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module Rake
# ##########################################################################
# Mixin for creating easily cloned objects.
#
module Cloneable
# Clone an object by making a new object and setting all the instance
# variables to the same values.
def dup
sibling = self.class.new
instance_variables.each do |ivar|
value = self.instance_variable_get(ivar)
new_value = value.clone rescue value
sibling.instance_variable_set(ivar, new_value)
end
sibling.taint if tainted?
sibling
end
def clone
sibling = dup
sibling.freeze if frozen?
sibling
end
end
end
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