-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | More useful trace functions for investigating bugs
--   
--   A collection of things for debugging, (to prevent me from writing them
--   again)
@package debug-tracy
@version 0.1.0.3

module Debug.Tracy

-- | The <a>trace</a> function outputs the trace message given as its first
--   argument, before returning the second argument as its result.
--   
--   For example, this returns the value of <tt>f x</tt> but first outputs
--   the message.
--   
--   <pre>
--   &gt;&gt;&gt; let x = 123; f = show
--   
--   &gt;&gt;&gt; trace ("calling f with x = " ++ show x) (f x)
--   "calling f with x = 123
--   123"
--   </pre>
--   
--   The <a>trace</a> function should <i>only</i> be used for debugging, or
--   for monitoring execution. The function is not referentially
--   transparent: its type indicates that it is a pure function but it has
--   the side effect of outputting the trace message.
trace :: () => String -> a -> a

-- | trace with show and a delimiter built in
tracy :: Show a => String -> a -> a

-- | trace the input and output of a function
proTracy :: (Show a, Show b) => String -> (a -> b) -> a -> b

-- | Spit out a random Keanu Reaves quote when <tt>a</tt> is evauluated
keanu :: a -> a

-- | spit out a random Arnold Schwarzenegger quote when <tt>a</tt> is
--   evaluated
arnold :: a -> a

-- | Inspect the size of a collection
hasLength :: Foldable t => String -> t a -> t a

-- | Inspect if <tt>t a</tt> is null
isFound :: Foldable t => String -> t a -> t a
spy :: Show b => String -> (a -> b) -> a -> a
scope :: String -> f a -> Scope f a
unScope :: Scope f a -> f a
data Scope f a
instance (GHC.Base.Functor f, Data.Foldable.Foldable f) => GHC.Base.Functor (Debug.Tracy.Scope f)
instance (GHC.Base.Applicative f, Data.Foldable.Foldable f) => GHC.Base.Applicative (Debug.Tracy.Scope f)
instance (GHC.Base.Monad m, Data.Foldable.Foldable m) => GHC.Base.Monad (Debug.Tracy.Scope m)