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# File 'lib/delta_attributes3_2/visitor.rb', line 5
def visit_with_delta_attribute obj
return visit_without_delta_attribute obj unless obj.is_a?(Arel::Nodes::DeltaAttribute)
return visit_without_delta_attribute obj.arel_node unless obj.valid?
object = obj.arel_node
send dispatch[object.class], obj
rescue NoMethodError => e
raise e if respond_to?(dispatch[object.class], true)
superklass = object.class.ancestors.find { |klass|
respond_to?(dispatch[klass], true)
}
raise(TypeError, "Cannot visit #{object.class}") unless superklass
dispatch[object.class] = dispatch[superklass]
retry
end
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