X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FHscMain.lhs;h=124d9f0803ff22ed6a40824f9f6cfce7cbe13e8e;hb=3c96346b3685f83885cea7906b0dbc536d7695f6;hp=4e826e16a8c6b0a99aabe0317ea2ca363ac97549;hpb=28122dd6e891a440493edef9795d68d3f3c2af46;p=ghc-hetmet.git diff --git a/ghc/compiler/main/HscMain.lhs b/ghc/compiler/main/HscMain.lhs index 4e826e1..124d9f0 100644 --- a/ghc/compiler/main/HscMain.lhs +++ b/ghc/compiler/main/HscMain.lhs @@ -5,23 +5,26 @@ \section[GHC_Main]{Main driver for Glasgow Haskell compiler} \begin{code} -module HscMain ( - HscResult(..), - hscMain, newHscEnv, hscCmmFile, - hscFileCheck, - hscParseIdentifier, +module HscMain + ( newHscEnv, hscCmmFile + , hscFileCheck + , hscParseIdentifier #ifdef GHCI - hscStmt, hscTcExpr, hscKcType, - hscGetInfo, GetInfoResult, - compileExpr, + , hscStmt, hscTcExpr, hscKcType + , compileExpr #endif - ) where + , hscCompileOneShot -- :: Compiler HscStatus + , hscCompileMake -- :: Compiler (HscStatus, ModIface, ModDetails) + , hscCompileInteractive -- :: Compiler (InteractiveStatus, ModIface, ModDetails) + , HscStatus (..) + , InteractiveStatus (..) + , HscChecked (..) + ) where #include "HsVersions.h" #ifdef GHCI import HsSyn ( Stmt(..), LHsExpr, LStmt, LHsType ) -import IfaceSyn ( IfaceDecl, IfaceInst ) import Module ( Module ) import CodeOutput ( outputForeignStubs ) import ByteCodeGen ( byteCodeGen, coreExprToBCOs ) @@ -29,23 +32,20 @@ import Linker ( HValue, linkExpr ) import CoreTidy ( tidyExpr ) import CorePrep ( corePrepExpr ) import Flattening ( flattenExpr ) -import TcRnDriver ( tcRnStmt, tcRnExpr, tcRnGetInfo, GetInfoResult, tcRnType ) -import RdrName ( rdrNameOcc ) -import OccName ( occNameUserString ) +import TcRnDriver ( tcRnStmt, tcRnExpr, tcRnType ) import Type ( Type ) import PrelNames ( iNTERACTIVE ) import Kind ( Kind ) import CoreLint ( lintUnfolding ) import DsMeta ( templateHaskellNames ) -import BasicTypes ( Fixity ) -import SrcLoc ( SrcLoc, noSrcLoc ) +import SrcLoc ( noSrcLoc ) import VarEnv ( emptyTidyEnv ) #endif import Var ( Id ) -import Module ( emptyModuleEnv ) +import Module ( emptyModuleEnv, ModLocation(..) ) import RdrName ( GlobalRdrEnv, RdrName ) -import HsSyn ( HsModule, LHsBinds, HsGroup ) +import HsSyn ( HsModule, LHsBinds, HsGroup, LIE, LImportDecl ) import SrcLoc ( Located(..) ) import StringBuffer ( hGetStringBuffer, stringToStringBuffer ) import Parser @@ -58,13 +58,14 @@ import IfaceEnv ( initNameCache ) import LoadIface ( ifaceStats, initExternalPackageState ) import PrelInfo ( wiredInThings, basicKnownKeyNames ) import MkIface ( checkOldIface, mkIface, writeIfaceFile ) -import Desugar +import Desugar ( deSugar ) import Flattening ( flatten ) -import SimplCore +import SimplCore ( core2core ) import TidyPgm ( tidyProgram, mkBootModDetails ) import CorePrep ( corePrepPgm ) import CoreToStg ( coreToStg ) import TyCon ( isDataTyCon ) +import Packages ( mkHomeModules ) import Name ( Name, NamedThing(..) ) import SimplStg ( stg2stg ) import CodeGen ( codeGen ) @@ -72,7 +73,6 @@ import CmmParse ( parseCmmFile ) import CodeOutput ( codeOutput ) import DynFlags -import DriverPhases ( HscSource(..) ) import ErrUtils import UniqSupply ( mkSplitUniqSupply ) @@ -84,9 +84,8 @@ import ParserCore import ParserCoreUtils import FastString import Maybes ( expectJust ) -import Bag ( unitBag, emptyBag ) +import Bag ( unitBag ) import Monad ( when ) -import Maybe ( isJust ) import IO import DATA_IOREF ( newIORef, readIORef ) \end{code} @@ -131,120 +130,195 @@ knownKeyNames = map getName wiredInThings %* * %************************************************************************ -\begin{code} -data HscResult - -- Compilation failed - = HscFail - - -- In IDE mode: we just do the static/dynamic checks - | HscChecked - (Located (HsModule RdrName)) -- parsed - (Maybe (HsGroup Name)) -- renamed - (Maybe (LHsBinds Id, GlobalRdrEnv, ModDetails)) -- typechecked - - -- Concluded that it wasn't necessary - | HscNoRecomp ModDetails -- new details (HomeSymbolTable additions) - ModIface -- new iface (if any compilation was done) - - -- Did recompilation - | HscRecomp ModDetails -- new details (HomeSymbolTable additions) - ModIface -- new iface (if any compilation was done) - Bool -- stub_h exists - Bool -- stub_c exists - (Maybe CompiledByteCode) + -------------------------------- + The compilation proper + -------------------------------- + + +It's the task of the compilation proper to compile Haskell, hs-boot and +core files to either byte-code, hard-code (C, asm, Java, ect) or to +nothing at all (the module is still parsed and type-checked. This +feature is mostly used by IDE's and the likes). +Compilation can happen in either 'one-shot', 'make', or 'interactive' +mode. 'One-shot' mode targets hard-code, 'make' mode targets hard-code +and nothing, and 'interactive' mode targets byte-code. The modes are +kept separate because of their different types. +In 'one-shot' mode, we're only compiling a single file and can therefore +discard the new ModIface and ModDetails. This is also the reason it only +targets hard-code; compiling to byte-code or nothing doesn't make sense +when we discard the result. 'Make' mode is like 'one-shot' except that we +keep the resulting ModIface and ModDetails. 'Make' mode doesn't target +byte-code since that require us to return the newly compiled byte-code. +'Interactive' mode is similar to 'make' mode except that we return +the compiled byte-code together with the ModIface and ModDetails. +Trying to compile a hs-boot file to byte-code will result in a run-time +error. This is the only thing that isn't caught by the type-system. +\begin{code} --- What to do when we have compiler error or warning messages -type MessageAction = Messages -> IO () - - -- no errors or warnings; the individual passes - -- (parse/rename/typecheck) print messages themselves - -hscMain - :: HscEnv - -> MessageAction -- What to do with errors/warnings - -> ModSummary - -> Bool -- True <=> source unchanged - -> Bool -- True <=> have an object file (for msgs only) - -> Maybe ModIface -- Old interface, if available - -> Maybe (Int, Int) -- Just (i,n) <=> module i of n (for msgs) - -> IO HscResult - -hscMain hsc_env msg_act mod_summary - source_unchanged have_object maybe_old_iface - mb_mod_index - = do { - (recomp_reqd, maybe_checked_iface) <- - {-# SCC "checkOldIface" #-} - checkOldIface hsc_env mod_summary - source_unchanged maybe_old_iface; - - let no_old_iface = not (isJust maybe_checked_iface) - what_next | recomp_reqd || no_old_iface = hscRecomp - | otherwise = hscNoRecomp - - ; what_next hsc_env msg_act mod_summary have_object - maybe_checked_iface - mb_mod_index - } - - ------------------------------- -hscNoRecomp hsc_env msg_act mod_summary - have_object (Just old_iface) - mb_mod_index - | isOneShot (ghcMode (hsc_dflags hsc_env)) - = do { - compilationProgressMsg (hsc_dflags hsc_env) $ - "compilation IS NOT required"; - dumpIfaceStats hsc_env ; - - let { bomb = panic "hscNoRecomp:OneShot" }; - return (HscNoRecomp bomb bomb) - } - | otherwise - = do { compilationProgressMsg (hsc_dflags hsc_env) $ - (showModuleIndex mb_mod_index ++ - "Skipping " ++ showModMsg have_object mod_summary) - - ; new_details <- {-# SCC "tcRnIface" #-} - initIfaceCheck hsc_env $ - typecheckIface old_iface ; - ; dumpIfaceStats hsc_env - - ; return (HscNoRecomp new_details old_iface) - } - -hscNoRecomp hsc_env msg_act mod_summary - have_object Nothing - mb_mod_index - = panic "hscNoRecomp" -- hscNoRecomp definitely expects to - -- have the old interface available - ------------------------------- -hscRecomp hsc_env msg_act mod_summary - have_object maybe_old_iface - mb_mod_index - = case ms_hsc_src mod_summary of - HsSrcFile -> do - front_res <- hscFileFrontEnd hsc_env msg_act mod_summary mb_mod_index - hscBackEnd hsc_env mod_summary maybe_old_iface front_res - - HsBootFile -> do - front_res <- hscFileFrontEnd hsc_env msg_act mod_summary mb_mod_index - hscBootBackEnd hsc_env mod_summary maybe_old_iface front_res - - ExtCoreFile -> do - front_res <- hscCoreFrontEnd hsc_env msg_act mod_summary - hscBackEnd hsc_env mod_summary maybe_old_iface front_res - -hscCoreFrontEnd hsc_env msg_act mod_summary = do { +data HscChecked + = HscChecked + -- parsed + (Located (HsModule RdrName)) + -- renamed + (Maybe (HsGroup Name,[LImportDecl Name],Maybe [LIE Name])) + -- typechecked + (Maybe (LHsBinds Id, GlobalRdrEnv, ModDetails)) + + +-- Status of a compilation to hard-code or nothing. +data HscStatus + = HscNoRecomp + | HscRecomp Bool -- Has stub files. + -- This is a hack. We can't compile C files here + -- since it's done in DriverPipeline. For now we + -- just return True if we want the caller to compile + -- it for us. + +-- Status of a compilation to byte-code. +data InteractiveStatus + = InteractiveNoRecomp + | InteractiveRecomp Bool -- Same as HscStatus + CompiledByteCode + +type NoRecomp result = HscEnv -> ModSummary -> Bool -> ModIface -> Maybe (Int,Int) -> IO result +type FrontEnd core = HscEnv -> ModSummary -> Maybe (Int,Int) -> IO (Maybe core) +type BackEnd core prepCore = HscEnv -> ModSummary -> Maybe ModIface -> core -> IO prepCore +type CodeGen prepCore result = HscEnv -> ModSummary -> prepCore -> IO result + +type Compiler result = HscEnv + -> ModSummary + -> Bool -- True <=> source unchanged + -> Bool -- True <=> have an object file (for msgs only) + -> Maybe ModIface -- Old interface, if available + -> Maybe (Int,Int) -- Just (i,n) <=> module i of n (for msgs) + -> IO (Maybe result) + + +-- This functions checks if recompilation is necessary and +-- then combines the FrontEnd, BackEnd and CodeGen to a +-- working compiler. +hscMkCompiler :: NoRecomp result -- What to do when recompilation isn't required. + -> FrontEnd core + -> BackEnd core prepCore + -> CodeGen prepCore result + -> Compiler result +hscMkCompiler norecomp frontend backend codegen + hsc_env mod_summary source_unchanged + have_object mbOldIface mbModIndex + = do (recomp_reqd, mbCheckedIface) + <- {-# SCC "checkOldIface" #-} + checkOldIface hsc_env mod_summary + source_unchanged mbOldIface + case mbCheckedIface of + Just iface | not recomp_reqd + -> do result <- norecomp hsc_env mod_summary have_object iface mbModIndex + return (Just result) + _otherwise + -> do mbCore <- frontend hsc_env mod_summary mbModIndex + case mbCore of + Nothing + -> return Nothing + Just core + -> do prepCore <- backend hsc_env mod_summary + mbCheckedIface core + result <- codegen hsc_env mod_summary prepCore + return (Just result) + +-------------------------------------------------------------- +-- Compilers +-------------------------------------------------------------- + +-- Compile Haskell, boot and extCore in OneShot mode. +hscCompileOneShot :: Compiler HscStatus +hscCompileOneShot hsc_env mod_summary = + compiler hsc_env mod_summary + where mkComp = hscMkCompiler (norecompOneShot HscNoRecomp) + compiler + = case ms_hsc_src mod_summary of + ExtCoreFile + -> mkComp hscCoreFrontEnd hscNewBackEnd hscCodeGenOneShot +-- 1 2 3 4 5 6 7 8 9 + HsSrcFile + -> mkComp hscFileFrontEnd hscNewBackEnd hscCodeGenOneShot + HsBootFile + -> mkComp hscFileFrontEnd hscNewBootBackEnd + (hscCodeGenConst (HscRecomp False)) + +-- Compile Haskell, boot and extCore in --make mode. +hscCompileMake :: Compiler (HscStatus, ModIface, ModDetails) +hscCompileMake hsc_env mod_summary + = compiler hsc_env mod_summary + where mkComp = hscMkCompiler norecompMake + backend = case hscTarget (hsc_dflags hsc_env) of + HscNothing -> hscCodeGenNothing + _other -> hscCodeGenMake + compiler + = case ms_hsc_src mod_summary of + ExtCoreFile + -> mkComp hscCoreFrontEnd hscNewBackEnd backend + HsSrcFile + -> mkComp hscFileFrontEnd hscNewBackEnd backend + HsBootFile + -> mkComp hscFileFrontEnd hscNewBootBackEnd hscCodeGenIdentity + + +-- Compile Haskell, extCore to bytecode. +hscCompileInteractive :: Compiler (InteractiveStatus, ModIface, ModDetails) +hscCompileInteractive hsc_env mod_summary = + hscMkCompiler norecompInteractive frontend hscNewBackEnd hscCodeGenInteractive + hsc_env mod_summary + where frontend = case ms_hsc_src mod_summary of + ExtCoreFile -> hscCoreFrontEnd + HsSrcFile -> hscFileFrontEnd + HsBootFile -> panic bootErrorMsg + bootErrorMsg = "Compiling a HsBootFile to bytecode doesn't make sense. " ++ + "Use 'hscCompileMake' instead." + +-------------------------------------------------------------- +-- NoRecomp handlers +-------------------------------------------------------------- + +norecompOneShot :: a -> NoRecomp a +norecompOneShot a hsc_env mod_summary + have_object old_iface + mb_mod_index + = do compilationProgressMsg (hsc_dflags hsc_env) $ + "compilation IS NOT required" + dumpIfaceStats hsc_env + return a + +norecompMake :: NoRecomp (HscStatus, ModIface, ModDetails) +norecompMake = norecompWorker HscNoRecomp + +norecompInteractive :: NoRecomp (InteractiveStatus, ModIface, ModDetails) +norecompInteractive = norecompWorker InteractiveNoRecomp + +norecompWorker :: a -> NoRecomp (a, ModIface, ModDetails) +norecompWorker a hsc_env mod_summary have_object + old_iface mb_mod_index + = do compilationProgressMsg (hsc_dflags hsc_env) $ + (showModuleIndex mb_mod_index ++ + "Skipping " ++ showModMsg have_object mod_summary) + new_details <- {-# SCC "tcRnIface" #-} + initIfaceCheck hsc_env $ + typecheckIface old_iface + dumpIfaceStats hsc_env + return (a, old_iface, new_details) + +-------------------------------------------------------------- +-- FrontEnds +-------------------------------------------------------------- + +hscCoreFrontEnd :: FrontEnd ModGuts +hscCoreFrontEnd hsc_env mod_summary mb_mod_index = do { ------------------- -- PARSE ------------------- ; inp <- readFile (expectJust "hscCoreFrontEnd" (ms_hspp_file mod_summary)) ; case parseCore inp 1 of - FailP s -> putMsg s{-ToDo: wrong-} >> return Nothing + FailP s -> do errorMsg (hsc_dflags hsc_env) (text s{-ToDo: wrong-}) + return Nothing OkP rdr_module -> do { ------------------- @@ -252,20 +326,20 @@ hscCoreFrontEnd hsc_env msg_act mod_summary = do { ------------------- ; (tc_msgs, maybe_tc_result) <- {-# SCC "TypeCheck" #-} tcRnExtCore hsc_env rdr_module - ; msg_act tc_msgs + ; 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 hsc_env msg_act mod_summary mb_mod_index = do { +hscFileFrontEnd :: FrontEnd ModGuts +hscFileFrontEnd hsc_env mod_summary mb_mod_index = do { ------------------- -- DISPLAY PROGRESS MESSAGE ------------------- - let one_shot = isOneShot (ghcMode (hsc_dflags hsc_env)) - ; let dflags = hsc_dflags hsc_env - ; let toInterp = hscTarget dflags == HscInterpreted + ; let dflags = hsc_dflags hsc_env + one_shot = isOneShot (ghcMode dflags) + toInterp = hscTarget dflags == HscInterpreted ; when (not one_shot) $ compilationProgressMsg dflags $ (showModuleIndex mb_mod_index ++ @@ -277,10 +351,10 @@ hscFileFrontEnd hsc_env msg_act mod_summary mb_mod_index = do { ; let hspp_file = expectJust "hscFileFrontEnd" (ms_hspp_file mod_summary) hspp_buf = ms_hspp_buf mod_summary - ; maybe_parsed <- myParseModule (hsc_dflags hsc_env) hspp_file hspp_buf + ; maybe_parsed <- myParseModule dflags hspp_file hspp_buf ; case maybe_parsed of { - Left err -> do { msg_act (unitBag err, emptyBag) + Left err -> do { printBagOfErrors dflags (unitBag err) ; return Nothing } ; Right rdr_module -> do { @@ -291,7 +365,7 @@ hscFileFrontEnd hsc_env msg_act mod_summary mb_mod_index = do { <- {-# SCC "Typecheck-Rename" #-} tcRnModule hsc_env (ms_hsc_src mod_summary) False rdr_module - ; msg_act tc_msgs + ; printErrorsAndWarnings dflags tc_msgs ; case maybe_tc_result of { Nothing -> return Nothing ; Just tc_result -> do { @@ -301,88 +375,31 @@ hscFileFrontEnd hsc_env msg_act mod_summary mb_mod_index = do { ------------------- ; (warns, maybe_ds_result) <- {-# SCC "DeSugar" #-} deSugar hsc_env tc_result - ; msg_act (warns, emptyBag) + ; printBagOfWarnings dflags warns ; return maybe_ds_result }}}}} ------------------------------- - -hscFileCheck :: HscEnv -> MessageAction -> ModSummary -> IO HscResult -hscFileCheck hsc_env msg_act mod_summary = do { - ------------------- - -- PARSE - ------------------- - ; let hspp_file = expectJust "hscFileFrontEnd" (ms_hspp_file mod_summary) - hspp_buf = ms_hspp_buf mod_summary - - ; maybe_parsed <- myParseModule (hsc_dflags hsc_env) hspp_file hspp_buf - - ; case maybe_parsed of { - Left err -> do { msg_act (unitBag err, emptyBag) - ; return HscFail } ; - Right rdr_module -> do { - - ------------------- - -- RENAME and TYPECHECK - ------------------- - (tc_msgs, maybe_tc_result) - <- _scc_ "Typecheck-Rename" - tcRnModule hsc_env (ms_hsc_src mod_summary) - True{-save renamed syntax-} - rdr_module - - ; msg_act tc_msgs - ; case maybe_tc_result of { - Nothing -> return (HscChecked rdr_module Nothing Nothing); - Just tc_result -> do - let md = ModDetails { - md_types = tcg_type_env tc_result, - md_exports = tcg_exports tc_result, - md_insts = tcg_insts tc_result, - md_rules = [panic "no rules"] } - -- Rules are CoreRules, not the - -- RuleDecls we get out of the typechecker - return (HscChecked rdr_module - (tcg_rn_decls tc_result) - (Just (tcg_binds tc_result, - tcg_rdr_env tc_result, - md))) - }}}} - ------------------------------- -hscBootBackEnd :: HscEnv -> ModSummary -> Maybe ModIface -> Maybe ModGuts -> IO HscResult --- For hs-boot files, there's no code generation to do - -hscBootBackEnd hsc_env mod_summary maybe_old_iface Nothing - = return HscFail -hscBootBackEnd hsc_env mod_summary maybe_old_iface (Just ds_result) - = do { details <- mkBootModDetails hsc_env ds_result - - ; (new_iface, no_change) - <- {-# SCC "MkFinalIface" #-} - mkIface hsc_env maybe_old_iface ds_result details - - ; writeIfaceFile hsc_env (ms_location mod_summary) new_iface no_change - - -- And the answer is ... - ; dumpIfaceStats hsc_env - - ; return (HscRecomp details new_iface - False False Nothing) - } - ------------------------------- -hscBackEnd :: HscEnv -> ModSummary -> Maybe ModIface -> Maybe ModGuts -> IO HscResult - -hscBackEnd hsc_env mod_summary maybe_old_iface Nothing - = return HscFail - -hscBackEnd hsc_env mod_summary maybe_old_iface (Just ds_result) +-------------------------------------------------------------- +-- BackEnds +-------------------------------------------------------------- + +hscNewBootBackEnd :: BackEnd ModGuts (HscStatus, ModIface, ModDetails) +hscNewBootBackEnd hsc_env mod_summary maybe_old_iface ds_result + = do details <- mkBootModDetails hsc_env ds_result + (new_iface, no_change) + <- {-# SCC "MkFinalIface" #-} + mkIface hsc_env maybe_old_iface ds_result details + writeIfaceFile hsc_env (ms_location mod_summary) new_iface no_change + -- And the answer is ... + dumpIfaceStats hsc_env + return (HscRecomp False, new_iface, details) + +hscNewBackEnd :: BackEnd ModGuts (ModIface, ModDetails, CgGuts) +hscNewBackEnd hsc_env mod_summary maybe_old_iface ds_result = do { -- OMITTED: -- ; seqList imported_modules (return ()) - let one_shot = isOneShot (ghcMode dflags) - dflags = hsc_dflags hsc_env + let dflags = hsc_dflags hsc_env ------------------- -- FLATTENING @@ -442,103 +459,175 @@ hscBackEnd hsc_env mod_summary maybe_old_iface (Just ds_result) ; writeIfaceFile hsc_env (ms_location mod_summary) new_iface no_change - -- Space leak reduction: throw away the new interface if - -- we're in one-shot mode; we won't be needing it any - -- more. - ; final_iface <- if one_shot then return (error "no final iface") - else return new_iface - - -- Build the final ModDetails (except in one-shot mode, where - -- we won't need this information after compilation). - ; final_details <- if one_shot then return (error "no final details") - else return $! details - -- Emit external core ; emitExternalCore dflags cg_guts ------------------- - -- CONVERT TO STG and COMPLETE CODE GENERATION - ; (stub_h_exists, stub_c_exists, maybe_bcos) - <- hscCodeGen dflags cg_guts - - -- And the answer is ... - ; dumpIfaceStats hsc_env - - ; return (HscRecomp final_details - final_iface - stub_h_exists stub_c_exists - maybe_bcos) + -- Return the prepared code. + ; return (new_iface, details, cg_guts) } +-------------------------------------------------------------- +-- Code generators +-------------------------------------------------------------- + +-- Don't output any code. +hscCodeGenNothing :: CodeGen (ModIface, ModDetails, CgGuts) (HscStatus, ModIface, ModDetails) +hscCodeGenNothing hsc_env mod_summary (iface, details, cgguts) + = return (HscRecomp False, iface, details) + +-- Generate code and return both the new ModIface and the ModDetails. +hscCodeGenMake :: CodeGen (ModIface, ModDetails, CgGuts) (HscStatus, ModIface, ModDetails) +hscCodeGenMake hsc_env mod_summary (iface, details, cgguts) + = do hasStub <- hscCodeGenCompile hsc_env mod_summary cgguts + return (HscRecomp hasStub, iface, details) + +-- Here we don't need the ModIface and ModDetails anymore. +hscCodeGenOneShot :: CodeGen (ModIface, ModDetails, CgGuts) HscStatus +hscCodeGenOneShot hsc_env mod_summary (_, _, cgguts) + = do hasStub <- hscCodeGenCompile hsc_env mod_summary cgguts + return (HscRecomp hasStub) + +hscCodeGenCompile :: CodeGen CgGuts Bool +hscCodeGenCompile hsc_env mod_summary cgguts + = do let CgGuts{ -- This is the last use of the ModGuts in a compilation. + -- From now on, we just use the bits we need. + cg_module = this_mod, + cg_binds = core_binds, + cg_tycons = tycons, + cg_dir_imps = dir_imps, + cg_foreign = foreign_stubs, + cg_home_mods = home_mods, + cg_dep_pkgs = dependencies } = cgguts + dflags = hsc_dflags hsc_env + location = ms_location mod_summary + data_tycons = filter isDataTyCon tycons + -- cg_tycons includes newtypes, for the benefit of External Core, + -- but we don't generate any code for newtypes + + ------------------- + -- PREPARE FOR CODE GENERATION + -- Do saturation and convert to A-normal form + prepd_binds <- {-# SCC "CorePrep" #-} + corePrepPgm dflags core_binds data_tycons ; + ----------------- Convert to STG ------------------ + (stg_binds, cost_centre_info) + <- {-# SCC "CoreToStg" #-} + myCoreToStg dflags home_mods this_mod prepd_binds + ------------------ Code generation ------------------ + abstractC <- {-# SCC "CodeGen" #-} + codeGen dflags home_mods this_mod data_tycons + foreign_stubs dir_imps cost_centre_info + stg_binds + ------------------ Code output ----------------------- + (stub_h_exists,stub_c_exists) + <- codeOutput dflags this_mod location foreign_stubs + dependencies abstractC + return stub_c_exists + +hscCodeGenIdentity :: CodeGen a a +hscCodeGenIdentity hsc_env mod_summary a = return a + +hscCodeGenConst :: b -> CodeGen a b +hscCodeGenConst b hsc_env mod_summary a = return b + +hscCodeGenInteractive :: CodeGen (ModIface, ModDetails, CgGuts) + (InteractiveStatus, ModIface, ModDetails) +hscCodeGenInteractive hsc_env mod_summary (iface, details, cgguts) +#ifdef GHCI + = do let CgGuts{ -- This is the last use of the ModGuts in a compilation. + -- From now on, we just use the bits we need. + cg_module = this_mod, + cg_binds = core_binds, + cg_tycons = tycons, + cg_foreign = foreign_stubs, + cg_home_mods = home_mods, + cg_dep_pkgs = dependencies } = cgguts + dflags = hsc_dflags hsc_env + location = ms_location mod_summary + data_tycons = filter isDataTyCon tycons + -- cg_tycons includes newtypes, for the benefit of External Core, + -- but we don't generate any code for newtypes + + ------------------- + -- PREPARE FOR CODE GENERATION + -- Do saturation and convert to A-normal form + prepd_binds <- {-# SCC "CorePrep" #-} + corePrepPgm dflags core_binds data_tycons ; + ----------------- Generate byte code ------------------ + comp_bc <- byteCodeGen dflags prepd_binds data_tycons + ------------------ 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, iface, details) +#else + = panic "GHC not compiled with interpreter" +#endif -hscCodeGen dflags - CgGuts{ -- This is the last use of the ModGuts in a compilation. - -- From now on, we just use the bits we need. - cg_module = this_mod, - cg_binds = core_binds, - cg_tycons = tycons, - cg_dir_imps = dir_imps, - cg_foreign = foreign_stubs, - cg_dep_pkgs = dependencies } = do { - - let { data_tycons = filter isDataTyCon tycons } ; - -- cg_tycons includes newtypes, for the benefit of External Core, - -- but we don't generate any code for newtypes +------------------------------ +hscFileCheck :: HscEnv -> ModSummary -> IO (Maybe HscChecked) +hscFileCheck hsc_env mod_summary = do { ------------------- - -- PREPARE FOR CODE GENERATION - -- Do saturation and convert to A-normal form - prepd_binds <- {-# SCC "CorePrep" #-} - corePrepPgm dflags core_binds data_tycons ; - - case hscTarget dflags of - HscNothing -> return (False, False, Nothing) - - HscInterpreted -> -#ifdef GHCI - do ----------------- Generate byte code ------------------ - comp_bc <- byteCodeGen dflags prepd_binds data_tycons - - ------------------ Create f-x-dynamic C-side stuff --- - (istub_h_exists, istub_c_exists) - <- outputForeignStubs dflags foreign_stubs - - return ( istub_h_exists, istub_c_exists, Just comp_bc ) -#else - panic "GHC not compiled with interpreter" -#endif + -- PARSE + ------------------- + ; let dflags = hsc_dflags hsc_env + hspp_file = expectJust "hscFileFrontEnd" (ms_hspp_file mod_summary) + hspp_buf = ms_hspp_buf mod_summary - other -> - do - ----------------- Convert to STG ------------------ - (stg_binds, cost_centre_info) <- {-# SCC "CoreToStg" #-} - myCoreToStg dflags this_mod prepd_binds + ; maybe_parsed <- myParseModule dflags hspp_file hspp_buf - ------------------ Code generation ------------------ - abstractC <- {-# SCC "CodeGen" #-} - codeGen dflags this_mod data_tycons foreign_stubs - dir_imps cost_centre_info stg_binds + ; case maybe_parsed of { + Left err -> do { printBagOfErrors dflags (unitBag err) + ; return Nothing } ; + Right rdr_module -> do { - ------------------ Code output ----------------------- - (stub_h_exists, stub_c_exists) - <- codeOutput dflags this_mod foreign_stubs - dependencies abstractC + ------------------- + -- RENAME and TYPECHECK + ------------------- + (tc_msgs, maybe_tc_result) + <- _scc_ "Typecheck-Rename" + tcRnModule hsc_env (ms_hsc_src mod_summary) + True{-save renamed syntax-} + rdr_module - return (stub_h_exists, stub_c_exists, Nothing) - } + ; printErrorsAndWarnings dflags tc_msgs + ; case maybe_tc_result of { + Nothing -> return (Just (HscChecked rdr_module Nothing Nothing)); + Just tc_result -> do + let md = ModDetails { + md_types = tcg_type_env tc_result, + md_exports = tcg_exports tc_result, + md_insts = tcg_insts tc_result, + md_rules = [panic "no rules"] } + -- Rules are CoreRules, not the + -- RuleDecls we get out of the typechecker + rnInfo = do decl <- tcg_rn_decls tc_result + imports <- tcg_rn_imports tc_result + let exports = tcg_rn_exports tc_result + return (decl,imports,exports) + return (Just (HscChecked rdr_module + rnInfo + (Just (tcg_binds tc_result, + tcg_rdr_env tc_result, + md)))) + }}}} hscCmmFile :: DynFlags -> FilePath -> IO Bool hscCmmFile dflags filename = do - maybe_cmm <- parseCmmFile dflags filename + maybe_cmm <- parseCmmFile dflags (mkHomeModules []) filename case maybe_cmm of Nothing -> return False Just cmm -> do - codeOutput dflags no_mod NoStubs [] [cmm] + codeOutput dflags no_mod no_loc NoStubs [] [cmm] return True where no_mod = panic "hscCmmFile: no_mod" + no_loc = ModLocation{ ml_hs_file = Just filename, + ml_hi_file = panic "hscCmmFile: no hi file", + ml_obj_file = panic "hscCmmFile: no obj file" } myParseModule dflags src_filename maybe_src_buf @@ -571,13 +660,13 @@ myParseModule dflags src_filename maybe_src_buf }} -myCoreToStg dflags this_mod prepd_binds +myCoreToStg dflags home_mods this_mod prepd_binds = do stg_binds <- {-# SCC "Core2Stg" #-} - coreToStg dflags prepd_binds + coreToStg home_mods prepd_binds - (stg_binds2, cost_centre_info) <- {-# SCC "Core2Stg" #-} - stg2stg dflags this_mod stg_binds + (stg_binds2, cost_centre_info) <- {-# SCC "Stg2Stg" #-} + stg2stg dflags home_mods this_mod stg_binds return (stg_binds2, cost_centre_info) \end{code} @@ -658,7 +747,7 @@ hscTcExpr hsc_env expr Nothing -> return Nothing ; -- Parse error Just (Just (L _ (ExprStmt expr _ _))) -> tcRnExpr hsc_env icontext expr ; - Just other -> do { errorMsg ("not an expression: `" ++ expr ++ "'") ; + Just other -> do { errorMsg (hsc_dflags hsc_env) (text "not an expression:" <+> quotes (text expr)) ; return Nothing } ; } } @@ -672,7 +761,7 @@ hscKcType hsc_env str ; let icontext = hsc_IC hsc_env ; case maybe_type of { Just ty -> tcRnType hsc_env icontext ty ; - Just other -> do { errorMsg ("not an type: `" ++ str ++ "'") ; + Just other -> do { errorMsg (hsc_dflags hsc_env) (text "not an type:" <+> quotes (text str)) ; return Nothing } ; Nothing -> return Nothing } } #endif @@ -720,34 +809,6 @@ hscParseThing parser dflags str %************************************************************************ %* * -\subsection{Getting information about an identifer} -%* * -%************************************************************************ - -\begin{code} -#ifdef GHCI -hscGetInfo -- like hscStmt, but deals with a single identifier - :: HscEnv - -> String -- The identifier - -> IO [GetInfoResult] - -hscGetInfo hsc_env str - = do maybe_rdr_name <- hscParseIdentifier (hsc_dflags hsc_env) str - case maybe_rdr_name of { - Nothing -> return []; - Just (L _ rdr_name) -> do - - maybe_tc_result <- tcRnGetInfo hsc_env (hsc_IC hsc_env) rdr_name - - case maybe_tc_result of - Nothing -> return [] - Just things -> return things - } -#endif -\end{code} - -%************************************************************************ -%* * Desugar, simplify, convert to bytecode, and link an expression %* * %************************************************************************