Created
August 6, 2019 16:03
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| {-# LANGUAGE ScopedTypeVariables #-} | |
| import GHC.Stack | |
| import Control.Exception | |
| import Data.Functor | |
| g :: HasCallStack => IO Bool | |
| g = throwIO $ SomeException $ userError "foo" | |
| f :: HasCallStack => IO () | |
| f = void $ g | |
| main :: IO () | |
| main = catch f $ \(exc :: SomeException) -> print $ prettyCallStack callStack |
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