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-- A test to show that Static Pointers can be listed.
{-# LANGUAGE StaticPointers #-}
module Main where
import Control.Monad (when)
import Data.List ((\\))
import GHC.StaticPtr
import System.Exit
main = do
found <- staticPtrKeys
when (not $ eqBags found expected) $ do
print ("expected", expected)
print ("found", found)
exitFailure
where
expected =
[ staticKey $ static (\x -> x :: Int)
, staticKey (static return :: StaticPtr (Int -> IO Int))
, staticKey $ static g
]
eqBags :: Eq a => [a] -> [a] -> Bool
eqBags xs ys = null (xs \\ ys) && null (ys \\ xs)
g :: Int -> Int
g = (+1)
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