class Bundler::Definition

def specs
  @specs ||= begin
    begin
      specs = resolve.materialize(Bundler.settings[:cache_all_platforms] ? dependencies : requested_dependencies)
    rescue GemNotFound => e # Handle yanked gem
      gem_name, gem_version = extract_gem_info(e)
      locked_gem = @locked_specs[gem_name].last
      raise if locked_gem.nil? || locked_gem.version.to_s != gem_version || !@remote
      raise GemNotFound, "Your bundle is locked to #{locked_gem}, but that version could not " \
                         "be found in any of the sources listed in your Gemfile. If you haven't changed sources, " \
                         "that means the author of #{locked_gem} has removed it. You'll need to update your bundle " \
                         "to a different version of #{locked_gem} that hasn't been removed in order to install."
    end
    unless specs["bundler"].any?
      local = Bundler.settings[:frozen] ? rubygems_index : index
      bundler = local.search(Gem::Dependency.new("bundler", VERSION)).last
      specs["bundler"] = bundler if bundler
    end
    specs
  end
end