-{-# OPTIONS -w #-}
+{-# OPTIONS -fno-warn-incomplete-patterns #-}
-- The above warning supression flag is a temporary kludge.
-- While working on this module you are encouraged to remove it and fix
-- any warnings in the module. See
import HsSyn ( ImportDecl(..), HsModule(..) )
import Module ( ModuleName, moduleName )
import PrelNames ( gHC_PRIM, mAIN_NAME )
-import StringBuffer ( StringBuffer(..), hGetStringBuffer, hGetStringBufferBlock
+import StringBuffer ( StringBuffer(..), hGetStringBufferBlock
, appendStringBuffers )
-import Config
import SrcLoc
import DynFlags
import ErrUtils
import System.IO
import Data.List
-#if __GLASGOW_HASKELL__ >= 601
-import System.IO ( openBinaryFile )
+#if !defined(__GLASGOW_HASKELL__) || __GLASGOW_HASKELL__ >= 601
+ -- already imported above
+--import System.IO ( openBinaryFile )
#else
import IOExts ( openFileEx, IOModeEx(..) )
#endif
-#if __GLASGOW_HASKELL__ < 601
+#if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ < 601
openBinaryFile fp mode = openFileEx fp (BinaryMode mode)
#endif
in
return (source_imps, ordinary_imps, mod)
+parseError :: SrcSpan -> Message -> a
parseError span err = throwDyn $ mkPlainErrMsg span err
+isSourceIdecl :: ImportDecl name -> Bool
isSourceIdecl (ImportDecl _ s _ _ _) = s
+getImpMod :: ImportDecl name -> Located ModuleName
getImpMod (ImportDecl located_mod _ _ _ _) = located_mod
--------------------------------------------------------------
= parseToks (lexAll (pragState buf loc))
where loc = mkSrcLoc (mkFastString filename) 1 0
- getToken (buf,L _loc tok) = tok
- getLoc (buf,L loc _tok) = loc
+ getToken (_buf,L _loc tok) = tok
+ getLoc (_buf,L loc _tok) = loc
getBuf (buf,_tok) = buf
combine opts (flag, opts') = (flag, opts++opts')
add opt (flag, opts) = (flag, opt:opts)
parseLanguage ((_buf,L loc (ITconid fs)):rest)
= checkExtension (L loc fs) `add`
case rest of
- (_,L loc ITcomma):more -> parseLanguage more
- (_,L loc ITclose_prag):more -> parseToks more
+ (_,L _loc ITcomma):more -> parseLanguage more
+ (_,L _loc ITclose_prag):more -> parseToks more
(_,L loc _):_ -> languagePragParseError loc
parseLanguage (tok:_)
= languagePragParseError (getLoc tok)
lexToken t = return t
lexAll state = case unP (lexer lexToken) state of
- POk state' t@(L _ ITeof) -> [(buffer state,t)]
+ POk _ t@(L _ ITeof) -> [(buffer state,t)]
POk state' t -> (buffer state,t):lexAll state'
_ -> [(buffer state,L (last_loc state) ITeof)]
then L l ("-X"++ext')
else unsupportedExtnError l ext'
+languagePragParseError :: SrcSpan -> a
languagePragParseError loc =
- pgmError (showSDoc (mkLocMessage loc (
- text "cannot parse LANGUAGE pragma")))
+ pgmError
+ (showSDoc (mkLocMessage loc (
+ text "cannot parse LANGUAGE pragma: comma-separated list expected")))
+unsupportedExtnError :: SrcSpan -> String -> a
unsupportedExtnError loc unsup =
pgmError (showSDoc (mkLocMessage loc (
text "unsupported extension: " <>
optionsErrorMsgs :: [String] -> [Located String] -> FilePath -> Messages
-optionsErrorMsgs unhandled_flags flags_lines filename
+optionsErrorMsgs unhandled_flags flags_lines _filename
= (emptyBag, listToBag (map mkMsg unhandled_flags_lines))
where unhandled_flags_lines = [ L l f | f <- unhandled_flags,
L l f' <- flags_lines, f == f' ]