Class: Wye::Switch

Inherits:
Object
  • Object
show all
Defined in:
lib/wye/switch.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base_class) ⇒ Switch

Returns a new instance of Switch.



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# File 'lib/wye/switch.rb', line 5

def initialize(base_class)
  @base_class = base_class
  @thread_to_class_to_alternate = {}
  @mutex = Mutex.new
end

Instance Attribute Details

#base_class ⇒ Object (readonly)

Returns the value of attribute base_class.



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# File 'lib/wye/switch.rb', line 3

def base_class
  @base_class
end

Instance Method Details

#current_alternate(klass, cta = nil) ⇒ Object 



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# File 'lib/wye/switch.rb', line 11

def current_alternate(klass, cta = nil)
  return nil unless klass

  cta ||= class_to_alternate
  alternate = cta[klass]

  return alternate.first unless alternate.nil? || alternate.empty?
  return nil if klass == base_class
  current_alternate(klass.superclass, cta)
end

#on(klass, alternate) ⇒ Object 



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# File 'lib/wye/switch.rb', line 22

def on(klass, alternate)
  class_to_alternate[klass] ||= []
  class_to_alternate[klass].unshift(alternate)
  yield
ensure
  class_to_alternate[klass].shift
  clean_up_after_dead_threads
end