Class: SassListen::FSM::State

Inherits:
Object
  • Object
show all
Defined in:
lib/sass-listen/fsm.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, transitions = nil, &block) ⇒ State

Returns a new instance of State.


113
114
115
116
117
# File 'lib/sass-listen/fsm.rb', line 113

def initialize(name, transitions = nil, &block)
  @name, @block = name, block
  @transitions = nil
  @transitions = Array(transitions).map(&:to_sym) if transitions
end

Instance Attribute Details

#nameObject (readonly)

Returns the value of attribute name


111
112
113
# File 'lib/sass-listen/fsm.rb', line 111

def name
  @name
end

#transitionsObject (readonly)

Returns the value of attribute transitions


111
112
113
# File 'lib/sass-listen/fsm.rb', line 111

def transitions
  @transitions
end

Instance Method Details

#call(obj) ⇒ Object


119
120
121
# File 'lib/sass-listen/fsm.rb', line 119

def call(obj)
  obj.instance_eval(&@block) if @block
end

#valid_transition?(new_state) ⇒ Boolean

Returns:

  • (Boolean)

123
124
125
126
127
128
# File 'lib/sass-listen/fsm.rb', line 123

def valid_transition?(new_state)
  # All transitions are allowed unless expressly
  return true unless @transitions

  @transitions.include? new_state.to_sym
end