<% if ENV['OPAL_BROWSER_PROMISE'] == 'v2' %>
  require 'promise'
  require 'promise/v2'
<% else %>
  require 'promise'

  # Polyfill #to_v1, which isn't present before Opal v1.3.0
  class Promise
    unless Promise.method_defined? :to_v1
      alias to_v1 itself
    end
  end
<% end %>

require 'browser/utils'

module Browser
  class Promise
    # Return a correct promise for opal-rspec, which for now is
    # PromiseV1 until opal-rspec is ported.
    def for_rspec
      to_v1
    end
  end
end