X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FHscMain.lhs;h=6bb6d6f726d75b06bfbecd360adeff674aecb079;hb=a25955b5ac32b2a501c7278acb39cfeccd308a6f;hp=484ae8f897790f59c1ce51fddae5b21d250069fe;hpb=aa44169c3c01243cdbf38f50f58e80477586552c;p=ghc-hetmet.git diff --git a/ghc/compiler/main/HscMain.lhs b/ghc/compiler/main/HscMain.lhs index 484ae8f..6bb6d6f 100644 --- a/ghc/compiler/main/HscMain.lhs +++ b/ghc/compiler/main/HscMain.lhs @@ -1,53 +1,76 @@ % -% (c) The GRASP/AQUA Project, Glasgow University, 1993-1998 +% (c) The GRASP/AQUA Project, Glasgow University, 1993-2000 % \section[GHC_Main]{Main driver for Glasgow Haskell compiler} \begin{code} -module HscMain ( hscMain ) where +module HscMain ( HscResult(..), hscMain, +#ifdef GHCI + hscExpr, +#endif + initPersistentCompilerState ) where #include "HsVersions.h" -import IO ( hPutStr, stderr ) +#ifdef GHCI +import RdrHsSyn ( RdrNameHsExpr ) +import Rename ( renameExpr ) +import Unique ( Uniquable(..) ) +import Type ( Type, splitTyConApp_maybe ) +import PrelNames ( ioTyConKey ) +import ByteCodeGen ( byteCodeGen ) +#endif + import HsSyn -import RdrHsSyn ( RdrNameHsModule ) -import FastString ( unpackFS ) -import StringBuffer ( hGetStringBuffer ) -import Parser ( parse ) +import StringBuffer ( hGetStringBuffer, + stringToStringBuffer, freeStringBuffer ) +import Parser import Lex ( PState(..), ParseResult(..) ) import SrcLoc ( mkSrcLoc ) - -import Rename ( renameModule ) - -import PrelInfo ( wiredInThings ) -import MkIface ( writeIface ) -import TcModule ( TcResults(..), typecheckModule ) -import Desugar ( deSugar ) -import SimplCore ( core2core ) -import OccurAnal ( occurAnalyseBinds ) +import Rename ( checkOldIface, renameModule, closeIfaceDecls ) +import Rules ( emptyRuleBase ) +import PrelInfo ( wiredInThingEnv, wiredInThings ) +import PrelNames ( knownKeyNames ) +import MkIface ( completeIface, mkModDetailsFromIface, mkModDetails, + writeIface, pprIface ) +import TcModule +import InstEnv ( emptyInstEnv ) +import Desugar +import SimplCore import CoreUtils ( coreBindsSize ) import CoreTidy ( tidyCorePgm ) -import CoreToStg ( topCoreBindsToStg ) -import StgSyn ( collectFinalStgBinders ) +import CoreSat +import CoreToStg ( coreToStg ) import SimplStg ( stg2stg ) import CodeGen ( codeGen ) import CodeOutput ( codeOutput ) -import Module ( ModuleName, moduleNameUserString ) +import Module ( ModuleName, moduleName, mkHomeModule ) import CmdLineOpts -import ErrUtils ( ghcExit, doIfSet, dumpIfSet ) +import ErrUtils ( dumpIfSet_dyn, showPass ) +import Util ( unJust ) import UniqSupply ( mkSplitUniqSupply ) +import Bag ( emptyBag ) import Outputable -import Char ( isSpace ) -#if REPORT_TO_MOTHERLODE && __GLASGOW_HASKELL__ >= 303 -import SocketPrim -import BSD -import IOExts ( unsafePerformIO ) -import NativeInfo ( os, arch ) -#endif -import StgInterp ( runStgI ) +import Interpreter +import CmStaticInfo ( GhciMode(..) ) +import HscStats ( ppSourceStats ) +import HscTypes ( ModDetails, ModIface(..), PersistentCompilerState(..), + PersistentRenamerState(..), ModuleLocation(..), + HomeSymbolTable, + NameSupply(..), PackageRuleBase, HomeIfaceTable, + typeEnvClasses, typeEnvTyCons, emptyIfaceTable ) +import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM ) +import OccName ( OccName ) +import Name ( Name, nameModule, nameOccName, getName, isGlobalName, + emptyNameEnv ) +import Module ( Module, lookupModuleEnvByName ) + +import Monad ( when ) +import Maybe ( isJust ) +import IO \end{code} @@ -59,193 +82,408 @@ import StgInterp ( runStgI ) \begin{code} data HscResult - = HscOK ModDetails -- new details (HomeSymbolTable additions) - (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 - PersistentCompilerState -- updated PCS - (Bag WarnMsg) -- warnings - - | HscErrs PersistentCompilerState -- updated PCS - (Bag ErrMsg) -- errors - (Bag WarnMsg) -- warnings + -- compilation failed + = HscFail PersistentCompilerState -- updated PCS + -- concluded that it wasn't necessary + | HscNoRecomp PersistentCompilerState -- updated PCS + ModDetails -- new details (HomeSymbolTable additions) + ModIface -- new iface (if any compilation was done) + -- did recompilation + | HscRecomp PersistentCompilerState -- updated PCS + ModDetails -- new details (HomeSymbolTable additions) + 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 ([UnlinkedBCO],ItblEnv)) -- interpreted code, if any + + + -- no errors or warnings; the individual passes + -- (parse/rename/typecheck) print messages themselves hscMain - :: DynFlags - -> ModSummary -- summary, including source filename - -> Maybe ModIFace -- old interface, if available - -> String -- file in which to put the output (.s, .hc, .java etc.) + :: GhciMode + -> DynFlags + -> Bool -- source unchanged? + -> ModuleLocation -- location info + -> Maybe ModIface -- old interface, if available -> HomeSymbolTable -- for home module ModDetails + -> HomeIfaceTable -> 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) >> +hscMain ghci_mode dflags source_unchanged location maybe_old_iface hst hit pcs + = do { + showPass dflags ("Checking old interface for hs = " + ++ show (ml_hs_file location) + ++ ", hspp = " ++ show (ml_hspp_file location)); + + (pcs_ch, errs_found, (recomp_reqd, maybe_checked_iface)) + <- checkOldIface ghci_mode dflags hit hst pcs + (unJust "hscMain" (ml_hi_file location)) + source_unchanged maybe_old_iface; + + if errs_found 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 ghci_mode dflags location maybe_checked_iface + hst hit pcs_ch + }} + + +-- we definitely expect to have the old interface available +hscNoRecomp ghci_mode dflags location (Just old_iface) hst hit pcs_ch + | ghci_mode == OneShot + = do { + hPutStrLn stderr "compilation IS NOT required"; + let { bomb = panic "hscNoRecomp:OneShot" }; + return (HscNoRecomp pcs_ch bomb bomb) + } + | otherwise + = do { + hPutStrLn stderr "compilation IS NOT required"; + + -- CLOSURE + (pcs_cl, closure_errs, cl_hs_decls) + <- closeIfaceDecls dflags hit hst pcs_ch old_iface ; + if closure_errs then + return (HscFail pcs_cl) + else do { + + -- TYPECHECK + maybe_tc_result <- typecheckModule dflags pcs_cl hst + old_iface alwaysQualify cl_hs_decls + False{-don't check for Main.main-}; + case maybe_tc_result of { + Nothing -> return (HscFail pcs_cl); + Just (pcs_tc, tc_result) -> do { + + let env_tc = tc_env 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_rules + ; + return (HscNoRecomp pcs_tc new_details old_iface) + }}}} + + +hscRecomp ghci_mode dflags location maybe_checked_iface hst hit pcs_ch + = do { + ; when (verbosity dflags >= 1) $ + hPutStrLn stderr "compilation IS required"; + + -- what target are we shooting for? + ; let toInterp = dopt_HscLang dflags == HscInterpreted + + ------------------- + -- 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) + + ------------------- + -- RENAME + ------------------- + ; (pcs_rn, 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 (print_unqualified, (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 + True{-check for Main.main if necessary-} + ; case maybe_tc_result of { + Nothing -> return (HscFail pcs_ch{-was: pcs_rn-}); + Just (pcs_tc, tc_result) -> do { + + ; let env_tc = tc_env tc_result + + ------------------- + -- DESUGAR + ------------------- + ; (ds_binds, ds_rules, foreign_stuff) + <- _scc_ "DeSugar" + deSugar dflags pcs_tc hst this_mod print_unqualified tc_result + + ------------------- + -- SIMPLIFY, TIDY-CORE + ------------------- + -- We grab the the unfoldings at this point. + ; (pcs_simpl, tidy_binds, orphan_rules) + <- simplThenTidy dflags pcs_tc hst this_mod dont_discard ds_binds ds_rules + + ------------------- + -- BUILD THE NEW ModDetails AND ModIface + ------------------- + ; let new_details = mkModDetails env_tc tidy_binds orphan_rules + ; final_iface <- _scc_ "MkFinalIface" + mkFinalIface ghci_mode dflags location + maybe_checked_iface new_iface new_details + + ------------------- + -- CONVERT TO STG and COMPLETE CODE GENERATION + ------------------- + ; (maybe_stub_h_filename, maybe_stub_c_filename, maybe_bcos) + <- restOfCodeGeneration dflags toInterp this_mod + (map ideclName (hsModuleImports rdr_module)) + foreign_stuff env_tc tidy_binds + hit (pcs_PIT pcs_simpl) + + -- and the answer is ... + ; return (HscRecomp pcs_simpl new_details final_iface + maybe_stub_h_filename maybe_stub_c_filename + maybe_bcos) + }}}}}}} + + + +mkFinalIface ghci_mode dflags location maybe_old_iface new_iface new_details + = case completeIface maybe_old_iface new_iface new_details of + (new_iface, Nothing) -- no change in the interfacfe + -> do when (dopt Opt_D_dump_hi_diffs dflags) + (printDump (text "INTERFACE UNCHANGED")) + dumpIfSet_dyn dflags Opt_D_dump_hi + "UNCHANGED FINAL INTERFACE" (pprIface new_iface) + return new_iface + (new_iface, Just sdoc_diffs) + -> do dumpIfSet_dyn dflags Opt_D_dump_hi_diffs "INTERFACE HAS CHANGED" + sdoc_diffs + dumpIfSet_dyn dflags Opt_D_dump_hi "NEW FINAL INTERFACE" + (pprIface new_iface) + -- Write the interface file + when (ghci_mode /= Interactive) + (writeIface (unJust "hscRecomp:hi" (ml_hi_file location)) + new_iface) + return new_iface + + +myParseModule dflags src_filename + = do -------------------------- Parser ---------------- + showPass dflags "Parser" + _scc_ "Parser" do + + buf <- hGetStringBuffer True{-expand tabs-} src_filename + + 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 { + + PFailed err -> do { hPutStrLn stderr (showSDoc err); + freeStringBuffer buf; + 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) + -- ToDo: free the string buffer later. + }} + + +simplThenTidy dflags pcs hst this_mod dont_discard binds rules + = do -- Do main Core-language transformations --------- + -- _scc_ "Core2Core" + (simplified, orphan_rules) + <- core2core dflags pcs hst dont_discard binds rules + + -- Do saturation and convert to A-normal form + -- NOTE: subsequent passes may not transform the syntax, only annotate it + saturated <- coreSatPgm dflags simplified + + -- Do the final tidy-up + (pcs', tidy_binds, tidy_orphan_rules) + <- tidyCorePgm dflags this_mod pcs saturated orphan_rules + + return (pcs', tidy_binds, tidy_orphan_rules) + + +restOfCodeGeneration dflags toInterp this_mod imported_module_names + foreign_stuff env_tc tidy_binds + hit pit -- these last two for mapping ModNames to Modules + | toInterp + = do (bcos,itbl_env) + <- byteCodeGen dflags tidy_binds local_tycons local_classes + return (Nothing, Nothing, Just (bcos,itbl_env)) + + | otherwise + = do + -------------------------- Convert to STG ------------------------------- + (stg_binds, cost_centre_info) + <- _scc_ "CoreToStg" + myCoreToStg dflags this_mod tidy_binds env_tc + + -------------------------- Code generation ------------------------------ + abstractC <- _scc_ "CodeGen" + codeGen dflags this_mod imported_modules + cost_centre_info fe_binders + local_tycons stg_binds + + -------------------------- Code output ------------------------------- + (maybe_stub_h_name, maybe_stub_c_name) + <- codeOutput dflags this_mod local_tycons + tidy_binds stg_binds + c_code h_code abstractC + + return (maybe_stub_h_name, maybe_stub_c_name, Nothing) + where + local_tycons = typeEnvTyCons env_tc + local_classes = typeEnvClasses env_tc + imported_modules = map mod_name_to_Module imported_module_names + (h_code,c_code,fe_binders) = foreign_stuff + + mod_name_to_Module :: ModuleName -> Module + mod_name_to_Module nm + = let str_mi = case lookupModuleEnvByName hit nm of + Just mi -> mi + Nothing -> case lookupModuleEnvByName pit nm of + Just mi -> mi + Nothing -> barf nm + in mi_module str_mi + barf nm = pprPanic "mod_name_to_Module: no hst or pst mapping for" + (ppr nm) + + +myCoreToStg dflags this_mod tidy_binds env_tc + = do + () <- coreBindsSize 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 + + --let bcos = byteCodeGen dflags tidy_binds local_tycons local_classes + + + stg_binds <- _scc_ "Core2Stg" coreToStg dflags this_mod tidy_binds + + (stg_binds2, cost_centre_info) + <- _scc_ "Core2Stg" stg2stg dflags this_mod stg_binds + + return (stg_binds2, cost_centre_info) + where + local_tycons = typeEnvTyCons env_tc + local_classes = typeEnvClasses env_tc +\end{code} - -- 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" +%************************************************************************ +%* * +\subsection{Compiling an expression} +%* * +%************************************************************************ - 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 (); +\begin{code} +#ifdef GHCI +hscExpr + :: DynFlags + -> Bool -- True <=> wrap in 'print' to get a result of IO type + -> HomeSymbolTable + -> HomeIfaceTable + -> PersistentCompilerState -- IN: persistent compiler state + -> Module -- Context for compiling + -> String -- The expression + -> IO ( PersistentCompilerState, + Maybe (UnlinkedBCOExpr, PrintUnqualified, Type) ) + +hscExpr dflags wrap_io hst hit pcs0 this_module expr + = do { + maybe_parsed <- hscParseExpr dflags expr; + case maybe_parsed of + Nothing -> return (pcs0, Nothing) + Just parsed_expr -> do { + + -- Rename it + (pcs1, maybe_renamed_expr) <- + renameExpr dflags hit hst pcs0 this_module parsed_expr; + case maybe_renamed_expr of + Nothing -> return ({-WAS:pcs1-} pcs0, Nothing) + Just (print_unqual, rn_expr) -> do { + + -- Typecheck it + maybe_tc_return + <- typecheckExpr dflags wrap_io pcs1 hst print_unqual this_module rn_expr; + case maybe_tc_return of { + Nothing -> return ({-WAS:pcs1-} pcs0, Nothing); + Just (pcs2, tc_expr, ty) -> do + + -- Desugar it + ds_expr <- deSugarExpr dflags pcs2 hst this_module + print_unqual tc_expr; - 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 + -- Simplify it + simpl_expr <- simplifyExpr dflags pcs2 hst ds_expr; + -- Saturate it + sat_expr <- coreSatExpr dflags simpl_expr; - -------------------------- Typechecking ---------------- - show_pass "TypeCheck" >> - _scc_ "TypeCheck" - typecheckModule tc_uniqs rn_name_supply - fixity_env rn_mod >>= \ maybe_tc_stuff -> - case maybe_tc_stuff of { - Nothing -> ghcExit 1; -- Type checker failed + -- ToDo: need to do SRTs? - Just (tc_results@(TcResults {tc_tycons = local_tycons, - tc_classes = local_classes, - tc_insts = inst_info })) -> + -- Convert to BCOs + bcos <- coreExprToBCOs dflags sat_expr + return (pcs2, Just (bcos, print_unqual, ty)); + }}}} - -------------------------- Desugaring ---------------- - _scc_ "DeSugar" - deSugar this_mod ds_uniqs tc_results >>= \ (desugared, rules, h_code, c_code, fe_binders) -> +hscParseExpr :: DynFlags -> String -> IO (Maybe RdrNameHsExpr) +hscParseExpr dflags str + = do -------------------------- Parser ---------------- + showPass dflags "Parser" + _scc_ "Parser" do + buf <- stringToStringBuffer str - -------------------------- Main Core-language transformations ---------------- - _scc_ "Core2Core" - core2core core_cmds desugared rules >>= \ (simplified, orphan_rules) -> + let glaexts | dopt Opt_GlasgowExts dflags = 1# + | otherwise = 0# - -- Do the final tidy-up - tidyCorePgm tidy_uniqs this_mod - simplified orphan_rules >>= \ (tidy_binds, tidy_orphan_rules) -> + case parseExpr buf PState{ bol = 0#, atbol = 1#, + context = [], glasgow_exts = glaexts, + loc = mkSrcLoc SLIT("") 0 } of { - -- 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 + PFailed err -> do { hPutStrLn stderr (showSDoc err); +-- Not yet implemented in <4.11 freeStringBuffer buf; + return Nothing }; - 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)) >> + POk _ rdr_expr -> do { + --ToDo: can't free the string buffer until we've finished this + -- compilation sweep and all the identifiers have gone away. + --freeStringBuffer buf; + dumpIfSet_dyn dflags Opt_D_dump_parsed "Parser" (ppr rdr_expr); + return (Just rdr_expr) + }} #endif - - - ghcExit 0 - } } - where - ------------------------------------------------------------- - -- ****** help functions: - - show_pass - = if opt_D_show_passes - then \ what -> hPutStr stderr ("*** "++what++":\n") - else \ what -> return () \end{code} - %************************************************************************ %* * \subsection{Initial persistent state} @@ -253,210 +491,46 @@ hscMain flags core_cmds stg_cmds summary maybe_old_iface %************************************************************************ \begin{code} -initPersistentCompilerState :: PersistentCompilerState +initPersistentCompilerState :: IO PersistentCompilerState initPersistentCompilerState - = PCS { pcs_PST = initPackageDetails, - pcs_insts = emptyInstEnv, - pcs_rules = emptyRuleEnv, - pcs_PRS = initPersistentRenamerState } - -initPackageDetails :: PackageSymbolTable -initPackageDetails = extendTypeEnv emptyModuleEnv wiredInThings - -initPersistentRenamerState :: PersistentRenamerState - = PRS { prsOrig = Orig { origNames = initOrigNames, - origIParam = emptyFM }, - prsDecls = emptyNameEnv, - prsInsts = emptyBag, - prsRules = emptyBag - } + = do prs <- initPersistentRenamerState + return ( + PCS { pcs_PIT = emptyIfaceTable, + pcs_PTE = wiredInThingEnv, + pcs_insts = emptyInstEnv, + pcs_rules = emptyRuleBase, + pcs_PRS = prs + } + ) + +initPersistentRenamerState :: IO PersistentRenamerState + = do us <- mkSplitUniqSupply 'r' + return ( + PRS { prsOrig = NameSupply { nsUniqs = us, + nsNames = initOrigNames, + nsIPs = emptyFM }, + prsDecls = (emptyNameEnv, 0), + prsInsts = (emptyBag, 0), + prsRules = (emptyBag, 0), + prsImpMods = emptyFM + } + ) initOrigNames :: FiniteMap (ModuleName,OccName) Name -initOrigNames = grab knownKeyNames `plusFM` grab (map getName wiredInThings) - where - grab names = foldl add emptyFM names - add env name = addToFM env (moduleName (nameModule name), nameOccName name) name -\end{code} - -%************************************************************************ -%* * -\subsection{Statistics} -%* * -%************************************************************************ - -\begin{code} -ppSourceStats short (HsModule name version exports imports decls _ src_loc) - = (if short then hcat else vcat) - (map pp_val - [("ExportAll ", export_all), -- 1 if no export list - ("ExportDecls ", export_ds), - ("ExportModules ", export_ms), - ("Imports ", import_no), - (" ImpQual ", import_qual), - (" ImpAs ", import_as), - (" ImpAll ", import_all), - (" ImpPartial ", import_partial), - (" ImpHiding ", import_hiding), - ("FixityDecls ", fixity_ds), - ("DefaultDecls ", default_ds), - ("TypeDecls ", type_ds), - ("DataDecls ", data_ds), - ("NewTypeDecls ", newt_ds), - ("DataConstrs ", data_constrs), - ("DataDerivings ", data_derivs), - ("ClassDecls ", class_ds), - ("ClassMethods ", class_method_ds), - ("DefaultMethods ", default_method_ds), - ("InstDecls ", inst_ds), - ("InstMethods ", inst_method_ds), - ("TypeSigs ", bind_tys), - ("ValBinds ", val_bind_ds), - ("FunBinds ", fn_bind_ds), - ("InlineMeths ", method_inlines), - ("InlineBinds ", bind_inlines), --- ("SpecialisedData ", data_specs), --- ("SpecialisedInsts ", inst_specs), - ("SpecialisedMeths ", method_specs), - ("SpecialisedBinds ", bind_specs) - ]) - where - pp_val (str, 0) = empty - pp_val (str, n) - | not short = hcat [text str, int n] - | otherwise = hcat [text (trim str), equals, int n, semi] - - trim ls = takeWhile (not.isSpace) (dropWhile isSpace ls) - - fixity_ds = length [() | FixD d <- decls] - -- NB: this omits fixity decls on local bindings and - -- in class decls. ToDo - - tycl_decls = [d | TyClD d <- decls] - (class_ds, data_ds, newt_ds, type_ds) = countTyClDecls tycl_decls - - inst_decls = [d | InstD d <- decls] - inst_ds = length inst_decls - default_ds = length [() | DefD _ <- decls] - val_decls = [d | ValD d <- decls] - - real_exports = case exports of { Nothing -> []; Just es -> es } - n_exports = length real_exports - export_ms = length [() | IEModuleContents _ <- real_exports] - export_ds = n_exports - export_ms - export_all = case exports of { Nothing -> 1; other -> 0 } - - (val_bind_ds, fn_bind_ds, bind_tys, bind_specs, bind_inlines) - = count_binds (foldr ThenBinds EmptyBinds val_decls) - - (import_no, import_qual, import_as, import_all, import_partial, import_hiding) - = foldr add6 (0,0,0,0,0,0) (map import_info imports) - (data_constrs, data_derivs) - = foldr add2 (0,0) (map data_info tycl_decls) - (class_method_ds, default_method_ds) - = foldr add2 (0,0) (map class_info tycl_decls) - (inst_method_ds, method_specs, method_inlines) - = foldr add3 (0,0,0) (map inst_info inst_decls) - - - count_binds EmptyBinds = (0,0,0,0,0) - count_binds (ThenBinds b1 b2) = count_binds b1 `add5` count_binds b2 - count_binds (MonoBind b sigs _) = case (count_monobinds b, count_sigs sigs) of - ((vs,fs),(ts,_,ss,is)) -> (vs,fs,ts,ss,is) - - count_monobinds EmptyMonoBinds = (0,0) - count_monobinds (AndMonoBinds b1 b2) = count_monobinds b1 `add2` count_monobinds b2 - count_monobinds (PatMonoBind (VarPatIn n) r _) = (1,0) - count_monobinds (PatMonoBind p r _) = (0,1) - count_monobinds (FunMonoBind f _ m _) = (0,1) - - count_sigs sigs = foldr add4 (0,0,0,0) (map sig_info sigs) - - sig_info (Sig _ _ _) = (1,0,0,0) - sig_info (ClassOpSig _ _ _ _) = (0,1,0,0) - sig_info (SpecSig _ _ _) = (0,0,1,0) - sig_info (InlineSig _ _ _) = (0,0,0,1) - sig_info (NoInlineSig _ _ _) = (0,0,0,1) - sig_info _ = (0,0,0,0) - - import_info (ImportDecl _ _ qual as spec _) - = add6 (1, qual_info qual, as_info as, 0,0,0) (spec_info spec) - qual_info False = 0 - qual_info True = 1 - as_info Nothing = 0 - as_info (Just _) = 1 - spec_info Nothing = (0,0,0,1,0,0) - spec_info (Just (False, _)) = (0,0,0,0,1,0) - spec_info (Just (True, _)) = (0,0,0,0,0,1) - - data_info (TyData _ _ _ _ _ nconstrs derivs _ _ _ _) - = (nconstrs, case derivs of {Nothing -> 0; Just ds -> length ds}) - data_info other = (0,0) - - class_info (ClassDecl _ _ _ _ meth_sigs def_meths _ _ _ ) - = case count_sigs meth_sigs of - (_,classops,_,_) -> - (classops, addpr (count_monobinds def_meths)) - class_info other = (0,0) - - inst_info (InstDecl _ inst_meths inst_sigs _ _) - = case count_sigs inst_sigs of - (_,_,ss,is) -> - (addpr (count_monobinds inst_meths), ss, is) - - addpr :: (Int,Int) -> Int - add1 :: Int -> Int -> Int - add2 :: (Int,Int) -> (Int,Int) -> (Int, Int) - add3 :: (Int,Int,Int) -> (Int,Int,Int) -> (Int, Int, Int) - add4 :: (Int,Int,Int,Int) -> (Int,Int,Int,Int) -> (Int, Int, Int, Int) - add5 :: (Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int) - add6 :: (Int,Int,Int,Int,Int,Int) -> (Int,Int,Int,Int,Int,Int) -> (Int, Int, Int, Int, Int, Int) - - addpr (x,y) = x+y - add1 x1 y1 = x1+y1 - add2 (x1,x2) (y1,y2) = (x1+y1,x2+y2) - add3 (x1,x2,x3) (y1,y2,y3) = (x1+y1,x2+y2,x3+y3) - add4 (x1,x2,x3,x4) (y1,y2,y3,y4) = (x1+y1,x2+y2,x3+y3,x4+y4) - add5 (x1,x2,x3,x4,x5) (y1,y2,y3,y4,y5) = (x1+y1,x2+y2,x3+y3,x4+y4,x5+y5) - add6 (x1,x2,x3,x4,x5,x6) (y1,y2,y3,y4,y5,y6) = (x1+y1,x2+y2,x3+y3,x4+y4,x5+y5,x6+y6) -\end{code} - -\begin{code} -\end{code} - -\begin{code} -reportCompile :: ModuleName -> String -> IO () -#if REPORT_TO_MOTHERLODE && __GLASGOW_HASKELL__ >= 303 -reportCompile mod_name info - | not opt_ReportCompile = return () - | otherwise = (do - sock <- udpSocket 0 - addr <- motherShip - sendTo sock (moduleNameUserString mod_name ++ ';': compiler_version ++ - ';': os ++ ';':arch ++ '\n':' ':info ++ "\n") addr - return ()) `catch` (\ _ -> return ()) - -motherShip :: IO SockAddr -motherShip = do - he <- getHostByName "laysan.dcs.gla.ac.uk" - case (hostAddresses he) of - [] -> IOERROR (userError "No address!") - (x:_) -> return (SockAddrInet motherShipPort x) - ---magick -motherShipPort :: PortNumber -motherShipPort = mkPortNumber 12345 - --- creates a socket capable of sending datagrams, --- binding it to a port --- ( 0 => have the system pick next available port no.) -udpSocket :: Int -> IO Socket -udpSocket p = do - pr <- getProtocolNumber "udp" - s <- socket AF_INET Datagram pr - bindSocket s (SockAddrInet (mkPortNumber p) iNADDR_ANY) - return s -#else -reportCompile _ _ = return () -#endif - +initOrigNames + = grab knownKeyNames `plusFM` grab (map getName wiredInThings) + where + grab names = foldl add emptyFM names + add env name + = addToFM env (moduleName (nameModule name), nameOccName name) name + + +initRules :: PackageRuleBase +initRules = emptyRuleBase +{- SHOULD BE (ish) + foldl add emptyVarEnv builtinRules + where + add env (name,rule) + = extendRuleBase env name rule +-} \end{code}