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    frontend.coffee node.coffee untar.coffee util.coffee ClassData.coffee ClassLoader.coffee ConstantPool.coffee attributes.coffee disassembler.coffee exceptions.coffee java_object.coffee jvm.coffee logging.coffee methods.coffee natives.coffee opcodes.coffee runtime.coffee testing.coffee util.coffee

  • logging.coffee

  • ¶ 
    gLong = require '../vendor/gLong.js'

"use strict"
  • ¶

    things assigned to root will be available outside this module

    root = exports ? window.logging ?= {}
  • ¶

    used for debugging the stack and local variables

    root.debug_vars = (arr) -> arr.map (e)->
  return '!' if e is null
  return 'undef' if e is undefined
  return "*#{e.ref}" if e.ref?
  return "#{e}L" if e instanceof gLong
  e
  • ¶

    log levels

    root.VTRACE = 10
root.TRACE = 9
root.DEBUG = 5
root.ERROR = 1
root.log_level ?= root.ERROR
  • ¶

    IE Compatibility

    unless console? or window?.console
  window.console = {
    log: -> # Stub
    error: (msgs...) ->
      throw msgs.join(' ') + '\n' # Better than silently failing.
    profile: -> # Stub
    profileEnd: -> # Stub
  }

root.log = (level, msgs...) ->
  if level <= root.log_level
  • ¶

    This used to be a CoffeeScript '...' invocation, which translated into console.apply(console, msgs). This does not work in IE, as some functions defined off of windows do not support .apply. Thus, we work around this by using join to construct a giant string, which works fine. http://stackoverflow.com/questions/6873896/javascript-call-and-apply-in-internet-explorer-8-and-7-for-window-print/6875494#6875494

        console[if level == 1 then 'error' else 'log'](msgs.join(' '))

root.vtrace = (msgs...) -> root.log root.VTRACE, msgs...
root.trace = (msgs...) -> root.log root.TRACE, msgs...
root.debug = (msgs...) -> root.log root.DEBUG, msgs...
root.error = (msgs...) -> root.log root.ERROR, msgs...