34 lines
716 B
Haskell
34 lines
716 B
Haskell
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{-# LANGUAGE CPP #-}
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module Affection.Logging where
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import Debug.Trace
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data LogLevel
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= Debug
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| Warn
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| Error
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log :: LogLevel -> String -> a -> a
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#if defined(DEBUG)
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log Debug s = trace ("DEBUG: " ++ s)
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#endif
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#if defined(WARN) || defined(DEBUG)
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log Warn s = trace ("WARN: " ++ s)
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#endif
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#if defined(ERROR) || defined(WARN) || defined(DEBUG)
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log Error s = trace ("ERROR: " ++ s)
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#endif
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log _ _ = id
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logIO :: LogLevel -> String -> IO ()
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#if defined(DEBUG)
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logIO Debug s = traceIO ("DEBUG: " ++ s)
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#endif
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#if defined(WARN) || defined(DEBUG)
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logIO Warn s = traceIO ("WARN: " ++ s)
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#endif
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#if defined(ERROR) || defined(WARN) || defined(DEBUG)
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logIO Error s = traceIO ("ERROR: " ++ s)
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#endif
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logIO _ _ = return ()
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