Module: Singleton
- Defined in:
- opal/stdlib/singleton.rb
Defined Under Namespace
Modules: SingletonClassMethods
Class Method Summary
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Instance Method Summary
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Class Method Details
.__init__(klass) ⇒ Object
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# File 'opal/stdlib/singleton.rb', line 22
def __init__(klass)
klass.instance_eval do
@singleton__instance__ = nil
end
def klass.instance
return @singleton__instance__ if @singleton__instance__
@singleton__instance__ = new
end
klass
end
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Instance Method Details
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# File 'opal/stdlib/singleton.rb', line 2
def clone
raise TypeError, "can't clone instance of singleton #{self.class}"
end
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# File 'opal/stdlib/singleton.rb', line 6
def dup
raise TypeError, "can't dup instance of singleton #{self.class}"
end
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