23 lines
718 B
Ruby
23 lines
718 B
Ruby
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class Object
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# Available in 1.8.6 and later.
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unless respond_to?(:instance_variable_defined?)
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def instance_variable_defined?(variable)
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instance_variables.include?(variable.to_s)
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end
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end
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def instance_values #:nodoc:
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instance_variables.inject({}) do |values, name|
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values[name.to_s[1..-1]] = instance_variable_get(name)
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values
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end
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end
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def copy_instance_variables_from(object, exclude = []) #:nodoc:
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exclude += object.protected_instance_variables if object.respond_to? :protected_instance_variables
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vars = object.instance_variables.map(&:to_s) - exclude.map(&:to_s)
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vars.each { |name| instance_variable_set(name, object.instance_variable_get(name)) }
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end
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end
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