Re: [Haskell-cafe] Re: is there a way to pretty print a module?

On Thu, Oct 30, 2008 at 10:15 AM, Anatoly Yakovenko wrote:

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is there a way to pretty print a module? like:

module Main where import Language.Haskell.TH main = do print $ pprint Main

haskell-src should be able to do that.

I think haskell-src requires you to read the module at run time. I want to embed the contents of the module in my program. Basically a program that can print itself.

Could you use haskell-src from TH and then unsafePerformIO to get the reading to work during compile time? I've done something like this in the past with Language.Haskell and TH. I described it here: http://blog.codersbase.com/2006/09/01/simple-unit-testing-in-haskell/ Maybe someone who has studied more TH knows a way to remove the unsafePerformIO. Jason