import HsSyn ( emptyLHsBinds )
import HscTypes ( HscEnv(..), ModGuts(..), ModIface(..),
- TyThing, TypeEnv, emptyTypeEnv,
+ TyThing, TypeEnv, emptyTypeEnv, HscSource(..), isHsBoot,
ExternalPackageState(..), HomePackageTable,
- ModDetails(..), HomeModInfo(..),
- Deprecs(..), FixityEnv, FixItem,
+ Deprecs(..), FixityEnv, FixItem,
GhciMode, lookupType, unQualInScope )
-import Module ( Module, unitModuleEnv, foldModuleEnv )
+import Module ( Module, unitModuleEnv )
import RdrName ( GlobalRdrEnv, emptyGlobalRdrEnv,
LocalRdrEnv, emptyLocalRdrEnv )
import Name ( Name, isInternalName )
import Type ( Type )
import NameEnv ( extendNameEnvList )
-import InstEnv ( InstEnv, emptyInstEnv, extendInstEnvList )
+import InstEnv ( emptyInstEnv )
import VarSet ( emptyVarSet )
import VarEnv ( TidyEnv, emptyTidyEnv, emptyVarEnv )
\begin{code}
initTc :: HscEnv
+ -> HscSource
-> Module
-> TcM r
-> IO (Messages, Maybe r)
-- Nothing => error thrown by the thing inside
-- (error messages should have been printed already)
-initTc hsc_env mod do_this
+initTc hsc_env hsc_src mod do_this
= do { errs_var <- newIORef (emptyBag, emptyBag) ;
tvs_var <- newIORef emptyVarSet ;
type_env_var <- newIORef emptyNameEnv ;
let {
gbl_env = TcGblEnv {
tcg_mod = mod,
+ tcg_src = hsc_src,
tcg_rdr_env = emptyGlobalRdrEnv,
tcg_fix_env = emptyNameEnv,
tcg_default = Nothing,
tcg_type_env = emptyNameEnv,
tcg_type_env_var = type_env_var,
- tcg_inst_env = mkHomePackageInstEnv hsc_env,
+ tcg_inst_env = emptyInstEnv,
tcg_inst_uses = dfuns_var,
tcg_th_used = th_var,
tcg_exports = emptyNameSet,
-- list, and there are no bindings in M, we don't bleat
-- "unknown module M".
-initTcPrintErrors
+initTcPrintErrors -- Used from the interactive loop only
:: HscEnv
-> Module
-> TcM r
-> IO (Maybe r)
initTcPrintErrors env mod todo = do
- (msgs, res) <- initTc env mod todo
+ (msgs, res) <- initTc env HsSrcFile mod todo
printErrorsAndWarnings msgs
return res
-mkHomePackageInstEnv :: HscEnv -> InstEnv
--- At the moment we (wrongly) build an instance environment from all the
--- home-package modules we have already compiled.
--- We should really only get instances from modules below us in the
--- module import tree.
-mkHomePackageInstEnv (HscEnv {hsc_HPT = hpt})
- = foldModuleEnv (add . md_insts . hm_details) emptyInstEnv hpt
- where
- add dfuns inst_env = extendInstEnvList inst_env dfuns
-
-- mkImpTypeEnv makes the imported symbol table
mkImpTypeEnv :: ExternalPackageState -> HomePackageTable
-> Name -> Maybe TyThing
getModule :: TcRn Module
getModule = do { env <- getGblEnv; return (tcg_mod env) }
+tcIsHsBoot :: TcRn Bool
+tcIsHsBoot = do { env <- getGblEnv; return (isHsBoot (tcg_src env)) }
+
getGlobalRdrEnv :: TcRn GlobalRdrEnv
getGlobalRdrEnv = do { env <- getGblEnv; return (tcg_rdr_env env) }
%************************************************************************
\begin{code}
+mkIfLclEnv :: Module -> SDoc -> IfLclEnv
+mkIfLclEnv mod loc = IfLclEnv { if_mod = mod,
+ if_loc = loc,
+ if_tv_env = emptyOccEnv,
+ if_id_env = emptyOccEnv }
+
initIfaceTcRn :: IfG a -> TcRn a
initIfaceTcRn thing_inside
= do { tcg_env <- getGblEnv
- ; let { if_env = IfGblEnv {
- if_rec_types = Just (tcg_mod tcg_env, get_type_env) }
+ ; let { if_env = IfGblEnv { if_rec_types = Just (tcg_mod tcg_env, get_type_env) }
; get_type_env = readMutVar (tcg_type_env_var tcg_env) }
; setEnvs (if_env, ()) thing_inside }
initIfaceExtCore thing_inside
= do { tcg_env <- getGblEnv
; let { mod = tcg_mod tcg_env
+ ; doc = ptext SLIT("External Core file for") <+> quotes (ppr mod)
; if_env = IfGblEnv {
if_rec_types = Just (mod, return (tcg_type_env tcg_env)) }
- ; if_lenv = IfLclEnv { if_mod = mod,
- if_tv_env = emptyOccEnv,
- if_id_env = emptyOccEnv }
+ ; if_lenv = mkIfLclEnv mod doc
}
; setEnvs (if_env, if_lenv) thing_inside }
-- Used when checking the up-to-date-ness of the old Iface
-- Initialise the environment with no useful info at all
initIfaceCheck hsc_env do_this
- = do { let { gbl_env = IfGblEnv { if_rec_types = Nothing } ;
- }
+ = do { let gbl_env = IfGblEnv { if_rec_types = Nothing }
; initTcRnIf 'i' hsc_env gbl_env () do_this
}
initIfaceTc hsc_env iface do_this
= do { tc_env_var <- newIORef emptyTypeEnv
; let { gbl_env = IfGblEnv { if_rec_types = Just (mod, readMutVar tc_env_var) } ;
- ; if_lenv = IfLclEnv { if_mod = mod,
- if_tv_env = emptyOccEnv,
- if_id_env = emptyOccEnv }
+ ; if_lenv = mkIfLclEnv mod doc
}
; initTcRnIf 'i' hsc_env gbl_env if_lenv (do_this tc_env_var)
}
where
mod = mi_module iface
+ doc = ptext SLIT("The interface for") <+> quotes (ppr mod)
initIfaceRules :: HscEnv -> ModGuts -> IfG a -> IO a
-- Used when sucking in new Rules in SimplCore
; initTcRnIf 'i' hsc_env gbl_env () do_this
}
-initIfaceLcl :: Module -> IfL a -> IfM lcl a
-initIfaceLcl mod thing_inside
- = setLclEnv (IfLclEnv { if_mod = mod,
- if_tv_env = emptyOccEnv,
- if_id_env = emptyOccEnv })
- thing_inside
+initIfaceLcl :: Module -> SDoc -> IfL a -> IfM lcl a
+initIfaceLcl mod loc_doc thing_inside
+ = setLclEnv (mkIfLclEnv mod loc_doc) thing_inside
+
+getIfModule :: IfL Module
+getIfModule = do { env <- getLclEnv; return (if_mod env) }
+--------------------
+failIfM :: Message -> IfL a
+-- The Iface monad doesn't have a place to accumulate errors, so we
+-- just fall over fast if one happens; it "shouldnt happen".
+-- We use IfL here so that we can get context info out of the local env
+failIfM msg
+ = do { env <- getLclEnv
+ ; let full_msg = if_loc env $$ nest 2 msg
+ ; ioToIOEnv (printErrs (full_msg defaultErrStyle))
+ ; failM }
--------------------
forkM_maybe :: SDoc -> IfL a -> IfL (Maybe a)
projects / ghc-hetmet.git / blobdiff