Module: Celluloid::FSM::ClassMethods

Defined in:
lib/celluloid/fsm.rb

Instance Method Summary collapse

Instance Method Details

#default_state(new_default = nil) ⇒ Object

Obtain or set the default state Passing a state name sets the default state


28
29
30
31
32
33
34
# File 'lib/celluloid/fsm.rb', line 28

def default_state(new_default = nil)
  if new_default
    @default_state = new_default.to_sym
  else
    defined?(@default_state) ? @default_state : DEFAULT_STATE
  end
end

#state(*args, &block) ⇒ Object

Declare an FSM state and optionally provide a callback block to fire Options:

  • to: a state or array of states this state can transition to


44
45
46
47
48
49
50
51
52
53
54
55
56
57
# File 'lib/celluloid/fsm.rb', line 44

def state(*args, &block)
  if args.last.is_a? Hash    # Stringify keys :/

    options = args.pop.each_with_object({}) { |(k,v), h| h[k.to_s] = v }
  else
    options = {}
  end

  args.each do |name|
    name = name.to_sym
    default_state name if options['default']
    states[name] = State.new(name, options['to'], &block)
  end
end

#statesObject

Obtain the valid states for this FSM


37
38
39
# File 'lib/celluloid/fsm.rb', line 37

def states
  @states ||= {}
end