import HscTypes
import DynFlags
import Config
+import SysTools
import ErrUtils ( dumpIfSet_dyn, showPass, ghcExit )
import Outputable
-> ForeignStubs
-> [PackageId]
-> [RawCmm] -- Compiled C--
- -> IO (Bool{-stub_h_exists-}, Bool{-stub_c_exists-})
+ -> IO (Bool{-stub_h_exists-}, Maybe FilePath{-stub_c_exists-})
codeOutput dflags this_mod location foreign_stubs pkg_deps flat_abstractC
=
\begin{code}
outputForeignStubs :: DynFlags -> Module -> ModLocation -> ForeignStubs
-> IO (Bool, -- Header file created
- Bool) -- C file created
+ Maybe FilePath) -- C file created
outputForeignStubs dflags mod location stubs
- = case stubs of
- NoStubs -> do
+ = do
+ let stub_h = mkStubPaths dflags (moduleName mod) location
+ stub_c <- newTempName dflags "c"
+
+ case stubs of
+ NoStubs -> do
-- When compiling External Core files, may need to use stub
-- files from a previous compilation
- stub_c_exists <- doesFileExist stub_c
- stub_h_exists <- doesFileExist stub_h
- return (stub_h_exists, stub_c_exists)
+ stub_h_exists <- doesFileExist stub_h
+ return (stub_h_exists, Nothing)
- ForeignStubs h_code c_code -> do
- let
+ ForeignStubs h_code c_code -> do
+ let
stub_c_output_d = pprCode CStyle c_code
stub_c_output_w = showSDoc stub_c_output_d
stub_h_output_w = showSDoc stub_h_output_d
-- in
- createDirectoryHierarchy (takeDirectory stub_c)
+ createDirectoryHierarchy (takeDirectory stub_h)
dumpIfSet_dyn dflags Opt_D_dump_foreign
"Foreign export header file" stub_h_output_d
-- isn't really HC code, so we need to define IN_STG_CODE==0 to
-- avoid the register variables etc. being enabled.
- return (stub_h_file_exists, stub_c_file_exists)
- where
- (stub_c, stub_h, _) = mkStubPaths dflags (moduleName mod) location
-
+ return (stub_h_file_exists, if stub_c_file_exists
+ then Just stub_c
+ else Nothing )
+ where
cplusplus_hdr = "#ifdef __cplusplus\nextern \"C\" {\n#endif\n"
cplusplus_ftr = "#ifdef __cplusplus\n}\n#endif\n"