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ObjectLogger.coffee
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ObjectLogger.coffee
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class ObjectLogger
constructor:(@className, @defaultLevel = 'info')->
@log = loglevel.createLogger(@className, @defaultLevel)
@callStack = []
@log.enter = @bindMethod(@enter, 'debug')
@log.fineEnter = @bindMethod(@enter, 'fine')
@log.return = @bindMethod(@return, 'debug')
@log.fineReturn = @bindMethod(@return, 'fine')
return @log
enter: (level, args...)->
throw new Error ('ObjectLogger: No method name provided to enter') if args.length is 0
methodName = args.shift()
@callStack.unshift methodName
@log.setPrefix "#{@className}.#{methodName}:"
args.unshift 'ENTER'
@log[level].apply @log, args
return: (level)->
@log[level].call @log, 'RETURN'
@callStack.shift()
if @callStack.length > 0
methodName = @callStack[0]
@log.setPrefix "#{@className}.#{methodName}:"
bindMethod: (method, level) ->
if typeof method.bind == 'function'
return method.bind(@, level)
else
try
return Function::bind.call(method, @, level)
catch e
# Missing bind shim or IE8 + Modernizr, fallback to wrapping
return (args...)=>
args.unshift(level)
Function::apply.apply method, [
@
args
]