\begin{code}
module HscMain ( HscResult(..), hscMain,
+#ifdef GHCI
+ hscExpr,
+#endif
initPersistentCompilerState ) where
#include "HsVersions.h"
-import Maybe ( isJust )
-import IO ( hPutStr, hPutStrLn, stderr )
+#ifdef GHCI
+import RdrHsSyn ( RdrNameHsExpr )
+import Rename ( renameExpr )
+import StringBuffer ( stringToStringBuffer, freeStringBuffer )
+import Unique ( Uniquable(..) )
+import Type ( Type, splitTyConApp_maybe )
+import PrelNames ( ioTyConKey )
+import ByteCodeGen ( byteCodeGen )
+#endif
+
import HsSyn
import StringBuffer ( hGetStringBuffer )
-import Parser ( parse )
+import Parser
import Lex ( PState(..), ParseResult(..) )
import SrcLoc ( mkSrcLoc )
-
-import Rename ( renameModule, checkOldIface, closeIfaceDecls )
+import Rename ( checkOldIface, renameModule, closeIfaceDecls )
import Rules ( emptyRuleBase )
import PrelInfo ( wiredInThingEnv, wiredInThings )
import PrelNames ( knownKeyNames )
-import PrelRules ( builtinRules )
import MkIface ( completeIface, mkModDetailsFromIface, mkModDetails,
- writeIface )
-import TcModule ( TcResults(..), typecheckModule )
+ writeIface, pprIface )
+import TcModule
import InstEnv ( emptyInstEnv )
-import Desugar ( deSugar )
-import SimplCore ( core2core )
-import OccurAnal ( occurAnalyseBinds )
+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, moduleName, mkModuleInThisPackage )
+import Module ( ModuleName, moduleName, mkHomeModule )
import CmdLineOpts
-import ErrUtils ( dumpIfSet_dyn )
+import ErrUtils ( dumpIfSet_dyn, showPass )
import Util ( unJust )
import UniqSupply ( mkSplitUniqSupply )
import Bag ( emptyBag )
import Outputable
import Interpreter
+import CmStaticInfo ( GhciMode(..) )
import HscStats ( ppSourceStats )
import HscTypes ( ModDetails, ModIface(..), PersistentCompilerState(..),
PersistentRenamerState(..), ModuleLocation(..),
HomeSymbolTable,
- OrigNameEnv(..), PackageRuleBase, HomeIfaceTable,
+ NameSupply(..), PackageRuleBase, HomeIfaceTable,
typeEnvClasses, typeEnvTyCons, emptyIfaceTable )
import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM )
import OccName ( OccName )
import Name ( emptyNameEnv )
import Module ( Module, lookupModuleEnvByName )
+import Monad ( when )
+import Maybe ( isJust )
+import IO
\end{code}
\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],ItblEnv)) -- interpreted code, if any
- PersistentCompilerState -- updated PCS
-
- | HscFail PersistentCompilerState -- updated PCS
+ -- 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
+ :: GhciMode
+ -> DynFlags
-> Bool -- source unchanged?
-> ModuleLocation -- location info
-> Maybe ModIface -- old interface, if available
-> PersistentCompilerState -- IN: persistent compiler state
-> IO HscResult
-hscMain dflags source_unchanged location maybe_old_iface hst hit pcs
+hscMain ghci_mode dflags source_unchanged location maybe_old_iface hst hit pcs
= do {
- putStrLn "CHECKING OLD IFACE";
- (pcs_ch, check_errs, (recomp_reqd, maybe_checked_iface))
- <- checkOldIface dflags hit hst pcs (unJust (ml_hi_file location) "hscMain")
- source_unchanged maybe_old_iface;
- if check_errs then
+ 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 {
what_next | recomp_reqd || no_old_iface = hscRecomp
| otherwise = hscNoRecomp
;
- what_next dflags location maybe_checked_iface
+ what_next ghci_mode dflags location maybe_checked_iface
hst hit pcs_ch
}}
-hscNoRecomp 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 NOT REQUIRED";
- -- 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"
- this_mod = mi_module old_iface
- ;
+ hPutStrLn stderr "compilation IS NOT required";
+ let { bomb = panic "hscNoRecomp:OneShot" };
+ return (HscNoRecomp pcs_ch bomb bomb)
+ }
+ | otherwise
+ = do {
+ hPutStr stderr "compilation IS NOT required";
+ when (verbosity dflags /= 1) $ hPutStrLn stderr "";
+
-- CLOSURE
(pcs_cl, closure_errs, cl_hs_decls)
<- closeIfaceDecls dflags hit hst pcs_ch old_iface ;
else do {
-- TYPECHECK
- maybe_tc_result
- <- typecheckModule dflags this_mod pcs_cl hst hit cl_hs_decls;
+ maybe_tc_result <- typecheckModule dflags pcs_cl hst
+ old_iface alwaysQualify cl_hs_decls;
case maybe_tc_result of {
Nothing -> return (HscFail pcs_cl);
- Just tc_result -> do {
+ Just (pcs_tc, tc_result) -> do {
- let pcs_tc = tc_pcs tc_result
- env_tc = tc_env tc_result
- local_insts = tc_insts tc_result
+ 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_insts local_rules
+ let new_details = mkModDetailsFromIface env_tc local_rules
;
- return (HscOK new_details
- Nothing -- tells CM to use old iface and linkables
- Nothing Nothing -- foreign export stuff
- Nothing -- ibinds
- pcs_tc)
+ return (HscNoRecomp pcs_tc new_details old_iface)
}}}}
-hscRecomp dflags location maybe_checked_iface hst hit pcs_ch
- = do {
- hPutStrLn stderr "COMPILATION IS REQUIRED";
-
- -- what target are we shooting for?
- let toInterp = dopt_HscLang dflags == HscInterpreted
- ;
- -- PARSE
- maybe_parsed
- <- myParseModule dflags (unJust (ml_hspp_file location) "hscRecomp:hspp");
- case maybe_parsed of {
- Nothing -> return (HscFail pcs_ch);
- Just rdr_module -> do {
-
- -- RENAME
- let this_mod = mkModuleInThisPackage (hsModuleName rdr_module)
- ;
- show_pass dflags "Renamer";
- (pcs_rn, maybe_rn_result)
- <- renameModule dflags 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 -> do { hPutStrLn stderr "Typechecked failed"
- ; return (HscFail pcs_rn) } ;
- Just tc_result -> do {
-
- let pcs_tc = tc_pcs tc_result
- env_tc = tc_env 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 (pcs_rules pcs_tc) this_mod tc_result hst
- ;
- -- CONVERT TO STG
- (stg_binds, oa_tidy_binds, cost_centre_info, top_level_ids)
- <- myCoreToStg dflags this_mod tidy_binds
- ;
- -- 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 the final interface
- final_iface
- <- mkFinalIface dflags location maybe_checked_iface new_iface new_details
- ;
- -- do the rest of code generation/emission
- (maybe_stub_h_filename, maybe_stub_c_filename, maybe_ibinds)
- <- restOfCodeGeneration dflags toInterp this_mod
- (map ideclName (hsModuleImports rdr_module))
- cost_centre_info foreign_stuff env_tc stg_binds oa_tidy_binds
- hit (pcs_PIT pcs_tc)
- ;
- -- and the answer is ...
- return (HscOK new_details (Just final_iface)
- maybe_stub_h_filename maybe_stub_c_filename
- maybe_ibinds pcs_tc)
- }}}}}}}
-
-
-
-mkFinalIface dflags location maybe_old_iface new_iface new_details
+hscRecomp ghci_mode dflags location maybe_checked_iface hst hit pcs_ch
+ = do {
+ ; when (verbosity dflags >= 1) $
+ hPutStr stderr "compilation IS required";
+ -- mode -v1 tries to keep everything on one line
+ when (verbosity dflags > 1) $
+ hPutStrLn stderr "";
+
+ -- 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_rn);
+ Just (print_unqualified, (is_exported, new_iface, rn_hs_decls)) -> do {
+
+ -------------------
+ -- TYPECHECK
+ -------------------
+ ; maybe_tc_result
+ <- _scc_ "TypeCheck" typecheckModule dflags pcs_rn hst new_iface
+ print_unqualified rn_hs_decls
+ ; case maybe_tc_result of {
+ Nothing -> return (HscFail pcs_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 is_exported 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 if dopt Opt_D_dump_hi_diffs dflags then
- printDump (text "INTERFACE UNCHANGED")
- else return ()
+ -> 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)
- -> do dumpIfSet_dyn dflags Opt_D_dump_hi_diffs "NEW INTERFACE" sdoc
+ (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
- writeIface (unJust (ml_hi_file location) "hscRecomp:hi") new_iface
+ when (ghci_mode /= Interactive)
+ (writeIface (unJust "hscRecomp:hi" (ml_hi_file location))
+ new_iface)
return new_iface
myParseModule dflags src_filename
= do -------------------------- Parser ----------------
- show_pass dflags "Parser"
- -- _scc_ "Parser"
+ showPass dflags "Parser"
+ _scc_ "Parser" do
buf <- hGetStringBuffer True{-expand tabs-} src_filename
let glaexts | dopt Opt_GlasgowExts dflags = 1#
- | otherwise = 0#
+ | otherwise = 0#
- case parse buf PState{ bol = 0#, atbol = 1#,
- context = [], glasgow_exts = glaexts,
- loc = mkSrcLoc (_PK_ src_filename) 1 } of {
+ 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);
return Nothing };
+
POk _ rdr_module@(HsModule mod_name _ _ _ _ _ _) -> do {
dumpIfSet_dyn dflags Opt_D_dump_parsed "Parser" (ppr rdr_module) ;
}}
-restOfCodeGeneration dflags toInterp this_mod imported_module_names cost_centre_info
- foreign_stuff env_tc stg_binds oa_tidy_binds
+simplThenTidy dflags pcs hst this_mod is_exported binds rules
+ = do -- Do main Core-language transformations ---------
+ -- _scc_ "Core2Core"
+ (simplified, orphan_rules)
+ <- core2core dflags pcs hst is_exported 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 (ibinds,itbl_env)
- <- stgToInterpSyn (map fst stg_binds) local_tycons local_classes
- return (Nothing, Nothing, Just (ibinds,itbl_env))
+ = do (bcos,itbl_env)
+ <- byteCodeGen dflags tidy_binds local_tycons local_classes
+ return (Nothing, Nothing, Just (bcos,itbl_env))
| otherwise
- = do -------------------------- Code generation -------------------------------
- show_pass dflags "CodeGen"
- -- _scc_ "CodeGen"
- abstractC <- codeGen dflags this_mod imported_modules
+ = 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 -------------------------------
- show_pass dflags "CodeOutput"
- -- _scc_ "CodeOutput"
(maybe_stub_h_name, maybe_stub_c_name)
<- codeOutput dflags this_mod local_tycons
- oa_tidy_binds stg_binds
+ tidy_binds stg_binds
c_code h_code abstractC
return (maybe_stub_h_name, maybe_stub_c_name, Nothing)
local_tycons = typeEnvTyCons env_tc
local_classes = typeEnvClasses env_tc
imported_modules = map mod_name_to_Module imported_module_names
- (fe_binders,h_code,c_code) = foreign_stuff
+ (h_code,c_code,fe_binders) = foreign_stuff
mod_name_to_Module :: ModuleName -> Module
mod_name_to_Module nm
(ppr nm)
-dsThenSimplThenTidy dflags rule_base this_mod tc_result hst
- = do -------------------------- Desugaring ----------------
- -- _scc_ "DeSugar"
- show_pass dflags "DeSugar"
- ds_uniqs <- mkSplitUniqSupply 'd'
- (desugared, rules, h_code, c_code, fe_binders)
- <- deSugar dflags this_mod ds_uniqs hst tc_result
+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
- -------------------------- Main Core-language transformations ----------------
- -- _scc_ "Core2Core"
- show_pass dflags "Core2Core"
- (simplified, orphan_rules)
- <- core2core dflags rule_base hst desugared rules
+ --let bcos = byteCodeGen dflags tidy_binds local_tycons local_classes
- -- Do the final tidy-up
- show_pass dflags "CoreTidy"
- (tidy_binds, tidy_orphan_rules)
- <- tidyCorePgm dflags this_mod simplified orphan_rules
- return (tidy_binds, tidy_orphan_rules, (fe_binders,h_code,c_code))
+ stg_binds <- _scc_ "Core2Stg" coreToStg dflags this_mod tidy_binds
+ (stg_binds2, cost_centre_info)
+ <- _scc_ "Core2Stg" stg2stg dflags this_mod stg_binds
-myCoreToStg dflags this_mod tidy_binds
- = do
- c2s_uniqs <- mkSplitUniqSupply 'c'
- st_uniqs <- mkSplitUniqSupply 'g'
- let occ_anal_tidy_binds = occurAnalyseBinds tidy_binds
+ return (stg_binds2, cost_centre_info)
+ where
+ local_tycons = typeEnvTyCons env_tc
+ local_classes = typeEnvClasses env_tc
+\end{code}
- () <- 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
+%************************************************************************
+%* *
+\subsection{Compiling an expression}
+%* *
+%************************************************************************
+
+\begin{code}
+#ifdef GHCI
+hscExpr
+ :: DynFlags
+ -> HomeSymbolTable
+ -> HomeIfaceTable
+ -> PersistentCompilerState -- IN: persistent compiler state
+ -> Module -- Context for compiling
+ -> String -- The expression
+ -> Bool -- Should we wrap print if not IO-typed?
+ -> IO ( PersistentCompilerState,
+ Maybe (UnlinkedBCOExpr, PrintUnqualified, Type) )
+
+hscExpr dflags hst hit pcs0 this_module expr wrap_print
+ = 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 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
+
+ -- if it isn't an IO-typed expression,
+ -- wrap "print" around it & recompile...
+ let { is_IO_type = case splitTyConApp_maybe ty of {
+ Just (tycon, _) -> getUnique tycon == ioTyConKey;
+ Nothing -> False }
+ };
+
+ if (wrap_print && not is_IO_type)
+ then do (new_pcs, maybe_stuff)
+ <- hscExpr dflags hst hit pcs2 this_module
+ ("PrelIO.print (" ++ expr ++ ")") False
+ case maybe_stuff of
+ Nothing -> return (new_pcs, maybe_stuff)
+ Just (bcos, _, _) ->
+ return (new_pcs, Just (bcos, print_unqual, ty))
+ else do
+
+ -- Desugar it
+ ds_expr <- deSugarExpr dflags pcs2 hst this_module
+ print_unqual tc_expr;
+
+ -- Simplify it
+ simpl_expr <- simplifyExpr dflags pcs2 hst ds_expr;
+
+ -- Saturate it
+ sat_expr <- coreSatExpr dflags simpl_expr;
+
+ -- ToDo: need to do SRTs?
+
+ -- Convert to BCOs
+ bcos <- coreExprToBCOs dflags sat_expr
+
+ return (pcs2, Just (bcos, print_unqual, ty));
+ }}}}
+
+hscParseExpr :: DynFlags -> String -> IO (Maybe RdrNameHsExpr)
+hscParseExpr dflags str
+ = do -------------------------- Parser ----------------
+ showPass dflags "Parser"
+ _scc_ "Parser" do
- show_pass dflags "Stg2Stg"
- -- _scc_ "Stg2Stg"
- (stg_binds2, cost_centre_info) <- stg2stg dflags this_mod st_uniqs stg_binds
- let final_ids = collectFinalStgBinders (map fst stg_binds2)
+ buf <- stringToStringBuffer str
- return (stg_binds2, occ_anal_tidy_binds, cost_centre_info, final_ids)
+ let glaexts | dopt Opt_GlasgowExts dflags = 1#
+ | otherwise = 0#
+ case parseExpr buf PState{ bol = 0#, atbol = 1#,
+ context = [], glasgow_exts = glaexts,
+ loc = mkSrcLoc SLIT("<no file>") 0 } of {
-show_pass dflags what
- = if dopt Opt_D_show_passes dflags
- then hPutStr stderr ("*** "++what++":\n")
- else return ()
-\end{code}
+ PFailed err -> do { hPutStrLn stderr (showSDoc err);
+ freeStringBuffer buf;
+ return Nothing };
+
+ 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
+\end{code}
%************************************************************************
%* *
)
initPersistentRenamerState :: IO PersistentRenamerState
- = do ns <- mkSplitUniqSupply 'r'
+ = do us <- mkSplitUniqSupply 'r'
return (
- PRS { prsOrig = Orig { origNames = initOrigNames,
- origIParam = emptyFM },
- prsDecls = (emptyNameEnv, 0),
- prsInsts = (emptyBag, 0),
- prsRules = (emptyBag, 0),
- prsNS = ns
+ PRS { prsOrig = NameSupply { nsUniqs = us,
+ nsNames = initOrigNames,
+ nsIPs = emptyFM },
+ prsDecls = (emptyNameEnv, 0),
+ prsInsts = (emptyBag, 0),
+ prsRules = (emptyBag, 0),
+ prsImpMods = emptyFM
}
)
projects / ghc-hetmet.git / blobdiff