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import Module_24_a_2
--import Control.Concurrent -- Non-strict versions
-- Test: The type constructors are accessible
-- mTypeConstructorAccessible :: IO (StrictMVar Int)
-- mTypeConstructorAccessible = newStrictEmptyMVar
-- cTypeConstructorAccessible :: IO (StrictChan Char)
-- cTypeConstructorAccessible = newStrictChan
-- Test: The data constructors are not accessible
-- mDataConstructorNotAccessible :: StrictMVar Int
-- mDataConstructorNotAccessible x = case x of
-- StrictM j -> undefined
-- cDataConstructorNotAccessible :: StrictChan Int
-- cDataConstructorNotAccessible x = case x of
-- StrictC j -> undefined
-- Test: It is not possible to change the import from the strict versions to
-- non-strict ones with this test still compiling
-- mStrict = do
-- x <- newStrictEmptyMVar
-- putMVar x 1
-- v <- takeMVar x
-- putStrLn $ show v
-- cStrict = do
-- x <- newStrictChan
-- writeChan x 2
-- v <- readChan x
-- putStrLn $ show v
-- Test: The non-strict versions do not evalute the value before placing it into
-- MVar or Chan
-- m1NonStrict = do
-- x <- newEmptyMVar
-- putMVar x undefined
-- return ()
-- m2NonStrict = do
-- x <- newMVar undefined
-- return ()
-- cNonStrict = do
-- x <- newChan
-- writeChan x undefined
-- return ()
-- Test: The strict versions evalute the value before placing it into MVar or
-- Chan
-- m1Strict = do
-- x <- newStrictEmptyMVar
-- putMVar x undefined
-- return ()
-- m2Strict = do
-- x <- newStrictMVar undefined
-- return ()
-- cStrict = do
-- x <- newStrictChan
-- writeChan x undefined
-- return ()
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