49 lines
955 B
Ruby
49 lines
955 B
Ruby
module Mutant
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# A simple delegator with opinions
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module Delegator
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# Class level mixins
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module ClassMethods
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private
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# Create delegators to object
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#
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# @return [undefined]
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#
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# @api private
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def delegate(*names)
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names.each(&method(:define_delegator))
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end
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# Create delegator to object
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#
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# @param [Symbol] name
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#
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# @return [undefined]
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#
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# @api private
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def define_delegator(name)
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fail "method #{name} already defined" if instance_methods.include?(name)
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define_method(name) do
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object.public_send(name)
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end
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private name
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end
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end # ClassMethods
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# Hook called when module is included
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#
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# @param [Class,Module] host
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#
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# @return [undefined]
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#
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# @api private
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def self.included(host)
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super
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host.extend(ClassMethods)
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end
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end # Delegator
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end # Mutant
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