Commit b9827234 authored by sewardj's avatar sewardj
Browse files

[project @ 2000-10-25 16:44:28 by sewardj]

Wibbles from Julian
parent bac531aa
......@@ -8,7 +8,8 @@ module HscMain ( hscMain ) where
#include "HsVersions.h"
import IO ( hPutStr, stderr )
import Monad ( when )
import IO ( hPutStr, hClose, stderr, openFile, IOMode(..) )
import HsSyn
import RdrHsSyn ( RdrNameHsModule )
......@@ -18,11 +19,11 @@ import Parser ( parse )
import Lex ( PState(..), ParseResult(..) )
import SrcLoc ( mkSrcLoc )
import Rename ( renameModule )
import Rename ( renameModule, checkOldIface )
import PrelInfo ( wiredInThings )
import PrelRules ( builtinRules )
import MkIface ( writeIface )
import MkIface ( completeIface, mkModDetailsFromIface )
import TcModule ( TcResults(..), typecheckModule )
import Desugar ( deSugar )
import SimplCore ( core2core )
......@@ -35,15 +36,29 @@ import SimplStg ( stg2stg )
import CodeGen ( codeGen )
import CodeOutput ( codeOutput )
import Module ( ModuleName, moduleNameUserString )
import Module ( ModuleName, moduleNameUserString,
moduleUserString, moduleName )
import CmdLineOpts
import ErrUtils ( ghcExit, doIfSet, dumpIfSet )
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 )
import RnMonad ( ExportItem, ParsedIface(..) )
import CmSummarise ( ModSummary )
import InterpSyn ( UnlinkedIBind )
import StgInterp ( ItblEnv )
import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM )
import OccName ( OccName, pprOccName )
import Name ( Name, nameModule )
\end{code}
......@@ -69,7 +84,7 @@ data HscResult
hscMain
:: DynFlags
-> 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.)
-> HomeSymbolTable -- for home module ModDetails
-> PersistentCompilerState -- IN: persistent compiler state
......@@ -90,7 +105,7 @@ hscMain dflags core_cmds stg_cmds summary maybe_old_iface
let no_old_iface = not (isJust maybe_checked_iface)
what_next | recomp_reqd || no_old_iface = hscRecomp
| otherwise = hscNoRecomp
;
return (what_next dflags core_cmds stg_cmds summary hit hst
pcs2 maybe_checked_iface)
}}
......@@ -99,13 +114,13 @@ hscMain dflags core_cmds stg_cmds summary maybe_old_iface
hscNoRecomp dflags core_cmds stg_cmds summary hit hst pcs maybe_old_iface
= do {
-- we definitely expect to have the old interface available
old_iface = case maybe_old_iface of
Just old_if -> old_if
Nothing -> panic "hscNoRecomp:old_iface"
let old_iface = case maybe_old_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 old_iface
<- closeIfaceDecls dflags finder hit hst pcs old_iface ;
if closure_errs then
return (HscFail cl_pcs)
else do {
......@@ -124,10 +139,10 @@ hscNoRecomp dflags core_cmds stg_cmds summary hit hst pcs maybe_old_iface
local_classes = tc_classes 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 final_details
Nothing -- tells CM to use old iface and linkables
Nothing Nothing -- foreign export stuff
......@@ -139,8 +154,8 @@ hscNoRecomp dflags core_cmds stg_cmds summary hit hst pcs maybe_old_iface
hscRecomp dflags core_cmds stg_cmds summary hit hst pcs maybe_old_iface
= do {
-- what target are we shooting for?
let toInterp = dopt_HscLang dflags == HscInterpreted;
let toInterp = dopt_HscLang dflags == HscInterpreted
;
-- PARSE
maybe_parsed <- myParseModule dflags summary;
case maybe_parsed of {
......@@ -167,29 +182,29 @@ hscRecomp dflags core_cmds stg_cmds summary hit hst pcs maybe_old_iface
local_tycons = tc_tycons tc_result
local_classes = tc_classes 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 mod tc_result ds_uniqs
;
-- CONVERT TO STG
(stg_binds, cost_centre_info, top_level_ids)
<- myCoreToStg c2s_uniqs st_uniqs this_mod tidy_binds
;
-- cook up a new ModDetails now we (finally) have all the bits
let new_details = mkModDetails tc_env local_insts tidy_binds
top_level_ids orphan_rules
;
-- and possibly create a new ModIface
let maybe_final_iface = completeIface maybe_old_iface new_iface new_details
;
-- do the rest of code generation/emission
(maybe_ibinds, maybe_stub_h_filename, maybe_stub_c_filename)
<- restOfCodeGeneration toInterp
this_mod imported_modules cost_centre_info
fe_binders tc_env stg_binds
;
-- and the answer is ...
return (HscOK new_details maybe_final_iface
maybe_stub_h_filename maybe_stub_c_filename
......@@ -203,10 +218,11 @@ myParseModule dflags summary
-- _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)
= 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
......@@ -217,8 +233,8 @@ myParseModule dflags summary
context = [], glasgow_exts = glaexts,
loc = mkSrcLoc src_filename 1 } of {
PFailed err -> do hPutStrLn stderr (showSDoc err)
return Nothing
PFailed err -> do { hPutStrLn stderr (showSDoc err);
return Nothing };
POk _ rdr_module@(HsModule mod_name _ _ _ _ _ _) ->
dumpIfSet_dyn dflags Opt_D_dump_parsed "Parser" (ppr rdr_module)
......@@ -226,6 +242,7 @@ myParseModule dflags summary
(ppSourceStats False rdr_module)
return (Just rdr_module)
}
restOfCodeGeneration toInterp this_mod imported_modules cost_centre_info
......@@ -295,34 +312,6 @@ myCoreToStg c2s_uniqs st_uniqs this_mod tidy_binds
#if 0
-- BEGIN old stuff
-------------------------- 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 | dopt Opt_GlasgowExts dflags = 1#
| otherwise = 0#
case parse buf PState{ bol = 0#, atbol = 1#,
context = [], glasgow_exts = glaexts,
loc = mkSrcLoc src_filename 1 } of {
PFailed err -> return (HscErrs pcs (unitBag err) emptyBag)
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
......@@ -330,87 +319,6 @@ myCoreToStg c2s_uniqs st_uniqs this_mod tidy_binds
mkSplitUniqSupply 'g' >>= \ st_uniqs -> -- stg-to-stg passes
mkSplitUniqSupply 'n' >>= \ ncg_uniqs -> -- native-code generator
-------------------------- Rename ----------------
show_pass "Renamer" >>
_scc_ "Renamer"
renameModule dflags finder pcs hst rdr_module
>>= \ (pcs_rn, 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 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"
......@@ -444,9 +352,6 @@ myCoreToStg c2s_uniqs st_uniqs this_mod tidy_binds
-------------------------- Final report -------------------------------
reportCompile mod_name (showSDoc (ppSourceStats True rdr_module)) >>
#endif
ghcExit 0
} }
where
......@@ -471,21 +376,14 @@ myCoreToStg c2s_uniqs st_uniqs this_mod tidy_binds
\begin{code}
initPersistentCompilerState :: IO PersistentCompilerState
initPersistentCompilerState
<<<<<<< HscMain.lhs
= do prs <- initPersistentRenamerState
return (
PCS { pcs_PST = initPackageDetails,
pcs_insts = emptyInstEnv,
pcs_rules = emptyRuleEnv,
pcs_PRS = initPersistentRenamerState
pcs_PRS = prs
}
)
=======
= PCS { pcs_PST = initPackageDetails,
pcs_insts = emptyInstEnv,
pcs_rules = initRules,
pcs_PRS = initPersistentRenamerState }
>>>>>>> 1.12
initPackageDetails :: PackageSymbolTable
initPackageDetails = extendTypeEnv emptyModuleEnv wiredInThings
......@@ -494,7 +392,7 @@ initPersistentRenamerState :: IO PersistentRenamerState
= do ns <- mkSplitUniqSupply 'r'
return (
PRS { prsOrig = Orig { origNames = initOrigNames,
origIParam = emptyFM },
origIParam = emptyFM },
prsDecls = emptyNameEnv,
prsInsts = emptyBag,
prsRules = emptyBag,
......@@ -509,7 +407,7 @@ 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]
......@@ -560,6 +458,7 @@ writeIface this_mod old_iface new_iface
full_new_iface = completeIface new_iface local_tycons local_classes
inst_info final_ids tidy_binds
tidy_orphan_rules
isNothing = not . isJust
\end{code}
......@@ -624,7 +523,7 @@ pprExport (mod, items)
\begin{code}
pprUsage :: ImportVersion OccName -> SDoc
pprUsage (m, has_orphans, is_boot, whats_imported)
= hsep [ptext SLIT("import"), pprModuleName m,
= hsep [ptext SLIT("import"), ppr (moduleName m),
pp_orphan, pp_boot,
upp_import_versions whats_imported
] <> semi
......
......@@ -14,13 +14,15 @@ import HsSyn
import HsCore ( HsIdInfo(..), UfExpr(..), toUfExpr, toUfBndr )
import HsTypes ( toHsTyVars )
import BasicTypes ( Fixity(..), NewOrData(..),
Version, bumpVersion, isLoopBreaker
Version, initialVersion, bumpVersion, isLoopBreaker
)
import RnMonad
import RnHsSyn ( RenamedInstDecl, RenamedTyClDecl )
import TcHsSyn ( TypecheckedRuleDecl )
import HscTypes ( VersionInfo(..), IfaceDecls(..), ModIface(..), ModDetails(..),
TyThing(..), DFunId, TypeEnv, isTyClThing
TyThing(..), DFunId, TypeEnv, isTyClThing, Avails,
WhatsImported(..), GenAvailInfo(..), RdrAvailInfo,
ImportVersion
)
import CmdLineOpts
......@@ -42,6 +44,7 @@ import Name ( isLocallyDefined, getName,
plusNameEnv, lookupNameEnv, emptyNameEnv, mkNameEnv,
extendNameEnv, lookupNameEnv_NF, nameEnvElts
)
import OccName ( pprOccName )
import TyCon ( TyCon, getSynTyConDefn, isSynTyCon, isNewTyCon, isAlgTyCon,
tyConTheta, tyConTyVars, tyConDataCons, tyConFamilySize
)
......@@ -50,8 +53,10 @@ import FieldLabel ( fieldLabelType )
import Type ( splitSigmaTy, tidyTopType, deNoteType )
import SrcLoc ( noSrcLoc )
import Outputable
import Module ( ModuleName, moduleName )
import List ( partition )
import IO ( IOMode(..), openFile, hClose )
\end{code}
......@@ -597,8 +602,8 @@ diffDecls old_vers old_fixities new_fixities old new
%************************************************************************
\begin{code}
writeIface :: Finder -> ModIface -> IO ()
writeIface finder mod_iface
--writeIface :: Finder -> ModIface -> IO ()
writeIface {-finder-} mod_iface
= do { let filename = error "... find the right file..."
; if_hdl <- openFile filename WriteMode
; printForIface if_hdl (pprIface mod_iface)
......@@ -614,7 +619,7 @@ pprIface iface
<+> int opt_HiVersion
<+> ptext SLIT("where")
, pprExports (mi_exports iface)
, pprExport (mi_exports iface)
, vcat (map pprUsage (mi_usages iface))
, pprIfaceDecls (vers_decls version_info)
......@@ -624,7 +629,7 @@ pprIface iface
, pprDeprecs (mi_deprecs iface)
]
where
version_info = mi_version mod_iface
version_info = mi_version iface
exp_vers = vers_exports version_info
rule_vers = vers_rules version_info
......@@ -640,12 +645,12 @@ When printing export lists, we print like this:
\begin{code}
pprExport :: (ModuleName, Avails) -> SDoc
pprExport (mod, items)
= hsep [ ptext SLIT("__export "), ppr mod, hsep (map upp_avail items) ] <> semi
= hsep [ ptext SLIT("__export "), ppr mod, hsep (map pp_avail items) ] <> semi
where
pp_avail :: RdrAvailInfo -> SDoc
pp_avail (Avail name) = pprOccName name
pp_avail (AvailTC name []) = empty
pp_avail (AvailTC name ns) = hcat [pprOccName name, bang, upp_export ns']
pp_avail (AvailTC name ns) = hcat [pprOccName name, bang, pp_export ns']
where
bang | name `elem` ns = empty
| otherwise = char '|'
......@@ -659,7 +664,7 @@ pprExport (mod, items)
\begin{code}
pprUsage :: ImportVersion Name -> SDoc
pprUsage (m, has_orphans, is_boot, whats_imported)
= hsep [ptext SLIT("import"), pprModuleName m,
= hsep [ptext SLIT("import"), ppr (moduleName m),
pp_orphan, pp_boot,
pp_versions whats_imported
] <> semi
......@@ -696,8 +701,8 @@ pprIfaceDecls version_map fixity_map decls
Just v -> int v
-- Print fixities relevant to the decl
ppr_fixes d = vcat (map ppr_fix (fixities d))
fixities d = [ ppr fix <+> ppr n <> semi
ppr_fixes d = vcat (map ppr_fix d)
ppr_fix d = [ ppr fix <+> ppr n <> semi
| n <- tyClDeclNames d,
[Just fix] <- lookupNameEnv fixity_map n
]
......
......@@ -4,7 +4,7 @@
\section[Rename]{Renaming and dependency analysis passes}
\begin{code}
module Rename ( renameModule, closeIfaceDecls ) where
module Rename ( renameModule, closeIfaceDecls, checkOldIface ) where
#include "HsVersions.h"
......
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