dump(p1, p2 = v2, p3 = v3) public

Serializes obj and all descendant objects. If anIO is specified, the serialized data will be written to it, otherwise the data will be returned as a String. If limit is specified, the traversal of subobjects will be limited to that depth. If limit is negative, no checking of depth will be performed.

class Klass
  def initialize(str)
    @str = str
  def sayHello

(produces no output)

o = Klass.new("hello\n")
data = Marshal.dump(o)
obj = Marshal.load(data)
obj.sayHello   #=> "hello\n"

Marshal can’t dump following objects:

and so on)
ThreadGroup, Continuation
  • objects which defines singleton methods

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