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Class: Date::Infinity

Inherits:
Numeric show all
Includes:
Comparable
Defined in:
opal/stdlib/date.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Numeric

#to_json , #to_n

Constructor Details

#initialize(d = 1) ⇒ Infinity

Returns a new instance of Infinity

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# File 'opal/stdlib/date.rb', line 7
def initialize(d = 1)
 @d = d <=> 0
end

Instance Attribute Details

#dObject (readonly)

Returns the value of attribute d

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# File 'opal/stdlib/date.rb', line 11
def d
 @d
end

Instance Method Details

#+@Object

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# File 'opal/stdlib/date.rb', line 37
def +@
 self.class.new(+d)
end

#-@Object

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# File 'opal/stdlib/date.rb', line 33
def -@
 self.class.new(-d)
end

#<=>(other) ⇒ Object

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# File 'opal/stdlib/date.rb', line 41
def <=>(other)
 case other
 when Infinity 
 d <=> other.d
 when Numeric 
 d
 else
 begin
 l, r = other.coerce(self)
 l <=> r
 rescue NoMethodError
 nil
 end
 end
end

#absObject

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# File 'opal/stdlib/date.rb', line 29
def abs
 self.class.new
end

#coerce(other) ⇒ Object

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# File 'opal/stdlib/date.rb', line 57
def coerce(other)
 case other
 when Numeric 
 [-d, d]
 else
 super
 end
end

#finite?Boolean

Returns:

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# File 'opal/stdlib/date.rb', line 17
def finite?
 false
end

#infinite?Boolean

Returns:

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# File 'opal/stdlib/date.rb', line 21
def infinite?
 d.nonzero?
end

#nan?Boolean

Returns:

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# File 'opal/stdlib/date.rb', line 25
def nan?
 d.zero?
end

#to_fObject

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# File 'opal/stdlib/date.rb', line 66
def to_f
 return 0 if @d == 0
 if @d > 0
 Float::INFINITY
 else
 -Float::INFINITY
 end
end

#zero?Boolean

Returns:

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# File 'opal/stdlib/date.rb', line 13
def zero?
 false
end

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