There is also the 'isevaluated' package (which depends on vacuum, but seems to do something more involved than your code). Erik On Mon, Jul 2, 2012 at 7:40 AM, Chaddaï Fouché <chaddai.fouche@gmail.com> wrote:
On Mon, Jul 2, 2012 at 5:29 AM, Kazu Yamamoto <kazu@iij.ad.jp> wrote:
Hello,
Are there any ways to see if a value is a thunk or memorized? I would like to have a function like: isThunk :: a -> IO Bool
vacuum allow that and much more though I don't know if it still works correctly on GHC 7.4. Anyway your isThunk is
isThunk a = fmap GHC.Vacuum.ClosureType.isThunk GHC.Vacuum.closureType
(Feel free to arrange your imports to make that a bit more readable ;)
http://hackage.haskell.org/package/vacuum -- Jedaï
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