ZeroInstall.Services.Solvers.SelectionCandidateProvider.GetFeeds C# (CSharp) Method

        private IDictionary<FeedUri, Feed> GetFeeds(Requirements requirements)
        {
            var dictionary = new Dictionary<FeedUri, Feed>();

            AddFeedToDict(dictionary, requirements.InterfaceUri, requirements);

            foreach (var uri in GetNativeFeedPaths(requirements.InterfaceUri))
                AddFeedToDict(dictionary, uri, requirements);

            foreach (var uri in GetSitePackagePaths(requirements.InterfaceUri))
                AddFeedToDict(dictionary, uri, requirements);

            foreach (var reference in _interfacePreferences[requirements.InterfaceUri].Feeds)
            {
                try
                {
                    AddFeedToDict(dictionary, reference.Source, requirements);
                }
                    #region Error handling
                catch (IOException ex)
                {
                    // Wrap exception to add context information
                    throw new IOException(
                        string.Format("Failed to load feed {1} manually registered for interface {0}. Try '0install remove-feed {0} {1}'.", requirements.InterfaceUri.ToStringRfc(), reference.Source.ToStringRfc()),
                        ex);
                }
                #endregion
            }

            return dictionary;
        }