dependency_resolver_set

# File lib/rubygems/source.rb, line 89
  def dependency_resolver_set # :nodoc:
    return Gem::Resolver::IndexSet.new self if 'file' == api_uri.scheme

    bundler_api_uri = api_uri + './api/v1/dependencies'

    begin
      fetcher = Gem::RemoteFetcher.fetcher
      response = fetcher.fetch_path bundler_api_uri, nil, true
    rescue Gem::RemoteFetcher::FetchError
      Gem::Resolver::IndexSet.new self
    else
      if response.respond_to? :uri then
        Gem::Resolver::APISet.new response.uri
      else
        Gem::Resolver::APISet.new bundler_api_uri
      end
    end
  end