Class: When::Deferred

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Deferred

Returns a new instance of Deferred.



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# File 'lib/when.rb', line 44

def initialize
  @resolution = nil
  @callbacks = { :resolved => [], :rejected => [] }
  @resolver = Resolver.new(self)
  @promise = Promise.new(self)
end

Instance Attribute Details

#promise ⇒ Object (readonly)

Returns the value of attribute promise.



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# File 'lib/when.rb', line 42

def promise
  @promise
end

#resolver ⇒ Object (readonly)

Returns the value of attribute resolver.



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# File 'lib/when.rb', line 42

def resolver
  @resolver
end

Instance Method Details

#callback(&block) ⇒ Object 



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# File 'lib/when.rb', line 53

def callback(&block); add_callback(:resolved, block); end

#errback(&block) ⇒ Object 



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# File 'lib/when.rb', line 55

def errback(&block); add_callback(:rejected, block); end

#reject(*args) ⇒ Object 



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# File 'lib/when.rb', line 52

def reject(*args); mark_resolved(:rejected, args); end

#resolve(*args) ⇒ Object 



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# File 'lib/when.rb', line 51

def resolve(*args); mark_resolved(:resolved, args); end

#resolved? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/when.rb', line 56

def resolved?; !@resolution.nil?; end

#then(&block) ⇒ Object 



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# File 'lib/when.rb', line 54

def then(&block); add_callback(:resolved, block); end