class Johnson::SpiderMonkey::Runtime

def add_gcthing(thing)
  @gcthings[thing.object_id] = thing
end

def compile(script, filename=nil, linenum=nil)
  filename ||= 'none'
  linenum  ||= 1
  native_compile(script, filename, linenum)
end

def current_context
  contexts = (Thread.current[CONTEXT_MAP_KEY] ||= {})
  contexts[self.object_id] ||= Context.new(self)
end

def debugger?
  not @debugger.nil?
end

def evaluate_compiled_script script
  evaluate_compiled_script_without_clearing_traps(script)
ensure
  @traps.each do |trap_tuple|
    clear_trap(*trap_tuple)
  end
end

def initialize(options={})
  @debugger = nil
  @gcthings = {}
  @traps = []
  initialize_native(options)
  super()
end

def raise_js_exception(jsex)
  raise jsex if Exception === jsex
  raise Johnson::Error.new(jsex.to_s) unless Johnson::SpiderMonkey::RubyLandProxy === jsex
  stack = jsex.stack rescue nil
  message = jsex['message'] || jsex.to_s
  at = "(#{jsex['fileName']}):#{jsex['lineNumber']}"
  ex = Johnson::Error.new("#{message} at #{at}")
  if stack
    js_caller = stack.split("\n").find_all { |x| x != '@:0' }
    ex.set_backtrace(js_caller + caller)
  else
    ex.set_backtrace(caller)
  end
  raise ex
end

def remove_gcthing(object_id)
  @gcthings.delete(object_id) if defined? @gcthings
end

def should_sm_gc?
  return false if Thread.list.find_all { |t|
    t.key?(CONTEXT_MAP_KEY)
  }.length > 1
  true
end