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Contents
module Representable
# Objects marked cloneable will be cloned in #inherit!.
module Cloneable
end
# Objects marked cloneable will be inherit!ed in #inherit! when available in parent and child.
module Inheritable
include Cloneable # all Inheritable are also Cloneable since #clone is one step of our inheritance.
class Array < ::Array
include Inheritable
def inherit!(parent)
push(*parent.clone)
end
end
class Hash < ::Hash
include Inheritable
module InstanceMethods
def inherit!(parent)
#merge!(parent.clone)
for key in (parent.keys + keys).uniq
next unless parent_value = parent[key]
self[key].inherit!(parent_value) and next if self[key].is_a?(Inheritable)
self[key] = parent_value.clone and next if parent_value.is_a?(Cloneable)
self[key] = parent_value # merge! behaviour
end
self
end
def clone
self.class[ collect { |k,v| [k, clone_value(v)] } ]
end
private
def clone_value(value)
return value.clone if value.is_a?(Cloneable)
value
end
end
include InstanceMethods
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems