#include "HsVersions.h"
-import Maybe ( isJust )
-import IO ( hPutStrLn, stderr )
+#ifdef GHCI
+import RdrHsSyn ( RdrNameHsExpr )
+import CoreToStg ( coreToStgExpr )
+import StringBuffer ( stringToStringBuffer, freeStringBuffer )
+#endif
+
import HsSyn
-import StringBuffer ( hGetStringBuffer,
- stringToStringBuffer, freeStringBuffer )
+import StringBuffer ( hGetStringBuffer )
import Parser
-import RdrHsSyn ( RdrNameHsExpr )
import Lex ( PState(..), ParseResult(..) )
import SrcLoc ( mkSrcLoc )
-
import Rename
import Rules ( emptyRuleBase )
import PrelInfo ( wiredInThingEnv, wiredInThings )
import OccurAnal ( occurAnalyseBinds )
import CoreUtils ( coreBindsSize )
import CoreTidy ( tidyCorePgm )
-import CoreToStg ( topCoreBindsToStg, coreToStgExpr )
+import CoreToStg ( topCoreBindsToStg )
import StgSyn ( collectFinalStgBinders )
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, showPass )
import Util ( unJust )
+import Unique ( Uniquable(..) )
+import PrelNames ( ioTyConKey )
import UniqSupply ( mkSplitUniqSupply )
import Bag ( emptyBag )
HomeSymbolTable,
OrigNameEnv(..), PackageRuleBase, HomeIfaceTable,
typeEnvClasses, typeEnvTyCons, emptyIfaceTable )
+import Type ( splitTyConApp_maybe )
import FiniteMap ( FiniteMap, plusFM, emptyFM, addToFM )
import OccName ( OccName )
import Name ( Name, nameModule, nameOccName, getName )
import Module ( Module, lookupModuleEnvByName )
import Monad ( when )
+import Maybe ( isJust )
+import IO ( hPutStrLn, stderr )
\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 ([UnlinkedIBind],ItblEnv)) -- interpreted code, if any
+
+
-- no errors or warnings; the individual passes
-- (parse/rename/typecheck) print messages themselves
(pcs_ch, errs_found, (recomp_reqd, maybe_checked_iface))
<- checkOldIface dflags hit hst pcs
- (unJust (ml_hi_file location) "hscMain")
+ (unJust "hscMain" (ml_hi_file location))
source_unchanged maybe_old_iface;
if errs_found then
-- we definitely expect to have the old interface available
hscNoRecomp ghci_mode dflags location (Just old_iface) hst hit pcs_ch
| ghci_mode == OneShot
- = return (HscOK
- (panic "hscNoRecomp:OneShot") -- no details
- Nothing -- makes run_phase Hsc stop
- Nothing Nothing -- foreign export stuff
- Nothing -- ibinds
- pcs_ch)
+ = let bomb = panic "hscNoRecomp:OneShot"
+ in return (HscNoRecomp pcs_ch bomb bomb)
| otherwise
= do {
- hPutStrLn stderr "COMPILATION NOT REQUIRED";
- let this_mod = mi_module old_iface
+ hPutStrLn stderr "compilation not required";
;
-- CLOSURE
(pcs_cl, closure_errs, cl_hs_decls)
-- create a new details from the closed, typechecked, old iface
let new_details = mkModDetailsFromIface env_tc local_insts local_rules
;
- return (HscOK new_details
- Nothing -- tells CM to use old iface and linkables
- Nothing Nothing -- foreign export stuff
- Nothing -- ibinds
- pcs_tc)
+ return (HscNoRecomp pcs_tc new_details old_iface)
}}}}
hscRecomp ghci_mode dflags location maybe_checked_iface hst hit pcs_ch
= do {
- ; hPutStrLn stderr "COMPILATION IS REQUIRED";
+ ; 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")
+ ; 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 = mkModuleInThisPackage (hsModuleName rdr_module)
+ ; let this_mod = mkHomeModule (hsModuleName rdr_module)
-------------------
-- RENAME
-------------------
; let new_details = mkModDetails env_tc local_insts tidy_binds
top_level_ids orphan_rules
- ; final_iface <- mkFinalIface dflags location maybe_checked_iface
- new_iface new_details
+ ; final_iface <- mkFinalIface ghci_mode dflags location
+ maybe_checked_iface new_iface new_details
-------------------
-- COMPLETE CODE GENERATION
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)
+ ; return (HscRecomp pcs_tc new_details final_iface
+ maybe_stub_h_filename maybe_stub_c_filename
+ maybe_ibinds)
}}}}}}}
-mkFinalIface dflags location maybe_old_iface new_iface new_details
+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)
"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)
+ -> 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
-> String -- The expression
-> IO ( PersistentCompilerState, Maybe UnlinkedIExpr )
+#ifndef GHCI
+hscExpr dflags hst hit pcs this_module expr
+ = panic "hscExpr: non-interactive build"
+#else
+
hscExpr dflags hst hit pcs0 this_module expr
= do { -- Parse it
maybe_parsed <- hscParseExpr dflags expr;
Just (print_unqual, rn_expr) -> do {
-- Typecheck it
- maybe_tc_expr <- typecheckExpr dflags pcs1 hst print_unqual rn_expr;
- case maybe_tc_expr of
+ maybe_tc_return
+ <- typecheckExpr dflags pcs1 hst print_unqual this_module rn_expr;
+ case maybe_tc_return of
Nothing -> return (pcs1, Nothing)
- Just tc_expr -> do {
+ Just (pcs2, tc_expr, ty) -> do {
+
+ let { is_IO_type = case splitTyConApp_maybe ty of {
+ Just (tycon, _) -> getUnique tycon == ioTyConKey;
+ Nothing -> False }
+ };
+
+ if (not is_IO_type)
+ then hscExpr dflags hst hit pcs2 this_module
+ ("print (" ++ expr ++ ")")
+ else do
-- Desugar it
- ds_expr <- deSugarExpr dflags pcs1 hst this_module
+ ds_expr <- deSugarExpr dflags pcs2 hst this_module
print_unqual tc_expr;
-- Simplify it
- simpl_expr <- simplifyExpr dflags pcs1 hst ds_expr;
+ simpl_expr <- simplifyExpr dflags pcs2 hst ds_expr;
-- Convert to STG
stg_expr <- coreToStgExpr dflags simpl_expr;
-- Convert to InterpSyn
unlinked_iexpr <- stgExprToInterpSyn dflags stg_expr;
- return (pcs1, Just unlinked_iexpr);
+ return (pcs2, Just unlinked_iexpr);
}}}}
hscParseExpr :: DynFlags -> String -> IO (Maybe RdrNameHsExpr)
-- of the string...)
let glaexts = 1#
--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 SLIT("<no file>") 0 } of {
- PFailed err -> do { freeStringBuffer buf
- ; hPutStrLn stderr (showSDoc err)
- ; return Nothing };
+ PFailed err -> do { freeStringBuffer buf;
+ hPutStrLn stderr (showSDoc err);
+ return Nothing };
POk _ (PExpr rdr_expr) -> do {
- -- ToDo:
- -- freeStringBuffer buf;
-
+ --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}
%************************************************************************
projects / ghc-hetmet.git / blobdiff