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# File 'lib/neo4j/core/instrumentable.rb', line 15
def instrument(name, label, arguments)
klass = class << self; self; end
klass.instance_eval do
define_method("subscribe_to_#{name}") do |&b|
ActiveSupport::Notifications.subscribe(label) do |a, start, finish, id, payload|
b.call yield(a, start, finish, id, payload)
end
end
define_method("instrument_#{name}") do |*args, &b|
hash = arguments.each_with_index.each_with_object({}) do |(argument, i), result|
result[argument.to_sym] = args[i]
end
ActiveSupport::Notifications.instrument(label, hash) { b.call }
end
end
end
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