\begin{code}
module HscMain (
- HscResult(..), hscMain, newHscEnv
+ HscResult(..),
+ hscMain, newHscEnv, hscCmmFile,
+ hscBufferCheck, hscFileCheck,
#ifdef GHCI
- , hscStmt, hscTcExpr, hscThing,
+ , hscStmt, hscTcExpr, hscKcType
+ , hscGetInfo, GetInfoResult
, compileExpr
#endif
) where
#include "HsVersions.h"
#ifdef GHCI
-import HsSyn ( Stmt(..) )
-import TcHsSyn ( TypecheckedHsExpr )
-import IfaceSyn ( IfaceDecl )
+import HsSyn ( Stmt(..), LStmt, LHsExpr, LHsType )
+import IfaceSyn ( IfaceDecl, IfaceInst )
+import Module ( Module )
import CodeOutput ( outputForeignStubs )
import ByteCodeGen ( byteCodeGen, coreExprToBCOs )
import Linker ( HValue, linkExpr )
import TidyPgm ( tidyCoreExpr )
import CorePrep ( corePrepExpr )
import Flattening ( flattenExpr )
-import TcRnDriver ( tcRnStmt, tcRnExpr, tcRnThing )
-import RdrHsSyn ( RdrNameStmt )
-import RdrName ( GlobalRdrEnv )
+import TcRnDriver ( tcRnStmt, tcRnExpr, tcRnGetInfo, tcRnType )
+import RdrName ( rdrNameOcc )
+import OccName ( occNameUserString )
import Type ( Type )
import PrelNames ( iNTERACTIVE )
import StringBuffer ( stringToStringBuffer )
-import SrcLoc ( noSrcLoc )
-import Name ( Name )
+import Kind ( Kind )
+import Var ( Id )
import CoreLint ( lintUnfolding )
import DsMeta ( templateHaskellNames )
import BasicTypes ( Fixity )
+import SrcLoc ( SrcLoc, noSrcLoc )
#endif
+import RdrName ( RdrName )
+import HsSyn ( HsModule )
+import SrcLoc ( Located(..) )
import StringBuffer ( hGetStringBuffer )
import Parser
-import Lexer ( P(..), ParseResult(..), mkPState, showPFailed )
+import Lexer ( P(..), ParseResult(..), mkPState )
import SrcLoc ( mkSrcLoc )
import TcRnDriver ( tcRnModule, tcRnExtCore )
+import TcRnTypes ( TcGblEnv )
import TcIface ( typecheckIface )
import IfaceEnv ( initNameCache )
import LoadIface ( ifaceStats, initExternalPackageState )
import Name ( Name, NamedThing(..) )
import SimplStg ( stg2stg )
import CodeGen ( codeGen )
+import CmmParse ( parseCmmFile )
import CodeOutput ( codeOutput )
import CmdLineOpts
-import DriverPhases ( isExtCore_file )
-import ErrUtils ( dumpIfSet, dumpIfSet_dyn, showPass )
+import DriverPhases ( HscSource(..) )
+import ErrUtils
import UniqSupply ( mkSplitUniqSupply )
import Outputable
import MkExternalCore ( emitExternalCore )
import ParserCore
import ParserCoreUtils
-import Module ( Module, ModLocation(..), showModMsg )
import FastString
import Maybes ( expectJust )
+import StringBuffer ( StringBuffer )
+import Bag ( unitBag, emptyBag )
import Monad ( when )
-import Maybe ( isJust, fromJust )
+import Maybe ( isJust )
import IO
import DATA_IOREF ( newIORef, readIORef )
\end{code}
\begin{code}
data HscResult
-- Compilation failed
- = HscFail
+ = HscFail
+
+ -- In IDE mode: we just do the static/dynamic checks
+ | HscChecked (Located (HsModule RdrName)) (Maybe TcGblEnv)
-- Concluded that it wasn't necessary
| HscNoRecomp ModDetails -- new details (HomeSymbolTable additions)
Bool -- stub_c exists
(Maybe CompiledByteCode)
+
+-- 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
- -> Module
- -> ModLocation -- location info
- -> Bool -- True <=> source unchanged
- -> Bool -- True <=> have an object file (for msgs only)
- -> Maybe ModIface -- old interface, if available
+ -> 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
-> IO HscResult
-hscMain hsc_env mod location
+hscMain hsc_env msg_act mod_summary
source_unchanged have_object maybe_old_iface
= do {
(recomp_reqd, maybe_checked_iface) <-
_scc_ "checkOldIface"
- checkOldIface hsc_env mod
- (ml_hi_file location)
+ 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 have_object
- mod location maybe_checked_iface
+ ; what_next hsc_env msg_act mod_summary have_object
+ maybe_checked_iface
}
+------------------------------
-- hscNoRecomp definitely expects to have the old interface available
-hscNoRecomp hsc_env have_object
- mod location (Just old_iface)
- | hsc_mode hsc_env == OneShot
+hscNoRecomp hsc_env msg_act mod_summary
+ have_object (Just old_iface)
+ | isOneShot (hsc_mode hsc_env)
= do {
- when (verbosity (hsc_dflags hsc_env) > 0) $
- hPutStrLn stderr "compilation IS NOT required";
+ compilationProgressMsg (hsc_dflags hsc_env) $
+ "compilation IS NOT required";
dumpIfaceStats hsc_env ;
let { bomb = panic "hscNoRecomp:OneShot" };
return (HscNoRecomp bomb bomb)
}
| otherwise
- = do {
- when (verbosity (hsc_dflags hsc_env) >= 1) $
- hPutStrLn stderr ("Skipping " ++
- showModMsg have_object mod location);
+ = do { compilationProgressMsg (hsc_dflags hsc_env) $
+ ("Skipping " ++ showModMsg have_object mod_summary)
- new_details <- _scc_ "tcRnIface"
+ ; new_details <- _scc_ "tcRnIface"
typecheckIface hsc_env old_iface ;
- dumpIfaceStats hsc_env ;
+ ; dumpIfaceStats hsc_env
- return (HscNoRecomp new_details old_iface)
- }
+ ; return (HscNoRecomp new_details old_iface)
+ }
-hscRecomp hsc_env have_object
- mod location maybe_checked_iface
- = do {
- -- what target are we shooting for?
- ; let one_shot = hsc_mode hsc_env == OneShot
- ; let dflags = hsc_dflags hsc_env
- ; let toInterp = dopt_HscLang dflags == HscInterpreted
- ; let toCore = isJust (ml_hs_file location) &&
- isExtCore_file (fromJust (ml_hs_file location))
+------------------------------
+hscRecomp hsc_env msg_act mod_summary
+ have_object maybe_checked_iface
+ = case ms_hsc_src mod_summary of
+ HsSrcFile -> do { front_res <- hscFileFrontEnd hsc_env msg_act mod_summary
+ ; hscBackEnd hsc_env mod_summary maybe_checked_iface front_res }
+
+ HsBootFile -> do { front_res <- hscFileFrontEnd hsc_env msg_act mod_summary
+ ; hscBootBackEnd hsc_env mod_summary maybe_checked_iface front_res }
- ; when (not one_shot && verbosity dflags >= 1) $
- hPutStrLn stderr ("Compiling " ++
- showModMsg (not toInterp) mod location);
+ ExtCoreFile -> do { front_res <- hscCoreFrontEnd hsc_env msg_act mod_summary
+ ; hscBackEnd hsc_env mod_summary maybe_checked_iface front_res }
+
+hscCoreFrontEnd hsc_env msg_act mod_summary = do {
+ -------------------
+ -- PARSE
+ -------------------
+ ; inp <- readFile (expectJust "hscCoreFrontEnd" (ms_hspp_file mod_summary))
+ ; case parseCore inp 1 of
+ FailP s -> putMsg s{-ToDo: wrong-} >> return Nothing
+ OkP rdr_module -> do {
+
+ -------------------
+ -- RENAME and TYPECHECK
+ -------------------
+ ; (tc_msgs, maybe_tc_result) <- _scc_ "TypeCheck"
+ tcRnExtCore hsc_env rdr_module
+ ; msg_act 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 = do {
+ -------------------
+ -- DISPLAY PROGRESS MESSAGE
+ -------------------
+ let one_shot = isOneShot (hsc_mode hsc_env)
+ ; let dflags = hsc_dflags hsc_env
+ ; let toInterp = dopt_HscTarget dflags == HscInterpreted
+ ; when (not one_shot) $
+ compilationProgressMsg dflags $
+ ("Compiling " ++ showModMsg (not toInterp) mod_summary)
- ; front_res <- if toCore then
- hscCoreFrontEnd hsc_env location
- else
- hscFrontEnd hsc_env location
+ -------------------
+ -- 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 Nothing } ;
+ Right rdr_module -> do {
+
+ -------------------
+ -- RENAME and TYPECHECK
+ -------------------
+ (tc_msgs, maybe_tc_result)
+ <- _scc_ "Typecheck-Rename"
+ tcRnModule hsc_env (ms_hsc_src mod_summary) rdr_module
+
+ ; msg_act tc_msgs
+ ; case maybe_tc_result of {
+ Nothing -> return Nothing ;
+ Just tc_result -> do {
+
+ -------------------
+ -- DESUGAR
+ -------------------
+ ; (warns, maybe_ds_result) <- _scc_ "DeSugar"
+ deSugar hsc_env tc_result
+ ; msg_act (warns, emptyBag)
+ ; case maybe_ds_result of
+ Nothing -> return Nothing
+ Just ds_result -> return (Just ds_result)
+ }}}}}
+
+------------------------------
+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_checked_iface Nothing
+ = return HscFail
+hscBootBackEnd hsc_env mod_summary maybe_checked_iface (Just ds_result)
+ = do { final_iface <- _scc_ "MkFinalIface"
+ mkIface hsc_env (ms_location mod_summary)
+ maybe_checked_iface ds_result
+
+ ; let { final_globals = Just $! (mg_rdr_env ds_result)
+ ; final_details = ModDetails { md_types = mg_types ds_result,
+ md_insts = mg_insts ds_result,
+ md_rules = mg_rules ds_result } }
+ -- And the answer is ...
+ ; dumpIfaceStats hsc_env
- ; case front_res of
- Left flure -> return flure;
- Right ds_result -> do {
+ ; return (HscRecomp final_details
+ final_globals
+ final_iface
+ False False Nothing)
+ }
+------------------------------
+hscBackEnd :: HscEnv -> ModSummary -> Maybe ModIface -> Maybe ModGuts -> IO HscResult
- -- OMITTED:
- -- ; seqList imported_modules (return ())
+hscBackEnd hsc_env mod_summary maybe_checked_iface Nothing
+ = return HscFail
+
+hscBackEnd hsc_env mod_summary maybe_checked_iface (Just ds_result)
+ = do { -- OMITTED:
+ -- ; seqList imported_modules (return ())
+
+ let one_shot = isOneShot (hsc_mode hsc_env)
+ dflags = hsc_dflags hsc_env
-------------------
-- FLATTENING
-- info has been set. Not yet clear if it matters waiting
-- until after code output
; new_iface <- _scc_ "MkFinalIface"
- mkIface hsc_env location
+ mkIface hsc_env (ms_location mod_summary)
maybe_checked_iface tidy_result
-
-- Space leak reduction: throw away the new interface if
-- we're in one-shot mode; we won't be needing it any
-- more.
-------------------
-- CONVERT TO STG and COMPLETE CODE GENERATION
; (stub_h_exists, stub_c_exists, maybe_bcos)
- <- hscBackEnd dflags tidy_result
+ <- hscCodeGen dflags tidy_result
-- And the answer is ...
; dumpIfaceStats hsc_env
final_iface
stub_h_exists stub_c_exists
maybe_bcos)
- }}
+ }
-hscCoreFrontEnd hsc_env location = do {
- -------------------
- -- PARSE
- -------------------
- ; inp <- readFile (expectJust "hscCoreFrontEnd:hspp" (ml_hspp_file location))
- ; case parseCore inp 1 of
- FailP s -> hPutStrLn stderr s >> return (Left HscFail);
- OkP rdr_module -> do {
-
- -------------------
- -- RENAME and TYPECHECK
- -------------------
- ; maybe_tc_result <- _scc_ "TypeCheck"
- tcRnExtCore hsc_env rdr_module
- ; case maybe_tc_result of {
- Nothing -> return (Left HscFail);
- Just mod_guts -> return (Right mod_guts)
- -- No desugaring to do!
- }}}
-
-hscFrontEnd hsc_env location = do {
+hscFileCheck hsc_env msg_act hspp_file = do {
-------------------
-- PARSE
-------------------
- ; maybe_parsed <- myParseModule (hsc_dflags hsc_env)
- (expectJust "hscFrontEnd:hspp" (ml_hspp_file location))
+ ; maybe_parsed <- myParseModule (hsc_dflags hsc_env) hspp_file Nothing
; case maybe_parsed of {
- Nothing -> return (Left HscFail);
- Just rdr_module -> do {
-
- -------------------
- -- RENAME and TYPECHECK
- -------------------
- ; maybe_tc_result <- _scc_ "Typecheck-Rename"
- tcRnModule hsc_env rdr_module
- ; case maybe_tc_result of {
- Nothing -> return (Left HscFail);
- Just tc_result -> do {
-
- -------------------
- -- DESUGAR
- -------------------
- ; maybe_ds_result <- _scc_ "DeSugar"
- deSugar hsc_env tc_result
- ; case maybe_ds_result of
- Nothing -> return (Left HscFail);
- Just ds_result -> return (Right ds_result);
- }}}}}
-
-
-hscBackEnd dflags
+ Left err -> do { msg_act (unitBag err, emptyBag) ;
+ ; return HscFail ;
+ };
+ Right rdr_module -> hscBufferTypecheck hsc_env rdr_module msg_act
+ }}
+
+
+-- Perform static/dynamic checks on the source code in a StringBuffer
+-- This is a temporary solution: it'll read in interface files lazily, whereas
+-- we probably want to use the compilation manager to load in all the modules
+-- in a project.
+hscBufferCheck :: HscEnv -> StringBuffer -> MessageAction -> IO HscResult
+hscBufferCheck hsc_env buffer msg_act = do
+ let loc = mkSrcLoc (mkFastString "*edit*") 1 0
+ showPass (hsc_dflags hsc_env) "Parser"
+ case unP parseModule (mkPState buffer loc (hsc_dflags hsc_env)) of
+ PFailed span err -> do
+ msg_act (emptyBag, unitBag (mkPlainErrMsg span err))
+ return HscFail
+ POk _ rdr_module -> do
+ hscBufferTypecheck hsc_env rdr_module msg_act
+
+hscBufferTypecheck hsc_env rdr_module msg_act = do
+ (tc_msgs, maybe_tc_result) <- _scc_ "Typecheck-Rename"
+ tcRnModule hsc_env HsSrcFile rdr_module
+ msg_act tc_msgs
+ case maybe_tc_result of
+ Nothing -> return (HscChecked rdr_module Nothing)
+ -- space leak on rdr_module!
+ Just r -> return (HscChecked rdr_module (Just r))
+
+
+hscCodeGen dflags
ModGuts{ -- This is the last use of the ModGuts in a compilation.
-- From now on, we just use the bits we need.
mg_module = this_mod,
prepd_binds <- _scc_ "CorePrep"
corePrepPgm dflags core_binds type_env;
- case dopt_HscLang dflags of
+ case dopt_HscTarget dflags of
HscNothing -> return (False, False, Nothing)
HscInterpreted ->
}
-myParseModule dflags src_filename
+hscCmmFile :: DynFlags -> FilePath -> IO Bool
+hscCmmFile dflags filename = do
+ maybe_cmm <- parseCmmFile dflags filename
+ case maybe_cmm of
+ Nothing -> return False
+ Just cmm -> do
+ codeOutput dflags no_mod NoStubs noDependencies [cmm]
+ return True
+ where
+ no_mod = panic "hscCmmFile: no_mod"
+
+
+myParseModule dflags src_filename maybe_src_buf
= do -------------------------- Parser ----------------
showPass dflags "Parser"
_scc_ "Parser" do
- buf <- hGetStringBuffer src_filename
+
+ -- sometimes we already have the buffer in memory, perhaps
+ -- because we needed to parse the imports out of it, or get the
+ -- module name.
+ buf <- case maybe_src_buf of
+ Just b -> return b
+ Nothing -> hGetStringBuffer src_filename
let loc = mkSrcLoc (mkFastString src_filename) 1 0
case unP parseModule (mkPState buf loc dflags) of {
- PFailed l1 l2 err -> do { hPutStrLn stderr (showSDoc (showPFailed l1 l2 err));
- return Nothing };
+ PFailed span err -> return (Left (mkPlainErrMsg span err));
POk _ rdr_module -> do {
dumpIfSet_dyn dflags Opt_D_source_stats "Source Statistics"
(ppSourceStats False rdr_module) ;
- return (Just rdr_module)
+ return (Right rdr_module)
-- ToDo: free the string buffer later.
}}
hscStmt hsc_env icontext stmt
= do { maybe_stmt <- hscParseStmt (hsc_dflags hsc_env) stmt
; case maybe_stmt of {
- Nothing -> return Nothing ;
- Just parsed_stmt -> do {
+ Nothing -> return Nothing ; -- Parse error
+ Just Nothing -> return Nothing ; -- Empty line
+ Just (Just parsed_stmt) -> do { -- The real stuff
-- Rename and typecheck it
maybe_tc_result
hscTcExpr hsc_env icontext expr
= do { maybe_stmt <- hscParseStmt (hsc_dflags hsc_env) expr
; case maybe_stmt of {
- Just (ExprStmt expr _ _)
+ Nothing -> return Nothing ; -- Parse error
+ Just (Just (L _ (ExprStmt expr _)))
-> tcRnExpr hsc_env icontext expr ;
- Just other -> do { hPutStrLn stderr ("not an expression: `" ++ expr ++ "'") ;
+ Just other -> do { errorMsg ("not an expression: `" ++ expr ++ "'") ;
+ return Nothing } ;
+ } }
+
+hscKcType -- Find the kind of a type
+ :: HscEnv
+ -> InteractiveContext -- Context for compiling
+ -> String -- The type
+ -> IO (Maybe Kind)
+
+hscKcType hsc_env icontext str
+ = do { maybe_type <- hscParseType (hsc_dflags hsc_env) str
+ ; case maybe_type of {
+ Just ty -> tcRnType hsc_env icontext ty ;
+ Just other -> do { errorMsg ("not an type: `" ++ str ++ "'") ;
return Nothing } ;
Nothing -> return Nothing } }
\end{code}
\begin{code}
-hscParseStmt :: DynFlags -> String -> IO (Maybe RdrNameStmt)
-hscParseStmt dflags str
+hscParseStmt :: DynFlags -> String -> IO (Maybe (Maybe (LStmt RdrName)))
+hscParseStmt = hscParseThing parseStmt
+
+hscParseType :: DynFlags -> String -> IO (Maybe (LHsType RdrName))
+hscParseType = hscParseThing parseType
+
+hscParseIdentifier :: DynFlags -> String -> IO (Maybe (Located RdrName))
+hscParseIdentifier = hscParseThing parseIdentifier
+
+hscParseThing :: Outputable thing
+ => Lexer.P thing
+ -> DynFlags -> String
+ -> IO (Maybe thing)
+ -- Nothing => Parse error (message already printed)
+ -- Just x => success
+hscParseThing parser dflags str
= do showPass dflags "Parser"
_scc_ "Parser" do
let loc = mkSrcLoc FSLIT("<interactive>") 1 0
- case unP parseStmt (mkPState buf loc dflags) of {
+ case unP parser (mkPState buf loc dflags) of {
- PFailed l1 l2 err -> do { hPutStrLn stderr (showSDoc (showPFailed l1 l2 err));
- return Nothing };
+ PFailed span err -> do { printError span err;
+ return Nothing };
- -- no stmt: the line consisted of just space or comments
- POk _ Nothing -> return Nothing;
-
- POk _ (Just rdr_stmt) -> do {
+ POk _ thing -> do {
--ToDo: can't free the string buffer until we've finished this
-- compilation sweep and all the identifiers have gone away.
- dumpIfSet_dyn dflags Opt_D_dump_parsed "Parser" (ppr rdr_stmt);
- return (Just rdr_stmt)
+ dumpIfSet_dyn dflags Opt_D_dump_parsed "Parser" (ppr thing);
+ return (Just thing)
}}
#endif
\end{code}
\begin{code}
#ifdef GHCI
-hscThing -- like hscStmt, but deals with a single identifier
+type GetInfoResult = (String, (IfaceDecl, Fixity, SrcLoc, [(IfaceInst,SrcLoc)]))
+
+hscGetInfo -- like hscStmt, but deals with a single identifier
:: HscEnv
-> InteractiveContext -- Context for compiling
-> String -- The identifier
- -> IO [(IfaceDecl, Fixity)]
+ -> IO [GetInfoResult]
-hscThing hsc_env ic str
- = do maybe_rdr_name <- myParseIdentifier (hsc_dflags hsc_env) str
+hscGetInfo hsc_env ic str
+ = do maybe_rdr_name <- hscParseIdentifier (hsc_dflags hsc_env) str
case maybe_rdr_name of {
Nothing -> return [];
- Just rdr_name -> do
+ Just (L _ rdr_name) -> do
+
+ maybe_tc_result <- tcRnGetInfo hsc_env ic rdr_name
- maybe_tc_result <- tcRnThing hsc_env ic rdr_name
+ let -- str' is the the naked occurrence name
+ -- after stripping off qualification and parens (+)
+ str' = occNameUserString (rdrNameOcc rdr_name)
case maybe_tc_result of {
Nothing -> return [] ;
- Just things -> return things
+ Just things -> return [(str', t) | t <- things]
}}
-
-myParseIdentifier dflags str
- = do buf <- stringToStringBuffer str
-
- let loc = mkSrcLoc FSLIT("<interactive>") 1 0
- case unP parseIdentifier (mkPState buf loc dflags) of
-
- PFailed l1 l2 err -> do { hPutStrLn stderr (showSDoc (showPFailed l1 l2 err));
- return Nothing }
-
- POk _ rdr_name -> return (Just rdr_name)
#endif
\end{code}
#ifdef GHCI
compileExpr :: HscEnv
-> Module -> GlobalRdrEnv -> TypeEnv
- -> TypecheckedHsExpr
+ -> LHsExpr Id
-> IO HValue
compileExpr hsc_env this_mod rdr_env type_env tc_expr
projects / ghc-hetmet.git / blobdiff