50 lines
1.5 KiB
Haskell
50 lines
1.5 KiB
Haskell
{-# OPTIONS -cpp #-}
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--
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-- Copyright (c) 2004-5 Don Stewart - http://www.cse.unsw.edu.au/~dons
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-- GPL version 2 or later (see http://www.gnu.org/copyleft/gpl.html)
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--
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--
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-- | Runplugs: use hs-plugins to run a Haskell expression under
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-- controlled conditions.
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--
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import System.Eval.Haskell (unsafeEval)
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import Data.Maybe (isJust, fromJust)
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import Control.Monad (when)
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import System.Exit (exitWith, ExitCode(ExitSuccess))
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import System.IO (getContents, putStrLn)
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import System.Posix.Resource (setResourceLimit,
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Resource(ResourceCPUTime),
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ResourceLimits(ResourceLimits),
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ResourceLimit(ResourceLimit))
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rlimit = ResourceLimit 3
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context = prehier ++ datas ++ controls
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prehier = ["Char", "List", "Maybe", "Numeric", "Random" ]
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datas = map ("Data." ++) [
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"Bits", "Bool", "Char", "Dynamic", "Either",
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"Graph", "Int", "Ix", "List", "Maybe",
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#if __GLASGOW_HASKELL__ >= 604
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"Map",
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#else
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"FiniteMap",
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#endif
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"Ratio", "Set", "Tree", "Tuple", "Typeable", "Word"
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]
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controls = map ("Control." ++) ["Monad", "Arrow"]
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main = do
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setResourceLimit ResourceCPUTime (ResourceLimits rlimit rlimit)
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s <- getContents
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when (not . null $ s) $ do
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s <- unsafeEval ("(take 2048 (show ("++s++")))") context
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when (isJust s) (putStrLn (fromJust s))
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exitWith ExitSuccess
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