parse_metadata

# File lib/bundler/endpoint_specification.rb, line 113
    def parse_metadata(data)
      return unless data
      data.each do |k, v|
        next unless v
        case k.to_s
        when "checksum"
          @checksum = v.last
        when "rubygems"
          @required_rubygems_version = Gem::Requirement.new(v)
        when "ruby"
          @required_ruby_version = Gem::Requirement.new(v)
        end
      end
    rescue StandardError => e
      raise GemspecError, "There was an error parsing the metadata for the gem #{name} (#{version}): #{e.class}\n#{e}\nThe metadata was #{data.inspect}"
    end