#include "HsVersions.h"
-import IO ( hPutStr, stderr )
+import Maybe ( isJust )
+import Monad ( when )
+import IO ( hPutStr, hPutStrLn, hClose, stderr,
+ openFile, IOMode(..) )
import HsSyn
import RdrHsSyn ( RdrNameHsModule )
import Lex ( PState(..), ParseResult(..) )
import SrcLoc ( mkSrcLoc )
-import Rename ( renameModule )
+import Rename ( renameModule, checkOldIface, closeIfaceDecls )
+import Rules ( emptyRuleBase )
import PrelInfo ( wiredInThings )
+import PrelNames ( knownKeyNames )
import PrelRules ( builtinRules )
-import MkIface ( writeIface )
+import MkIface ( completeIface, mkModDetailsFromIface, mkModDetails,
+ writeIface )
import TcModule ( TcResults(..), typecheckModule )
+import TcEnv ( tcEnvTyCons, tcEnvClasses )
+import InstEnv ( emptyInstEnv )
import Desugar ( deSugar )
import SimplCore ( core2core )
import OccurAnal ( occurAnalyseBinds )
import CodeGen ( codeGen )
import CodeOutput ( codeOutput )
-import Module ( ModuleName, moduleNameUserString )
+import Module ( ModuleName, moduleNameUserString,
+ moduleUserString, moduleName, emptyModuleEnv )
import CmdLineOpts
-import ErrUtils ( ghcExit, doIfSet, dumpIfSet )
+import ErrUtils ( ghcExit, doIfSet, dumpIfSet_dyn )
import UniqSupply ( mkSplitUniqSupply )
+import Bag ( emptyBag )
import Outputable
import Char ( isSpace )
-import StgInterp ( runStgI )
+import StgInterp ( stgToInterpSyn )
import HscStats ( ppSourceStats )
+import HscTypes ( ModDetails, ModIface, PersistentCompilerState(..),
+ PersistentRenamerState(..), WhatsImported(..),
+ HomeSymbolTable, PackageSymbolTable, ImportVersion,
+ GenAvailInfo(..), RdrAvailInfo, OrigNameEnv(..),
+ PackageRuleBase, HomeIfaceTable, PackageIfaceTable,
+ extendTypeEnv )
+import RnMonad ( ExportItem, ParsedIface(..) )
+import CmSummarise ( ModSummary(..), name_of_summary, ms_get_imports )
+import Finder ( Finder )
+import InterpSyn ( UnlinkedIBind )
+import StgInterp ( ItblEnv )
+import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM )
+import OccName ( OccName, pprOccName )
+import Name ( Name, nameModule, emptyNameEnv, nameOccName,
+ getName, extendNameEnv_C )
+import VarEnv ( emptyVarEnv )
\end{code}
(Maybe ModIface) -- new iface (if any compilation was done)
(Maybe String) -- generated stub_h filename (in /tmp)
(Maybe String) -- generated stub_c filename (in /tmp)
- (Maybe [UnlinkedIBind]) -- interpreted code, if any
+ (Maybe ([UnlinkedIBind],ItblEnv)) -- interpreted code, if any
PersistentCompilerState -- updated PCS
- (Bag WarnMsg) -- warnings
- | HscErrs PersistentCompilerState -- updated PCS
- (Bag ErrMsg) -- errors
- (Bag WarnMsg) -- warnings
+ | HscFail PersistentCompilerState -- updated PCS
+ -- no errors or warnings; the individual passes
+ -- (parse/rename/typecheck) print messages themselves
hscMain
- :: DynFlags
+ :: DynFlags
+ -> Finder
-> ModSummary -- summary, including source filename
- -> Maybe ModIFace -- old interface, if available
+ -> Maybe ModIface -- old interface, if available
-> String -- file in which to put the output (.s, .hc, .java etc.)
+ -> [CoreToDo]
+ -> [StgToDo]
-> HomeSymbolTable -- for home module ModDetails
+ -> HomeIfaceTable
+ -> PackageIfaceTable
-> PersistentCompilerState -- IN: persistent compiler state
-> IO HscResult
-hscMain flags core_cmds stg_cmds summary maybe_old_iface
- output_filename mod_details pcs1 =
-
- -------------------------- Reader ----------------
- show_pass "Parser" >>
- _scc_ "Parser"
-
- let src_filename -- name of the preprocessed source file
- = case ms_ppsource summary of
- Just (filename, fingerprint) -> filename
- Nothing -> pprPanic "hscMain:summary is not of a source module"
- (ppr summary)
-
- buf <- hGetStringBuffer True{-expand tabs-} src_filename
-
- let glaexts | opt_GlasgowExts = 1#
- | otherwise = 0#
-
- case parse buf PState{ bol = 0#, atbol = 1#,
- context = [], glasgow_exts = glaexts,
- loc = mkSrcLoc src_filename 1 } of {
-
- PFailed err -> return (CompErrs pcs err)
-
- POk _ rdr_module@(HsModule mod_name _ _ _ _ _ _) ->
-
- dumpIfSet (dopt_D_dump_parsed flags) "Parser" (ppr rdr_module) >>
-
- dumpIfSet (dopt_D_source_stats flags) "Source Statistics"
- (ppSourceStats False rdr_module) >>
-
- -- UniqueSupplies for later use (these are the only lower case uniques)
- mkSplitUniqSupply 'd' >>= \ ds_uniqs -> -- desugarer
- mkSplitUniqSupply 'r' >>= \ ru_uniqs -> -- rules
- mkSplitUniqSupply 'c' >>= \ c2s_uniqs -> -- core-to-stg
- mkSplitUniqSupply 'u' >>= \ tidy_uniqs -> -- tidy up
- mkSplitUniqSupply 'g' >>= \ st_uniqs -> -- stg-to-stg passes
- mkSplitUniqSupply 'n' >>= \ ncg_uniqs -> -- native-code generator
-
- -------------------------- Rename ----------------
- show_pass "Renamer" >>
- _scc_ "Renamer"
-
- renameModule rn_uniqs rdr_module >>= \ maybe_rn_stuff ->
- case maybe_rn_stuff of {
- Nothing -> -- Hurrah! Renamer reckons that there's no need to
- -- go any further
- reportCompile mod_name "Compilation NOT required!" >>
- return ();
-
- Just (this_mod, rn_mod,
- old_iface, new_iface,
- rn_name_supply, fixity_env,
- imported_modules) ->
- -- Oh well, we've got to recompile for real
-
-
- -------------------------- Typechecking ----------------
- show_pass "TypeCheck" >>
- _scc_ "TypeCheck"
- typecheckModule dflags mod pcs hst hit pit rn_mod
- -- tc_uniqs rn_name_supply
- -- fixity_env rn_mod
- >>= \ maybe_tc_stuff ->
- case maybe_tc_stuff of {
- Nothing -> ghcExit 1; -- Type checker failed
-
- Just (tc_results@(TcResults {tc_tycons = local_tycons,
- tc_classes = local_classes,
- tc_insts = inst_info })) ->
-
-
- -------------------------- Desugaring ----------------
- _scc_ "DeSugar"
- deSugar this_mod ds_uniqs tc_results >>= \ (desugared, rules, h_code, c_code, fe_binders) ->
-
-
- -------------------------- Main Core-language transformations ----------------
- _scc_ "Core2Core"
- core2core core_cmds desugared rules >>= \ (simplified, orphan_rules) ->
-
- -- Do the final tidy-up
- tidyCorePgm tidy_uniqs this_mod
- simplified orphan_rules >>= \ (tidy_binds, tidy_orphan_rules) ->
-
- -- Run the occurrence analyser one last time, so that
- -- dead binders get dead-binder info. This is exploited by
- -- code generators to avoid spitting out redundant bindings.
- -- The occurrence-zapping in Simplify.simplCaseBinder means
- -- that the Simplifier nukes useful dead-var stuff especially
- -- in case patterns.
- let occ_anal_tidy_binds = occurAnalyseBinds tidy_binds in
-
- coreBindsSize occ_anal_tidy_binds `seq`
--- TEMP: the above call zaps some space usage allocated by the
--- simplifier, which for reasons I don't understand, persists
--- thoroughout code generation
-
-
-
- -------------------------- Convert to STG code -------------------------------
- show_pass "Core2Stg" >>
- _scc_ "Core2Stg"
- let
- stg_binds = topCoreBindsToStg c2s_uniqs occ_anal_tidy_binds
- in
-
- -------------------------- Simplify STG code -------------------------------
- show_pass "Stg2Stg" >>
- _scc_ "Stg2Stg"
- stg2stg stg_cmds this_mod st_uniqs stg_binds >>= \ (stg_binds2, cost_centre_info) ->
-
-#ifdef GHCI
- runStgI local_tycons local_classes
- (map fst stg_binds2) >>= \ i_result ->
- putStr ("\nANSWER = " ++ show i_result ++ "\n\n")
- >>
-
-#else
- -------------------------- Interface file -------------------------------
- -- Dump instance decls and type signatures into the interface file
- _scc_ "Interface"
- let
- final_ids = collectFinalStgBinders (map fst stg_binds2)
- in
- writeIface this_mod old_iface new_iface
- local_tycons local_classes inst_info
- final_ids occ_anal_tidy_binds tidy_orphan_rules >>
-
-
- -------------------------- Code generation -------------------------------
- show_pass "CodeGen" >>
- _scc_ "CodeGen"
- codeGen this_mod imported_modules
- cost_centre_info
- fe_binders
- local_tycons local_classes
- stg_binds2 >>= \ abstractC ->
-
-
- -------------------------- Code output -------------------------------
- show_pass "CodeOutput" >>
- _scc_ "CodeOutput"
- codeOutput this_mod local_tycons local_classes
- occ_anal_tidy_binds stg_binds2
- c_code h_code abstractC
- ncg_uniqs >>
-
-
- -------------------------- Final report -------------------------------
- reportCompile mod_name (showSDoc (ppSourceStats True rdr_module)) >>
-
-#endif
-
-
- ghcExit 0
- } }
- where
- -------------------------------------------------------------
- -- ****** help functions:
-
- show_pass
- = if opt_D_show_passes
- then \ what -> hPutStr stderr ("*** "++what++":\n")
- else \ what -> return ()
+hscMain dflags finder summary maybe_old_iface output_filename
+ core_cmds stg_cmds hst hit pit pcs
+ = do {
+ -- ????? source_unchanged :: Bool -- extracted from summary?
+ let source_unchanged = trace "WARNING: source_unchanged?!" False
+ ;
+ (pcs_ch, check_errs, (recomp_reqd, maybe_checked_iface))
+ <- checkOldIface dflags finder hit hst pcs (ms_mod summary)
+ source_unchanged maybe_old_iface;
+ if check_errs then
+ return (HscFail pcs_ch)
+ else do {
+
+ let no_old_iface = not (isJust maybe_checked_iface)
+ what_next | recomp_reqd || no_old_iface = hscRecomp
+ | otherwise = hscNoRecomp
+ ;
+ what_next dflags finder summary maybe_checked_iface output_filename
+ core_cmds stg_cmds hst hit pit pcs_ch
+ }}
+
+
+hscNoRecomp dflags finder summary maybe_checked_iface output_filename
+ core_cmds stg_cmds hst hit pit pcs_ch
+ = do {
+ -- we definitely expect to have the old interface available
+ let old_iface = case maybe_checked_iface of
+ Just old_if -> old_if
+ Nothing -> panic "hscNoRecomp:old_iface"
+ ;
+ -- CLOSURE
+ (pcs_cl, closure_errs, cl_hs_decls)
+ <- closeIfaceDecls dflags finder hit hst pcs_ch old_iface ;
+ if closure_errs then
+ return (HscFail pcs_cl)
+ else do {
+
+ -- TYPECHECK
+ maybe_tc_result
+ <- typecheckModule dflags (ms_mod summary) pcs_cl hst hit cl_hs_decls;
+ case maybe_tc_result of {
+ Nothing -> return (HscFail pcs_cl);
+ Just tc_result -> do {
+
+ let pcs_tc = tc_pcs tc_result
+ env_tc = tc_env tc_result
+ binds_tc = tc_binds tc_result
+ local_insts = tc_insts tc_result
+ local_rules = tc_rules tc_result
+ ;
+ -- create a new details from the closed, typechecked, old iface
+ let new_details = mkModDetailsFromIface env_tc local_insts local_rules
+ ;
+ return (HscOK new_details
+ Nothing -- tells CM to use old iface and linkables
+ Nothing Nothing -- foreign export stuff
+ Nothing -- ibinds
+ pcs_tc)
+ }}}}
+
+
+hscRecomp dflags finder summary maybe_checked_iface output_filename
+ core_cmds stg_cmds hst hit pit pcs_ch
+ = do {
+ -- what target are we shooting for?
+ let toInterp = dopt_HscLang dflags == HscInterpreted
+ this_mod = ms_mod summary
+ ;
+ -- PARSE
+ maybe_parsed <- myParseModule dflags summary;
+ case maybe_parsed of {
+ Nothing -> return (HscFail pcs_ch);
+ Just rdr_module -> do {
+
+ -- RENAME
+ show_pass dflags "Renamer";
+ (pcs_rn, maybe_rn_result)
+ <- renameModule dflags finder hit hst pcs_ch this_mod rdr_module;
+ case maybe_rn_result of {
+ Nothing -> return (HscFail pcs_rn);
+ Just (new_iface, rn_hs_decls) -> do {
+
+ -- TYPECHECK
+ show_pass dflags "Typechecker";
+ maybe_tc_result
+ <- typecheckModule dflags this_mod pcs_rn hst hit rn_hs_decls;
+ case maybe_tc_result of {
+ Nothing -> return (HscFail pcs_rn);
+ Just tc_result -> do {
+
+ let pcs_tc = tc_pcs tc_result
+ env_tc = tc_env tc_result
+ binds_tc = tc_binds tc_result
+ local_insts = tc_insts tc_result
+ ;
+ -- DESUGAR, SIMPLIFY, TIDY-CORE
+ -- We grab the the unfoldings at this point.
+ (tidy_binds, orphan_rules, foreign_stuff)
+ <- dsThenSimplThenTidy dflags this_mod tc_result core_cmds
+ ;
+ -- CONVERT TO STG
+ (stg_binds, oa_tidy_binds, cost_centre_info, top_level_ids)
+ <- myCoreToStg dflags this_mod tidy_binds stg_cmds
+ ;
+ -- cook up a new ModDetails now we (finally) have all the bits
+ let new_details = mkModDetails env_tc local_insts tidy_binds
+ top_level_ids orphan_rules
+ ;
+ -- and possibly create a new ModIface
+ let maybe_final_iface
+ = completeIface maybe_checked_iface new_iface new_details
+ ;
+
+ -- Write the interface file
+ writeIface finder maybe_final_iface
+ ;
+
+ -- do the rest of code generation/emission
+ (maybe_ibinds, maybe_stub_h_filename, maybe_stub_c_filename)
+ <- restOfCodeGeneration dflags toInterp summary
+ cost_centre_info foreign_stuff tc_env stg_binds oa_tidy_binds
+ ;
+ -- and the answer is ...
+ return (HscOK new_details maybe_final_iface
+ maybe_stub_h_filename maybe_stub_c_filename
+ maybe_ibinds pcs_tc)
+ }}}}}}}
+
+
+myParseModule dflags summary
+ = do -------------------------- Parser ----------------
+ show_pass dflags "Parser"
+ -- _scc_ "Parser"
+
+ let src_filename -- name of the preprocessed source file
+ = case ms_ppsource summary of
+ Just (filename, fingerprint) -> filename
+ Nothing -> pprPanic
+ "myParseModule:summary is not of a source module"
+ (ppr summary)
+
+ buf <- hGetStringBuffer True{-expand tabs-} src_filename
+
+ let glaexts | dopt Opt_GlasgowExts dflags = 1#
+ | otherwise = 0#
+
+ case parse buf PState{ bol = 0#, atbol = 1#,
+ context = [], glasgow_exts = glaexts,
+ loc = mkSrcLoc (_PK_ src_filename) 1 } of {
+
+ PFailed err -> do { hPutStrLn stderr (showSDoc err);
+ return Nothing };
+ POk _ rdr_module@(HsModule mod_name _ _ _ _ _ _) -> do {
+
+ dumpIfSet_dyn dflags Opt_D_dump_parsed "Parser" (ppr rdr_module) ;
+
+ dumpIfSet_dyn dflags Opt_D_source_stats "Source Statistics"
+ (ppSourceStats False rdr_module) ;
+
+ return (Just rdr_module)
+ }}
+
+
+restOfCodeGeneration dflags toInterp summary cost_centre_info
+ foreign_stuff tc_env stg_binds oa_tidy_binds
+ | toInterp
+ = return (Nothing, Nothing,
+ Just (stgToInterpSyn stg_binds local_tycons local_classes))
+ | otherwise
+ = do -------------------------- Code generation -------------------------------
+ show_pass dflags "CodeGen"
+ -- _scc_ "CodeGen"
+ abstractC <- codeGen this_mod imported_modules
+ cost_centre_info fe_binders
+ local_tycons local_classes stg_binds
+
+ -------------------------- Code output -------------------------------
+ show_pass dflags "CodeOutput"
+ -- _scc_ "CodeOutput"
+ ncg_uniqs <- mkSplitUniqSupply 'n'
+ (maybe_stub_h_name, maybe_stub_c_name)
+ <- codeOutput this_mod local_tycons local_classes
+ oa_tidy_binds stg_binds
+ c_code h_code abstractC ncg_uniqs
+
+ return (maybe_stub_h_name, maybe_stub_c_name, Nothing)
+ where
+ local_tycons = tcEnvTyCons tc_env
+ local_classes = tcEnvClasses tc_env
+ this_mod = ms_mod summary
+ imported_modules = ms_get_imports summary
+ (fe_binders,h_code,c_code) = foreign_stuff
+
+
+dsThenSimplThenTidy dflags this_mod tc_result core_cmds
+-- make up ds_uniqs here
+ = do -------------------------- Desugaring ----------------
+ -- _scc_ "DeSugar"
+ ds_uniqs <- mkSplitUniqSupply 'd'
+ (desugared, rules, h_code, c_code, fe_binders)
+ <- deSugar this_mod ds_uniqs tc_result
+
+ -------------------------- Main Core-language transformations ----------------
+ -- _scc_ "Core2Core"
+ (simplified, orphan_rules) <- core2core core_cmds desugared rules
+
+ -- Do the final tidy-up
+ (tidy_binds, tidy_orphan_rules)
+ <- tidyCorePgm this_mod simplified orphan_rules
+
+ return (tidy_binds, tidy_orphan_rules, (fe_binders,h_code,c_code))
+
+
+myCoreToStg dflags this_mod tidy_binds stg_cmds
+ = do
+ c2s_uniqs <- mkSplitUniqSupply 'c'
+ st_uniqs <- mkSplitUniqSupply 'g'
+ let occ_anal_tidy_binds = occurAnalyseBinds tidy_binds
+
+ () <- coreBindsSize occ_anal_tidy_binds `seq` return ()
+ -- TEMP: the above call zaps some space usage allocated by the
+ -- simplifier, which for reasons I don't understand, persists
+ -- thoroughout code generation
+
+ show_pass dflags "Core2Stg"
+ -- _scc_ "Core2Stg"
+ let stg_binds = topCoreBindsToStg c2s_uniqs occ_anal_tidy_binds
+
+ show_pass dflags "Stg2Stg"
+ -- _scc_ "Stg2Stg"
+ (stg_binds2, cost_centre_info) <- stg2stg stg_cmds this_mod st_uniqs stg_binds
+ let final_ids = collectFinalStgBinders (map fst stg_binds2)
+
+ return (stg_binds2, occ_anal_tidy_binds, cost_centre_info, final_ids)
+
+
+show_pass dflags what
+ = if dopt Opt_D_show_passes dflags
+ then hPutStr stderr ("*** "++what++":\n")
+ else return ()
\end{code}
%************************************************************************
\begin{code}
-initPersistentCompilerState :: PersistentCompilerState
+initPersistentCompilerState :: IO PersistentCompilerState
initPersistentCompilerState
- = PCS { pcs_PST = initPackageDetails,
- pcs_insts = emptyInstEnv,
- pcs_rules = initRules,
- pcs_PRS = initPersistentRenamerState }
+ = do prs <- initPersistentRenamerState
+ return (
+ PCS { pcs_PST = initPackageDetails,
+ pcs_insts = emptyInstEnv,
+ pcs_rules = emptyRuleBase,
+ pcs_PRS = prs
+ }
+ )
initPackageDetails :: PackageSymbolTable
initPackageDetails = extendTypeEnv emptyModuleEnv wiredInThings
-initPersistentRenamerState :: PersistentRenamerState
- = PRS { prsOrig = Orig { origNames = initOrigNames,
- origIParam = emptyFM },
- prsDecls = emptyNameEnv,
- prsInsts = emptyBag,
- prsRules = emptyBag
- }
+initPersistentRenamerState :: IO PersistentRenamerState
+ = do ns <- mkSplitUniqSupply 'r'
+ return (
+ PRS { prsOrig = Orig { origNames = initOrigNames,
+ origIParam = emptyFM },
+ prsDecls = emptyNameEnv,
+ prsInsts = emptyBag,
+ prsRules = emptyBag,
+ prsNS = ns
+ }
+ )
initOrigNames :: FiniteMap (ModuleName,OccName) Name
initOrigNames = grab knownKeyNames `plusFM` grab (map getName wiredInThings)
add env name = addToFM env (moduleName (nameModule name), nameOccName name) name
-initRules :: RuleEnv
+initRules :: PackageRuleBase
initRules = foldl add emptyVarEnv builtinRules
where
- add env (name,rule) = extendNameEnv_C add1 env name [rule]
- add1 rules _ = rule : rules
+ add env (name,rule)
+ = extendNameEnv_C (\rules _ -> rule:rules)
+ env name [rule]
\end{code}
projects / ghc-hetmet.git / blobdiff