36 lines
1.1 KiB
Ruby
36 lines
1.1 KiB
Ruby
class Module
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# Return the module which contains this one; if this is a root module, such as
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# +::MyModule+, then Object is returned.
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def parent
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parent_name = name.split('::')[0..-2] * '::'
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parent_name.empty? ? Object : parent_name.constantize
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end
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# Return all the parents of this module, ordered from nested outwards. The
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# receiver is not contained within the result.
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def parents
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parents = []
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parts = name.split('::')[0..-2]
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until parts.empty?
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parents << (parts * '::').constantize
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parts.pop
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end
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parents << Object unless parents.include? Object
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parents
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end
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# Return the constants that have been defined locally by this object and not
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# in an ancestor. This method may miss some constants if their definition in
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# the ancestor is identical to their definition in the receiver.
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def local_constants
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inherited = {}
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ancestors.each do |anc|
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next if anc == self
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anc.constants.each { |const| inherited[const] = anc.const_get(const) }
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end
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constants.select do |const|
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! inherited.key?(const) || inherited[const].object_id != const_get(const).object_id
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end
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end
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end
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