Class: Mutator::Machine

Inherits:
Object
  • Object
show all
Defined in:
lib/mutator/machine.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stateholder) ⇒ Machine

Returns a new instance of Machine.



5
6
7
 
# File 'lib/mutator/machine.rb', line 5

def initialize stateholder
  @stateholder = stateholder
end

Instance Attribute Details

#stateholder ⇒ Object (readonly)

Returns the value of attribute stateholder.



3
4
5
 
# File 'lib/mutator/machine.rb', line 3

def stateholder
  @stateholder
end

Class Method Details

.states ⇒ Object 



30
31
32
33
34
35
 
# File 'lib/mutator/machine.rb', line 30

def self.states
  transitions.map do |transition|
    to, from = transition[:to], transition[:from]
    [to, from]
  end.flatten.uniq
end

Instance Method Details

#current_state ⇒ Object 



13
14
15
 
# File 'lib/mutator/machine.rb', line 13

def current_state
  stateholder.state
end

#states ⇒ Object 



37
38
39
 
# File 'lib/mutator/machine.rb', line 37

def states
  self.class.states
end

#transition(options) ⇒ Object 



17
18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/mutator/machine.rb', line 17

def transition options
  options = extract options
  transition, success, failure = options.values

  if transition.call
    success.call transition
    true
  else
    failure.call transition
    false
  end
end

#transitions ⇒ Object 



41
42
43
 
# File 'lib/mutator/machine.rb', line 41

def transitions
  self.class.transitions
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


9
10
11
 
# File 'lib/mutator/machine.rb', line 9

def valid?
  self.class.states.include? current_state
end