Class: Q::Defer

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Defer

Returns a new instance of Defer.



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# File 'lib/q/defer.rb', line 4

def initialize
  @promise = Q::Promise.new(self)
  @state = :active
end

Instance Attribute Details

#promise ⇒ Object (readonly)

Returns the value of attribute promise.



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# File 'lib/q/defer.rb', line 2

def promise
  @promise
end

#state ⇒ Object (readonly)

Returns the value of attribute state.



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# File 'lib/q/defer.rb', line 2

def state
  @state
end

Instance Method Details

#finished? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/q/defer.rb', line 35

def finished?
  @state == :resolved || @state == :rejected
end

#reject(result = nil) ⇒ Object 



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# File 'lib/q/defer.rb', line 18

def reject(result = nil)
  unless finished?
    @state = :rejected
    @promise.fulfill(@state, result)
  end

  @promise
end

#rejected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/q/defer.rb', line 31

def rejected?
  @state == :rejected
end

#resolve(result = nil) ⇒ Object 



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# File 'lib/q/defer.rb', line 9

def resolve(result = nil)
  unless finished?
    @state = :resolved
    @promise.fulfill(@state, result)
  end

  @promise
end

#resolved? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/q/defer.rb', line 27

def resolved?
  @state == :resolved
end