# File lib/json/common.rb, line 370 def dump(obj, anIO = nil, limit = nil) if anIO and limit.nil? anIO = anIO.to_io if anIO.respond_to?(:to_io) unless anIO.respond_to?(:write) limit = anIO anIO = nil end end opts = JSON.dump_default_options limit and opts.update(:max_nesting => limit) result = generate(obj, opts) if anIO anIO.write result anIO else result end rescue JSON::NestingError raise ArgumentError, "exceed depth limit" end