method
arity_coerce
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Class: Behavior
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arity_coerce(behavior)
private
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# File activesupport/lib/active_support/deprecation/behaviors.rb, line 112 def arity_coerce(behavior) unless behavior.respond_to?(:call) raise ArgumentError, "#{behavior.inspect} is not a valid deprecation behavior." end if behavior.arity == 4 || behavior.arity == -1 behavior else -> message, callstack, _, _ { behavior.call(message, callstack) } end end