dump (JSON)

         # File lib/json/common.rb, line 291
    291:   def dump(obj, anIO = nil, limit = nil)
    292:     if anIO and limit.nil?
    293:       anIO = anIO.to_io if anIO.respond_to?(:to_io)
    294:       unless anIO.respond_to?(:write)
    295:         limit = anIO
    296:         anIO = nil
    297:       end
    298:     end
    299:     limit ||= 0
    300:     result = generate(obj, :allow_nan => true, :max_nesting => limit)
    301:     if anIO
    302:       anIO.write result
    303:       anIO
    304:     else
    305:       result
    306:     end
    307:   rescue JSON::NestingError
    308:     raise ArgumentError, "exceed depth limit"
    309:   end