import HsSyn ( HsModule(..), HsDecl(..), IE(..), ieName, ImportDecl(..),
ForeignDecl(..), ForKind(..), isDynamicExtName,
- collectTopBinders
+ collectLocatedHsBinders
)
import RdrHsSyn ( RdrNameIE, RdrNameImportDecl,
RdrNameHsModule, RdrNameHsDecl
)
-import RnIfaces ( getInterfaceExports, recordLocalSlurps )
-import RnHiFiles ( getTyClDeclBinders )
+import RnIfaces ( recordLocalSlurps )
+import RnHiFiles ( getTyClDeclBinders, loadInterface )
import RnEnv
import RnMonad
import NameSet
import Name ( Name, nameSrcLoc, nameOccName, nameEnvElts )
import HscTypes ( Provenance(..), ImportReason(..), GlobalRdrEnv,
- GenAvailInfo(..), AvailInfo, Avails, AvailEnv )
-import RdrName ( RdrName, rdrNameOcc, setRdrNameOcc )
+ GenAvailInfo(..), AvailInfo, Avails, AvailEnv,
+ Deprecations(..), ModIface(..)
+ )
+import RdrName ( rdrNameOcc, setRdrNameOcc )
import OccName ( setOccNameSpace, dataName )
import NameSet ( elemNameSet, emptyNameSet )
import Outputable
importsFromImportDecl this_mod_name (ImportDecl imp_mod_name from qual_only as_mod import_spec iloc)
= pushSrcLocRn iloc $
- getInterfaceExports imp_mod_name from `thenRn` \ (imp_mod, avails_by_module) ->
-
- if null avails_by_module then
- -- If there's an error in getInterfaceExports, (e.g. interface
- -- file not found) we get lots of spurious errors from 'filterImports'
- returnRn (emptyRdrEnv, mkEmptyExportAvails imp_mod_name)
- else
+ loadInterface (ppr imp_mod_name <+> ptext SLIT("is directly imported"))
+ imp_mod_name from `thenRn` \ iface ->
let
+ imp_mod = mi_module iface
+ avails_by_module = mi_exports iface
+ deprecs = mi_deprecs iface
+
avails :: Avails
avails = [ avail | (mod_name, avails) <- avails_by_module,
mod_name /= this_mod_name,
-- then you'll get a 'B does not export AType' message. Oh well.
in
+ if null avails_by_module then
+ -- If there's an error in loadInterface, (e.g. interface
+ -- file not found) we get lots of spurious errors from 'filterImports'
+ returnRn (emptyRdrEnv, mkEmptyExportAvails imp_mod_name)
+ else
+
+ -- Complain if we import a deprecated module
+ (case deprecs of
+ DeprecAll txt -> addWarnRn (moduleDeprec imp_mod_name txt)
+ other -> returnRn ()
+ ) `thenRn_`
+
+ -- Filter the imports according to the import list
filterImports imp_mod_name from import_spec avails `thenRn` \ (filtered_avails, hides, explicits) ->
let
Just another_name -> another_name
mk_prov name = NonLocalDef (UserImport imp_mod iloc (name `elemNameSet` explicits))
- gbl_env = mkGlobalRdrEnv qual_mod unqual_imp hides mk_prov filtered_avails
- exports = mkExportAvails qual_mod unqual_imp gbl_env filtered_avails
+ gbl_env = mkGlobalRdrEnv qual_mod unqual_imp True hides mk_prov filtered_avails deprecs
+ exports = mkExportAvails qual_mod unqual_imp gbl_env filtered_avails
in
returnRn (gbl_env, exports)
\end{code}
\begin{code}
importsFromLocalDecls this_mod decls
= mapRn (getLocalDeclBinders this_mod) decls `thenRn` \ avails_s ->
-
+ -- The avails that are returned don't include the "system" names
let
avails = concat avails_s
-- Check for duplicate definitions
mapRn_ (addErrRn . dupDeclErr) dups `thenRn_`
+
-- Record that locally-defined things are available
recordLocalSlurps (availsToNameSet avails) `thenRn_`
-
let
mod_name = moduleName this_mod
unqual_imp = True -- Want unqualified names
mk_prov n = LocalDef -- Provenance is local
hides = [] -- Hide nothing
- gbl_env = mkGlobalRdrEnv mod_name unqual_imp hides mk_prov avails
- exports = mkExportAvails mod_name unqual_imp gbl_env avails
+
+ gbl_env = mkGlobalRdrEnv mod_name unqual_imp True hides mk_prov avails NoDeprecs
+ -- NoDeprecs: don't complain about locally defined names
+ -- For a start, we may be exporting a deprecated thing
+ -- Also we may use a deprecated thing in the defn of another
+ -- deprecated things. We may even use a deprecated thing in
+ -- the defn of a non-deprecated thing, when changing a module's
+ -- interface
+
+ exports = mkExportAvails mod_name unqual_imp gbl_env avails
in
returnRn (gbl_env, exports)
---------------------------
-getLocalDeclBinders :: Module
- -> RdrNameHsDecl -> RnMG Avails
+getLocalDeclBinders :: Module -> RdrNameHsDecl -> RnMG [AvailInfo]
getLocalDeclBinders mod (TyClD tycl_decl)
= -- For type and class decls, we generate Global names, with
-- no export indicator. They need to be global because they get
-- permanently bound into the TyCons and Classes. They don't need
-- an export indicator because they are all implicitly exported.
- getTyClDeclBinders mod tycl_decl `thenRn` \ avail ->
+ getTyClDeclBinders mod tycl_decl `thenRn` \ (avail, sys_names) ->
+
+ -- Record that the system names are available
+ recordLocalSlurps (mkNameSet sys_names) `thenRn_`
returnRn [avail]
getLocalDeclBinders mod (ValD binds)
- = mapRn new (bagToList (collectTopBinders binds))
+ = mapRn new (collectLocatedHsBinders binds) `thenRn` \ avails ->
+ returnRn avails
where
new (rdr_name, loc) = newTopBinder mod rdr_name loc `thenRn` \ name ->
returnRn (Avail name)
= hsep [ptext SLIT("Duplicate"),
quotes (ptext SLIT("Module") <+> ppr mod),
ptext SLIT("in export list")]
+
+moduleDeprec mod txt
+ = sep [ ptext SLIT("Module") <+> quotes (ppr mod) <+> ptext SLIT("is deprecated:"),
+ nest 4 (ppr txt) ]
\end{code}
projects / ghc-hetmet.git / blobdiff