stats_server/views/statics/main.js
function(classes) {
            var map = {};

            function find(name, data) {
                var node = map[name], i;
                if (!node) {
                    node = map[name] = data || {name: name, children: []};
                    if (name.length) {
                        node.parent = find("");
                        node.parent.children.push(node);
                        node.name = name;
                        node.key = escapeId(name);
                    }
                }
                return node;
            }

            classes.forEach(function(d) {
                find(d.name, d);
            });

            return map[""];
        }
function(classes) {
            var map = {};

            function find(name, data) {
                var node = map[name], i;
                if (!node) {
                    node = map[name] = data || {name: name, children: []};
                    if (name.length) {
                        node.parent = find("");
                        node.parent.children.push(node);
                        node.name = name;
                        node.key = escapeId(name);
                    }
                }
                return node;
            }

            classes.forEach(function(d) {
                find(d.name, d);
            });

            return map[""];
        }
Lazily construct the package hierarchy from class names.