Module: Marshal

# File 'activesupport/lib/active_support/core_ext/marshal.rb', line 5

def load_with_autoloading(source, proc = nil)
  load_without_autoloading(source, proc)
rescue ArgumentError, NameError => exc
  if exc.message.match(%r|undefined class/module (.+?)(::)?\z|)
    # try loading the class/module
    loaded = $1.constantize

    raise unless $1 == loaded.name

    # if it is an IO we need to go back to read the object
    source.rewind if source.respond_to?(:rewind)
    retry
  else
    raise exc
  end
end