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logging module

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nek0 2017-12-12 13:10:00 +01:00
parent c33aa67c3e
commit c82325a1bd
2 changed files with 55 additions and 0 deletions
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22
affection.cabal
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@ -30,12 +30,34 @@ source-repository head
type: git type: git
location: https://github.com/nek0/affection location: https://github.com/nek0/affection
flag debug
description: Enable debug messages
default: False
manual: True
flag warn
description: Enable warning messages
default: False
manual: True
flag error
description: Enable error messages
default: False
manual: True
flag examples flag examples
description: Build example programs description: Build example programs
default: False default: False
library library
if flag(debug)
cpp-options: -DDEBUG
if flag(warn)
cpp-options: -DWARN
if flag(error)
cpp-options: -DERROR
exposed-modules: Affection exposed-modules: Affection
, Affection.Logging
, Affection.Types , Affection.Types
, Affection.StateMachine , Affection.StateMachine
, Affection.MouseInteractable , Affection.MouseInteractable

33
src/Affection/Logging.hs Normal file
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@ -0,0 +1,33 @@
{-# LANGUAGE CPP #-}
module Affection.Logging where
import Debug.Trace
data LogLevel
= Debug
| Warn
| Error
log :: LogLevel -> String -> a -> a
#if defined(DEBUG)
log Debug s = trace ("DEBUG: " ++ s)
#endif
#if defined(WARN) || defined(DEBUG)
log Warn s = trace ("WARN: " ++ s)
#endif
#if defined(ERROR) || defined(WARN) || defined(DEBUG)
log Error s = trace ("ERROR: " ++ s)
#endif
log _ _ = id
logIO :: LogLevel -> String -> IO ()
#if defined(DEBUG)
logIO Debug s = traceIO ("DEBUG: " ++ s)
#endif
#if defined(WARN) || defined(DEBUG)
logIO Warn s = traceIO ("WARN: " ++ s)
#endif
#if defined(ERROR) || defined(WARN) || defined(DEBUG)
logIO Error s = traceIO ("ERROR: " ++ s)
#endif
logIO _ _ = return ()