Class: NilClass

Inherits:
Object show all
Defined in:
opal/opal/corelib/nil.rb,
opal/opal/corelib/marshal/write_buffer.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.allocateObject

Raises:


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# File 'opal/opal/corelib/nil.rb', line 5

def allocate
  raise TypeError, "allocator undefined for #{name}"
end

Instance Method Details

#!Object


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# File 'opal/opal/corelib/nil.rb', line 12

def !
  true
end

#&(other) ⇒ Object


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# File 'opal/opal/corelib/nil.rb', line 16

def &(other)
  false
end

#==(other) ⇒ Object


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# File 'opal/opal/corelib/nil.rb', line 28

def ==(other)
  `other === nil`
end

#^(other) ⇒ Object


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# File 'opal/opal/corelib/nil.rb', line 24

def ^(other)
  `other !== false && other !== nil`
end

#__marshal__(buffer) ⇒ Object


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# File 'opal/opal/corelib/marshal/write_buffer.rb', line 2

def __marshal__(buffer)
  buffer.append('0')
end

#clone(freeze: true) ⇒ Object


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# File 'opal/opal/corelib/nil.rb', line 36

def clone(freeze: true)
  nil
end

#dupObject


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# File 'opal/opal/corelib/nil.rb', line 32

def dup
  nil
end

#inspectObject


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# File 'opal/opal/corelib/nil.rb', line 40

def inspect
  'nil'
end

#instance_variablesObject


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# File 'opal/opal/corelib/nil.rb', line 83

def instance_variables
  []
end

#nil?Boolean

Returns:


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# File 'opal/opal/corelib/nil.rb', line 44

def nil?
  true
end

#rationalize(*args) ⇒ Object

Raises:


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# File 'opal/opal/corelib/nil.rb', line 74

def rationalize(*args)
  raise ArgumentError if args.length > 1
  Rational(0, 1)
end

#singleton_classObject


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# File 'opal/opal/corelib/nil.rb', line 48

def singleton_class
  NilClass
end

#to_aObject


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# File 'opal/opal/corelib/nil.rb', line 52

def to_a
  []
end

#to_cObject


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# File 'opal/opal/corelib/nil.rb', line 70

def to_c
  Complex.new(0, 0)
end

#to_hObject


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# File 'opal/opal/corelib/nil.rb', line 56

def to_h
  `Opal.hash()`
end

#to_iObject Also known as: to_f


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# File 'opal/opal/corelib/nil.rb', line 60

def to_i
  0
end

#to_rObject


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# File 'opal/opal/corelib/nil.rb', line 79

def to_r
  Rational(0, 1)
end

#to_sObject


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# File 'opal/opal/corelib/nil.rb', line 66

def to_s
  ''
end

#|(other) ⇒ Object


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# File 'opal/opal/corelib/nil.rb', line 20

def |(other)
  `other !== false && other !== nil`
end