarations into a string suitable for emission into generated
+ -- C code...
+ --
+ foreign_headers =
+ unlines
+ . map (\fname -> "#include \"" ++ _UNPK_ fname ++ "\"")
+ . reverse
+ $ headers
+
+ -- ...and add the string to the headers requested via command line
+ -- options
+ --
+ ; fhdrs <- readIORef v_HCHeader
+ ; writeIORef v_HCHeader (fhdrs ++ foreign_headers)
; imported_modules <- mapM mod_name_to_Module imported_module_names
mkFinalIface ghci_mode dflags location
maybe_checked_iface new_iface tidy_details
- return ( False, False, Just (bcos,itbl_env), final_iface )
+ ------------------ Create f-x-dynamic C-side stuff ---
+ (istub_h_exists, istub_c_exists)
+ <- outputForeignStubs dflags c_code h_code
+
+ return ( istub_h_exists, istub_c_exists,
+ Just (bcos,itbl_env), final_iface )
#else
then error "GHC not compiled with interpreter"
#endif
final_iface
stub_h_exists stub_c_exists
maybe_bcos)
- }}}}}}}
+ }}
+
+hscCoreFrontEnd ghci_mode dflags location hst hit pcs_ch = do {
+ -------------------
+ -- PARSE
+ -------------------
+ ; inp <- readFile (unJust "hscCoreFrontEnd:hspp" (ml_hspp_file location))
+ ; case parseCore inp 1 of
+ FailP s -> hPutStrLn stderr s >> return (Left (HscFail pcs_ch));
+ OkP rdr_module -> do {
+ ; let this_mod = mkHomeModule (hsModuleName rdr_module)
+
+ -------------------
+ -- RENAME
+ -------------------
+ ; (pcs_rn, print_unqual, maybe_rn_result)
+ <- renameExtCore dflags hit hst pcs_ch this_mod rdr_module
+ ; case maybe_rn_result of {
+ Nothing -> return (Left (HscFail pcs_ch));
+ Just (dont_discard, new_iface, rn_result) -> do {
+
+ -------------------
+ -- TYPECHECK
+ -------------------
+ ; maybe_tc_result
+ <- _scc_ "TypeCheck"
+ typecheckCoreModule dflags pcs_rn hst new_iface (rr_decls rn_result)
+ ; case maybe_tc_result of {
+ Nothing -> return (Left (HscFail pcs_ch));
+ Just (pcs_tc, ty_env, core_binds) -> do {
+
+ -------------------
+ -- DESUGAR
+ -------------------
+ ; (ds_details, foreign_stuff) <- deSugarCore ty_env core_binds
+ ; return (Right (this_mod, rdr_module, maybe_rn_result,
+ pcs_tc, ds_details, foreign_stuff))
+ }}}}}}
+
+
+hscFrontEnd ghci_mode dflags location hst hit pcs_ch = do {
+ -------------------
+ -- PARSE
+ -------------------
+ ; maybe_parsed <- myParseModule dflags
+ (unJust "hscRecomp:hspp" (ml_hspp_file location))
+ ; case maybe_parsed of {
+ Nothing -> return (Left (HscFail pcs_ch));
+ Just rdr_module -> do {
+ ; let this_mod = mkHomeModule (hsModuleName rdr_module)
+
+ -------------------
+ -- RENAME
+ -------------------
+ ; (pcs_rn, print_unqual, maybe_rn_result)
+ <- _scc_ "Rename"
+ renameModule dflags ghci_mode hit hst pcs_ch this_mod rdr_module
+ ; case maybe_rn_result of {
+ Nothing -> return (Left (HscFail pcs_ch));
+ Just (dont_discard, new_iface, rn_result) -> do {
+
+ -------------------
+ -- TYPECHECK
+ -------------------
+ ; maybe_tc_result
+ <- _scc_ "TypeCheck"
+ typecheckModule dflags pcs_rn hst print_unqual rn_result
+ ; case maybe_tc_result of {
+ Nothing -> return (Left (HscFail pcs_ch));
+ Just (pcs_tc, tc_result) -> do {
+
+ -------------------
+ -- DESUGAR
+ -------------------
+ ; (ds_details, foreign_stuff)
+ <- _scc_ "DeSugar"
+ deSugar dflags pcs_tc hst this_mod print_unqual tc_result
+ ; return (Right (this_mod, rdr_module, maybe_rn_result,
+ pcs_tc, ds_details, foreign_stuff))
+ }}}}}}}
+
myParseModule dflags src_filename
= do -------------------------- Parser ----------------
showPass dflags "Parser"
_scc_ "Parser" do
+ buf <- hGetStringBuffer src_filename
- buf <- hGetStringBuffer True{-expand tabs-} src_filename
+ let exts = ExtFlags {glasgowExtsEF = dopt Opt_GlasgowExts dflags,
+ parrEF = dopt Opt_PArr dflags}
+ loc = mkSrcLoc (_PK_ src_filename) 1
- let glaexts | dopt Opt_GlasgowExts dflags = 1#
- | otherwise = 0#
-
- case parseModule buf PState{ bol = 0#, atbol = 1#,
- context = [], glasgow_exts = glaexts,
- loc = mkSrcLoc (_PK_ src_filename) 1 } of {
+ case parseModule buf (mkPState loc exts) of {
PFailed err -> do { hPutStrLn stderr (showSDoc err);
freeStringBuffer buf;
-- Desugar it
ds_expr <- deSugarExpr dflags pcs2 hst iNTERACTIVE print_unqual tc_expr
+ -- Flatten it
+ ; flat_expr <- flattenExpr dflags pcs2 hst ds_expr
+
-- Simplify it
- ; simpl_expr <- simplifyExpr dflags pcs2 hst ds_expr
+ ; simpl_expr <- simplifyExpr dflags pcs2 hst flat_expr
-- Tidy it (temporary, until coreSat does cloning)
; tidy_expr <- tidyCoreExpr simpl_expr
buf <- stringToStringBuffer str
- let glaexts | dopt Opt_GlasgowExts dflags = 1#
- | otherwise = 0#
+ let exts = ExtFlags {glasgowExtsEF = dopt Opt_GlasgowExts dflags,
+ parrEF = dopt Opt_PArr dflags}
+ loc = mkSrcLoc SLIT("<interactive>") 1
- case parseStmt buf PState{ bol = 0#, atbol = 1#,
- context = [], glasgow_exts = glaexts,
- loc = mkSrcLoc SLIT("<interactive>") 1 } of {
+ case parseStmt buf (mkPState loc exts) of {
PFailed err -> do { hPutStrLn stderr (showSDoc err);
-- Not yet implemented in <4.11 freeStringBuffer buf;
Nothing -> return (pcs, []);
Just pcs ->
let do_lookup n
- | isLocalName n = lookupNameEnv (ic_type_env ic) n
+ | isInternalName n = lookupNameEnv (ic_type_env ic) n
| otherwise = lookupType hst (pcs_PTE pcs) n
maybe_ty_things = map do_lookup names
myParseIdentifier dflags str
= do buf <- stringToStringBuffer str
- let glaexts | dopt Opt_GlasgowExts dflags = 1#
- | otherwise = 0#
+ let exts = ExtFlags {glasgowExtsEF = dopt Opt_GlasgowExts dflags,
+ parrEF = dopt Opt_PArr dflags}
+ loc = mkSrcLoc SLIT("<interactive>") 1
- case parseIdentifier buf
- PState{ bol = 0#, atbol = 1#,
- context = [], glasgow_exts = glaexts,
- loc = mkSrcLoc SLIT("<interactive>") 1 } of
+ case parseIdentifier buf (mkPState loc exts) of
PFailed err -> do { hPutStrLn stderr (showSDoc err);
freeStringBuffer buf;
projects / ghc-hetmet.git / blobdiff