Golang kytheuri.Parse函数代码示例

func displayDirectory(d *ftpb.DirectoryReply) error {
	if *displayJSON {
		return jsonMarshaler.Marshal(out, d)
	}

	for _, d := range d.Subdirectory {
		if !lsURIs {
			uri, err := kytheuri.Parse(d)
			if err != nil {
				return fmt.Errorf("received invalid directory uri %q: %v", d, err)
			}
			d = filepath.Base(uri.Path) + "/"
		}
		if _, err := fmt.Fprintln(out, d); err != nil {
			return err
		}
	}
	for _, f := range d.File {
		if !lsURIs {
			uri, err := kytheuri.Parse(f)
			if err != nil {
				return fmt.Errorf("received invalid file ticket %q: %v", f, err)
			}
			f = filepath.Base(uri.Path)
		}
		if _, err := fmt.Fprintln(out, f); err != nil {
			return err
		}
	}
	return nil
}

func init() {
	testVNames = make([]*spb.VName, len(testNodes))
	for i, n := range testNodes {
		uri, _ := kytheuri.Parse(n.Ticket)
		testVNames[i] = uri.VName()
	}
}

func displayRelatedAnchors(kind string, anchors []*xpb.CrossReferencesReply_RelatedAnchor) error {
	if len(anchors) > 0 {
		if _, err := fmt.Fprintf(out, "  %s:\n", kind); err != nil {
			return err
		}

		for _, a := range anchors {
			pURI, err := kytheuri.Parse(a.Anchor.Parent)
			if err != nil {
				return err
			}
			if _, err := fmt.Fprintf(out, "    %s\t%s\t[%d:%d-%d:%d)\n      %q\n",
				pURI.Path, showPrintable(a.DisplayName),
				a.Anchor.Start.LineNumber, a.Anchor.Start.ColumnOffset, a.Anchor.End.LineNumber, a.Anchor.End.ColumnOffset,
				string(a.Anchor.Snippet)); err != nil {
				return err
			}
			for _, site := range a.Site {
				if _, err := fmt.Fprintf(out, "      [%d:%d-%d-%d)\n        %q\n",
					site.Start.LineNumber, site.Start.ColumnOffset, site.End.LineNumber, site.End.ColumnOffset,
					string(site.Snippet)); err != nil {
					return err
				}
			}
		}
	}

	return nil
}

func (d *DB) createFileTree() error {
	if _, err := d.Exec(createFilesTable); err != nil {
		return fmt.Errorf("error creating files table: %v", err)
	}

	rs, err := d.Query("SELECT ticket FROM Nodes WHERE node_kind = 'file';")
	if err != nil {
		return fmt.Errorf("error creating files query: %v", err)
	}

	insert, err := d.Prepare(`INSERT INTO Files (corpus, root, path, ticket, file) VALUES ($1, $2, $3, $4, $5);`)
	if err != nil {
		return fmt.Errorf("error preparing statement: %v", err)
	}

	for rs.Next() {
		var ticket string
		if err := rs.Scan(&ticket); err != nil {
			return fmt.Errorf("scan error: %v", err)
		}

		uri, err := kytheuri.Parse(ticket)
		if err != nil {
			return fmt.Errorf("error parsing node ticket %q: %v", ticket, err)
		}

		path, _ := filepath.Split(filepath.Join("/", uri.Path))
		if _, err := insert.Exec(uri.Corpus, uri.Root, path, ticket, true); err != nil {
			return fmt.Errorf("error inserting file: %v", err)
		}

		uri.Signature, uri.Language = "", ""
		for {
			uri.Path = path
			path, _ = filepath.Split(strings.TrimSuffix(path, "/"))
			if path == "" {
				break
			}

			if _, err := insert.Exec(uri.Corpus, uri.Root, path, uri.String(), false); err != nil {
				if err, ok := err.(*pq.Error); ok && err.Code == pqUniqueViolationErrorCode {
					// Since we've found the current directory, we can stop recursively
					// adding parent directories now
					break
				}
				return fmt.Errorf("error inserting directory: %v", err)
			}
		}
	}

	return nil
}

// IndexNode writes each of n's VName components and facts to t as search index
// entries.  MaxIndexedFactValueSize limits fact values written to the index.
func IndexNode(ctx context.Context, t table.Inverted, n *srvpb.Node) error {
	uri, err := kytheuri.Parse(n.Ticket)
	if err != nil {
		return err
	}
	key := []byte(n.Ticket)

	if uri.Signature != "" {
		if err := t.Put(ctx, key, vNameVal("signature", uri.Signature)); err != nil {
			return err
		}
	}
	if uri.Corpus != "" {
		if err := t.Put(ctx, key, vNameVal("corpus", uri.Corpus)); err != nil {
			return err
		}
	}
	if uri.Root != "" {
		if err := t.Put(ctx, key, vNameVal("root", uri.Root)); err != nil {
			return err
		}
	}
	if uri.Path != "" {
		if err := t.Put(ctx, key, vNameVal("path", uri.Path)); err != nil {
			return err
		}
	}
	if uri.Language != "" {
		if err := t.Put(ctx, key, vNameVal("language", uri.Language)); err != nil {
			return err
		}
	}

	for _, f := range n.Fact {
		if len(f.Value) <= MaxIndexedFactValueSize {
			if err := t.Put(ctx, key, factVal(f.Name, f.Value)); err != nil {
				return err
			}
		}
	}

	return nil
}

func displayAnchors(kind string, anchors []*xpb.Anchor) error {
	if len(anchors) > 0 {
		if _, err := fmt.Fprintf(out, "  %s:\n", kind); err != nil {
			return err
		}

		for _, a := range anchors {
			pURI, err := kytheuri.Parse(a.Parent)
			if err != nil {
				return err
			}
			if _, err := fmt.Fprintf(out, "    %s\t[%d:%d-%d:%d)\n      %q\n",
				pURI.Path,
				a.Start.LineNumber, a.Start.ColumnOffset, a.End.LineNumber, a.End.ColumnOffset,
				string(a.Snippet)); err != nil {
				return err
			}
		}
	}

	return nil
}

// Nodes implements part of the xrefs.Service interface.
func (db *DB) Nodes(req *xpb.NodesRequest) (*xpb.NodesReply, error) {
	reply := &xpb.NodesReply{}
	patterns := xrefs.ConvertFilters(req.Filter)
	for _, t := range req.Ticket {
		uri, err := kytheuri.Parse(t)
		if err != nil {
			return nil, fmt.Errorf("invalid ticket %q: %v", t, err)
		}

		rows, err := db.nodeFactsStmt.Query(uri.Signature, uri.Corpus, uri.Root, uri.Language, uri.Path)
		if err != nil {
			return nil, fmt.Errorf("sql select error for node %q: %v", t, err)
		}

		var facts []*xpb.Fact
		for rows.Next() {
			var fact xpb.Fact
			err = rows.Scan(&fact.Name, &fact.Value)
			if err != nil {
				rows.Close()
				return nil, fmt.Errorf("sql scan error for node %q: %v", t, err)
			}
			if len(patterns) == 0 || xrefs.MatchesAny(fact.Name, patterns) {
				facts = append(facts, &fact)
			}
		}
		if err := rows.Close(); err != nil {
			return nil, fmt.Errorf("error closing rows for node %q: %v", t, err)
		}

		if len(facts) != 0 {
			reply.Node = append(reply.Node, &xpb.NodeInfo{
				Ticket: t,
				Fact:   facts,
			})
		}
	}
	return reply, nil
}

func completeDefinition(definesAnchor string) (*definition, error) {
	parentReply, err := xs.Edges(ctx, &xpb.EdgesRequest{
		Ticket: []string{definesAnchor},
		Kind:   []string{schema.ChildOfEdge},
		Filter: []string{schema.NodeKindFact, schema.AnchorLocFilter},
	})
	if err != nil {
		return nil, err
	}

	parentNodes := xrefs.NodesMap(parentReply.Node)
	var files []string
	for _, parent := range xrefs.EdgesMap(parentReply.EdgeSet)[definesAnchor][schema.ChildOfEdge] {
		if string(parentNodes[parent][schema.NodeKindFact]) == schema.FileKind {
			files = append(files, parent)
		}
	}

	if len(files) == 0 {
		return nil, nil
	} else if len(files) > 1 {
		return nil, fmt.Errorf("anchor has multiple file parents %q: %v", definesAnchor, files)
	}

	vName, err := kytheuri.Parse(files[0])
	if err != nil {
		return nil, err
	}
	start, end := parseAnchorSpan(parentNodes[definesAnchor])

	return &definition{
		File:  vName.VName(),
		Start: start,
		End:   end,
	}, nil
}

func main() {
	flag.Parse()
	if *offset < 0 {
		flagutil.UsageError("non-negative --offset required")
	} else if *signature == "" && *path == "" {
		flagutil.UsageError("must provide at least --path or --signature")
	}

	if strings.HasPrefix(*remoteAPI, "http://") || strings.HasPrefix(*remoteAPI, "https://") {
		xs = xrefs.WebClient(*remoteAPI)
		idx = search.WebClient(*remoteAPI)
	} else {
		conn, err := grpc.Dial(*remoteAPI)
		if err != nil {
			log.Fatalf("Error connecting to remote API %q: %v", *remoteAPI, err)
		}
		defer conn.Close()
		xs = xrefs.GRPC(xpb.NewXRefServiceClient(conn))
		idx = search.GRPC(spb.NewSearchServiceClient(conn))
	}

	relPath := *path
	if !*ignoreLocalRepo {
		if _, err := os.Stat(relPath); err == nil {
			absPath, err := filepath.Abs(relPath)
			if err != nil {
				log.Fatal(err)
			}
			kytheRoot := findKytheRoot(filepath.Dir(absPath))
			if kytheRoot != "" {
				relPath, err = filepath.Rel(filepath.Join(kytheRoot, *root), absPath)
				if err != nil {
					log.Fatal(err)
				}
			}
		}
	}
	partialFile := &spb.VName{
		Signature: *signature,
		Corpus:    *corpus,
		Root:      *root,
		Path:      relPath,
		Language:  *language,
	}
	reply, err := idx.Search(ctx, &spb.SearchRequest{
		Partial: partialFile,
		Fact:    fileFacts,
	})
	if err != nil {
		log.Fatalf("Error locating file {%v}: %v", partialFile, err)
	}
	if len(reply.Ticket) == 0 {
		log.Fatalf("Could not locate file {%v}", partialFile)
	} else if len(reply.Ticket) > 1 {
		log.Fatalf("Ambiguous file {%v}; multiple results: %v", partialFile, reply.Ticket)
	}

	fileTicket := reply.Ticket[0]
	decor, err := xs.Decorations(ctx, &xpb.DecorationsRequest{
		// TODO(schroederc): limit Location to a SPAN around *offset
		Location:    &xpb.Location{Ticket: fileTicket},
		References:  true,
		SourceText:  true,
		DirtyBuffer: readDirtyBuffer(ctx),
	})
	if err != nil {
		log.Fatal(err)
	}
	nodes := xrefs.NodesMap(decor.Node)

	en := json.NewEncoder(os.Stdout)
	for _, ref := range decor.Reference {
		start, end := parseAnchorSpan(nodes[ref.SourceTicket])

		if start <= *offset && *offset < end {
			var r reference
			r.Span.Start = start
			r.Span.End = end
			r.Span.Text = string(decor.SourceText[start:end])
			r.Kind = strings.TrimPrefix(ref.Kind, schema.EdgePrefix)
			r.Node.Ticket = ref.TargetTicket

			node := nodes[ref.TargetTicket]
			r.Node.Kind = string(node[schema.NodeKindFact])
			r.Node.Subkind = string(node[schema.SubkindFact])

			if eReply, err := xs.Edges(ctx, &xpb.EdgesRequest{
				Ticket: []string{ref.TargetTicket},
				Kind:   []string{schema.NamedEdge, definedAtEdge},
			}); err != nil {
				log.Printf("WARNING: error getting edges for %q: %v", ref.TargetTicket, err)
			} else {
				edges := xrefs.EdgesMap(eReply.EdgeSet)[ref.TargetTicket]
				for _, name := range edges[schema.NamedEdge] {
					if uri, err := kytheuri.Parse(name); err != nil {
						log.Printf("WARNING: named node ticket (%q) could not be parsed: %v", name, err)
					} else {
						r.Node.Names = append(r.Node.Names, uri.Signature)
					}
				}
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if flag.NArg() > 0 {
		flagutil.UsageErrorf("unknown non-flag argument(s): %v", flag.Args())
	} else if *offset < 0 && (*lineNumber < 0 || *columnOffset < 0) {
		flagutil.UsageError("non-negative --offset (or --line and --column) required")
	} else if *signature == "" && *path == "" {
		flagutil.UsageError("must provide at least --path or --signature")
	}

	defer (*apiFlag).Close()
	xs, idx = *apiFlag, *apiFlag

	relPath := *path
	if *localRepoRoot != "NONE" {
		if _, err := os.Stat(relPath); err == nil {
			absPath, err := filepath.Abs(relPath)
			if err != nil {
				log.Fatal(err)
			}
			if *dirtyBuffer == "" {
				*dirtyBuffer = absPath
			}

			kytheRoot := *localRepoRoot
			if kytheRoot == "" {
				kytheRoot = findKytheRoot(filepath.Dir(absPath))
			}
			if kytheRoot != "" {
				relPath, err = filepath.Rel(filepath.Join(kytheRoot, *root), absPath)
				if err != nil {
					log.Fatal(err)
				}
			}
		}
	}
	partialFile := &spb.VName{
		Signature: *signature,
		Corpus:    *corpus,
		Root:      *root,
		Path:      relPath,
		Language:  *language,
	}
	reply, err := idx.Search(ctx, &spb.SearchRequest{
		Partial: partialFile,
		Fact:    fileFacts,
	})
	if err != nil {
		log.Fatalf("Error locating file {%v}: %v", partialFile, err)
	}
	if len(reply.Ticket) == 0 {
		log.Fatalf("Could not locate file {%v}", partialFile)
	} else if len(reply.Ticket) > 1 {
		log.Fatalf("Ambiguous file {%v}; multiple results: %v", partialFile, reply.Ticket)
	}

	fileTicket := reply.Ticket[0]
	text := readDirtyBuffer(ctx)
	decor, err := xs.Decorations(ctx, &xpb.DecorationsRequest{
		// TODO(schroederc): limit Location to a SPAN around *offset
		Location:    &xpb.Location{Ticket: fileTicket},
		References:  true,
		SourceText:  true,
		DirtyBuffer: text,
		Filter: []string{
			schema.NodeKindFact,
			schema.SubkindFact,
			schema.AnchorLocFilter, // TODO(schroederc): remove once backwards-compatibility fix below is removed
		},
	})
	if err != nil {
		log.Fatal(err)
	}
	if text == nil {
		text = decor.SourceText
	}
	nodes := xrefs.NodesMap(decor.Node)

	// Normalize point within source text
	point := normalizedPoint(text)

	en := json.NewEncoder(os.Stdout)
	for _, ref := range decor.Reference {
		var start, end int
		if ref.AnchorStart == nil || ref.AnchorEnd == nil {
			// TODO(schroederc): remove this backwards-compatibility fix
			start, end = parseAnchorSpan(nodes[ref.SourceTicket])
		} else {
			start, end = int(ref.AnchorStart.ByteOffset), int(ref.AnchorEnd.ByteOffset)
		}

		if start <= point && point < end {
			var r reference
			r.Span.Start = start
			r.Span.End = end
			r.Span.Text = string(text[start:end])
			r.Kind = strings.TrimPrefix(ref.Kind, schema.EdgePrefix)
			r.Node.Ticket = ref.TargetTicket

			node := nodes[ref.TargetTicket]
//.........这里部分代码省略.........

func main() {
	flag.Parse()
	if flag.NArg() > 0 {
		flagutil.UsageErrorf("unknown non-flag argument(s): %v", flag.Args())
	} else if *offset < 0 && (*lineNumber < 0 || *columnOffset < 0) {
		flagutil.UsageError("non-negative --offset (or --line and --column) required")
	} else if *path == "" {
		flagutil.UsageError("must provide --path")
	}

	defer (*apiFlag).Close()
	xs = *apiFlag

	relPath := *path
	if *localRepoRoot != "NONE" {
		if _, err := os.Stat(relPath); err == nil {
			absPath, err := filepath.Abs(relPath)
			if err != nil {
				log.Fatal(err)
			}
			if *dirtyBuffer == "" {
				*dirtyBuffer = absPath
			}

			kytheRoot := *localRepoRoot
			if kytheRoot == "" {
				kytheRoot = findKytheRoot(filepath.Dir(absPath))
			}
			if kytheRoot != "" {
				relPath, err = filepath.Rel(filepath.Join(kytheRoot, *root), absPath)
				if err != nil {
					log.Fatal(err)
				}
			}
		}
	}

	fileTicket := (&kytheuri.URI{Corpus: *corpus, Root: *root, Path: relPath}).String()
	point := &xpb.Location_Point{
		ByteOffset:   int32(*offset),
		LineNumber:   int32(*lineNumber),
		ColumnOffset: int32(*columnOffset),
	}
	dirtyBuffer := readDirtyBuffer(ctx)
	decor, err := xs.Decorations(ctx, &xpb.DecorationsRequest{
		Location: &xpb.Location{
			Ticket: fileTicket,
			Kind:   xpb.Location_SPAN,
			Start:  point,
			End:    point,
		},
		SpanKind:    xpb.DecorationsRequest_AROUND_SPAN,
		References:  true,
		SourceText:  true,
		DirtyBuffer: dirtyBuffer,
		Filter: []string{
			facts.NodeKind,
			facts.Subkind,
		},
	})
	if err != nil {
		log.Fatal(err)
	}
	nodes := xrefs.NodesMap(decor.Nodes)

	en := json.NewEncoder(os.Stdout)
	for _, ref := range decor.Reference {
		start, end := int(ref.AnchorStart.ByteOffset), int(ref.AnchorEnd.ByteOffset)

		var r reference
		r.Span.Start = start
		r.Span.End = end
		if len(dirtyBuffer) > 0 {
			r.Span.Text = string(dirtyBuffer[start:end])
		} // TODO(schroederc): add option to get anchor text from DecorationsReply
		r.Kind = strings.TrimPrefix(ref.Kind, edges.Prefix)
		r.Node.Ticket = ref.TargetTicket

		node := nodes[ref.TargetTicket]
		r.Node.Kind = string(node[facts.NodeKind])
		r.Node.Subkind = string(node[facts.Subkind])

		// TODO(schroederc): use CrossReferences method
		if eReply, err := xrefs.AllEdges(ctx, xs, &gpb.EdgesRequest{
			Ticket: []string{ref.TargetTicket},
			Kind:   []string{edges.Named, edges.Typed, definedAtEdge, definedBindingAtEdge},
		}); err != nil {
			log.Printf("WARNING: error getting edges for %q: %v", ref.TargetTicket, err)
		} else {
			matching := xrefs.EdgesMap(eReply.EdgeSets)[ref.TargetTicket]
			for name := range matching[edges.Named] {
				if uri, err := kytheuri.Parse(name); err != nil {
					log.Printf("WARNING: named node ticket (%q) could not be parsed: %v", name, err)
				} else {
					r.Node.Names = append(r.Node.Names, uri.Signature)
				}
			}

			for typed := range matching[edges.Typed] {
				r.Node.Typed = typed
//.........这里部分代码省略.........

				return errors.New("--files and --dirs are mutually exclusive")
			}

			if len(flag.Args()) == 0 {
				req := &ftpb.CorpusRootsRequest{}
				logRequest(req)
				cr, err := ft.CorpusRoots(ctx, req)
				if err != nil {
					return err
				}
				return displayCorpusRoots(cr)
			}
			var corpus, root, path string
			switch len(flag.Args()) {
			case 1:
				uri, err := kytheuri.Parse(flag.Arg(0))
				if err != nil {
					log.Fatalf("invalid uri %q: %v", flag.Arg(0), err)
				}
				corpus = uri.Corpus
				root = uri.Root
				path = uri.Path
			default:
				flag.Usage()
				os.Exit(1)
			}
			path = filepath.Join("/", path)
			req := &ftpb.DirectoryRequest{
				Corpus: corpus,
				Root:   root,
				Path:   path,

// Edges implements part of the xrefs.Service interface.
func (db *DB) Edges(req *xpb.EdgesRequest) (*xpb.EdgesReply, error) {
	if req.PageSize != 0 || req.PageToken != "" {
		return nil, errors.New("edge pages unimplemented for SQL DB")
	}
	reply := &xpb.EdgesReply{}

	allowedKinds := stringset.New(req.Kind...)

	nodeTickets := stringset.New()
	for _, t := range req.Ticket {
		uri, err := kytheuri.Parse(t)
		if err != nil {
			return nil, err
		}

		edges := make(map[string]stringset.Set)
		var (
			target kytheuri.URI
			kind   string
		)

		rows, err := db.edgesStmt.Query(uri.Signature, uri.Corpus, uri.Root, uri.Path, uri.Language)
		if err != nil {
			rows.Close()
			return nil, fmt.Errorf("forward edges query error: %v", err)
		}
		for rows.Next() {
			if err := rows.Scan(&target.Signature, &target.Corpus, &target.Root, &target.Path, &target.Language, &kind); err != nil {
				rows.Close()
				return nil, fmt.Errorf("forward edges scan error: %v", err)
			} else if len(allowedKinds) != 0 && !allowedKinds.Contains(kind) {
				continue
			}

			targets, ok := edges[kind]
			if !ok {
				targets = stringset.New()
				edges[kind] = targets
			}

			ticket := target.String()
			targets.Add(ticket)
			nodeTickets.Add(ticket)
		}
		if err := rows.Close(); err != nil {
			return nil, err
		}

		rows, err = db.revEdgesStmt.Query(uri.Signature, uri.Corpus, uri.Root, uri.Path, uri.Language)
		if err != nil {
			rows.Close()
			return nil, fmt.Errorf("reverse edges query error: %v", err)
		}
		for rows.Next() {
			if err := rows.Scan(&target.Signature, &target.Corpus, &target.Root, &target.Path, &target.Language, &kind); err != nil {
				rows.Close()
				return nil, fmt.Errorf("reverse edges scan error: %v", err)
			}

			kind = schema.MirrorEdge(kind)
			if len(allowedKinds) != 0 && !allowedKinds.Contains(kind) {
				continue
			}

			targets, ok := edges[kind]
			if !ok {
				targets = stringset.New()
				edges[kind] = targets
			}

			ticket := target.String()
			targets.Add(ticket)
			nodeTickets.Add(ticket)
		}
		if err := rows.Close(); err != nil {
			return nil, err
		}

		var g []*xpb.EdgeSet_Group
		for kind, targets := range edges {
			g = append(g, &xpb.EdgeSet_Group{
				Kind:         kind,
				TargetTicket: targets.Slice(),
			})
		}

		if len(g) != 0 {
			reply.EdgeSet = append(reply.EdgeSet, &xpb.EdgeSet{
				SourceTicket: t,
				Group:        g,
			})
		}
	}

	nodesReply, err := db.Nodes(&xpb.NodesRequest{
		Ticket: nodeTickets.Slice(),
		Filter: req.Filter,
	})
	if err != nil {
//.........这里部分代码省略.........

// Decorations implements part of the xrefs.Service interface.
func (db *DB) Decorations(req *xpb.DecorationsRequest) (*xpb.DecorationsReply, error) {
	if req.GetLocation() == nil {
		return nil, errors.New("missing location")
	} else if req.Location.Kind != xpb.Location_FILE {
		return nil, fmt.Errorf("%s location kind unimplemented", req.Location.Kind)
	} else if len(req.DirtyBuffer) != 0 {
		return nil, errors.New("dirty buffers unimplemented")
	}

	fileTicket := req.Location.Ticket

	edgesReply, err := db.Edges(&xpb.EdgesRequest{
		Ticket: []string{fileTicket},
		Kind:   []string{revChildOfEdge},
		Filter: []string{schema.NodeKindFact, schema.TextFact, schema.TextEncodingFact},
	})
	if err != nil {
		return nil, err
	}

	reply := &xpb.DecorationsReply{
		Location: &xpb.Location{
			Ticket: fileTicket,
		},
	}

	nodes := xrefs.NodesMap(edgesReply.Node)

	if req.SourceText {
		if nodes[fileTicket] == nil {
			nodesReply, err := db.Nodes(&xpb.NodesRequest{Ticket: []string{fileTicket}})
			if err != nil {
				return nil, err
			}
			nodes = xrefs.NodesMap(nodesReply.Node)
		}
		reply.SourceText = nodes[fileTicket][schema.TextFact]
		reply.Encoding = string(nodes[fileTicket][schema.TextEncodingFact])
	}

	nodeTickets := stringset.New()

	if req.References {
		// Traverse the following chain of edges:
		//   file --%/kythe/edge/childof-> []anchor --forwardEdgeKind-> []target
		edges := xrefs.EdgesMap(edgesReply.EdgeSet)

		for _, anchor := range edges[fileTicket][revChildOfEdge] {
			if string(nodes[anchor][schema.NodeKindFact]) != schema.AnchorKind {
				continue
			}

			uri, err := kytheuri.Parse(anchor)
			if err != nil {
				return nil, fmt.Errorf("invalid anchor ticket found %q: %v", anchor, err)
			}
			rows, err := db.anchorEdgesStmt.Query(schema.ChildOfEdge, uri.Signature, uri.Corpus, uri.Root, uri.Path, uri.Language)
			if err != nil {
				return nil, fmt.Errorf("anchor %q edge query error: %v", anchor, err)
			}

			for rows.Next() {
				var target kytheuri.URI
				var kind string
				if err := rows.Scan(&target.Signature, &target.Corpus, &target.Root, &target.Path, &target.Language, &kind); err != nil {
					return nil, fmt.Errorf("anchor %q edge scan error: %v", anchor, err)
				}
				ticket := target.String()
				reply.Reference = append(reply.Reference, &xpb.DecorationsReply_Reference{
					SourceTicket: anchor,
					Kind:         kind,
					TargetTicket: ticket,
				})
				nodeTickets.Add(anchor, ticket)
			}
		}
	}

	nodesReply, err := db.Nodes(&xpb.NodesRequest{Ticket: nodeTickets.Slice()})
	if err != nil {
		return nil, err
	}
	reply.Node = nodesReply.Node

	return reply, nil
}