\begin{code}
module HscMain (
- HscResult(..), HscCheckResult(..) ,
- hscMain, newHscEnv, hscCmmFile, hscBufferFrontEnd
+ HscResult(..),
+ hscMain, newHscEnv, hscCmmFile,
+ hscBufferCheck, hscFileCheck,
#ifdef GHCI
, hscStmt, hscTcExpr, hscKcType
, hscGetInfo, GetInfoResult
#ifdef GHCI
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 CoreLint ( lintUnfolding )
import DsMeta ( templateHaskellNames )
import BasicTypes ( Fixity )
+import SrcLoc ( SrcLoc, noSrcLoc )
#endif
import RdrName ( RdrName )
import HsSyn ( HsModule )
-import SrcLoc ( SrcLoc, noSrcLoc, Located(..) )
+import SrcLoc ( Located(..) )
import StringBuffer ( hGetStringBuffer )
import Parser
import Lexer ( P(..), ParseResult(..), mkPState )
import CodeOutput ( codeOutput )
import CmdLineOpts
-import DriverPhases ( isExtCoreFilename )
+import DriverPhases ( HscSource(..) )
import ErrUtils
import UniqSupply ( mkSplitUniqSupply )
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}
= HscFail
-- In IDE mode: we just do the static/dynamic checks
- | HscChecked HscCheckResult
+ | HscChecked (Located (HsModule RdrName)) (Maybe TcGblEnv)
-- Concluded that it wasn't necessary
| HscNoRecomp ModDetails -- new details (HomeSymbolTable additions)
(Maybe CompiledByteCode)
--- The result when we're just checking (in an IDE editor, for example)
-data HscCheckResult
- = HscParsed (Located (HsModule RdrName))
- -- renaming/typechecking failed, here's the parse tree
- | HscTypechecked TcGblEnv
- -- renaming/typechecking succeeded
-
-- What to do when we have compiler error or warning messages
type MessageAction = Messages -> IO ()
hscMain
:: HscEnv
- -> MessageAction -- what to do with errors/warnings
- -> 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 msg_act 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 msg_act 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 msg_act have_object
- mod location (Just old_iface)
+hscNoRecomp hsc_env msg_act mod_summary
+ have_object (Just old_iface)
| isOneShot (hsc_mode hsc_env)
= do {
compilationProgressMsg (hsc_dflags hsc_env) $
return (HscNoRecomp bomb bomb)
}
| otherwise
- = do {
- compilationProgressMsg (hsc_dflags hsc_env) $
- ("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 msg_act have_object
- mod location maybe_checked_iface
- = do {
- -- what target are we shooting for?
- ; let one_shot = isOneShot (hsc_mode hsc_env)
- ; let dflags = hsc_dflags hsc_env
- ; let toInterp = dopt_HscLang dflags == HscInterpreted
- ; let toCore = isJust (ml_hs_file location) &&
- isExtCoreFilename (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 }
+
+ 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 location);
+ compilationProgressMsg dflags $
+ ("Compiling " ++ showModMsg (not toInterp) mod_summary)
- ; front_res <- if toCore then
- hscCoreFrontEnd hsc_env msg_act location
- else
- hscFileFrontEnd hsc_env msg_act location
+ -------------------
+ -- PARSE
+ -------------------
+ ; let hspp_file = expectJust "hscFileFrontEnd" (ms_hspp_file mod_summary)
+ hspp_buf = ms_hspp_buf mod_summary
- ; case front_res of
- Left flure -> return flure;
- Right ds_result -> do {
+ ; 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
- -- OMITTED:
- -- ; seqList imported_modules (return ())
+ ; 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
+
+ ; return (HscRecomp final_details
+ final_globals
+ final_iface
+ False False Nothing)
+ }
+
+------------------------------
+hscBackEnd :: HscEnv -> ModSummary -> Maybe ModIface -> Maybe ModGuts -> IO HscResult
+
+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 msg_act location = do {
- -------------------
- -- PARSE
- -------------------
- ; inp <- readFile (expectJust "hscCoreFrontEnd:hspp" (ml_hspp_file location))
- ; case parseCore inp 1 of
- FailP s -> putMsg s{-ToDo: wrong-} >> return (Left HscFail)
- 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 (Left HscFail);
- Just mod_guts -> return (Right mod_guts)
- -- No desugaring to do!
- }}}
-
-hscFileFrontEnd hsc_env msg_act 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 {
Left err -> do { msg_act (unitBag err, emptyBag) ;
- ; return (Left HscFail) ;
+ ; return HscFail ;
};
- Right rdr_module -> hscFrontEnd hsc_env msg_act rdr_module
- }}
+ 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.
-hscBufferFrontEnd :: HscEnv -> StringBuffer -> MessageAction -> IO HscResult
-hscBufferFrontEnd hsc_env buffer msg_act = do
+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
hscBufferTypecheck hsc_env rdr_module msg_act = do
(tc_msgs, maybe_tc_result) <- _scc_ "Typecheck-Rename"
- tcRnModule hsc_env rdr_module
+ tcRnModule hsc_env HsSrcFile rdr_module
msg_act tc_msgs
case maybe_tc_result of
- Nothing -> return (HscChecked (HscParsed rdr_module))
+ Nothing -> return (HscChecked rdr_module Nothing)
-- space leak on rdr_module!
- Just r -> return (HscChecked (HscTypechecked r))
-
-
-hscFrontEnd hsc_env msg_act rdr_module = do {
- -------------------
- -- RENAME and TYPECHECK
- -------------------
- ; (tc_msgs, maybe_tc_result) <- _scc_ "Typecheck-Rename"
- tcRnModule hsc_env rdr_module
- ; msg_act tc_msgs
- ; case maybe_tc_result of {
- Nothing -> return (Left HscFail);
- Just tc_result -> do {
+ Just r -> return (HscChecked rdr_module (Just r))
- -------------------
- -- DESUGAR
- -------------------
- ; (warns, maybe_ds_result) <- _scc_ "DeSugar"
- deSugar hsc_env tc_result
- ; msg_act (warns, emptyBag)
- ; case maybe_ds_result of
- Nothing -> return (Left HscFail);
- Just ds_result -> return (Right ds_result);
- }}}
-hscBackEnd dflags
+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 ->
no_mod = panic "hscCmmFile: no_mod"
-myParseModule dflags src_filename
+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
projects / ghc-hetmet.git / blobdiff