\begin{code}
module ErrUtils (
- ErrMsg, WarnMsg, Message,
+ ErrMsg, WarnMsg, Message, Messages, errorsFound, warningsFound,
+
addShortErrLocLine, addShortWarnLocLine,
- addErrLocHdrLine,
- dontAddErrLoc,
+ addErrLocHdrLine, dontAddErrLoc,
+
printErrorsAndWarnings, pprBagOfErrors, pprBagOfWarnings,
+
ghcExit,
- doIfSet, dumpIfSet, dumpIfSet_dyn
+ doIfSet, doIfSet_dyn, dumpIfSet, dumpIfSet_dyn, showPass
) where
#include "HsVersions.h"
import Bag ( Bag, bagToList, isEmptyBag )
-import SrcLoc ( SrcLoc, noSrcLoc )
+import SrcLoc ( SrcLoc, noSrcLoc, isGoodSrcLoc )
import Util ( sortLt )
import Outputable
-import CmdLineOpts ( DynFlags )
+import CmdLineOpts ( DynFlags, DynFlag(..), dopt )
import System ( ExitCode(..), exitWith )
import IO ( hPutStr, stderr )
addShortWarnLocLine :: SrcLoc -> Message -> WarnMsg
addShortErrLocLine locn rest_of_err_msg
- = ( locn
- , hang (ppr locn <> colon)
- 4 rest_of_err_msg
- )
+ | isGoodSrcLoc locn = (locn, hang (ppr locn <> colon) 4
+ rest_of_err_msg)
+ | otherwise = (locn, rest_of_err_msg)
addErrLocHdrLine locn hdr rest_of_err_msg
= ( locn
)
addShortWarnLocLine locn rest_of_err_msg
- = ( locn
- , hang (ppr locn <> colon)
- 4 (ptext SLIT("Warning:") <+> rest_of_err_msg)
- )
+ | isGoodSrcLoc locn = (locn, hang (ppr locn <> colon) 4
+ (ptext SLIT("Warning:") <+> rest_of_err_msg))
+ | otherwise = (locn, rest_of_err_msg)
-dontAddErrLoc :: String -> Message -> ErrMsg
-dontAddErrLoc title rest_of_err_msg
- | null title = (noSrcLoc, rest_of_err_msg)
- | otherwise =
- ( noSrcLoc, hang (text title <> colon) 4 rest_of_err_msg )
+dontAddErrLoc :: Message -> ErrMsg
+dontAddErrLoc msg = (noSrcLoc, msg)
-printErrorsAndWarnings :: (Bag WarnMsg, Bag ErrMsg) -> IO ()
+\end{code}
+
+
+\begin{code}
+type Messages = (Bag WarnMsg, Bag ErrMsg)
+
+errorsFound :: Messages -> Bool
+errorsFound (warns, errs) = not (isEmptyBag errs)
+
+warningsFound :: Messages -> Bool
+warningsFound (warns, errs) = not (isEmptyBag warns)
+
+printErrorsAndWarnings :: PrintUnqualified -> Messages -> IO ()
-- Don't print any warnings if there are errors
-printErrorsAndWarnings (warns, errs)
+printErrorsAndWarnings unqual (warns, errs)
| no_errs && no_warns = return ()
- | no_errs = printErrs (pprBagOfWarnings warns)
- | otherwise = printErrs (pprBagOfErrors errs)
+ | no_errs = printErrs unqual (pprBagOfWarnings warns)
+ | otherwise = printErrs unqual (pprBagOfErrors errs)
where
no_warns = isEmptyBag warns
no_errs = isEmptyBag errs
doIfSet :: Bool -> IO () -> IO ()
doIfSet flag action | flag = action
| otherwise = return ()
+
+doIfSet_dyn :: DynFlags -> DynFlag -> IO () -> IO()
+doIfSet_dyn dflags flag action | dopt flag dflags = action
+ | otherwise = return ()
\end{code}
\begin{code}
+showPass :: DynFlags -> String -> IO ()
+showPass dflags what
+ | dopt Opt_D_show_passes dflags = hPutStr stderr ("*** "++what++":\n")
+ | otherwise = return ()
+
dumpIfSet :: Bool -> String -> SDoc -> IO ()
dumpIfSet flag hdr doc
| not flag = return ()
| otherwise = printDump (dump hdr doc)
-dumpIfSet_dyn :: DynFlags -> (DynFlags -> Bool) -> String -> SDoc -> IO ()
+dumpIfSet_dyn :: DynFlags -> DynFlag -> String -> SDoc -> IO ()
dumpIfSet_dyn dflags flag hdr doc
- | not (flag dflags) = return ()
- | otherwise = printDump (dump hdr doc)
+ | not (dopt flag dflags) = return ()
+ | otherwise = printDump (dump hdr doc)
dump hdr doc
= vcat [text "",