method

warn

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warn(message = nil, callstack = nil) public

Outputs a deprecation warning to the output configured by ActiveSupport::Deprecation.behavior.

ActiveSupport::Deprecation.warn('something broke!')
# => "DEPRECATION WARNING: something broke! (called from your_code.rb:1)"

Show source

# File activesupport/lib/active_support/deprecation/reporting.rb, line 16
      def warn(message = nil, callstack = nil)
        return if silenced

        callstack ||= caller_locations(2)
        deprecation_message(callstack, message).tap do |m|
          behavior.each { |b| b.call(m, callstack) }
        end
      end

warn

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