node

type Link struct {
	// utf string name. should be unique per object
	Name string // utf8

	// cumulative size of target object
	Size uint64

	// multihash of the target object
	Cid *cid.Cid
}

type Node interface {
	Resolve(path []string) (interface{}, []string, error)
	ResolveLink(path []string) (*Link, []string, error)
	Tree() []string
	Cid() *cid.Cid

	Links() []*Link

	//
	Stat() (*NodeStat, error)
	Size() (uint64, error)

	// RawData marshals the node and returns the marshaled bytes
	RawData() []byte

	String() string
	Loggable() map[string]interface{}
}

type NodeGetter interface {
	Get(context.Context, *cid.Cid) (Node, error)
}

type NodeStat struct {
	Hash           string
	NumLinks       int // number of links in link table
	BlockSize      int // size of the raw, encoded data
	LinksSize      int // size of the links segment
	DataSize       int // size of the data segment
	CumulativeSize int // cumulative size of object and its references
}