Class: Collins::Some

Inherits:
Option show all
Defined in:
lib/collins/option.rb

Overview

Represents a present value

A number of equality and comparison methods are implemented so that ‘Some` values are compared using the value of `x`.

Instance Method Summary collapse

Methods inherited from Option

#defined?, #exists?, #filter, #filter_not, #flat_map, #foreach, #get_or_else, #map, #or_else

Constructor Details

#initialize(value) ⇒ Some

Returns a new instance of Some.



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# File 'lib/collins/option.rb', line 196

def initialize value
  @x = value
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/collins/option.rb', line 212

def <=>(other)
  self.class == other.class ?
    (x <=> other.x) : nil
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/collins/option.rb', line 199

def empty?
  false
end

#eql?(other) ⇒ Boolean Also known as: ==

Returns:

  • (Boolean) 


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# File 'lib/collins/option.rb', line 205

def eql? other
  self.class.equal?(other.class) && x.eql?(other.x)
end

#get ⇒ Object 



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# File 'lib/collins/option.rb', line 202

def get
  x
end

#hash ⇒ Object 



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# File 'lib/collins/option.rb', line 209

def hash
  x.hash
end